1 (An autonomous Institute of Dept. of Biotechnology, Ministry of Science & Technology, Govt. of India) T E N D E R D O C U M E N T FOR Design, construction, testing, commissioning, validation, and other associated works of the Bio-Safety Level-3 (BSL-3) laboratory facility on a turnkey basis and its comprehensive operation during the defect liability period of two years at the NCR Biotech Science Cluster (NCR-BSC), Faridabad, Haryana FEBRUARY, 2014 (Tender No. : THSTI/Eng./01/BSL-3/2013-14) EXECUTIVE DIRECTOR TRANSLATIONAL HEALTH SCIENCE AND TECHNOLOGY INSTITUTE 496, UDYOG VIHAR, PHASE – III GURGAON, HARYANA PHONE No. : 0124-2876 300 FAX: 0124-2876 402
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(An autonomous Institute of Dept. of Biotechnology, Ministry of Science & Technology, Govt. of India)
T E N D E R D O C U M E N T
FOR
Design, construction, testing, commissioning, validation, and other
associated works of the Bio-Safety Level-3 (BSL-3) laboratory facility
on a turnkey basis and its comprehensive operation during the defect
liability period of two years at the NCR Biotech Science Cluster
(NCR-BSC), Faridabad, Haryana
FEBRUARY, 2014
(Tender No. : THSTI/Eng./01/BSL-3/2013-14)
EXECUTIVE DIRECTOR
TRANSLATIONAL HEALTH SCIENCE AND TECHNOLOGY INSTITUTE
496, UDYOG VIHAR, PHASE – III GURGAON, HARYANA
PHONE No. : 0124-2876 300 FAX: 0124-2876 402
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INDEX Part No. Particulars Page No.
Part - A Notice Inviting Tender and Pre-qualification criteria 3-9
Part - B Instructions to bidders 10-13
Part - C General Conditions of Contract 14-21
Part - D Specific Conditions of Contract and Annexures-I to XIV 22-45
Part - E Technical Details 46-158
Part – F Proposed Drawings 159-169
Part – G Price bid Format 170-246
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PART – A
(NOTICE INVITING TENDER)
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TRANSLATIONAL HEALTH SCIENCE AND TECHNOLOGY INSTITUTE
This will include the following systems; Power supply and distribution system,Water supply and distribution
system, Internal/external communication system, Disinfection/decontamination system, Effluent treatment and
disposal system, Solid waste treatment and disposal system.
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(vi) Laboratory Validation Procedures and Details
(vii) Laboratory Security protocols
(viii) Project Implementation Methodology in relation to the PERT chart
(ix) Availability of construction plant and equipments.
The details given by the bidders in the Bid-I documents and explained during the presentation, will be evaluated by
scoring method. In case any information is not supported with documentary proof, it will be presumed that the bidder
does not have that particular facility/performance. Marking shall be done for each component based on documentary
evidence and presentation by the bidder wherever called for and the Technical Presentation to be given by the Bidder to
the evaluation committee of THSTI. The scores for the various criteria for the purpose of technical evaluation shall be
as follows.
S.No. Category Overall
Marks
Sub
Marks
1.0 TECHNICAL QUALIFICATION CRITERIA
1.1 Evaluation of Design & Planning Capability: 18
a. Architectural and technical layout plans
2
b. Men & materials movement plans
2
c. Zoning plans
2
d. Specialized Systems and Services
2
e. Services & utilities scheme
2
f. Laboratory validation schemes
2
g. Laboratory security schemes 2
h. Project implementation methodology 4
1.2 Evaluation of Personnel, Equipment and Financial capability 09
a. Personnel Capabilities (Annexure IV ) 3
b. Equipment Capabilities (Annexure V) 3
c. Financial Capabilities (Annexure VI)
3
1.3 Evaluation of experience of construction of projects of similar
nature & complexity : (Annexure VII)
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a. Magnitude/Value of the project
8
b. Nature and complexity 8
c. Completion within stipulated time 7
Total Marks 50 50
(c) Final short-list
The name of firms who score minimum 35 marks or above in the evaluation at the 2nd
stage screening of bid-I will be
included in the ‘Final short list’ and will become eligible for opening of their bid-II. The final short listed bidders will
be invited to give views/comments for any effective value addition on the technical aspects of the proposed works. If
any such suggestions are accepted by THSTI, the same will be incorporated in the tender document and suitable
amendment will be issued for the same. In case there is any financial implication due to such amendment, the
shortlisted bidders will be permitted to submit their supplementary price bid and the same will be opened along with the
bid-II.
10.0 Opening of bid-II
The bid-II (inclusive of supplementary price bids, if any) of final short listed bidders only will be opened at a date and
time to be decided by the competent authority and will be communicated to the concerned parties.
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11.0 Evaluation of bid-II and award of contract
The contract will be awarded to the Bidder whose Bid has been determined to be eligible and to be substantially
responsive to the Bid documents and who has offered the lowest evaluated bid.
Engineer (IEE)
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PART – B
(INSTRUCTIONS TO BIDDERS)
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INSTRUCTIONS TO BIDDERS
1.0 The Employer
1.1 The Translational Health Science and Technology Institute (THSTI), Gurgaon shall be the employer of the subject
work. All documents relating to Labour License for obtaining necessary clearance etc is to be signed /endorsed by
representative of the Employer.
2.0 Cost of Bidding
2.1. The Bidder shall bear all costs associated with the preparation and submission of his Bids and "The Employer"
will in no case be responsible or liable for those costs, regardless of the conduct or outcome of the Bidding
process.
3.0 Site Visit
3.1. The Bidder is advised to acquaint himself with the job involved, visit the Site & examine soil conditions (No
report will be provided by Engineer), climatic conditions, labour, power, water, material availability, transport and
communication facilities, environmental regulations, laws and bye-laws of Statutory bodies of Govt. of Haryana
and the Govt. of India and collect all information that will be necessary for preparing the Bid and entering into a
Contract. The cost of visiting the Site and collecting information for the purpose of submission of the Bid shall be
to the Bidder's account.
3.2. The Bidder and any of his personnel or agents will be granted permission by the Employer to enter upon the Site
for the purpose of such inspection, but only upon the express condition that the Bidder, his personnel or agents
will release and indemnify the Employer and Employer's Personnel and agents from and against all liability in
respect thereof and will be responsible for personnel injury (Whether fatal or otherwise), loss of or damage to
property and any other loss, damage, costs and expense however caused, which, but for the exercise of such
permission would not have arisen. 4.0 Bid Prices
4.1. The Bidder shall fill the rates in the respective columns in Indian Rupees in the bid-II. Correction, if any, shall be
made by crossing out, initialing, dating, stamping and rewriting. Wherever in any head if the same items are
appearing and contractor has quoted different rates, contractor shall be paid the lowest quoted rate for such items.
4.2. All duties, taxes including works contract tax, building & construction/ labour cess etc and other levies payable by
the Contractor under the Contract including Contractors profit and over heads etc. or for any other cost shall be
included in the rates and prices and the total amount of Bid submitted by the Bidder. The evaluation and
comparison of Bids by the THSTI shall be made accordingly.
4.3. The rates and prices quoted by the Bidder shall be fixed for items complete in all respect for the duration of the
Contract and not subject to adjustment on any account except as otherwise provided in the conditions of Contract.
5.0 Bid Validity
5.1. The Bid shall remain valid and open for acceptance for a period of 180 days from the last date fixed for receiving
the same. In exceptional circumstances prior to expiry of the original Bid validity period, THSTI may request the
Bidder for a specified extension in the period of validity. The request and the responses thereto shall be made in
writing or by fax or email. A Bidder may refuse the request without forfeiting his Bid Security. A Bidder agreeing
to the request will neither be required nor permitted to modify his Bid, but will be required to extend the validity
of his Bid correspondingly.
6.0 Bid Security
6.1. The Bidder shall furnish, as part of his Bid, a Bid Security of the amount of Rs. 23,75,000/- (Twenty three lakhs
seventy five thousand Only) along with his Bid-I. The Bid Security shall be in the form of a Demand Draft in
favour of “Executive Director, Translational Health Science and Technology Institute” payable at Gurgaon from
any Nationalised bank/Scheduled bank.The Bid Securities of unsuccessful Bidders will be returned as promptly as
possible as but not later than 30 days after the expiration of the period of Bid validity prescribed by the Employer.
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6.2. The Bid Security of the successful Bidder will be returned upon the Bidder executing the Contract and furnishing
the required Performance Security. 7.0 Format and Signing of Bid
7.1. The Tender shall be filled & signed only by the firm/ corporation in whose name the Tenders have been issued.
The Bid shall be typed or written in indelible ink and duly signed by a person or persons duly authorised to being
the Bidder to the Contract.
7.2. The complete Bid shall be without alterations interlining and erasures except those to accord with instruction
issued by the THSTI or as necessary to correct errors made by the Bidder in which case such correction shall be
initialled by person signing the Bid. 8.0 Late Bids
8.1. Any Bid received by THSTI after the prescribed deadline for submission will liable to be rejected and will be
returned unopened to the Bidder.
9.0 Modification and Withdrawal of Bid
9.1. The Bidder may modify or withdraw his Bid after Bid submission, provided that modification or notice of
withdrawal is received in writing by the THSTI prior to the prescribed deadline for submission of Bids.
9.2. The Bidder's modification or notice of withdrawal shall be prepared, sealed, marked and despatched in accordance
with the provisions for the submission of Bids. No Bid may be modified subsequent to the dead line for
submission of Bids.
9.3. Subsequent to the expiration of the period of validity of Bids prescribed in the Bid documents, a successful Bidder
who has not been notified by the THSTI of the Award of the Contract may withdraw his Bid without penalty.
10.0 Notification of Award
10.1. Prior to the expiration of the prescribed period of Bid validity, the THSTI will notify the successful Bidder by fax
or by registered letter that his Bid has been accepted. The notification of Award will constitute the formation of
the Contract. Upon the furnishing by the successful Bidder of a Performance Security in accordance with the
provisions of Clause 12, the THSTI will promptly notify the unsuccessful Bidders that their Bids have been
unsuccessful.
11.0 Signing of Agreement
11.1. Upon the receipt of the notification of Award by the successful Bidder, the successful Bidder shall fill the
Agreement in accordance with form of Agreement included in the Bid documents and submit the same to the
Employer within two weeks of the date of receipt of notification of Award. The Employer shall return the draft
duly approved within one day from the date of receipt of the draft and the successful Bidder shall get the same
engrossed, have the correct amount to stamp duly adjudicated by Superintendent of Stamps and thereafter return
the same duly signed and executed on behalf of the successful Bidder, all at his own cost within 3 days from the
receipt of the approved draft.( Refer annexure ‘XI’)
12.0 Performance Security
12.1. Within 15 days of receipt of the notification of Award from the THSTI, the successful Bidder shall furnish to the
Employer a Security in the form of a Bank Guarantee from Nationalised/Scheduled bank for an amount of 5
percent of the Contract sum as per format prescribed at Annexure-XII .
12.2. The validity of the Performance Security as per the Notification of Award for work shall be upto the end of the
Defect Liability Period with 3 months claim period after expiry of defect liability period.
12.3. In cases, where the aggregate of expected Contract payment would at any time exceed the Engineer's estimate of
actual work performed by more than the amount of Performance Security specified in Clause 12.1 such Security
shall be increased accordingly at the expense of the successful Bidder.
12.4. Failure of the successful Bidder to lodge the required Bank Guarantee shall constitute sufficient grounds for the
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annulment of the Award and forfeiture of the Bid Security, in which event the Employer may make the Award to
the next lowest evaluated Bidder or, if there are no other Bidders, call for new Bids.
Engineer (IEE)
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PART – C
(GENERAL CONDITIONS OF CONTRACT)
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GENERAL CONDITIONS OF CONTRACT
1.0 Definitions and Interpretation
1.1 In the Contract (as hereinafter defined) the following words and expressions shall have the meanings hereby
assigned to them except where the context otherwise requires:
(a) i "Employer" means THSTI or any other person authorized by THSTI in this behalf.
ii.
"Engineer" means the person appointed by THSTI to act as Engineer for the purposes of the
contract.
iii. "Contractor" means an individual or firms (proprietary or partnership) whether incorporated or
not, that has entered into contract (with the employer) and shall include his/ its heirs, legal
representatives, successors and assigns, successors in interest of individuals or persons.
Composing such firms or successors of such firms or the permitted assigns of such individual or
firms. Changes in the constitution of the firm, if any shall be immediately notified to the
employer, in writing and approval obtained for continued performance of the contract.
iv.
"Subcontractor" any person to whom a part of the Works has been subcontracted by the contractor
with the consent of the Engineer and the legal successors in title to such person, but not any
assignee of any such person.
(b)
i.
"Contract" means this tender document conditions, the Specification, the Drawings (if any), the
Bill of Quantities, the Letter of Acceptance, the Contract Agreement (if completed) and such
further documents as may be expressly incorporated in the Letter of Acceptance or Contract
Agreement (if completed).
ii. "Specification" means the specification of the Works included in the Contract and any
modification thereof or addition thereto made or submitted by the Contractor and approved by the
Engineer.
iii.
"Drawings" means all drawings, calculations and technical information of a like nature provided
by the Engineer to the Contractor under the Contract and all drawings, calculations, samples,
patterns, models, operation and maintenance manuals and other technical information of a like
nature submitted by the Contractor and approved by the Engineer.
iv.
"Tender" means the Contractor's priced offer to the Employer for the execution and completion
of the Works and the remedying of any defects therein in accordance with the provisions of
the Contract, as accepted by the Letter of Acceptance. The word Tender is synonymous with
"Bid" and the words "Tender Documents" with "Bidding Documents".
(c)
i.
"Commencement Date" means the date upon which the Contractor receives the notice to
commence the works as issued by the Employer.
ii.
"Time for Completion" means the time for completing the execution of and passing the Tests on
Completion of the Works or any Section or part thereof as stated in the Contract calculated from
the Commencement Date.
iii.
"Contract Price" means the sum stated in the Letter of Acceptance as payable to the Contractor for
the execution and completion of the Works and the remedying of any defects therein in accordance
with the provisions of the Contract.
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iv.
"Plant" means machinery, apparatus and the like intended to form or forming part of the Permanent
Works.
v. "Contractor's Equipment" means all appliances and things of whatsoever nature (other than
Temporary Works) required for the execution and completion of the Works and the remedying of
any defects therein, but does not include Plant, materials or other things intended to form or
forming part of the Permanent Works.
vi. "Section" means a part of the Works specifically identified in the Contract as a Section.
2.0 Commencement of Works
2.1 The Contractor shall commence the Works within 2 weeks from the date of receipt of notice by him to this effect
from the Employer to proceed with the works with due expedition and without delay.
3.0 Assignment of Contract
3.1 The Contractor shall not, without the prior consent of the THSTI, assign the Contract or any part thereof, or any
benefit or interest therein or thereunder, otherwise than by:
(a) a charge in favour of the Contractor's bankers of any monies due or to become due under the Contract, or
(b) assignment to the Contractor's insurers (in cases where the insurers have discharged the Contractor's loss or
liability) of the Contractor's right to obtain relief against any other party liable. The provision of labour as
piece work basis shall not deemed to be subcontracting under this clause.
4.0 Sub-Contracting
4.1 The Contractor shall not subcontract the whole or part of the works of the Works. Except where otherwise
provided by the Contract, the Contractor shall not subcontract any other part of the works without the prior
consent of the Engineer (which consent shall be at the sole discretion of the Employer). While subcontracting, the
contractor will consider the parties / agencies depending upon their capabilities and get the works implemented
under his own overall supervision. However this shall not relieve the Contractor from any liability or obligation
under the Contract and he shall be responsible for the acts, defaults and neglects of a Subcontractor, his agents,
servants or workmen as if they were the acts, defaults or neglects of the Contractor, his agents, servants or
workmen.
Provided that the Contractor shall not be required to obtain such consent for:
(a) the provision of labour,
(b) the purchase of materials which are in accordance with the standards specified in the Contract.
5.0 Priority of Contract Documents
5.1 The several documents forming the Contract are to be taken as mutually explanatory to one another, detailed
drawings being followed in preference to small scale drawing and figured dimensions in preference to scale and
special conditions in preference to General Conditions.
5.2 In case of discrepancy between the schedule of quantities, the specifications and or the drawings, the following
order of preference shall be observed:
(a) Description of Schedule of Quantities and scope of work
(b) Particular specifications and special condition, if any
(c) Drawings
(d) C.P.W.D Specifications (Applicable to civil and electrical works)
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(e) Indian Standard specifications of B.I.S and other relevant reference standards
5.3 If there are varying or conflicting provisions made in any one document forming part of the Contract, THSTI
shall be the deciding authority with regard to the intention of the document and his decision shall be final and
binding on the contractor.
5.4 Any error in description, quantity or rate in schedule of quantities or any omission there from shall not vitiate the
Contract or release the contractor from the execution of the whole or any part of the works comprised therein
according to drawings and specifications or from any of his obligations under the Contract.
6.0 Custody and Supply of Drawings and Documents
6.1 The Drawings shall remain in the sole custody of the Engineer, but two copies thereof shall be provided to the
Contractor free of charge. The Contractor shall make at his own cost any further copies required by him. Unless it
is strictly necessary for the purposes of the Contract, the Drawings, Specification and other documents provided
by the Employer or the Engineer shall not, without the consent of the Employer, be used or communicated to a
third party by the Contractor. Upon issue of the Defects Liability Certificate, the Contractor shall return to the
Engineer all Drawings, Specifications and other documents provided under the Contract.
7.0 One Copy of Drawings to be kept on Site
7.1 One copy of the Drawings, provided to or supplied by the Contractor as aforesaid, shall be kept by the Contractor
on the Site and the same shall at all reasonable times be available for inspection and use by the Engineer/
Employer and by any other person authorised by the Employer in writing.
8.0 Disruption of Progress
8.1 The Contractor shall give notice to the Employer through Engineer, whenever planning or execution of the
Works is likely to be delayed or disrupted due to delay in approval or issue of instruction by the Engineer within
15 days or such other reasonable time as may be decided by the Employer. The notice shall include details of the
drawing or instruction required and of why and by when it is required and of any delay or disruption likely to be
suffered if it is late.
9.0 Delay and Cost of Delay of Drawings
9.1 If, by reason of any failure or inability of the Engineer to issue, within a time reasonable in all the circumstances,
any drawing or instruction for which notice has been given by the Contractor as, the Contractor suffers delay then
the Engineer shall, after due consultation with the Employer and the Contractor, determine any extension of time
to which the Contractor is entitled to as per rules.
10.0 Supplementary Drawings and Instructions
10.1 The Engineer shall have authority to issue to the Contractor, from time to time, such supplementary drawings and
instructions as shall be necessary for the purpose of the proper and adequate execution and completion of the
Works and the remedying of any defects therein. The Contractor shall carry out and be bound by the same.
11.0 Revised Programme
11.1 If at any time it should appear to the Engineer that the actual progress of the Works does not conform to the
PERT schedule, the Contractor shall produce, at the request of the Engineer, a revised programme showing the
modifications to such programme necessary to ensure completion of the Works within the Time for Completion.
12.0 Inspection of Operations
12.1 The Engineer, and any person authorised by him, shall at all reasonable times have access to the Site and to all
workshops and places where materials or Plant are being manufactured, fabricated or prepared for the Works and
the Contractor shall afford every facility for and every assistance in obtaining the right to such access.
13.0 Rejection
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13.1 If the materials or Plant are not ready for inspection or testing as per schedule or if, as result of the inspection or
testing referred to in this Clause, the Engineer determines that the materials or Plant are defective or otherwise
not in accordance with the Contract, he may reject the materials or Plant and shall notify the Contractor thereof
immediately. The notice shall state the Engineer’s objections with reasons. The Contractor shall then promptly
make good the defect or ensure that rejected materials or Plant comply with the Contract. If the engineer so
requests, the test of rejected materials or Plant shall be made or repeated under the same terms and conditions. All
costs incurred by the Employer by the repetition of the tests shall, after due consultation with the Employer and
the Contractor, be determined by the Engineer and shall be recoverable from the Contractor by the Employer and
may be deducted from any monies due or to become due to the Contractor and the Engineer shall notify the
Contractor accordingly, with a copy to the Employer.
14.0 Independent Inspection
14.1 The Employer/Engineer may delegate inspection and testing of materials or Plant to an independent inspector.
Any such delegation for this purpose to such independent inspector shall be considered as an assistant of the
Engineer. Notice of such appointment (no being less than 14 days) shall be given by the Employer/Engineer to
the Contractor.
15.0 Examination of Work before Covering up
15.1 No part of the Work shall be covered up or put out of view without the approval of the Engineer and the
Contractor shall afford full opportunity for the Engineer to examine and measure any such part of the Works
which is about to be covered up or put out of view and to examine foundations before any part of the work is
placed thereon. The Contractor shall give notice to the Engineer whenever any such part of the Works or
foundations is or are ready or about to be ready for examination and the engineer shall unless he considers it
unnecessary and advises the Contractor accordingly, attend for the purpose of examining and measuring such part
of the Works or of examining such foundations.
16.0 Suspension of Work
16.1 The Contractor shall, on the instructions of the Engineer/ Employer, suspend the progress of the Works or any
part thereof for such time and in such manner as the Engineer may consider necessary and shall, during
such suspension, properly protect and secure the Works or such part thereof so far as is necessary in the opinion
of the Engineer/Employer. 17.0 Time for Completion
17.1 The whole of the Works and, if applicable, any Section required to be completed within a particular time as stated
in the Appendix to Tender, shall be completed, within the time stated in the Appendix to Tender (Annexure XIV)
for completion of the whole of the Works or the Section (as the case may be), calculated from the
Commencement Date, or such extended time as may be allowed under this contract.
18.0 Liquidated Damages for Delay
18.1 If the Contractor fails to complete the execution of and passing the test on completion of the works or any
section by the time for completion, within the relevant time prescribed by Clause 17.1, then the Contractor shall
pay to the Employer liquidated damages at the rate of the 0.5 % of contract value for per week of delay or part
thereof subject to maximum of 5% of the contract value.The Employer may, without prejudice to any other
method of recovery, deduct the amount of such damages from any monies due or to become due to the
Contractor. The payment or deduction of such damages shall not relieve the Contractor from his obligation to
complete the Works, or from any other of his obligations and liabilities under the contract.
18.2 If, before the Time for Completion of the whole of the Works or, if applicable, any Section, a Taking-Over
Certificate has been issued for any part of the Works or of a Section, the liquidated damages for delay in
completion of the reminder of the Works or of that Section shall, for any period of delay after date stated in such
Taking-Over Certificate, and in the absence of alternative provisions in the Contract, be reduced in the proportion
which the value of the part so certified bears to the value of the whole of the Works or Section, as applicable. The
Provisions of this Sub-Clause shall only apply to the rate of liquidated damages and shall not affect the limit
thereof.
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19.0 Taking-Over Certificate
19.1 When the whole of the Works have been completed and all the equipments and systems have satisfactorily passed
the Tests on Completion and the equipments and systems have been satisfactorily Validated, the Contractor shall
give a notice of Completion to the Employer through the Engineer. Such notice shall be deemed to be a request
by the Contractor to issue a Taking-Over Certificate in respect of the Works. The Engineer shall, within 21 days
of the date of delivery of such notice, either issue to the Contractor, a Taking-Over Certificate, stating the date on
which, in his opinion, the Works were completed in accordance with the Contract, or give instructions in writing
to the Contractor specifying all the work which in the Engineer's and Employer’s opinion, is required to be done
by the Contractor before the issue of such Certificate. The Engineer shall also notify the Contractor of any defects
in the Works affecting completion that may appear after such instructions and before completion of the Works
specified therein. The Contractor shall be entitled to receive such Taking-Over Certificate within 21 days of
completion, to the satisfaction of the Employer, of the Works so specified and remedying any defects so notified.
20.0 Taking-Over of Sections or Parts
20.1 Similarly, in accordance with the procedure set above, the Contractor may request and the Engineer shall issue a
Taking-Over Certificate in respect of :
(a) any Section in respect of which a separate Time for Completion is provided in the Appendix to Tender
(Annexure- XIV), or
(b) any part of the Permanent Works which has been both completed to the satisfaction of the Employer and,
otherwise than as provided for in the Contract, occupied or used by the Employer, or
(c) any part of the Permanent Works which the Employer has elected to occupy or use prior to completion
(where such prior occupation or use is not provided for in the Contract or has not been agreed by the
Contractor as a temporary measure).
20.2 Completion of Parts
If any part of the Permanent Works has been satisfactorily completed and has satisfactorily passed any Tests
on Completion prescribed by the Contract, and such part of the work is intended to be used by the Employer,
the engineer may issue a Taking-Over Certificate in respect of that part of the Permanent Works before
completion of the whole of the Works and , upon the issue of such Certificate, the Contractor shall be deemed
to have undertaken to complete with due expedition any outstanding work in that part of the permanent Works
during the Defects Liability Period.
21.0 Defects Liability Period
21.1 In these conditions the expression “Defects Liability Period” shall mean the defects liability period named in the
Appendix to Tender, calculated from:
(a) the date of completion of the Works certified by the Engineer in accordance with Clause 19.1
or
(b) in the event of more than one certificate having been issued by the Engineer under Clause 20.1 & 20.2, the
respective dates so certified.
21.2 The Defects Liability Period for the Works shall be extended by a period equal to the period during which the
Works cannot be used by reason of a defect or damage. If only part of the Works is affected the Defects Liability
Period shall be extended only for that part.In neither case shall the Defects Liability Period extend beyond 3 years
from the date of taking over.
22.0 Variations, Alteration and Omissions
22.1 The Employer shall make any variation of the form, or the Scope Works or any part thereof that may, in his
opinion, be necessary and for that purpose, or if for any other reason it shall, in his opinion, be appropriate, he
shall have the authority to instruct the Contractor to do and the Contractor shall do any of the following:
(a) change the character or quality or kind of any such work.
(b) change the levels, lines, position and dimensions of any part of the Works,
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(c) execute additional work of any kind necessary for the completion of the Works
(d) change any specified sequence or timing of construction of any part of the Works.
No such variation shall in any way vitiate or invalidate the Contract, but the effect, if any, of all such variations shall be valued in accordance with the provisions of this contract. Provided that where the issue of an instruction to vary the Works is necessitated by some default of or breach of contract by the contractor or for which he is responsible, any additional cost attributable to such default shall be borne by the contractor.
22.2 Instructions for Variations
The Contractor shall not make any such variation without an instruction of the Engineer/Employer. Provided that no instruction shall be required for increase or decrease in the quantity of any work where such increase or decrease is not the result of an instruction given under this Clause, but is the result of the quantities exceeding or being less than those stated in the Price bid ( BOQ) as per approved drawings issued for construction.
For all variations referred to in Clause 22.1, any additions to the Contract Price (for the purposes of this Clause
referred to as "varied works"), shall be valued at the rates and prices set out in the Contract if, in the opinion of
the Engineer, the same shall be applicable. If the contract does not contain any rates or prices applicable to the
varied work, the rates and prices in the Contract shall be used as the basis for valuation so far as may be
reasonable, failing which, after due consultation by the Engineer with the Contractor, suitable rates or prices
shall be agreed upon between the Engineer and the Contractor. In the event of disagreement the Engineer shall
fix such rates or prices as are, in his opinion, appropriate based on CPWD norms and shall notify the Contractor
accordingly. Until such time as rates or prices are agreed or fixed, the Engineer shall determine provisional rates
or prices to enable on-account payments to be included in Interim payment certificates. 22.3 Power of Engineer to Fix Rates
Provided that if the nature or amount of any varied work relative to the nature or amount of the whole of the Works or to any part thereof, is such that, in the opinion of the Engineer, the rate or price contained in the Contract for any item of the Works is, by reason of such varied work, rendered inappropriate or inapplicable, then after due consultation by the Engineer with the Contractor, a suitable rate or price shall be agreed upon between the Engineer and the Contractor. In the event of disagreement the Engineer shall fix such other rate or price as is, in his opinion, appropriate and shall notify the Contractor accordingly. Until such time as rates or prices are agreed or fixed, the Engineer shall determine provisional rates or prices to enable on-account payments to be included in Interim payment certificates.
The rates of such items shall be worked out on the basis of market rate analysis. In the event of disagreement between the Engineer and the Contractor on these rates, the Engineer shall fix such rates and prices as are in his opinion appropriate and shall notify the Contractor accordingly. Provided also that no varied work instructed to be done by the Engineer shall be valued under this Sub-Clause unless, within 14 days of the date of such instruction and, other than in the case of omitted work, before the commencement of the varied work, notice shall have been given either:
(a) by the Contractor to the Employer through the Engineer of his intention to claim extra payment or a varied
rate or price, or
(b) by the Employer through the Engineer to the Contractor of his intention to vary a rate or price. 22.4 Payment of Claims
The Contractor shall be entitled to have included in any interim payment certified by the Engineer such amount in respect of any claim as the Engineer, after due consultation with the Contractor, may consider due to the Contractor provided that the Contractor has supplied sufficient particulars to enable the Engineer to determine the amount due. If such particulars are insufficient particulars to substantiate the whole of the claim, the Contractor shall be entitled to payment in respect of such part of the claim as such particulars may substantiate to the satisfaction of the Engineer. The Engineer shall notify the Contractor for any determination made under this Sub-Clause.
23.0 Customs Duty and Clearance of Goods 23.1 The Employer will use his best endeavors in assisting the Contractor, where required, in obtaining clearance
through the Customs of Contractor's Equipment, materials and other things required for the Works. However, the responsibility for getting clearance from customs shall rest with the contractor. Further, THSTI is entitled to concession on payment of Customs Duty under notification No.51/96 dated 23.07.1996. We don’t issue any ‘Form C’ or ‘Form D’. However, being R&D Organization concessional customs duty forms can be issued. No other charges except those mentioned clearly in the bid will be admissible
21
Note : Since THSTI is entitled to concession on payment of custom duty under notification no. 51/96, the
bidders should keep this point in mind while submitting their bids. The responsibility to claim concession
on payment of custom duty towards import of items to be used for the works shall be that of the bidder.
THSTI will only issue concessional custom duty form as and when requested by the bidder.
24.0 Procurement of Various Materials
24.1 The Employer will not supply any construction materials required for the Works under this Contract. The
Contractor must, therefore, make his own arrangements for timely procurement of various materials including
steel and cement. Prior approval of each and every material including steel cement, aggregate, bricks etc or any
other fittings & fixtures to be taken from engineer before its procurement to site. However in case of excessive
delay in procurement of various materials, the Employer may also take decision of procurement of material
directly and the cost will be recovered from the contractor.
25.0 Water Supply & Power Supply
25.1 The Contractor shall make his own arrangement for water supply at Site for drinking as well as construction
purposes at his own cost. The Contractor shall also make his own arrangements for power supply at Site for
construction, testing & commissioning of all services and general use at his own cost. Non-availability of power
supply and/or water from whatever source shall not entail any additional claims or extension of Contract period in
this account. The contractor will provide water &electricity to the Engineer’s office free of cost for the required
quantity by the engineer’s site office.
26.0 Jurisdiction of Dispute
26.1 All dispute under this contract shall be subject to the jusrisdiction of Haryana high court. 27.0 Terms not expressly provided for
27.1 In case this tender document does not contain a provision or terms for dealing with a situation thay may arise
during the execution of the works, the relevant provisions contained in the CPWD manual or any other laws/rules shall be followed in such cases and the same will be binding on the Contractor.
Engineer (IEE)
22
PART – D
(SPECIFIC CONDITIONS OF CONTRACT)
23
SPECIFIC CONDITIONS OF CONTRACT
1.0 Certificates and payments
1.1 Advance Payment
THSTI will make an advance payment at a simple interest @ 10% (ten percent) per annum on reducing balance basis to the Contractor exclusively for the cost of mobilization in respect of the works for an amount equal to 5% (Five percent) of the contract price named in letter of award. Payment of such advance amount will be due under separate certification by the Engineer after (i) execution of the Form of Agreement by the parties hereto; ii) submission of the performance security by the Contractor; and iii) submission by the Contractor of an unconditional bank guarantee in the prescribed format prescribed at Annexure -XIII for amount equal to the advance payment and estimated interest thereof. Such bank guarantee shall remain valid till the advance amount and interest thereon is fully recovered from the contractor. The mobilization advance payment along with Interest shall be repaid through percentage deductions @ 20% from the interim payments certified by the Engineer. Deduction for Interest accrued during the period shall commence from first interim payment certificate. However deductions for Principal amount of mobilization advance and balance interest shall commence in the next Interim Payment Certificate until such time as the advance payment has been fully repaid, always provided that the advance payment shall be completely repaid prior to the time when 80 percent of the contract price has been certified for the payment.
1.2 Quarterly Statements
The Contractor shall submit a statement in 3 copies to the Engineer by 7th day following each completed quarter for the work executed during that quarter in a tabulated form approved by the Engineer, showing the amounts to which the Contractor considers himself to be entitled. The statement shall include the following items, as applicable, which shall be taken into account in the sequence listed:
(a) The estimated contract value of the Permanent Works executed up to the end of the quarter in
question, at base unit rates and prices.
(b) The actual value certified for payment for the Permanent Works executed up to the end of the
previous quarter, at base unit rates and prices.
(c) The estimated contract value at base unit rates and prices of the Permanent Works for the quarter
in question, obtained by deducting (b) from (a);
(d) The value of any variations executed up to the end of the quarter in question, less the amount
certified in the previous Interim Payment Certificate;
(e) Any amount to be withheld as retention money as per provisions of Sub-Clause 1.7, to the
amounts due under paragraphs (c), (d), and (h);
(f) Any amounts to be deducted as repayment of the Advance under the provisions of Sub-Clause 1.1;
and
(g) Any other sum, to which the Contractor may be entitled under the contract.
(h) 75% of the value of materials delivered and which will be consumed/installed/put to operation in the
next quarter at the site for permanent works on signing of the Indenture for secured advance format of which
is enclosed at Annexure - X.
(i) The amount to be deducted towards the advance income tax and the advance works contract tax as
per the statutory requirements in this regard.
1.3 Documents to be submitted along with Quarterly Statement
The contractor is required to submit following details/documents along with every quarterly
statement/running/final bill without which bills will not be processed.
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a) Bills of every section of work as provided in BOQ to be prepared separately and submitted all
together. In case there is no billable amount of any section of work, the same should be clearly
indicated zero value during the period of bill.
b) Complete measurement details along with location of each measurement should be clearly indicated. c) Authorised representative of contractor with name & seal to sign on each page of bill submitted. d) Carryover and brought forward for each & every quantity to be indicated in the bill.
e) The running bill should contain the measurement of items executed during the period of bill. Full
measurement may be given in pre final/ final bill. The measurement of all concealed items should be
made before covering them.
f) All the copy of challan of materials, bills and test certificates specially of the items on which secured
advance has been claimed, steel, cement, sand, aggregates, bricks, any plumbing material,
Aluminium, waterproofing material etc. should be submitted alongwith the every bill to the Engineer.
Actual measurement of secured advance to be submitted for verification of Engineer. Rate of secured
advance material to be verified by Engineer independently. Secured advance on approved make
material will only be payable.
g) Manufacturer Catalogue for aluminium and other items for verification of standard unit weight and
checking that material is as per specification should be submitted.
h) Weight slip of reinforcement steel and aluminium and any other material as required by Engineer
Representative from authenticated source like Dharam Kanta should be submitted.
i) The computerised soft copy of the entire bill shall be submitted alongwith the bill.
j) Correction as made by Engineer Representative should be incorporated by the contractor and
corrected copy in three copy should be submitted for payment. Date of submission of bill will be
reckoned from the date of submission of corrected bill.
k) Material consumption statement should be submitted alongwith every bill.
l) Bill should be indexed properly and each page and correction if any should be signed and stamped by
the authorised representative of the contractor and acceptance should be given.
m) Copy of challan of submission of PF & ESI and any other relevant as required from time to time
should be submitted.
n) Contractor shall maintain a check list at site duly marked on drawing for the items/works already
measured till previous bill should be submitted alongwith the bill.
o) Register for steel, cement, water proofing material, concealed item etc. should be maintained at site in
the standard format of CPWD duly modified by Engineer Representative as per requirement.
Quarterly statement should be submitted along with the bill.
p) Power of attorney of authorized person on behalf of contractor to be submitted. Contractor must
ensure that all papers /Measurement book to be signed by authorized person with measurement date,
date of start & date of completion etc.
q) All overwriting, alterations have been countersigned by the authorized person with date.
r) Approval of extra item if any conveyed to be enclosed. s) Contractor must ensure, in case of time extension, confirmation of extended validity of insurance,
performance BG upto Defect liability period as per contract and a copy of approved time extension to
be submitted.
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t) Contractor must authorise their representatives competent for verification of measurement at site and
these person should be available at site.
u) Contractor is required to submit all test certificates of items claimed in bill for payment or for secured
advance payment. Any item not meeting the test criteria’s will not be considered for payment.
v) All the pages and enclosures of bills to be stamped with name and designation of the person with full
signature of contractor’s and THSTI’s site incharge before submission to the engineer.
1.4 Certfication of Quarterly statement The said statement shall be approved / amended by the Engineer in such a way that, in his opinion, it reflects the amounts due to the Contractor in accordance with the Contract. Within the 7th day following each completed quarter for the work executed during that quarter, the Engineer shall determine the amounts due to the Contractor and shall issue to the Contractor a certificate herein called "Interim Payment Certificate", certifying the amounts due to the contractor. 1.5 Payment schedule The payment shall be made to contractor on quarterly basis as per the payment schedule given below:
Quarter Maximum Cumulative Payment Limit
( % of Contract Value)
Remarks
1 15
2 30
3 45
4 60
5 70
6 80 Completion of works and start of defect liability period
7 to 14 100 20 % of the contract values is reserved for the cumulative operation and maintenance during the defect liability period of two years. This amount shall be released in equal quarterly installment during the defect liability period.
The payment shall be released to the contractor as per the above payment schedule subject to satisfactory completion of work as per the work plan, submission of all quarterly statement along with all necessary documents and issue of Interim Payment Certifcate by the Engineer. The payment will be released after making necessary deductions as per the provisions of the tender document. Note : The quarterly payment to be released to the contractor shall be subject to the maximum cumulative payment limit or Interim payment certificate, which ever is lowest. 1.6 Place of Payments Payments to the Contractor shall be made by the THSTI in Indian Rupees into a bank account or accounts nominated by the Contractor or by Account Payee Cheque/Demand Draft. 1.7 Retention Money A retention amounting to 10 (Ten) percent of the amounts, determined in accordance with the procedure set out in Sub-Clause 1.2 (e) shall be made by the Engineer in the first and following Interim Payment Certificates, until the amount so retained reaches a limit of retention money (5% of Contract Price) as stated in the Appendix to Tender (Annexure - XIV). 1.8 Payment of Retention Money Retention money shall be released to the contractor upon successful completion of all the terms and conditions of the contract including the Defect Liability Period of two years by the contractor.
1.9 Time of Payment The amount due to the Contractor under any Interim Payment Certificate issued by the Engineer pursuant to this Clause, or to any other term of the Contract, shall, be paid by the Employer to the Contractor within 15 days after the Contractor's quarterly statement has been submitted to the Engineer for certification or, in the case of theFinal Certificate, within 30 days after the agreed Final Statement and written discharge have been submitted to the Engineer for certification.
1.10 Correction of Certificates
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The Engineer may by any Interim Payment Certificate make any correction or modification in any previous Interim payment Certificate which has been issued by him, and shall have authority, if any work is not being carried out to his satisfaction, to omit or reduce the value of such work in any Interim Payment Certificate.
1.11 Statement of Completion Not later than 84 days after the issue of the Taking-Over Certificate in respect of the whole of the Works, the Contractor shall submit to the Engineer a Statement of Completion with supporting documents showing in detail, in the form approved by the Engineer.
(a) the final value of all work done in accordance with the Contract up to the date stated in such Taking-
Over Certificate;
(b) any further sums which the Contractor considers to be due; and
(c) an estimate of amounts which the Contractor considers will become due to him under the Contract.
Estimated amounts shall be shown separately in such Statement at Completion. The Engineer shall certify payment in
accordance with Sub-Clause 1.2 to 1.4 as stated above. 1.12 Final Statement Not later than 56 days after the issue of the Defects Liability Certificate, the Contractor shall submit to the Engineer for consideration a draft final statement with supporting documents showing in detail, in the form approved by the Engineer.
(a) the value of all work done in accordance with the Contract; and
(b) any further sums which the Contractor considers to be due to him under the Contract. If the Engineer disagrees with or cannot verify any part of the draft final statement, the Contractor shall submit such further information as the Engineer may reasonably require and shall make such changes in the draft as may be agreed between them. The Contractor shall then prepare and submit to the Engineer the final statement as agreed (for the purposes of these Conditions referred to as the "Final Statement").If, following discussions between the Engineer and the Contractor and any changes to the draft final statement which may be agreed between them, it becomes evident that a dispute exists, the engineer shall issue an Interim Payment Certificate for those parts of the draft final statement which are not in dispute. The dispute shall then be settled in accordance with the terms of the tender document, if avialable or CPWD norms as applicable. The Final Statement shall be agreed upon settlement of the dispute. 1.13 Discharge Upon submission of the Final Statement, the Contractor shall give to the Employer, with a copy to the Engineer, a written discharge confirming that the total of the Final Statement represents full and final settlement of all monies due to the Contractor arising out of or in respect of the contract. Provided that such discharge shall become effective only after payment due under the Final Certificate has been made and the performance security referred has been returned to the Contractor. 1.14 Final Certificate Within 28 days after receipt of the Final Statement, and the written discharge, the Engineer shall issue to the employer (with a copy to the Contractor) a Final Certificate stating:
(a) the amount which, in the opinion of the Engineer, is finally due under the Contract, and
(b) after giving credit to the Employer for all amounts previously paid by the Employer and for all sums
to which the Employer is entitled under the Contract, the balance, if any, due from the Employer to
the Contractor or from the Contractor to the Employer as the case may be.
1.15 Cessation of Employer's Liability The Employer shall not be liable to the Contractor for any matter or thing arising out of or in connection with the Contract or execution of the Works, unless the Contractor shall have included a claim in respect thereof in his Final Statement and (except in respect of matters of things arising after the issue of the Taking-Over Certificate in respect of the whole of the Works) in the Statement at Completion referred above.
1.16 Defects Liability Certificate The Contract shall not be considered as completed until a Defects Liability Certificate shall have been signed by the Engineer and delivered to the Employer, with a copy to the Contractor, stating the date on which the
27
Contractor shall have completed his obligations to execute and complete Works and remedy any defects therein to the Engineer's satisfaction. The Defects Liability Certificate shall be given by the Engineer within 28 days after the expiration of the Defects Liability Period, or, if different defects liability periods shall become applicable to different sections or part of the Permanent Works, the expiration of the latest such period, or as soon thereafter as any works instructed their under, have been completed to the satisfaction of the Employer.
1.17 Unfulfilled Obligations Notwithstanding the issue of the Defects Liability Certificate the Contractor and the Employer shall remain liable for the fulfilment of any obligation incurred under the provisions of the Contract prior to the issue of the Defects Liability Certificate which remains unperformed at the time such Defects Liability Certificate is issued and, for the purpose of determining the nature and extent of any such obligation, the Contract shall be deemed to remain in force between the parties to the Contract.
2.0 Variation in Price
No Variation shall be payable in price on account of labour, material or on any other account. Also no
variation/escalation shall be payable on account of time over run if any in completion.
3.0 Taxation
The Contractor shall pay all taxes, duties, levies, work contract tax etc. of the Government provisions of the Income tax
Act or as per the advice of the Income Tax Authority. Deduction of Income tax/ Works Contract tax/ other taxes shall
be made from each certificate of payment as per the relevant provisions of the Income tax Act or as per the advice of
the Income tax Authority/ other Competent Authority. Any applicable tax exemption certificates provided to THSTI
would be provided to the contractor for respective material cluster according to the rules and regulations stated by Govt.
of India / local state Govt. authority.
4.0 Architect for the civil works of the project
M/s Suresh Goel and Associates are the architects for the NCR Biotech Science Cluster. In order to harmonize the BSL-
3 building and associated services with the rest of the campus it is mandatory that the contractor (final awardee) works
with the same architect firm for all civil construction related work, the payments for which shall be directly made by
THSTI to the architect. The finalized drawing for the facility shall be obtained from the said architect for execution of
civil work. The architect shall have the responsibility to ensure that the civil construction is in line with the other
buildings of NCR-BSC. However, the contractor shall be fully liable for the correctness of the drawing provided by the
architect.
5.0 Compliance of Statutory Obligations for obtaining completion Certificates:
The Contractor shall comply all the statutory obligations and obtain all required clearances to implement the project
without any financial repercussions to Employer and ensure all follow up actions with the local authorities in this
respect for smooth completion of the project. All statutory charges to get any NOC, clearances from local authorities to
be obtained by the contractor and the charges towards the NOC shall be reimbursed after submitting the
bills/documentary evidences along with RA bills/final bill. The contractor is required to obtain all NOC, completion &
Occupancy certificates from respective local bodies, if any as under:
i) Pollution control Board, ii) Environment clearances, iii) NOC form fire department, iv) Lift licence, v) Chief
Electrical Inspector CEA, vi) Municipal authority vii) Airport Authority, viii) Tree cutting, ix) Explosive
department, x) concerned authority for water and sewer connection, xi) And any other statutory requirement to
occupy the building and run the services in all respect. Contractor shall organise all inspections of concerned
authorities & obtain the NOC’s within the time for completion.
The contractor is required to submit the relevant drawings like completion / as built Drawings and any other
statutory documentary requirements of local bodies in copies as per requirement to obtain the above etc. at their
own cost.
6.0 Guarantee and Defects Liability Period
The entire BSL-3 Laboratory works including all the equipments, systems, services and components as a whole shall be
guaranteed for its performance and against any manufacturing defects up to the expiry of Defect Liability Period. The
defects liability period shall be valid for a period of 2 (Two) Years from the date of Completion of works and taking
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over of the works by the employer. The contractor shall guarantee that all the works, equipments, systems, services and
components shall be free from any defect due to defective materials and bad workmanship or any other cause and that
the equipments and systems shall work satisfactorily and the performance and efficiencies of the equipments and
systems shall not be less than the approved values. Any part found defective during the defects liability period shall be
repaired /replaced by the contractor at his own expense. The services of the contractors personnel during this period for
such work shall be assumed to be included in the contract value. If the defects are not remedied within a reasonable
time mentioned in the written notice, the Employer may proceed to do so at the contractors risk and expenses without
prejudice to any other rights. Joint inspection reports shall also be deemed as written notice for this purpose.
Signature and seal of the Authorized Signatory of the bidder
34
ANNEXURE - VI
FINANCIAL CAPABILITIES
Financial Year Annual Turn Over in Indian Rupees ( or equivalent to Indian
Rupees ) as per Audited Balance Sheet
2010-2011 Rs.
2011-2012 Rs.
2012-2013 Rs.
Average Annual Turnover over
the past three years
Rs.
Financial Information in
Rs. Equivalent
For year
2008-
2009
For year
2009-2010
For year
2010-
2011
For year
2011-12
For year
2012-13
1. Total Assets
2. Current Assets
3. Total Liabilities
4. Current Liabilities
5. Profit before Tax
6. Profit after Tax
7. Net Worth
NOTE : The above data is to be supported by audited balance sheets
1. Attach copies of audited balance sheets duly certified by the chartered accountant for all three
years (2010-11, 2011-12&2012-13). Audited Balance sheet should mention the membership
number of chartered accountant issued by ICAI along with full address.
2. Attach recent solvency certificate from bankers. The certificate should be not more than one
year old from the date of submission of bid.
Signature and seal of the Authorized Signatory of the bidder
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ANNEXURE – VII
EXPERIENCE OF COMPLETION OF PROJECTS OF SIMILAR NATURE & COMPLEXITY
(During last seven years ending last day of month previous to the one in which applications are invited)
Sl.
No.
Name
of
work /
project
and
location
Owner or
sponsoring
organization
Cost of
work in
Lakhs
Date of
commencement
as per contract
Stipulated
date of
completion
Actual
date
of
completion
Name and
address/
telephone
number of
officer to
whom
reference
may be
made
Remarks
NOTE : Please attach supporting documents (completion certificates along with order copies) for the above
information
Signature and seal of the Authorized Signatory of the bidder
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ANNEXURE - VIII
LITIGATION DETAILS (COURT CASES/ARBITRATION)
Year Name of
the work
Name of
the Client,
with
Address
Title of the
court
Case/Arbitration
Detail of
the
Court/
Arbitrator
Status
Pending/
Decided
Disputed Amount
(Current Value,
the equivalent) in
case of Court
Cases/arbitration
Actual Awarded
Amount (Rs) in
decided Court
Cases/arbitration
Signature and seal of Authorized Signatory of bidder
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S.No Criteria Requirements Page no. at
which required
information is
available (To
be mentioned)
Indicate
Eligibilit
y
Y / N
1 Average Turnover for last
three years
Copies of audited balance sheets certified by the chartered
accountant along with Membership no for all three years
(2010-11, 2011-2012 & 2012-13).
2 Experience Experience of having successfully completed similar work
during last seven years.
3 Experience A Certificate from client for completion of work(s) against
single work order must be submitted along with application
4 Personnel Capabilities
List of suitable qualified and experienced personnel in relevant
field
5 Equipment Capabilities
List of equipment required and proposed to be deployed &
source of such equipments
6 Financial Capability Net worth positive for all the five years Profit earning for all the five years
7 Solvency Certificate Solvency certificate from applicant’s bank for minimum Rs. 4.35 crore. The certificate should not be more than one year old.
8. Abandoning /
Blacklisting
Information regarding not abandoned /Black listing for any work
of Union Govt./State Govt./ PSU’s etc. during last 5
years and
The applicant should provide information regarding litigation/
Arbitration cases for the last five years as per ANNEXURE-VIII
9. Tender document fee, in case down loaded from web site
Rs. 1500/- in form of DD/Banker’s Cheque in favour of THSTI payable at Gurgaon
10 Bid Security In terms of DD 11 Tender Documents All volumes of tender documents submitted in the respective
envelopes as specified in NIT including amendments, if an y
ANNEXURE-IX
Check List
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ANNEXURE - X
PROFORMA OF INDENTURE FOR SECURED ADVANCE OR CREDIT
THIS INDENTURE made this day of -------------------------------------- between M/s. -------------------------------------------- (hereinafter called the Contractor) which expression shall where the Context as admits or implies be deemed to include his executors/ administrators and assigns of the one part and THSTI (hereinafter called the Employer) which expression shall where the context so admits or implies be deemed to include its successors and assigns of the other part. Whereas by an agreement dated----------------(hereinafter called the said agreement) the Contractor has agreed to construct------------- ( the works or the said works). And whereas the Contractor has applied to the Employer that he may be or be given credit for materials brought by him to the site of the works subject to the said agreement for use in construction of the works. NOW THIS INDENTURE WITNESSETH that in pursuance of the said agreement and in consideration of the sum of Rs.------------------- paid to the Contractor by The Employer. The receipt where the Contractor hereby acknowledges and of such advance or credited (if any) as may be made to him as aforesaid the Contractor hereby covenants and agrees with The Employer and declares as follows :- 1. That all sums given as advance or credit by The Employer to the Contractor as aforesaid shall be employed by the Contractor in or towards the execution of the said works and for no other purpose whatsoever. 2. That the materials for which the advance or credit is given are offered to and accepted by The Employer as security and are absolutely the Contractor's own property and free from encumbrances of any kind and the Contractor will not make any application for or receive further advance or credit on the security of materials which are not absolutely his own property and free from encumbrances of any kind and the Contractor shall indemnify The Employer against any claims to any materials in respect of which advance or credit has been made to him as aforesaid. 3. That the said materials and all other materials on the security of which any further advance or advances or credit may be given as aforesaid (hereinafter called the said materials) shall be used by the Contractor solely in the execution of the said works in accordance with the directions of The Employer and in terms of said agreement.
4. That the Contractor shall make at his own cost all necessary and adequate arrangements for
the proper safe custody and protection against all risks of the said materials and that until used in
the construction as aforesaid the materials shall remain at the site of the said works in Contractor's
custody and on his own responsibility and shall at all times be open to inspection by The Employer. In the
event of the materials or any part thereof being stolen, destroyed or damaged or becoming deteriorated in
greater degree than in due to reasonable use and wear thereof the Contractor will replace the same with
other materials of like quality or repair and make good the same as required by The Employer.
5. That the said materials shall not on any account be removed from the site of the work except with the
written permission of The Employer.
6. That the advance shall be repayable in full when or before Contractor receives payments from The
Employer of the price payable to him for the said works under the terms and provisions of the said
agreements. Provided that if any intermediate payments are made to the Contractor on account of work
done then on the occasion of each payment The Employer will be at liberty to make a recovery from the
Contractor's bill for such payments by deducting there from the value of the said materials than actually
used in the contraction and in respect of which recovery has not been made previously. The value for
this purpose being determined in respect of each description of materials at the rates at which the amounts
of the advance as made under these presents were calculated.
39
7. That if the Contractor shall at any time make any default in the performance of observance
in respect of any of the terms and provisions of the said agreement or of those provisions the
total amount of the advance or advances that may still be owing to The Employer, shall immediately
on the happening of such default be repayable by the Contractor to The Employer together with
interest thereon at 18% per annum from the date or respective dates of such advance or advances to the
date of payment and with all costs. Damages and expenses incurred by The Employer in or for the
recovery hereof or the enforcement of the security or otherwise by reasons of default of the Contractor
and the Contractor hereby covenants and agrees with The Employer repay and pay the same respective
to him accordingly.
8. That the Contractor hereby charges all the said materials with the repayment to The Employer
of all sums advances or credit as aforesaid and all costs. Charges, damages and expenses payable under
these presents PROVIDED ALWAYS it is hereby agreed and declared that notwithstanding anything in
the said agreement and without prejudice to the powers contained therein if and whenever the covenant
for payment and repayment herein before contained shall become enforceable and the money owing shall
not be paid in accordance therewith.The Employer may at any time thereafter adopt all or any of the following
courses as he may deem best :
a. Seize and utilise the said materials or any part thereof in the completion of the said works in
accordance with the provisions in that behalf contained in the said agreement debiting the Contractor with
the actual cost of effecting such completion and the amount due in respect of advance or credit under
these presents and crediting the Contractor with the value of work done as if he has carried it out in
accordance with the said agreement and the rates thereby provided if the balance is against the Contractor
is to pay the same to The Employer on demand.
b. Remove and sell by public auction the seized materials or any part thereof and out of the money
arising from the sale repay The Employer under these presents and pay over the surplus (if any) to the
Contractor.
c. Deduct all or any part of the moneys owing from any sums due to the Contractor under said
agreement.
9. Except in the event of such default on the part of Contractor as aforesaid, interest or the said
advance shall not be payable.
10. That in the event of conflict between the provisions of these presents and the said agreements, the
provisions of these presents shall prevail and in the event of any dispute or difference arising over
the construction or effect of these presents, the settlement of which has not been hereinbefore expressly
provided for the same shall so far as is lawful be referred to Executive Director, Translational Heath
Science and Technology Institute or to such person as he may appoint whose decision shall be final and
the provisions of the Indian Arbitration Act for the time being in force shall apply to such reference.
IN WITNESS whereof the said The Employer and the Contractor hereunto set their respective hands and seals the day and year first above written. Signed sealed and delivered by Contractor The Employer
40
ANNEXURE - XI
FORM OF AGREEMENT
This Agreement made the ___________ day of ____________ 2014_________________________between
Translational Health Science and Technology Institute (THSTI), Gurgaon- Haryana for the Design, Construction,
testing, commissioning and, validation of Bio-safety level 3 (BSL-3)Laboratory & associated works on “Turnkey
Basis” and its Comprehensive Operation during the defect liability period of 2 years at NCR Biotech Science Cluster
(NCR-BSC), Faridabad, Haryana (hereinafter called "The Employer" ) who enters into this Agreement of the one part
and M/s............................................................................................................................................... ................................
(hereinafter called "The Contractor") of the other part.
Whereas the Employer is desirous that certain works should be executed by the Contractor, viz
_______________________ ("the Works") and has accepted a Bid by the Contractor for the execution and completion
of the works and the remedying of any defects therein.
Now this Agreement witnessed as follows:
1. In this Agreement words and expressions shall have the same meanings as are respectively assigned to them in
the Conditions of Contract hereinafter referred to.
2. The following documents shall be deemed to form and be read and construed as part of this Agreement, viz :
(a) The Letter of Award;
(b) The said Bid;
(c) The General Conditions of Contract;
(d) Prequalification document
(e) Instructions to Tenderers and Specific Conditions of Contract;
(f) The Specification;
(g) The Drawings;
(h) The Priced Bill of Quantities;
(i) Any other relevant documents referred to in this Agreement or in the aforementioned documents
3. In consideration of the payments to be made by the Employer to the Contractor as hereinafter mentioned, the
Contractor hereby covenants with the Employer to execute and complete the Works and remedy any defects therein in
conformity in all respects with the provisions of the Contract.
4. The Employer hereby covenants to pay the Contractor in consideration of the execution and completion of the
Works and the remedying of defects therein the Contract Price or only such other sums as may become payable under
the provisions of the Contract at the times and in the manner prescribed by the Contract.
In Witness whereof the parties hereto have caused this Agreement to be executed the day and year first before written.
PROFORMA FOR ADVANCE BANK GUARANTEE (On a stamp paper of appropriate value from any Nationalised Bank or Scheduled Bank)
To Executive Director
Translational Health Science and Technology Institute (THSTI), Plot No. 496, Udyog Vihar, Phase-III, Gurgaon - 122016.
Dear Sir, 1. In consideration of the ………………………………………………………………………………………….
(hereinafter called as THSTI) having agreed under the terms & conditions of Contract No.________________ dated_________ (hereinafter called the Contract or the said Contract) to make at the request of ("the Contractor" or "the said Contractor") the Contractor thereunder a lumpsum advance of Rs._____________for utilising it for the purposes of the said Contract on its furnishing a guarantee acceptable to THSTI.
2. We, the______________________Bank having its branch office at _________________
________________________ (hereinafter referred to as the Bank or the said Bank) a Company under the Companies Act 1956 and having our registered office at_______________________do hereby guarantee the repayment and recovery of the said advance together with interest thereon as provided according to the terms and conditions of the said Contract. If the Contractor fails to utilise the said advance for the purposes of the said Contract and/or the said advance together with interest thereon as aforesaid is not fully recovered by THSTI, we_______________________ Bank hereby unconditionally and irrevocably undertake to pay to THSTI on demand and without demur or protest to the extent of the said sum of Rs._______________with interest any claim made by the THSTI on us against non-utilisation/misutilisation of the said advance and/or by reason of THSTI not being able to recover in full the said sum of Rs.________________ with interest as aforesaid.
3. We,________________________Bank further agree that THSTI shall be the sole judge of and as to whether
the Contractor has utilised or not utilised the said advance or any part thereof for the purposes of the said Contract and/or as to whether the advance or any part thereof with interest has been recovered or not and the finding of the Consultant in this regard shall be final and binding on us.
4. We, the said Bank further agree that the Guarantee herein contained shall remain in full force and effect during
the period that would be taken for the performance of the said Contract and till the said advance has been fully recovered and its claims satisfied or discharged and till
THSTI certifies that the said advance with interest has been fully recovered from the Contractor. 5. THSTI shall have the fullest liberty without affecting in any way the liability of the said Bank under this
guarantee or Indemnity from time to time to vary any of the terms and conditions of the said Contract or the advance or to extend time of performance by the Contractor or to postpone for any time and from time to time any of the powers exercisable by it against the said Contractor and either to enforce or forbear from enforcing any of the terms and conditions governing the said Contract or the advance or securities available to THSTI and the said Bank shall not be released from its liability under these presents by any exercise by THSTI of the liberty with reference to the matter aforesaid or by reason of time being given to the said Contractor/or any other forbearance, act or omission on the part of THSTI or any indulgence by THSTI to the said Contractor or of any other matter or thing whatsoever which under the law relating to sureties would but for this provision have the effect of so releasing the said Bank from its said liability.
6. The Bank hereby waives all rights at any time inconsistent with the terms of this Guarantee and the obligations
of the Bank in terms hereof shall not be in any way affected or suspended by reason of any dispute or disputes having been raised by the Contractor (whether or not pending before any arbitrator, Tribunal or court) or any denial or liability by the Contractor stopping or preventing or purporting to stop or prevent any payment by the Bank to THSTI in terms thereof.
7. The amount stated in any notice of demand addressed by THSTI to the Bank as liable to be paid to THSTI by
the Contractor, shall be conclusive evidence of the amount so liable to be paid to THSTI by the Bank. 8. This guarantee/undertaking shall be in addition to any other guarantee or Security whatsoever that THSTI may
now or any time may have in relation to the Contractor's obligations or liabilities under and/or in connection with the said Contract, and THSTI shall have full authority to have recourse to or enforce this Security in preference to any other guarantee or Security which THSTI may have or obtain and no forbearance on the part
44
of THSTI in enforcing or requiring enforcement of any other Security shall have the effect of releasing the Bank from its full liability hereunder.
9. It shall not be necessary for THSTI to proceed against the said Contractor before proceeding against the Bank
and the guarantee herein contained shall be enforceable against the Bank notwithstanding that any Security which THSTI may have obtained or obtain from the Contractor shall at the time when proceedings are taken against the said Bank hereunder be outstanding or unrealised.
9 We, ______________________the said Bank undertake that we shall pay forthwith the amount stated in the
notice of demand notwithstanding any dispute/difference pending between the parties before the arbitrator and/or that any dispute is being referred to arbitration.
10 We, the said Bank undertake not to revoke this guarantee during its currency except with the consent of THSTI
in writing and agree that any change in the Constitution of the said Contractor or the said Bank shall not discharge our liability hereunder.
11 This guarantee/undertaking shall be a continuing guarantee/undertaking and shall remain valid and irrevocable
for all claims of THSTI and liabilities of the Contractor arising upto and until midnight of_______________________________________.
12 Not withstanding anything contained herein above, our liability under this guarantee shall
be restricted to Rs. ______________ alongwith interest due thereon (Rs.______________) with interest and this guarantee shall remain in full force till___________________ and unless a claim is made on us within 3 months from the date i.e. before___________________________all the claims under this guarantee shall be forfeited and we shall be relieved of and discharged from our liabilities hereunder.
Dated__________________day of________________20______ for and on behalf of Bank Issued under seal:
45
ANNEXURE – XIV
APPENDIX TO TENDER
Important Clause
Part No.
Clause No.
Remarks
Amount of performance
security B
12.1
5%of the contract Price
Mobilisation Advance D 1.1 5% of Contract Price
Amount of Liquidated damages C
18.1 1/2 % (half%) of contract
price per week of delay
Maximum Limit of liquidated
damages C
18.1 5% of contract price
Defect Liability Period C
21.1 24 months form the date
of issue of ‘Taking Over
Certificate’
Maximum limit of retention
money D
1.7 5% of the comtract price
Time of Completion C 17.1 18 (Eighteen) Calendar
months from Employer
order to commence the
works
Engineer IEE
46
PART –E
(TECHNICAL SPECIFICATION)
47
RESPONSIBILITY CHART FOR THE PROPOSED BSL-3 FACILITY CONSTRUCTION
S No SCOPE DEFINITATION CONTRACTOR THSTI
1 BSL 3 LAB AND PROCESS LAYOUT √
2 REVIEW OF PROCESS LAYOUT & ANY VALUE ADDITION PROPOSED BY CONTRACTOR
√
3 REVIEW OF PROCESS MODIFIED LAYOUT √
4 DETAIL ENGINEERING, HEATLOAD & AIR-FLOW DIAGRAM
√
5 FACILITY LAYOUT & DETAIL ENGINEERING DRGS. √
6 CIVIL AND ARCHITECTURAL LAYOUT DETAILING √
7 CIVIL & BUILDING STRUCTIRAL WORK √
8 STORAGE SPACE AT SITE √
9 HVAC, ELECTRICAL & BMS DETAIL DRAWING √
10 INTERIORS & CLEAN ROOM √
11 HVAC SYSTEM INCLUDING HIGH SIDE √
12 ELECTRICAL SYSTEM DISTRIBUTION SYSTEM √
13 FIRE DETECTION, FIRE ALARM SYSTEM √
14 ACCESS CONTROL SYSTEM √
15 ALL UTILITIES INCLUDING UPS, DG √
16 UTILITY DISTRIBUTION PIPING SYSTEM & DRAIN √
17 BSL 3 LAB FURNITURES √
18 CLEANROOM PROTOCOL √
19 BIO SAFETY CABINET, IVC s, PASS BOXES AND AUTOCLAVE
√
20 SUPPLY OF 3 PHASE POWER TO MCC PANEL √
21 SUPPLY & DRAINAGE OF WATER TO/FROM FACILITY √
22 COMMISSIONING & TESTING OF FACILITY √
23 VALIDATION, CLEARANCE FROM STATUTORY AUTHORITIES.
√ √
24 COMPLETE DOCUMENTATION √ √
48
BASIS OF DESIGN
Station Name - Faridabad (Haryana)
Latitude - 22.4211
Longitude - 77.3178
Elevation - 214 M
Out side Conditions Summer : Dry bulb temperature 42.8C/109.04F
Wet Bulb Temperature 28.3C/82.94F
Monsoon : Dry bulb temperature 35.2C/95.36F
Wet Bulb Temperature 31.3C/88.34F
Winter : Dry bulb temperature 7.3C/45.14F
Wet Bulb Temperature 6.8C/44.24F
F. Inside Design Conditions :
Refer enclosed “ROOM DATA SHEET”
Additional Requirements:
Ventilation : 10 cfm per person
Lighting Load : 2w/ft2 in all areas ,3w/ft2 in OTs
Toilets/Labs - 10 air changes per hour
Kitchen -10 air changes per hour
Dirty utility Room - 10 air changes per hour
Based on the area wise detailed heat loads of the above design data and the details the
3. Procedure & Change area : Specific entry to controlled BSL 3 lab area ZONING :
From the isolation point of view, the building area will be segregated into the following zones.
Sensitive areas BSL 3 lab units, Animal Holding & experimental area etc.
Non-BSL 3 lab, general administration & academic areas
The individual requirements of the above will be considered for designing the system
B. ROOM DATA SHEET:
The system design, basis of design, requirements and other relevant data are outlined in
this section. The detailed specifications and specific requirements are outlined in the
subsequent sections.
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C. Location:
The proposed BSL & ABSL 3 lab set up is coming up at “Health Biotech Science Cluster” in
Faridabad, Haryana
D. Scope of works :
Following works will be carried out as civil / structural / Electrical / Interior clean room /
HVAC system and Building automation works and other associated required for setting
up new BSL 3 laboratory facility:
All civil work for New building, including earth excavation, RCC, brickwork, internal & external cement plaster, internal brick partitions, metallic panel wall for internal walls in classified areas only. It includes C.C. flooring, cement coving wherever required.
Building shall be designed for 2 storied building.
Chillers shall be placed at GF technical area and on RCC roof and Cooling tower at ground level. Rest all HVAC equipment shall be placed on in dedicated technical plant room at G.F.
AHUs shall be installed on suitable civil-structural platform.
This is a design-built, turnkey project that includes designing, engineering, construction,
maintenance and operation (till 24 months from date of successful handing over of the
BSL3 facility at the Health Biotech Science Cluster at Faridabad).
Facility design will include civil works for the construction of building shell and internal
partitioning using double skin PUF in filled sandwich panels and all allied works
necessary for completion, commissioning and comprehensive maintenance (for an initial
period of 2 years) of electrical, HVAC, BMS and air filtration system for maintaining
desired negative pressure gradients, point wirings, gas piping connections, IBMS, fire
detection system, access control system, communication system for intercoms and data,
CCTV system, and appropriate UPS for critical operations.
A 2-story building to house the BSL3 labs is proposed. The first floor will have the two
BSL3 labs of ~150 sq. mt. each and the ground floor will have the respective technical;
area including plant room areas.
M/s Suresh Goel and Associates (http://sgadesignlab.com) are the architects for the
campus and the vendor is required to get the architectural and structural design/details
for the civil construction part of the project from them to ensure that this facility is in
harmony with the rest of the campus. The architect fee shall be paid by THSTI directly to
M/s Suresh Goel and Associates. However, it is solely the vendor’s responsibility to
commission and provide maintenance to the project and get appropriate regulatory
clearances.
51
To execute all incidental work at site including material supply at site associated with the
system asked in the specifications.
Nature of such works will be Modular clean room, HVAC High Side / Low Side, Sheet
metal ductwork, Air distribution devices viz. Grilles and Diffusers , CHW M.S Piping with
insulation, copper refrigerant piping and its insulation , drain piping etc., incidental civil
works, incidental electrical works ,cable , control panel etc. at site for all manufactured
items at works and also items fabricated at site.
Routine Testing, pressure testing of fabricated components, commissioning, testing and
validation of complete BSL 3 lab facility at site.
The BSL 3 Lab will be tested in “As-Built” Condition for the following parameters:
Room Negative Pressure
Room Temperature & RH
Air Changes Rate
Exhaust HEPA Installation leak- DOP
Particulate count
Room Illumination
Door Interlock Verification
BMS Interlocks / Alarm
1. Interlock of Supply AHU with Exhaust Blower
2. Verification of alarm for malfunctioning of AU, Exhaust fan
Electrical parameter for various motors (Volt and amp)
Fire safety and security system check with interlock operation
52
BSL 3 LAB PERFORMANCE TESTING
1. BSL3 LAB TEST PROTOCOL:
Protocols to be followed:
a) The BSL3 lab room is closed for entry to other persons except for the testing personnel (2 persons from customer and 2 from M+W Zander).
b) The BSL3 lab protocols have to be followed which includes that all personnel should have over-coats, caps and shoe covers.
c) Un-interrupted electrical power is available for the entire duration of testing. d) Responsible persons are available from client/ user to witness the testing. e) Arrangements for overstaying of the personnel for carrying out the testing must be ensured
prior to testing. f) Smoking/ Tea/ Coffee/ Eating/ functions are strictly prohibited in the lab. g) System (including Chiller, AHU etc) shall be working continuously for 5-7 days prior to testing
and entry to lab shall be restricted during that period. Regular cleaning / wet moping to be done inside cleanroom during this period.
2. TESTING PROCEDURES: The BSL3 Lab will be tested in “As Built” Condition for the following parameters:
Room Negative Pressure
Room Temperature & RH
Air Changes Rate
Exhaust HEPA Installation leak
Particulate count
Room Illumination
Door Interlock Verification
BMS Interlocks / Alarm
3. Interlock of Supply AHU with Exhaust Blower
4. Verification of alarm for malfunctioning of AU, Exhaust fan
Electrical parameter for various motors (Volt and amp)
2.1 Room Negative Pressure Test:
2.1.1 General Guide Lines for the Test: The purpose of this test is to verify the capability of the BSL3 Lab to maintain the specified
negative pressure in the BSL3 room. The Pressure cascades are to be maintained between the
53
rooms to avoid cross contamination. This test should be performed after the facility has met the
acceptance criteria for airflow quantity and air balancing for each room.
2.1.2 Instrument: DP sensors readings from BMS terminal.
2.1.3 Test Procedure: Keep the doors closed. Pressure readings are taken at different locations at 2 Hour interval in each room Measure and record the pressure differential between the room and the atmosphere.
2.1.4 Report: Tabulated sheet of the Negative Pressure readings
2.1.5 Acceptance: The test is considered acceptable if, the room negative pressure readings measured are within
design limits.
2.2 TEMPERATURE AND HUMIDITY TEST: The purpose of this test is to determine the capability of the system to control Temperature &
RH uniformity as per specification.
2.2.1 Instrument: Sling Psychrometer.
2.2.2 Test Procedure: This test is performed after the airflow test has been completed. Temperature readings (DBT and WBT) are taken at different locations at 2 Hour interval in
each room. Relative Humidity (RH) is noted from table and recorded.
2.2.3 Reporting: The readings of Temperature & Humidity are to be recorded in the specified format for every 2
hr.
2.2.4 Acceptance: The test is considered acceptable if, Temperature variation is within the range specified (23
±2ºC). Relative humidity not crossing the specified limits (55 ±5%).
AIR CHANGES TEST:
2.3.1 General Guide Lines For The Test: The test is performed to determine the supply air quantity across the SA Diffusers & air change
rate in the room. Measurement to be taken for all SA Diffusers.
2.3.2 Instrument: Vane type anemometer.
54
2.3.3 Test Procedure: The anemometer fan has to be placed at outlet of diffuser Few seconds are required to allow the fan speed to stabilize, register the values. For each SA Diffuser, readings to be taken at 5 points The measurement to be done for all SA diffusers.
2.3.4 Reporting: The report will be presented as follows:
Tabulated sheet of the result.
2.3.5 Acceptance: The test is considered acceptable if, total supply air quantity is not less than the design value of air
2.4.1 General Guide Lines For The Test: The test is performed to verify the proper installation of the HEPA filters in Exhaust HEPA
housing. This test is not required for supply air HEPA in plenum.
2.4.2 Instrument: Portable DOP Generator, Blower, Photometer, suitable length of 100 mm dia tubing/ canvas.
2.4.3 Test Procedure: Openings are available at inlet and outlet of exhaust HEPA housing. Generate aerosol particles in upstream of the HEPA filters with help of DOP generator. Switch ON the photometer. Keep the photometer probe on downstream of exhaust HEPA filters. Run the photometer probe through out the filter on down stream side of filter. Check the integrity of the HEPA filters by noting down the leakage rates.
2.4.4 Report: The report will be presented as follows:
Tabulated sheet of the results. 2.4.5 Acceptance:
Detection by abrupt change in particulate count around HEPA filters edge. Acceptable, if the
penetration leakage rate through the filter (HEPA) is ≤0.01% down to 0.3µ.
2.4 Particle Count Test:
2.5.1 General Test Conditions:
Test has to be performed to verify the Air Cleaning degree after having passed through the
absolute filters in order to be assigned to the proper class level. Testing shall be done at each
Supply Air Diffusers for classified areas.
2.5.2 Instrument:
55
Optical particle counter (Laser diode based) having a particle size discrimination capability to
detect particles of 0.5 µμ and larger. The sample flow rate of instrument is optional with 1 cubic
foot per minute.
2.5.3 Test Procedure: Set instrument on the instrument stand & connect the plug to 220 / 240 Volt socket. Insert the sampling probe and remove the protection stopper placed. Switch on the instrument, Run the particle counter for some time to get purge the particles
in suction tube. Program the instrument as per the sampling specification. Position the probe for the first sampling location near the SA diffuser. Start and execute the Sub-sequent Samplings (at all SA diffusers). Once the above procedure is completed, start the sampling at another point. The sampling has to repeat for the three times at each sampling point and later calculate to
define the class as per Federal Standard 209 E. 2.5.4 Reporting:
Summary table of all sampling performed. Mean particulate count at each point.
2.5.5 Acceptance: The Particle count data shown on the schematic plan should be not cross the specified level
(class 100,000).
2.6 LIGHTING LEVEL / ILLUMINATION TEST:
2.6.1 General Guide Lines For The Test: The purpose of this test is to verify that the Lux levels of the room at operating height.
2.6.2 Instrument: A portable photoelectric illumination meter.
2.6.3 Test Procedure: A Preliminary operating period of at least 100 Hours for fluorescent lighting (or 6 Hours for
incandescent lighting) must precede this test in order to obtain proper seasoning of the lighting fixture per the field measurement section.
Take all measurements after the room has been operated for at least two hours or time required for the temperature stabilization.
Take the lighting level measurement at the working level (1 mtr above floor).
2.6.4 Reporting: Room Schematic plan with Light fixture locations. Measure and record the light levels. Calculate the average lighting level.
2.6.5 Acceptance: The average of all measurements shall not be less than the design values specified for the room
or work area being tested.
2.7 DOOR INTERLOCK VERIFICATION:
56
2.7.1 General Guide Lines For The Test: The purpose of this test is verify that the locking system is functioning properly between two
door which are been interlocked by checking physically. This will also be done for Pass box doors.
2.7.2 Procedure: Open one door of the interlocking system Check that the other door is locked and can not be opened. Once the first door is closed check that the second door can be opened. The above process to be repeated from second door to first door.
57
SCOPE OF WORK IN GENERAL
General : These are special conditions to the contract and intended for the same.
The general character and the scope of work to be carried out under this contract is illustrated in ;
a) Schematic Facility layout drawings b) Enclosed G.A Drawings, c) Enclosed Technical Specifications d) Enclosed Schedule of Quantities. e) Room data sheet f) The contractor shall carry out and complete the said work under this contract in every
respect in conformity with the contract documents and with the direction of and to the satisfaction of the THSTI site representative. The contractor shall furnish all labor, materials and equipment as listed under the schedule of quantities and specified otherwise, transportation and incidentals necessary for supply, installation, testing and commissioning of the complete air conditioning system as described in the specifications and as shown on the drawings. This also includes any material, equipment, appliances and incidental work not specifically mentioned herein or noted on the drawings/documents as being furnished or installed. But which are necessary and customary to be performed under this contract. The central heating, ventilating and air conditioning, BMS system and Electrical system shall comprise of the following:
g) Supply and installation of the water cooled chilling Machines h) Chilled & Condenser Water Pumping Systems. i) Air Handling Units (AHUs). j) Exhaust Air Handling Units (EAUs) k) Fan Coil Units (FCUs). l) Hot water Generator. m) Centrifugal and propeller fans for mechanical ventilation. n) Motor Control Centers. o) All necessary Power and Lighting distribution boards p) All power and control/communication cabling including terminations q) Expansion tank along with the accessories. r) Chilled water, hot water, condensate drain piping inclusive of all valves, fittings and
chilled/hot pipes insulation as required . s) Pre-fabricated Sheet metal ducts inclusive of external insulation, canvas connection,
volume Control Dampers and smoke & fire dampers as specified. t) Supply of return air registers and diffusers. u) Insulation of pipes, pumps and tanks. v) Automatic Controls and instruments. w) Wiring and earthing from MCC panels to various refrigeration, air-conditioning and
mechanical ventilation equipment control wiring and interlocking.
58
x) Cutting holes, chases and the likes through all types of non structural walls and finishing for all type of wall crossings, including sealing, framework, fire proofing, providing sleeves, cover plates, making good structure and finishing to an approved standard.
y) Balancing, testing and commissioning of the entire HVAC and mechanical ventilation installations.
z) Test report, list of recommended spares, as installed drawings, operation and maintenance manuals for the entire HVAC installations.
aa) Training of owner’s staff. u) Integrated Building Management system allied works for field devices.
Associated Civil Works:
FOR COMPLETE DETAILS AND SPECIFICATIONS REFER DETAILS FURNISHED IN CIVIL SPECIFICATION SECTION OTHER CONDITION
1. Project Execution & Management:
2. The contractor shall ensure that senior planning and execution personnel from his organization are assigned exclusively for this project. They shall have minimum 10 years experience in this type of installations.
3. Contractor has to ensure strict monitoring And maintenance of all time limits stated by
them through Project Detail BAR/PERT Chart with ACTIVITY schedule. Any revision or
change of the time schedule should be defined with specific reasons and re-approved by
THSTI.
4. For quality control & monitoring of workmanship, contractor shall assign at least one full time Project Manager incharge who would be exclusively responsible for ensuring strict quality control ,adherence to the specifications and ensuring top class workmanship for the air-conditioning installation. Contractor shall assign one full time Senior EHS officer to ensure safety and security regulations stipulated in the contract document and should be well aware of local statutory regulations at the project site.
5. The contractor shall arrange to have mechanized and modern facilities for transportation of materials to the place of installation for speedy execution of work.
Performance Guarantee: The Contractor shall carry out the works in accordance with the
drawings, specifications, schedule of the quantities and other documents forming part of the
contract. The contractor shall be fully responsible for the performance of selected equipment
59
(Supplied & Installed by him) at the specified parameters and for the efficiency of the
installations to deliver the required end results. The contractor shall guarantee that the HVAC
system as installed shall maintain the inside conditions in the air-conditioning spaces as
described under the Basis of Design and ROOM DATA SHEET in the specifications. The guarantee
shall be submitted in the Performa sheet. Complete set of architectural drawings are enclosed
with the tender document and also available in the architect/Consultants office and reference
may be made to same for any detail or information. The contractor shall also guarantee that the
performance of various equipment individually, shall not be less than the quoted capacity
,actual power consumption shall not exceed the quoted rating, during testing and
commissioning ,handling over and guarantee period.
Bye–Laws and Regulations: The installations shall be in conformity with the by-laws and regulations
and standards of the local authorities concerned, in so far as these become applicable to the
installations. But if these specifications and drawings call for a higher standard of material and /or
workmanship than those required by any of the above regulations and standards then these drawings
and specifications shall take precedence over the said regulations and standards. However if the
drawings and specifications require something which violates the bye-laws and regulations, then the
bye-laws and regulations shall govern the requirement of the installations.
Fees and permits: The contractor shall obtain all permits/licenses and pay for any or all fees
required for inspection, approvals and commissioning of their installations.
Tender Drawings:
The facility drawings listed herewith, which may be issued with tenders are diagrammatic only
and indicate arrangement of various systems and the extent of works covered in the contract.
These drawings indicate the points of supply and termination of services and broadly follows
the BSL 3 lab facility configuration to be followed. Under no circumstances shall dimension be
scaled from the drawings. The architectural/interior drawings and details shall be examined for
exact location of the equipment, controls, grilles and diffusers.
The contractor shall follow the tender drawings in preparation of his necessary Heat Load
Calculations considering various room international conditions like desired (-)Pressure
gradients, Temperature and Relative Humidity to be maintained all all day 365x24 Hrs, shop
drawings and for subsequent installation work. He shall check the drawings of other
trades/services to verify spaces in which his works shall be installed.
Maximum headroom and space conditions shall be maintained at all points. Where head room
appears inadequate the contractor shall notify architect/consultant/owner’s site representative
before proceeding with the installations. In case installation is carried out without notifying the
works shall be rejected and the contractor shall rectify the same at his own cost. The contractor
shall examine all the architectural, structural, plumbing , electrical and other services drawings
and check the scope of total job content before starting the work , report to the owners site
60
representative of any discrepancies and obtain clarification. Any changes found essential to
coordinate his work with other services and trades, shall be made with prior approval of
architect/consultant/owner’s site representative without additional cost to the owner. The data
given in the drawings and specifications as exact as could be procured , but its accuracy is not
guaranteed.
Technical Data:
Each tenderer shall submit along with his tender, the technical data for all items listed in the
indicated format. Failure to submit complete data with the tenders may result in summary
rejection of the tender.
Shop Drawings :
All the shop drawings shall be prepared on computer through Autocad system based on
the architectural drawings, site measurements and interior designer’s drawings. All heat
load calculation shall be done within eight weeks of the award of the contract,
contractor shall furnish for the approval of THSTI two set of detailed shop drawing of all
equipment and material including the layouts of the plant rooms, AHU rooms, Fan
exact location of supports, flanges, bends, tee connections, reducers, guide vanes,
silencers, distribution grids, Volume control dampers, collars, grilles, diffusers, detailed
piping drawing showing exact location and type of supports, valves, fittings etc. acoustic
lining and external insulation details for ducts, pipe insulation etc. Electrical panels
inside/outside views, power and control wiring schematics, cable trays, supports and
terminations. These shop drawings shall contain all information required to complete
terminations. These shop drawings shall contain all the information required to
complete the project as per specifications and as required by THSTI site representative.
These drawings shall contain details of constructions, size arrangement, operating
clearances, performance characteristics and capacity of all items of equipment, also the
details of all related items of work by other contractors. Each shop drawing shall contain
tabulation of all measurable items of equipment/material/works and progressive
cumulative totals from other related drawings to arrive at a variation in quantity
statement at the completion of all shop drawings. Minimum 7 sets of drawings shall be
submitted after final approval along with their floppies.
Each item of equipment/material proposed shall be a standard catalogue product of an
established manufacturer strictly from the manufactures listed in Appendix (List of
Approved Make/Manufacturer) and quoted by tenderer in technical data part of
Appendix.
When the Architect/Consultant makes any amendment in the above drawings, the
contractor shall comply and supply two fresh sets of drawings with the amendments duly
incorporated along with check prints for approval. The contractor shall submit further 5
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sets of the shop drawings to the owners site representative for the exclusive use of the
owner’s site representative and all other agencies. No material or equipment may be
delivered or installed at the job site until the contractor has in his possession the approved
shop drawing for the particular material/equipment/installations.
Shop drawings shall be submitted for approval four weeks in advance of planned
delivery and installation of any material to allow Architect/Consultant ample time for
scrutiny. No claims for extension of time shall be entertained because of any delay in
works due to his failure to produce shop drawings at the right time in accordance with
the approved programme.
Manufacturers drawings, catalogues, pamphlets and other documents submitted for
approval shall be in four sets. Each item in each set shall be properly labelled, indicating
the specific services for which the material /equipment is to be used, giving reference to
the governing section and clause number and clearly identifying in ink the items and
the operating characteristics. Data for general nature shall not be accepted.
Samples of all materials like grilles, diffusers, controls, insulation, pre-molded pipe
section, control wires etc. shall be submitted to the owners site representative prior to
procurement. These will be submitted in 2 sets of approval and retention by owners site
representative and shall be kept in their site office for reference and verification till the
completion of the project. Wherever directed a mockup or sample installation shall be
carried out for approval before proceeding for further Installations. Approval of shop drawings shall not be considered as a guarantee of measurement or
that of a building dimension. Where drawings are approved said approval doesn’t mean
that the drawings supercede the contract requirements, nor does it in any way relieve
the contractor of the responsibility or requirements to furnish material and perform as
required by the contract.
Where contractor propose to use an item or equipment other than that specified or
detailed on the drawing which requires any redesign of the structure, partitions ,
foundations, piping, wiring or any other apart of the mechanical ,electrical and
architectural layouts ,all such redesign and all new drawings and detailing required
therefore shall be prepared by the contractor at his own expenses and gotten approved
by the architect/consultant/owners site representative. Any delay on such account shall
be at the cost and consequences to the contractor.
HVAC contractor shall prepare coordinated service shop drawings based on the drawings
prepared by electrical, plumbing & low voltage contractors to ensure adequate
clearances are available for installation of service for each trade.
Where the work of the contractor has to be installed in close proximity to or will
interfere with the work of other trade he shall assist in working out space conditions to
make a satisfactory adjustment. If so directed by the owner’s site representative , the
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contractor shall prepare composite working drawings and sections at a suitable scale,
not less than 1:50 clearly showing how his work is to be installed in relation to work of
the other trades. If the contractor installs his works before coordinating with other
trades or so to cause any interference with work of other trades he shall make all
necessary changes without extra cost to the owner.
Within four weeks of the approval of the relevant shop drawings the contractor shall
submit four copies of a comprehensive variation in quantity statement and itemized
price list of recommended (by manufacturer) imported and local spare parts and tools
covering all the materials/equipment in the contract. The project manager shall make
recommendation to owner for acceptance of anticipated variation in contract amounts
and also advise Owner to initiate action for procurement of spare parts and tools at the
completion of project. Quite Operation and Vibration Isolation :
All equipment shall operate under all conditions of load without any sound and vibration
which is objectionable in the opinion of the owner’s site representative.
In case of rotating machinery sound or vibration noticeable outside the room in which it is
installed or annoyingly noticeable inside its own room shall be considered objectionable.
Such condition shall be corrected by the contractor at his own expenses. The contractor
shall guarantee that the equipment installed shall maintain the specified NC levels.
Accessibility :
The contractor shall verify the sufficiency of the size of the shaft openings, clearances in
cavity walls and suspended ceiling for proper installation of his ducting and piping. His
failure to communicate insufficiency of the same. The contractor shall locate all
equipment which must be serviced, operated or maintained in fully accessible positions.
The exact location and size of all access panels required for each concealed damper ,valves
or other devices requiring attendance shall be finalized and communicated in sufficient
time to be provided in the normal course of work. Failing this the contractor shall make all
necessary changes and repairs at his own expenses. Access panel shall be standardized for
each piece of equipment/device/accessory and shall be clearly nomenclatured / marked.
Materials and equipment : All materials and equipment shall conform to the relevant Indian standards and shall be of
the approved make and design. Makes shall be strictly in conformity with the list of
approved make / manufactures.
Manufactures Instructions : Where manufacturer has furnished specific instructions relating to the
material/equipment used in this project, covering points especially not mentioned in these
documents, such instructions shall be followed in all cases.
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Electrical Installations :
The electrical work related to HVAC system, shall be carried out in full knowledge of ,and with complete coordination of contractor . The electrical installation shall be in total conformity with the control wiring drawings prepared by the contractor and approved by THSTI. All air-conditioning equipments shall be connected and tested in the presence of an authorized representative of the contractor.
The electrical and air-conditioning system shall be commissioned only after the contractor
has certified in writing that the electrical installation work for HVAC system has been
thoroughly checked, tested and found to be totally satisfactory and in full conformity with
the contract drawings ,specifications and manufacturer’s instructions . It is to be clearly
understood that the final responsibility for the sufficiency, adequacy and conformity to the
contract requirement s of the electrical supply, installation work for HVAC system, lies solely
with the contractor.
COMPLETION CERTIFICATE :
On completion of the electrical installation for entire facility set up and the HVAC system,
a certificate shall be furnished by the contractor, counter signed by the licensed
supervisor, under whose direct supervision the installation was carried out .This certificate
shall be in the prescribed form as required by the local authority. The contractor shall be
responsible for getting the entire electrical installation for HVAC system duly approved by
the local authorities concerned and shall bear expenses, if any in connection with the
same.
BALANCING , TESTING AND COMMISIONING
Balancing of all air and water systems and all tests as called for the specifications shall be
carried out by the contractor through a specialist group, in accordance with the
specifications and ASHRAE guidelines and standards. Performance test shall consist of
three days of 12 hrs each operation of each season .Witness testing of major equipment
at factory with two personnel from owners/ consultant shall be included. Formats for
Performance Test are enclosed with tender document for reference.
The results for summer , monsoon and winter air conditioning in quadruplicate ,shall be
submitted for scrutiny .Four copies of the certified manufacturers performance curves
for each piece of equipment ,highlighting operational parameters for the project ,shall
be submitted along with the test certificates. Contractors shall also provide four copies
of record of all safety and automatic control settings for entire installation.
The installation shall be tested again after removal of defects and shall be commissioned
only after approval by the owner’s site reprehensive. All tests shall be carried out in
presence 3rd Party appointed for certification / clearance and of the representatives of
the architect/consultant and owner’s site representative. Total cost for validation and
performance testing shall be on sole responsibility of the contractor.
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COMPLETION DRAWINGS
Contractor shall periodically submit completion drawings as and when work in all
respects is completed in a particular area . These drawings shall be submitted in the
form of two sets of DVD/CD’s and four portfolios (300 x 450mm ) each containing
complete set of drawings on approved scale indicating the work as installed .These
drawings shall clearly indicate complete plant room layouts ,location of wiring and
sequencing of automatic controls ,locations of all concealed piping ,valves, controls,
dampers, wiring and other services .Each portfolio shall also contain consolidated
control diagrams and technical literature on all controls. The contractor shall frame
under glass , in the air-conditioning plant room , one set of these consolidated control
diagrams.
Operating Instructions & Maintenance Manual :
Upon completion and commissioning of part HVAC, Electrical and BMS system the
contractor shall submit a draft copy of operating instructions, maintenance schedules
and log sheets for all system and equipment included in this contract. This shall be
supplementary to manufacturers operating and maintenance manual. Upon approval of
the draft the contractor shall submit four complete bound set of typewritten operating
instructions and maintenance manuals. One each for retention by consultant and the
clients representative and two for owners operating personnel. These manuals shall also
include basis of design, detailed technical data for each piece of equipment as installed,
spare parts manual and recommended spares for 2 years period of maintenance of each
equipment.
Maintenance during defects Liability Period (DLP) :
Comprehensive ‘Operation and Maintenance’ of the BSL 3 lab facility to be conducted
during 24 months of defect liability period. Necessary skilled manpower should be
stationed in facility for all 24x7 days and all 365 days a year for operation of the lab
during users in and users out time. The BSL 3 lab should never be stopped mainly the
stipulated HVAC , BMS access control, Fire and safety system.
Complaints :
The contractor shall receive calls for any or all problems experienced in the operation of
the system under this contract, attend to these within four hours of receiving the
complaints and shall take steps to immediately correct any deficiencies that may exist.
Repairs :
All equipment that require repairing shall be immediately serviced and repaired. Since
the period of mechanical maintenance runs for two years concurrently with the defects
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liability period , all replacement parts and labor shall be supplied promptly free of charge
to the owner.
Uptime Guarantee :
The contractor shall guarantee for the installed system an uptime of 98%. In case of shortfall in
any month during the defects liability period, the defects liability period gets extended by a
month for every month having shortfall. In case of shortfall beyond the defects liability period
the contract shall get extended by a month for every month having the shortfall and no
reimbursement shall be done for the extended period.
The contractor shall provide log in the form of diskettes and bound printed comprehensive log
book containing tables for daily record of all temperature. Pressure, humidity, power
consumption starting and stopping times for various equipment, daily service rendered for the
system alarms, maintenance records of unusual observations etc. Contractor shall also submit
preventive maintenance schedule.
Each tenderer shall submit along with the tender, a detailed operation assistance proposal for
the owners site representative / consultant’s review. This should include the type of service
planned to be offered during the defects liability period and beyond. The operation assistance
proposal shall give the details of the proposed monthly reports to the management.
The tenderer shall include a list of such project where such operation assistance has been
provided along with list of BSL 3 lab construction / completion certificates issued by relevant
organization established and in operation in India..
The contractor shall submit with their tender ,the requirement of soft make up water and
power at each of their equipment/system wise/floor wise/section wise.
(B) HVAC SYSTEM
WATER COOLED CHILLING MACHINE
SCOPE
The scope of this section comprises supply, erection, testing and commissioning of Air cooled
screw package chilling Machines conforming to these specifications and in accordance with the
requirement of Drawings and schedule of Quantities.
TYPE
The chilling machine shall be with hermetic/semi hermetic type (and not open type)
transition star-delta starter, air cooled condenser, shell and tube chiller, refrigerant piping,
micro processor control, all mounted on a steel frame and control power wiring/cabling.
ACTUAL CAPACITY
Actual refrigeration capacity of chilling machine shall be as shown on drawings and in schedule
of Quantities.
WATER COOLED SCEW CHILLER
The water cooled liquid chiller will consist of accessible hermetic/semi- hermetic, direct driven
screw compressor with independent circuits evaporator, condenser, microprocessor based
control and a unit-mounted motor starter, refrigerant charged, factory run-tested and rated in
accordance with ARI 550-90 and ready for operation.
SCREW COMPRESSOR
The compressor will be mono/ twin screw (helical Rotary) type design for positive displacement
for use with ozone friendly refrigerant conforming to prevailing international standard.
During function, it will be pure rotary motion providing uniform gas flow, even torque and
positive displacement to ensure vibration-free operation over a wide range of operating
conditions.
The rotor tip clearance will be optimized to reduce leakage between high and low pressure
cavities during compression and also to achieve high energy-efficiency. The capacity controlling
device shall be arranged for unloaded start power consumption shall proportionately reduce
with the stepping down of compressor capacity to as low as 25% of full load in direct response
to refrigeration load changes.
COMPRESSOR MOTOR ASSEMBLY
The screw compressor will have, accessible hermetic direct drive motor with 2950 rpm (or as
per manufacturer’s design speed), working on 415V+ 10%,3 phase, 50 HZ power supply, as
normally available in India. The motor will be squirrel cage two pole induction type will be
section gas-cooled. Due consideration will be given while deciding the protection devices to
take care of probable voltage fluctuations prevailing at site.
The system will be provided with oil separator and filtration devices.
CONDENSER
Condenser coil shall be air cooled with integral sub-cooler constructed of aluminum fins
mechanically bonded to seamless copper tubes which shall be then cleaned, dehydrated and
sealed.
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Condenser fans shall be direct driven propeller/axial type, with totally enclosed air over motor,
having class ‘F ’ insulation and IP 54 protection, discharging air vertically upwards and shall be
equipped with the following features.
a. Permanently lubricated bearings. b. Steel wire safety guards duly coated with PVC c. Statically and dynamically balanced fan blades.
Air cooled condenser coil shall be leak tested at 150 Psig (1034 KPa) and pressure tested at 450
Psig (3103 KPa).
CHILLER (COOLER)
Chillers shall be direct- expansion/flooded type comprising mild steel shell, integrally finned
copper tube Rolled into tube sheets, cast iron water headers, liquid line connection, suction
header, drain plug and purge valves.
Shell and tube type chillers shall have the following components:
a. SHELL AND WATER BOXES The chiller shell shall be formed of carbon steel , provided with cast iron water
boxes having standard flange type connections suitable for 10 KG .per sq.cm
(150 psig ) working and 21 KG/sq.cm (300 PSIG) test pressure. Water boxes shall
be provided with drain connections and shall be easily openable for tube
cleaning. Suitable tappings shall be provided in the water boxes/water lines for
temperature control bulb and gages.
b. TUBE SHEETS
A thick steel tube sheet shall be welded to each end of the shell and shall be
drilled and reamed to accommodate tubes. Annular grooves in the tube sheets
shall prevent leakage at the tube sheet bond. Tube support sheets shall be placed
along the length of the shell to avoid relative motion between the tubes.
c. TUBES
12.5 to 19 mm dia. Seamless copper tubing, not less than 24G wall thickness,
shall be used for evaporator surface. Tube shall be rolled into the tube sheets
and shall pass through intermediate supports so that the refrigerant side of the
evaporator shall be leak free and there shall be no relative motion between
tubes and tube supports. Each tube shall be individually replaceable.
d. INSULATION
The chiller shell be covered with closed cell insulation material.
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Salient features of the chiller will be as briefed below :
a. It will be shell be shell-and tube type with removable heads .
b. Tubes shall be internally enhanced seamless-copper type rolled into tube sheets.
c. It will be equipped with victaulic- type fluid connections.
d. Shell be insulated with closed- cell insulation material.
e. Design shall incorporate minimum 2 nos. independent direct expansion
refrigerant circuits.
f. Cooler (Chiller) shall be tested and stamped in acco-dance with ASME Code for a
refrigerant working side pressure of 278 Psig (1916 KPa). Cooler shall have a
maximum fluid –side pressure of 300 psig (2068 KPa).
3.9 REFRIGERANT PIPING AND COMPONENTS
Refrigerant piping and fittings inter connecting compressor, condenser and chiller shall
be all copper and valves shall be brass/ gun metal construction as explained in section
‘PIPING’
Refrigerant circuit components shall include hot gas muffler, high side pressure switch,
liquid line shut off valves, suction and discharge shut off valves, filter drier moisture-
indicating sight glass, electronic expansion valve and compressor oil.
3.10 Salient features of the Cabinet will be :
a. Frame shall be of heavy-gage galvanized steel members. b. Cabinet shall be galvanized steel casing with a pre-painted finish. c. Cabinet shall be capable of withstanding 500-hour salt spray test in accordance
with the ASIMB-117 standard. d. The assembly shall be installed outdoor and should, therefore, have adequate
weather protection/resistance.
3.11 COTROLS
a. Unit Control Module
The unit shall be provided be with microprocessor control system for air cooled Rotary
chiller with latest chiller control technology.It shall have control logic with the Clear
Lauguage Display which will have various functions that allow the operator to read unit
information and adjust set points. The Clear Language Display panel will have sufficient
keys (normally 15 nos.) The read –out screen shall be a four lines ,20 character liquid
crystal with a backlight. The backlight shall allow the operator to read the display in low
– light conditions.
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b. Unit Control Module Features.
Equal Compressor SequencingThe control system shall maximize both compressor and
motor life by equalizing the number of starts and the operating hours. The UCM will
start the compressor with the least number of starts and turn off the compressor with
the most operating hours, equalizing starts and running hours, This will provide equal
compressor wear to various units.
Chiller Flow Protection
The in-built protection will automatically detect a no water flow condition.
c. Chiller System Logging
The UCM will display data required to log the chiller system. The following information
will be available as standard feature with the Air-Cooled Rotary Chiller microprocessor.
- Entering and leaving chilled water temperatures - Ambient air temperature - Evaporator and condenser refrigerant temperatures and pressures. - Compressor suction temperature. - Percent line voltage - Compressor starts and running hours - Active set points; Chilled water set point, Current limit set point, Low ambient
lockout set point
- Over 90 diagnostics: and operating conditions
- Part failure diagnostics: Water temperature sensors, Refrigerant temperature sensor, Compressor contactors
d. Remote Display Panel
The system shall be provided with a twisted pair connection to an optional remote
display panel. With this provision it will be possible to control chiller operation from the
remote panel similar to the control interface on the chiller itself , and it will be possible
to turn ‘On’ Or ‘Off’ change the chilled water set point, and display all operating and
diagnostic condition from this panel. The remote display panel shall be mounted indoors
so that it can be accessed without the need to go to the chillers plant room/site.
Remote clear language display will have the ability to control multiple units. In the
multiple unit configuration, the Remote Clealer Language Display Panel will have the
capability to communicate with upto four units. Each unit will require a separate
communication link with the Remote display Panel.
e. Interface To The Building Management system
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The system should have provisions and facility for interfacing the chiller with building
management systems:
Chiller inputs will include:
- Chiller enable/disable - Circuit enable/disable - Chilled water set point - Current limit set point - Chiller outputs will include:
- Compressor running indication - Alarm indication (for each circuit) - Maximum capacity
a. Chillers shall be rated in accordance with parameters stipulated in specifications and schedule of quantities. Pressure vessels shall be designed, constructed, tested and complete with safety devices in accordance with ANSI/ASHRAE 15-1989 Safety Code and ASME Code.
b. The Chiller shall be designed, manufactured and tested in accordance with the applicable portions of the latest revisions of the following recognized standards and Codes.
ISOs :
ISO 9001:1994, ! Design manufacture and testing of Air
EN ISO 9001: 1994, ! Cooled screw Water Chilling Package.
BS EN ISO 9001: 1994, !
ARI 550-90 - Air Conditioning and Refrigeration Institute : Standard for Air Cooled
Screw water Chilling Packages (General Specifications, Testing and Rating)
ARI 575 - Air Conditioning and Refrigeration Institute: Standard Method of Measuring
Machinery soundWithEquipment Rooms (Basis of all data presented or field testing of
equipment, with relation to sound requirements).
ASME CODE - American Society of Mechanical Engineers Code :For Unfired Pressure
Vessels – Section VIII (Design, Construction, testing and Certification of Pressure Vessels).
ANSI-B9.1- American National Standards Institute Safety, Code For Mechanical Refrigeration
(Overall general safety Requirements, relief device sizing etc.)
ANSI-B31.5 -American National Standards Institute Code
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TEMA -Tubular Exchanger Manufacturer’s Association.
ISO R 281 - Rolling Bearings – Dynamic Load Ratings
Electric Hot Water Generator
The hot water generator shall be vertical/horizontal shell type designed, constructed and tested
for the specified water flow and temperatures.
The shell of the generator shall be made of steel with electric fusion welded seams. The shell
shall be designed for 50 Deg C of water circulation unless specified otherwise.
The shell with insulation shall be mounted inside a cabinet of angle iron frame with 16 SWG
mild steel covers held with lock/bolts and hinges. The cabinet shall be provided with sufficient
louvers and rat proofing to ensure ventilation of heater terminals of boilers shall be installed
above the finished surface of insulation and angle iron frame. The angle iron frame shall be
provided with fittings lugs and pedestals. Electric heaters shall be provided in banks of equal
capacity distributed on three power phases. Heaters shall be mounted within seamless
incoloysheathed electrically resistant U tubes. The heaters shall be easily removable externally
without opening the terminal plate or disturbing other components. The heater mounting
socket shall be made leak proof. Heaters shall be suitable for 415V+_10%/50hz/3phase power
supply.
The hot water generator shall be provided with following accessories :
Interlocking of electric panel cover with incoming switch/limit switch.
Flow switch, float switch, automatic alarm for low water level and high temperature / pressure switch with respective indication lights.
Drain point with valves.
Descaling Valves
Automatic air vents and automatic high temperature / pressure relief valve.
Manual thermostat for individual heater bank and master safety thermostat of fixed setting.
Insulation of shell with 100 mm thick resin bonded fiberglass and 26 Guage Al cladding.
Falnges for water piping connections.
The Electrical control cabinet shall be made as detailed above and mounted directly on the
main frame. All controls and terminals shall be factory wired and tested. The control cabinet
shall consist of following major controls and rated capacities unless specified otherwise.
Incoming MCCB
On/off toggle switch for individual banks
Starter with HRC fuses.
HRC fuses and individual heaters
Indicating lights for on status and individual bank.
Fault indicating lights
Alarm with manual reset
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Thermostats
Cabling and control wiring
Three phase ammeter with selector switch
The panel shall be openable only after switchingoff the incoming supply.
The external surface of the shell shall be cleaned , derusted and applied with three coats of
primer and panted.
AIR HANDLING UNITS
1 SCOPE
The Scope of this section comprises the supply, erection, testing and commissioning of double skin Air Handling Units conforming to these Specifications and in accordance with requirements of drawings and schedule of quantities.
2 TYPE
The Air Handling Units shall be of floor mounted draw through type having sections such
as filter section with pre-filters, microvee filters and HEPA filters as required under BOQ
,cooling coil section with suitable chilled water cooling coil, fan section with PLUG fan,
mixing section where required under BOQ, humidification section with centrifugal fan as
per schedule of quantities and arrangement shown on the drawings.
3 CAPACITY
The air moving and coil capacities (Air Conditioning Load) shall be as shown in Schedule
of equipment and quantities and on drawings.
4 CASING
The housing/ casing of the air handling unit shall be of double skin construction. The
housing shall be so made that it can be delivered at site in total/ semi knock down
conditions depending upon the conditions. The frame work shall be of extruded
aluminium hollow sections fitted with pre-formed insulated sections. All the members
shall be assembled thru mechanical joints to make a sturdy and strong frame work for
various sections.
Double skin panels (each not exceeding 750mm wide) shall be made of 22G pre-coated
Galvanised sheet steel and 22G galvanised sheet inside with pressure injected PU foam
insulation of 50mm thick X 48 Kg/Cu.M in in between. The panels shall be bolted from
inside on to the frame work with soft rubber gasket in between to make the joints air
tight.
Thermal Break Frame work for each section shall be bolted together with soft rubber
gasket in between to make the joints air tight. Suitable doors with powder coated
hinges and latches shall be provided for access to various panels for maintenance.
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The fan and the motor arrangement shall be mounted on to the extruded aluminium
frame work. The entire housing i.e. The Air Handling Unit shall be mounted on extruded
aluminium base channel framework.
Drain pan shall be constructed of 16 SS sheet having 12 mm thick 32 Kq/Cu. XPE
insulation.The pan shall have necessary slope to facilitate for fast removal of
condensate.
5 MOTOR AND DRIVE
Fan motors shall be 230 ± 10% volts 50 cycles 3 phase totally enclosed fan cooled with
IP-55 rotation. Motor shall be especially designed for quite operation and motor speed
shall not exceed 1440 RPM. Drive to fan shall be provided through belt drive
arrangement. Belts shall be of oil-resistant type. Adjustable sheaves shall be provided.
6 FAN
The fan shall be Direct driven PLUG type complete with motor and drive package (as per
approved make only). The fan shall be selected for a speed not exceeding 1500 RPM. The
fan outlet velocity shall not be more than 1800 rpm. Fan housing with motor shall be
mounted on a common steel base mounted inside the AHU on anti vibration springs or
cushy foot mount. The fan shall be direct driven type. Another fire retardant canvass
connection shall be provide at unit outlet to connect the ducts.
7. Cooling Coils :
The cooling coil shall be seamless copper tubes not less than 0.437 mm thick and 12.5
mm O.D. The coil shall have continuous aluminium fins. The tube shall be staggered in
the direction of air flow. The fins shall be uniformaly bonded to the tubes by mechanical
expansion of the tube. The coil shall be tested against leaks
At a hydraulic pressure of 21kg/m3 for a period of two hours.The water headers shall be of copper pipes to connect all the tubes. The header shall be complete with water In/Out connections, vent plug and drain at the bottom and designed to provide a water velocity between 0.6 to 1.8 m/s ( 2 to 6 FPS)
8. Filters :
As asked for under Bill of quantities to maintain class: 100,000.
9. Electrical Panel :
Each unit shall have its own electric panel consisting of MCCB / fuse switch unit, starter,
indicating lamps ,incoming/outgoing internal and external wiring and earthing as per the
details in BOQ.
10 Fresh Air Control :
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An adjustable damper of Al/GI sheet along with bird screen ,air inlet louvers and air filters shall
be provided for fresh air entry. The damper shall be sized for 50% of designed air quantity.
11 Limitations :
The air velocity across the cooling coils shall not exceed 500 fpm.
The fan outlet velocity shall not exceed 1800 fps (9m/s) in any case.
The velocity across the filters shall not exceed 500 fpm in any case.
COOLING TOWER
General
FRP Induced draft cooling tower complete with weather proof motor, GI ladder, hot dip
galvanized support structure, FRP basin, Flow 600 US GPM ( 36.5 deg C to 32 deg C ) WBT
28,33 deg C . Quoted price should be inclusive of necessary civil and structural cost for
foundation in all respect as required.
CONDENSER WATER PUMPS
1. General
The various items of pump shall be complete in all respect and comply with the
specification given below:
2. Pump Sets
The pump sets shall be vertical split casing type with end suction and top discharge
flanged connections, mounted on drip proof squirrel cage induction motor with suitable
starter as specified. Pumps shall be as per IS:1520-1960, IS:9079, IS:325 and shall be of the
following construction:
1. Casing Cast Iron/Cast Steel
2. Impeller Bronze
3. Shaft High Tensile Steel
4. Shaft sleeve Bronze
5. Bearings Heavy Duty Ball/Roller bearings
6. Base Plate Cast Iron/Fabricated M.S.
7. Flanges BIS 1536/1960
8. Packing Graphited Asbestos
9. Max. Speed 1500 RPM/2900 RPM
10. Drive TEFC motors for monobloc upto 3.7 KW &
SPDP motors for higher ratings.
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11. Starter See Section "Electrical Switchgears"
a) Drive ratings shown are only tentative and Tenderers shall select their drivers at least 5%
in excess of the maximum BHP of the pump plus transmission losses, if any. Drivers shall
be supplied with starters unless otherwise stated.
CHILLED WATER PUMPS
1. General
The various items of pump shall be complete in all respect and comply with the
specification given below:
2. Pump Sets
The pump sets shall be vertical split casing type with end suction and top discharge
flanged connections, mounted on drip proof squirrel cage induction motor with suitable
starter as specified.
Pumps shall be as per IS:1520-1960, IS:9079, IS:325 and shall be of the following
construction:
1. Casing Cast Iron/Cast Steel
2. Impeller Bronze
3. Shaft High Tensile Steel 4. Shaft sleeve Bronze
The Contractor shall provide for expansion and contraction of all piping installed by the
use of swing connections and expansion loops.
11 Arrangement and Alignment of Piping
All piping shall be arranged and aligned in accordance with the drawings as specified.
Where special conditions are encountered in the field, the arrangement and alignment of
piping shall be as directed by the Engineer-in-charge.
Unless otherwise specified, the piping shall be installed in a uniform manner, parallel to or
perpendicular to walls or ceilings, and all changes in directions shall be made with fittings.
The horizontal piping shall be run at right angles and shall not run diagonally across rooms
or other piping. Wherever possible all piping shall be arranged to provide a maximum
head room.
All piping shall be installed as directly as possible between connecting points in so far as
the work of other trades permits. Where interference occurs with another trade whose
work is more difficult to route, this contractor shall reroute his pipes as required to avoid
interference at the discretion of the Engineer-in-Charge.
All piping shall be carefully installed to provide for proper alignment, slope and expansion. The stresses in pipelines shall be guided and pipes shall be supported in such a manner
that pipe lines shall not creep, sag or buckle.
Anchors and supports shall be provided wherever necessary to prevent any misalignment
of piping.
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Small tubing, gauges, controls or other equipment installed on any apparatus, shall not be
coiled or excessive in length, but shall be installed neatly, carefully bent at all changes in
direction, secured in place and properly fastened to equipment at intervals to prevent
sagging.The piping shall be grouped wherever practical and shall be installed uniformly in
straight parallel lines in either vertical or horizontal positions. All tubing/capilaries shall be
provided with PVC sleeves to save it against frictional cuts or damage due to vibration.
12 Testing
In general, tests shall be applied to piping before connection of equipment and appliances.
In no case shall piping equipment or appliances be subjected to pressures exceeding their
test rating.The tests shall be completed and approved before any insulation is applied.
Testing of segments of pipe work will be permitted, provided all open ends are first closed,
by blank-offs or flanges.
After tests have been completed, the system shall be drained and flushed 3 to 4 times and
cleaned of all dust and foreign matter. All strainers, valves and fittings shall be cleaned of
all dirt, fillings and debris.
All piping shall be tested to hydraulic test pressure of at least two times the maximum
operating pressure but less than 10 kg/sq. cm. for a period of not less than 24 hours. All
leaks and defects in the joints revealed during the testing shall be rectified to the
satisfaction of the Engineer-in-Charge, without any extra cost.
All the piping systems shall be tested in the presence of the Engineer-in-Charge or their
authorised representative. Advance notice of test dates shall be given and all equipments,
labour, material required for inspection, and repairs during the test shall be provided by
the contractor. A test shall be repeated till the entire system is found satisfactory to the
above authority. The tests shall be carried out for a part of work if required by the
Engineer-in-Charge in order to avoid hindrance in the work of the insulation contractor. All
water and condensate pipes shall be tested and proven tight under hydrostatic pressure of
10 kg/sq.cm., unless otherwise stated, for a minimum period of 24 hours without drop in
pressure.
The Contractor shall make sure that proper noiseless circulation is achieved through all
piping systems. If due to poor air bond, proper circulation is not achieved, the contractor
shall bear all expenses for carrying out the rectification work including finishing of floors,
walls and ceiling damaged in the process of rectification.
The Contractor shall provide all labours and materials to make provision for removing
water and throwing it at the proper place during the testing or/and after the testing to
avoid damages to employer or other contractors properties. Any damage caused by the
contractor to the employer or other contractors properties, shall be borne by the
Contractor.
13. Copper Piping
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Heavy gauge soft copper tubing, type M, shall be used to make connections to equipment,
wherever required or specified by Engineer-in-Charge.
Flare fittings e.g. flare nuts, tees, elbows, reducers, etc. shall all be of brass.
14. Refrigerant Piping
The refrigerant circuit piping shall be of carbon steel seemless, as per ASTMA-106, grade B
or BS-3602 grade 23 and dimensioned as per ANSI B-36.1, schedule 40. The fittings shall be
heavy class. The pipes and fittings shall be connected by means of welded joints. The
connections to gauges, controls, etc. shall be with flare fittings. The refrigerant valves,
Girth angles and companion flanges shall be mitered and welded at corners and riveted to duct
sheets at 75mm centers. Flanged joints shall be made with 9.5-mm GI bolts spaced at 1.5cm
centers and provided with 4.2mm rubber or 6.0mm. All joints and seams shall be rendered
airtight. All duct seams and joints to be sealed with silicon sealant to stop supply air leakage.
Duct panels are not to be cross-broken if insulated. Longitudinal seams shall be inside groove of
Pittsburgh type. All ducting supports, bracing and framework shall be painted with 2 coats of
epoxy primer and 2 coats of epoxy paint min. (50 microns). 3. Accessories:
All dampers, except where shown, shall be louver dampers having multiple opposed blades type or with parallel blades of airfoil construction. The construction of the dampers shall be robust and tight fitting. They should be made from 18 gauge galvanized sheets. The depth should be minimum of 150mm and flanges of 40mm. Blades shall be connected with a suitable linkage for operation by an extending by an extending lever, which shall have a locking quadrant with positions of the damper indicated on it. Dampers and their operating device shall be made robust, easily operable and accessible through suitable access doors in the ducts.
Dampers shall be provided in ducts at every branch supply or return air duct connections whether or not indicated on the drawings for the proper volume control and balancing the system.
Where shown, splitter dampers shall be installed. This damper consists of double thickness airfoil blade hinged on the downstream edge. The operating lever shall extend outside the duct and insulation with an airtight hub and locking arrangements. The thickness of the damper blades shall be the same as the duct in which they are installed but not less than 1.5mm thickness.
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Fire dampers shall be motorized / solenoid type wherever specified shall be provide in the ducts to minimize spreading of fire through ducts, i.e. points where duct passes fire (rated 1 ½ hrs. or more) wall or slab. Fire dampers shall be 230mm – deep and face area as required. The outlet casing of the damper shall be fabricated out of 12 gauges M.S. sheet duly epoxy painted with two coats. The louvers shall be provided with smooth pivoted linkage, tripping mechanism of steel bar with heavy-duty spring assembly and provision of motor. The louvers to be arranged to pivot and hold in an open position and can be closed by an electrically operated motor. The damper is used in conjunction with a smoke alarm system. The entire assembly shall be duly epoxy primer of 2 coats (epoxy paint) or aluminum spray painted. The dampers shall be designed for automatic as well as manual tripping.
Motors shall be rated for fire damper (spring to close power to open) operation and shall be suitable for outdoor installation (IP55). Fire dampers are closed on a signal from the fire control module. Module supply and wiring by fire control contractor.
Motorised dampers should be single flap dampers with 18 gauge construction with Belimo or Equivalent make spring return type. Opening time should be more than 75secs. And closing time should be 30secs. The power shall be given from the electrical panel and will be routed through the unit.
300mm X 300mm access panels with gasket neoprene and stud bolt type shall be provided near lower dampers/ splitters dampers and fire damper. All main ducting work shall be accessible throughout using tight fitted hinged access doors. Doors shall be cemented sponge rubber gaskets of 6mm thickness. Felt is not acceptable. In the case of insulated ducts with access doors, the same shall be properly insulated, such that it can be operated
without damaging the duct insulation and there should be no condensation either on the access doors or on the ducts when he plant is running.
4. Installation Guidelines
The duct fabrication and installation shall generally confirm to IS 655-1963.
All ducts shall be supported from the concrete slab or beams. Duct supports shall be fixed through the use of two anchor fasteners for each leg. The anchor fasteners shall be of approved make. If ducting is supported from steel structure, Beam Clamps shall be provided. In no case shall the duct be supported from the false ceiling hangers or be permitted to rest on a hung ceiling.
Transverse joints shall be provided with rubber gaskets (6mm thk.) of nonflammable type. Use of felt shall not be permitted.
Wherever the ducts are acoustically lined, the duct size shall be increased by the thickness of the duct lining.
The contractor shall provide and neatly erect all sheet metal work as per the specifications and drawings. This work ,in all its parts and details, shall meet with the approval of the Engineer
The contractor shall make all necessary allowances and provisions for beams, pipes or other obstructions in the ducting, whether or not the same has been shown in the drawings. Wherever necessary to avoid beams or other structural works, plumbing or other pipes / conduits, the ducts shall be transformed, divided or curved to one side as approved or directed by the Engineer. However the required cross-sectional area shall be maintained.
All metal work shall be done in dead or furred down spaces so as not to cause any delay to other contractors on the building.
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If a duct cannot be installed as shown in the drawings, the contractor shall install the duct between the required points by any path available subject to the approval of the Engineer and Architect.
All ducts shall be rigid and shall be adequately supported with standing seams, tees or angles of ample size wherever required to keep the ducts true to shape, prevent buckling, vibration and breathing.
All duct joints shall be tightly fitted using rubber gasket of nonflammable type and all interior surfaces shall be smooth. Bends shall be made with radius not less than one-half of the width of the duct or with properly designed interior curved vanes. Two vanes shall be spaced such that the aspect ratio of each of the individual elbows formed by the vane will be about five to one.
All sheet metal connections, partitions and plenums required to confine the flow of air to and through the filters and fans, shall be constructed from 16G galvanised iron thoroughly stiffened with 25mm X 25mm angle iron braces and fitted with all necessary doors as required to give access to all parts of the apparatus. Doors shall not be less than 46 cm X 71cm. Sheet Metal connections to indoor units shall be flexible, double thickness fiberglass cloth or equivalent nonflammable material of 100mm long.
Where metal ducts or sleeves terminate in woodwork, brick or masonry openings tight joints shall be made by the means of closely fittings heavy flanged collars.
Resistoflex or similar vibration isolation material of 6mm thickness shall be provided between ducts and duct support.
Where ductwork is connected to rotating equipment duct such as fans, air handling units (indoor unit of split/package system), the connections shall be made with double thickness nonflammable flexible material, 100mm long.
5. Grilles and Diffusers:
Supply Air Side Wall Outlets
Wherever specified in the B.O.Q. shall be in Aluminum construction.
Double Deflection Grilles:
Wherever specified in the B.O.Q. shall be in Aluminum construction. Aluminum double deflection grills for supply air shall be provided with vertical and horizontal adjustable bars and an approved blade damper adjustable from the front face of the grille. The grilles will be powder -coated in a shade as given in the schedule of finishes of this handbook.
Fixed Bar Linear Grilles
Fixed bar grilles will be in extruded aluminum construction. Bars shall be fixed in position using
vertical tie bars. Bar spacing shall not exceed 12mm and the grilles shall have 60% free area.
Deflection angle of the bars shall be 0. The grilles will be powder coated in a shade as per the
owner/architect. Irrespective of grille finish, vertical tie bars shall be powder coated in Matt
black. Supply air outlets shall be provided with volume control dampers to be installed in the
duct collar. Dampers shall be in black Matt powder coated finish. Where required by the
Architects/Consultants, the grilles shall be provided with a margin on all sides. Supply air outlets
shall be provided with end closure pieces for the supply portion of the grille. The end closure
pieces shall not come to the grille face.
• Continuous grilles shall butt with hairline joints and be provided with interlocking
splines.
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• All return air grilles shall be similar and equal to the above as determined by consultants.
• All exhaust air grilles shall be similar and equal to the supply air grilles specified above.
6. Ceiling Outlets:
Square / Rectangular Diffusers:
Shall be of aluminum construction wherever specified in the BOQ. Corners of inner and
outer cores shall be assembled to provide precise mitered corners. Supply air diffusers
shall be provided with multi blade butterfly dampers. Damper flaps shall be provided
with a nylon worm gear assembly for ease of operation. Diffusers will be powder -coated
in a shade as approved by client/Architect. Diffuser shall be half step down type.
7. Guidelines for Installation of Grilles/Diffusers
Installation of the grilles/diffusers shall be done by the air conditioning contractor
irrespective of the type/model of false ceiling systems .The diffusers will have to be
individually suspended from the duct and aligned to match the ceiling line level. In case
gypsum or any other false ceiling system, all wooden frames, rectangular or circular for
supply/return/exhaust air diffusers will be provided by the Air conditioning contractor.
All air outlets/return air inlets in the same room shall be of the same size unless
otherwise specified.
Grilles and diffuser samples must be submitted to the consultants for prior approval
before procurement and installation.
Duct and Pipe Insulation
Ductwork shall be insulated as per the below specified guidelines.
Painting
Angle iron Flanges, Stiffeners, hangers and supports shall be painted with 2 coats of anti-
rust primer and remaining uncovered duct shall be further painted with 2 coats of
synthetic enamel paints of black color.
Testing and Balancing
After completion of ducting work, system shall be tested for air leakage as per DW-142
standard. Leakage if any shall be plugged and all the adjustments and balancing are
completed. The air quantity readings shall be recorded. All dampers shall be set and
locked in position after the final adjustments. All readings made shall be submitted to
the consultants for approval.
Insulation
All tests like pressure testing should be completed and recorded. All systems shall be approved
by the Consultants before insulation is applied to the equipment, duct and piping. Insulation
material shall be supplied by approved manufacturers and shall be of the type specifically
intended for the services required. Ductwork & Piping Insulation Application Guidelines :
Piping and accessory insulation application shall be as follows:
Pipes shall be thoroughly cleaned with wire brush and rendered free from all rust and grease.
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For insulation of straight pipe slip on method shall be used. For elbows and bends snap off method will be used.
First 2 coats of specified Insulation adhesive shall be applied then the Insulation shall be fixed tightly on the surface taking care to seal all joints .
Adequately sized PVC self-adhesive tape shall be provided to seal all joints afterwards Al cladding shall be done as per requirements.
polyethylene FR-XPE of fire retardant grade in roll form the insulation up to 32 mm thick and
density shall not be less than 33 kg/m3 and the thermal conductivity shall be 0.027kcal/hrm2C
at mean temperature of 0 C. The insulation thickness shall be 19 mm on all ducts except the
toilet and basement exhaust.
Pipework Insulation :
All chilled water and drain pipes Insulation shall be as follows. The material will be Closed cell
ARMACELL Pipe Sections of 32 mm thk..
( C ) Electrical System & Control Panel, Motors and switchgears
1. General
This specification covers the designs, material, construction features, manufacture,
inspection and testing at the VENDOR'S/his sub-contractors work, delivery and
performance testing of metal-enclosed Medium Voltage Switchgear of voltage not
exceeding 1000 V AC.
The switchgears would comprise of Motor Control Centres (MCCs) required for the supply
of power to the motors of the plant for medium voltage equipment.
2. Codes & Standards
The design, construction, manufacture and performance of equipment shall conform to
latest applicable standards and comply with all currently applicable statutes, regulations
and safety codes in the locality where the equipment will be installed. Nothing in this
specification shall be construed to relieve the VENDOR of this responsibility. Equipment
shall conform to the latest applicable standards as mentioned. In case of conflict between
the standards and this specification, this specification shall govern. All components shall
be of reputed make and subject to Purchaser's approval and as per recommended
manufacture.
3 Power Supply System
The incomer power supply shall be 415V, 3 phase, 3 wire, 50 Hz, non-effectively earthed
AC system. The fault level for the switchgear shall be 40 KA for 1 sec.
Dynamic - 84 Ka (Peak) - Short time
Variation of voltage and frequency from their rated values are as below :
Variation of voltage + 10%
Variation of frequency + 5%
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Combined voltage and frequency
variation + 10% 4 Site Conditions
The following site conditions shall be considered for the design of the MCCs
Reference Temperature }
Relative Humidity } Ref :As per ASHRE guideline
Climatic Conditions }
5 Sheet Metal Work
The switchgear frame shall be fabricated using suitable mild steel structural sections or
pressed and shaped cold rolled sheet steel of thickness not less than 2 mm.
Frames shall be enclosed by sheet metal of thickness not less than 2 mm cold rolled or
2.5mm hot rolled, smoothly finished, levelled and free from flaws. Doors and covers shall
be made of sheet steel of thickness not less than 1.6mm. Cold rolled or 2mm hot rolled.
Stiffeners shall be provided wherever necessary.
All panel edges and door edges shall be reinforced against distortion by rolling, bending or
by the addition of welded reinforcement members.
Cut-outs shall be true in shape and devoid of sharp edges.
The complete structure shall be rigid, self-supporting, free from vibration, twists and
bends.
6 Painting
All sheet steel work shall be phosphated in accordance with the following procedure and
in accordance with applicable standards.
Oil, grease, dirt and swarf shall be thoroughly removed by emulsion cleaning.
Rust and scale shall be removed by pickling with dilute acid followed by washing with
running water, rinsing with slightly alkaline hot water and drying.
After phosphating, thorough rinsing shall be carried out with clean water, followed by final
rinsing with dilute dichromate solution and oven drying.
Panels shall be dry electrostatic painted (powder coated).
Finished painted appearance of equipment shall present an aesthetically pleasing
appearance, free from dents and uneven surfaces.
7 Constructional Features
Switchgear panel shall be :
a) of the metal enclosed, indoor, floor mounted modular type
b) made up of the requisite vertical sections
c) of dust and vermin proof construction
d) provided with a degree of protection of IP-54
e) easily extendable on both sides by the addition of vertical sections after removing
the ends covers
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f) provided with a metal frame made of structural steel channel section
properlydrilled for mounting the Switchgear along with necessary mounting
hardware. Hardware shall be zinc plated and passivated
g) provided with labels on the front indicating the switchgear designation
h) provided with cable entry facilities at top or bottom with 3mm thick removable
and plates and necessary cable glands. For 1 core cables these plates shall be
non-magnetic
i) of uniform height of not more than 2450 mm
j) of double front execution
k) provided with gaskets all round the perimeter of adjacent panels, panel and base
frame, removable covers and doors
l) provided with copper busbars running at the top or bottom, as required, all along
the length of the switchgear in a separate sheet steel enclosure.
Operating devices shall be incorporated only in the front of the Switchgear. The Switchgear shall
be provided into distinct vertical sections each comprising:
a) A completely metal enclosed busbar compartment running horizontally.
b) Individual feeder modules arranged in multi-tier formation. It is essential that the
modules are integral multiples of the basic unit size to provide for flexibility in changes, if
any, at site.
c) Enclosed vertical busbars serving all modules in the vertical sections. For safety isolation
of the vertical busbars, insulating barrier with cut-outs shall be provided to allow the
power stab contacts to engage with vertical busbars.
d) A vertical cable alley covering the entire height. The cable alley shall be minimum 200mm
wide for motor control modules and 500mm wide for circuit breaker controlled
modules.
e) A horizontal separate enclosure for all auxiliary power and control buses, as required, shall
be located so as to enable easy identification, maintenance and segrgation from the main
power buses. Tap-off connections from these buses shall be arranged separately for each
vertical section.
Each vertical section shall be equipped with space heaters which may be located in the
cable alley as specified in schedule of quantities.
One metal sheet to be provided between two adjacent vertical sections running to the full
height of the switchgear except for the horizontal busbar compartment. However, each
shipping section shall have metal sheets at both ends.
All equipment associated with a single circuit shall be housed in a separate module
compartment of the vertical section. The compartment shall be sheet steel enclosed on all
sides and the rear, with the withdrawable units in position or removed, except on the cable alley side. A plate cover with a slot to permit wiring connections shall be provided
on the side corresponding to the cable alley. The front of the compartment shall be
provided with a hinged door.
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For dial out type, modules, only the handles of control and selector switches, push
buttons, knobs and cut-outs for lamps and meters shall be arranged on the front doors of
the respective compartments to permit operation without opening the door. On circuit
breaker controlled circuits, protective relays shall be mounted on the front door of the
compartment. All other equipment pertaining to a circuit shall be mounted on the
withdrawable chassis. All cut-outs shall be provided with gaskets for the purpose of
dust-proofing.
Current transformers shall not be directly mounted on the buses. Current transformers on
circuit breaker controlled circuits shall be mounted on the fixed portion of the
compartment.
In breaker compartments, suitable barriers shall be placed between circuit breakers and all
control, protective and indication circuit equipment including instrument transformers.
External cable connections shall be carried out in separate cable compartments for power
and control cables.
After isolation of power and control connections of a circuit, it shall be possible to safely
carry out maintenance in a compartment with the busbars and adjacent circuits live.
The withdrawl chassis shall move on suitable guides and on suitably plated steel or
stainless steel rollers or balls to facilitate easy withdrawal.
Cable alleys shall be provided with suitable hinged doors. It shall be possible to safely
carry out maintenance of cable connections to any one circuit with the busbars and
adjacent live circuits. Adequate number of slotted cable support arms shall be provided
for dressing the cables. All doors shall be provided with concealed type hinges and captive
screws.
The withdrawable chassis housing circuit breakers shall be of the fully drawout type. The
chassis/base plate housing feeder control and motor control equipment not incorporating
circuit breakers shall be of the fully-drawout, or fixed type.
a) Fully Drawout Type
In this type of construction it shall be possible to drawout the withdrawable chassis
without having to unscrew or unbolt any connections to the equipment mounted on the
withdrawable chassis. The power and control drawout type connections shall be of the
stab-in or sliding type. All drawout contracts, including the auxiliary and control wiring
shall be of self-aligning type. b) Fixed Type
In this type of construction all power connections to the equipment mounted on the base
plate shall be of the bolted type. All control circuit connections to equipment mounted on
the base plate shall be carried out through conventional terminal blocks mounted in the
respective base plate. It shall be possible to remove the base plate after
unbolting/unscrewing all the power and control circuit connections to the equipment
mounted on the base plate.
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c) Interchangeability
All identical equipment and corresponding parts including chassis of drawout modules of
the same size shall be fully interchangeable, without having to carry out modifications. For
trouble free interchangeability, the drawout arrangements shall be designed such that
normal dimensional variations are taken care of by self-aligning feature of the modules.
Components and equipment that are not fully interchangeable will be rejected. VENDOR
shall replace all such equipment by fully interchangeable equipment at his cost.
Switchgear shall be designed in such a way that all component equipment and bus bars
operate satisfactorily without exceeding their respective maximum permissible rise in
temperature under ambient temperature conditions prevailing with the switchgear
cubicle, with reference ambient temperature outside the switchgear cubicles.
All dummy cubicles necessary to meet the requirements of this specification shall be
included in the VENDOR's scope.
No equipment/devices associated with a particular circuit shall be mounted in any other
circuit module.
8 Main And Auxiliary Buses
a) Main buses & Tape
Switchgear shall be provided with three phase busbars and neutral.
Busbars shall be of uniform cross section throughout the length of the switchgear.
The busbars shall be made of high conductivity copper alloy of E9IE grade.
Busbars shall be provided with at least the minimum clearances in air as per applicable
standards for a 500V, 3 phase system.
All bus-bars, bus-taps shall be insulated with close fitting sleeve of hard, smooth, dust and
dirt free plastic insulation of high dielectric strength (450 V/mil) to provide a permanent
high dielectric non-ageing and non-tracking protection; imprevious to water, tropical
conditions and fungi. The insulation shall be non-inflammable and self-extinguishing and
in fast colours to indicate phase. The joints shall be insulated in uch a way as to provide
for accessibility of contact bolts for maintenance. The dielectric strength and properties
shall hold good for the temperature range of 0 deg.C to 90 deg.C Busbars shall be adequately supported and braced to withstand the stresses due to the
specified short circuit currents for the associated switchgear. Busbars supports shall be
made of Hylam sheets, glass reinforced moulded plastic material, permali wood or cast
resin.
Separate supports shall be provided for each phase of the busbars. If a common support is
provided for all three phases, antitracking barriers shall be incorporated.
Busbar joints shall be complete with high tensile steel bolts and lock washers and nuts.
Busbars shall be thoroughly cleaned at the joint locations and a suitable contact grease
shall be applied just before making a joint.
b) Auxiliary Buses
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Auxiliary buses for control power supply, space heater power supply or any other specified
service shall be provided. These buses shall be insulated, adequately supported and sized
to suit specific requirements. The material of control power supply buses shall be
electrolytic copper. The material for space heater power supply buses shall be same as
that for the main power buses. Supply transformer(s), auxiliary busbars and necessary
connections to the supply transformers and associated circuits shall be in the VENDOR's
scope.
9 Circuit Breakers
a) Circuit breakers shall be of the airbreak drawout type, mounted along with its
operating mechanism on a wheeled carriage moving on guides, designed to align correctly
and allow easy movements.
- of the shunt trip type.
- provided with an operating mechanism of the type specified.
- provided with mechanically operated targets to show 'Open', 'Closed', 'Service' and
'Test' positions of the circuit breaker.
- provided with mechanical operated, red 'trip' push button, shrouded to prevent
accidental operation.
- provided with locking facilities in the 'Service', 'Test' and 'Isolated', positions. In test
position the breaker will be tested without energising the power circuits. The
breaker shall remain fuly housed inside the compartment in the test position.
- provided with 6 No. and 6NC potential free auxiliary contacts, rated 10A at 240V
A.C. and 1A (inductive breaking) at 220 V D.C.
- provided with 'red', 'green' and 'amber' indicating lamps to show 'closed', 'open'
and 'auto-trip' conditions of the circuit breaker when breaker operation is
controlled by a control switch. b) Circuit breakers shall be provided with the following interlocks.
It shall not be possible to plug-in a closed circuit breaker, or to drawout a circuit breaker in
the closed position.
It shall not be possible to operate a circuit breaker unless it is in the fully plugged-in, test,
or fully isolated position.
c) Circuit breaker closing and trip coils shall be rated for satisfactory operation on a control
supply system indicated in Data Sheet-A.
d) Closing and trip coil shall operate satisfactorily under the following conditions of supply
voltage variation :
Closing coils-85% to 110% of rated voltage.
Trip coils-50% to 110% of rated voltage.
The breakers controlling motors shall operate satisfactory under following conditions :-
i) Direct-on-line starting of the specified motor.
ii) Breaking no load current of the specified motor.
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e) Operating Mechanism
Circuit breaker shall be provided with operating mechanism as specified .
Power operated mechanism shall be of the motor wound spring charging stored energy
type.
The closing action of the circuit breaker shall charge the tripping spring ready for tripping.
Speed of closing of contacts shall be independent of the speed with which the handle is
operated.
All stored energy mechanisms shall be provided with mechanical Indicaters to show the
`charged' and `discharged' conditions of the spring.
Circuit breakers provided with stored energy operating mechanisms shall be provided with
the following interlocks.
i) The circuit breaker shall not close unless the spring is fully charged.
ii) Shocks, vibrations, or failure of springs shall not operate the breaker or prevent intended
tripping.
Power operated mechanism shall be
i) Provided with a universal motor suitable for operation on A.C. and D.C. control supplies
specified in Annexure-A with voltage variation from 85% to 110% rated voltage.
ii) Designed to enable a continuous sequence of closing and opening operation as long as
power is available and at least one opening operation on power supply failure.
iii) Provided with emergency manual charging facilities. 10. Moulded Case Circuit Breaker :
Moulded case circuit breakers shall be made of insulating case and cover made of high
strength, heat resistant and frame-retardant thermosetting insulating material.
The switching mechanism shall be made/quick-break type utilizing a trip free toggle
mechanism. The handle position shall give positive indication of weather the breaker is
ON(top), OFF(down) or tripped (midway). For overload protection, three bimetal magneto-
thermal release and electromagnets releases for short circuit protection to be provided.
The magneto-thermal release shall be variation and direct acting. All releases shall
operate on a common trip bar so that all phases are disconnected in the event when fault
occurs even on only one of them.
The contacts shall be made of silver allow and arc chutes shall be made of de-lon plates.
These plates shall be housed in a vulcanised fibre casing. The arc chutes shall be capable
of quenching the arc rapidly and drawing away the arc from contact tips. The terminates
shall have sufficiently large dimensions to accept links or cable lugs of suitable sizes.
11 Miniature Circuit Breakers (MCB)
a) MCBs shall be hand operated, air break, quick make, quick break type conforming to
applicable standards.
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b) MCB shall be provided with overload/short-circuit protective device for protection under
overload and short-circuit conditions. The minimum breaking capacity of MCBs shall be 3
KA r.m.s. at 415V/220V D.C.
c) MCBs shall be provided with locking facility.
12 Air Break Switches
a) Air break switches shall be of heavy duty, group operated load break, fault make type,
complying with the requirements of applicable standards.
b) The switches shall be capable of withstanding the thermal stresses caused by overloads,
locked rotor and short circuit currents of values associated with protective relay settings
and the let through current of the associated fuse.
c) The switches shall be capable of withstanding the mechanical stresscaused by the peak
short circuit current of value equal of the cut-off current of the associated fuse.
d) Whenever solid links are used for the connections between switches and fuses, such links
shall be fitted with insulated sleeves.
e) All live parts of the switch shall be shrouded.
f) Switch operating handles shall be suitable for padlocking in 'OFF' position.
g) Each switch shall be interlocked with the associated compartment door to achieve the
following interlocks. It shall be possible to open the door only when the switch is in the
'OFF' position. It shall not be possible to close the switch with the door open. Suitable means however shall be provided to intentionally release the interlocks specified
above for making trip setting adjustments and operation tests.
13 Fuses
Fuses generally shall be of the HRC cartridge fuse-link type having a certified repturing
capacity of not less than 80 kv at 440 V. Fuses upto 63A for distribution systems of
medium short circuit levels may be of HRC cartridge screw-cap type, having a certified
rupturing capacity of not less than 46ka at 440 V and 16 KA at 250V DC.
Fuses shall be provided with visible indication to show that they have operated.
Fuses shall preferably be mounted on moulded plastic carriers and shall be complete with
fuse bases. Wherever it is not possible to mount fuses on carriers, fuses shall be directly
mounted on plug in type of bases. In such cases an insulated fuse pulling handle shall be
provided for each size of fuse for each switch board.
14 Motor Starters
a) Contactor
Motor starter contactors shall be of the electromagnetic type rated for uninterrupted duty
as defined in applicable standards.
Main contacts of motor starter contactors shall be of silver plated copper.
Each motor-starter contactor shall be provided with two NO and two NC auxiliary
contacts.
Insulation class of operating coils shall be class B or better.
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Operating coils of contactors shall be suitable for operation from the specified control
supply system.
Contactors shall be of the double break, non-gravity type.
One number spare auxiliary contactor with 4 No./4NC contact along with its coil
completely wired up to the terminal should be provided.
b) Direct-On-Line Starters
Direct-on-line starters shall be suitable for Class AC 3 utilisation category.
c) Reversing Starters
Reversing starters shall comprise forward and reverse contactors, electrically interlocked
with each other.
Reversing starters shall be suitable for Class AC 4 duty.
d) Thermal Overload Relays
Starters shall be complete with a three elements, positive acting, ambient temperature
compensated, time lagged thermal overload relay with adjustable settings. The settings
range shall be properly selected in accordance with the rating of the motor.
Thermal overload relays shall be hand reset type.
`Stop' push button of the starter and hand reset device shall be separate from each other.
Overload relay hand reset push button shall be brought out on the front of the
compartment door.
Overload relay shall be provided with atleast one 'NO' and one 'NC' or one change-over
contact.
15 Current Transformers
Current transformers shall be of the dry type.
Current transformer shall have a short time withstand rating equal to the short time
withstand rating of the associated switchgear for one second.
Unless otherwise specified, the minimum performance requirement of current
transformers are as follows :-
a) Measuring CTs-7.5VA, accuracy class 1.0 and an instrument safety factor of 5.
b) Protective CTs - 7.5 VA, accuracy class 5P and an accuracy limit factor of 10.
Notwithstanding the above it shall be the VENDOR'S responsibility to coordinate the
current transformer burden with the requirements of relays, instruments and leads
associated with that particular current transformer.
Test links shall be provided in both secondary leads of the CTs to easily carry out current
and phase angle measurement tests.
All current transformers shall be earthed through a separate earth link on the terminal
block to permit easy measurement of the current transformer insulation resistance. (CTs
built-in with the thermal relays of the contactors are excluded).
16 Voltage Transformer
Voltage transformers shall be of dry type.
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Unless otherwise specified, the minimum performance requirements of voltage
transformers are as follows :
a) Measuring VTs - 15 VA per phase and accuracy class 1.0.
b) Protective VTs - 15 VA per phase and accuracy class 1.0.
c) Dual purpose VTs - 100 VA and dual accuracy class 1.0/3.0 for metering and
protection respectively. VA is per phase.
All secondary windings of voltage transformers including open delta windings shall be
rated for 110/ 3 V per phase.
Voltage transformers shall have a continuous overvoltage factor of 1.2 and short time
overvoltage factor as follows : 1.5 for 30 seconds in case of effectively earthed. 1.9 for 8 hours in case of non-effectively
earthed system.
Voltage transformers shall be complete with suitable rated primary, secondary and
tertiary fuses. Primary fuses shall have a rupturing capacity equal to the rupturing capacity
rating of the associated switchgear. Fuses shall be provided on each sub circuit.
It shall be possible to replace voltage transformers without having to de-energise the main
bus bars.
The terminals of V.T. secondary and tertiary windings which are required to be connected
to earth shall be earthed by an isolating link without a fuse.
17 Relays
The following clauses shall apply to the protective relays. Single phasing preventers relay
shall be provided when required to protect motor against single phasing. The relay shall
not operate for supply voltage unbalance of + 5% but shall positively operate for supply
voltage unbalance of more than + 5%. The relay shall operate in the event of a single
phase fuse blowing even though the motor c.m.f. in the concerned phase is of the order of
85%.
After sensing single phasing the relay shall operate with a time delay of 2 to 3 sec. The
relay shall not operate for a 3 phase power supply failure. The relay shall be of the hand
reset type with a hand reset push button. Resetting shall be instantaneous and
independent of the adjusted time delay in the tripping of the unit. Visual indication for the
operation of the relay shall be provided.
The relay shall be suitable for application to protect reversible and non-reversible motors.
The relay operation shall be independent of the motor KW rating, the loading conditions
prior to the occurence of the single phasing and rpm of the motor. The relay shall be of the
fail safe type and shall operate to trip the motor when the relay internal wiring is
accidentally open circuited.
Relay shall be -
a) Enclosed in dust proof flush mounting drawout type cases.
b) Accessible for setting and resetting from the front.
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c) Provided with positive acting hand-reset flag indicators visible from the front.
Access to setting devices shall be possible only after the front covers are removed. Access
to resetting devices shall be external to the case.
Auxiliary relays shall be rated to operate satisfactorily between 70% and 110% rated
voltage.
Each relay shall be provided with at least two separate voltage from contacts.
Make and type of relays shall be subject to the EIC approval. 18 Indicating Instruments And Meters
Electrical indicating instruments shall be of minimum 96mm x96mm square size, suitable
for flush mounting.
Indicating instruments shall have provision for zero adjustment outside the cover.
Instrument dials shall be parallex free with black numerals on a white dial.
Ammeters provided on motor circuits shall be provided with a suppressed extended scale
to indicate motor starting current.
Watthour meters shall be of the direct reading electro-dynamometer type complete with
cyclometer type dials and reverse running stops.
19 Indicating Lamps
Indicating lamps shall be :
a) of the filament type and of low watt consumption
b) provided with services resistors
c) provided with translucent lamp covers of colours 'Red', 'Green' and 'Amber' as
required in the control wiring diagrams. Bulbs and lenses shall be easily
replaceable from the front.
20 Control And Selector Switches
Control and selector switches shall be :
a) of the rotary type
b) adequately rated for the purpose intended (Minimum acceptable rating is 10A
continuous at 240V AC and 1A inductive break) 220V DC.
c) provided with escutcheon plates clearly marked to show the positions.
Control switches for circuit breakers shall be provided with pistol grip type handles.
Control switches for circuit breaker control shall be provided with contact
development and sequencing device.
d) Selector switches shall be :of the maintained contact stayput type. Switches in
ammeter circuits shall have make-before-break type contact provided with oval
handles.
21 Push Buttons
Push button shall be :
a) of the momentary contact, push to actuate type rated to carry 10A at 240V
AC and 1A (inductive breaking) at 220V DC.
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b) fitted with self reset, 2 NO and 2 NC contacts.
c) provided with integral escutcheon plates marked with its function.
`Start', `Open', 'Close' push buttons shall be green in colour.
`Stop' push buttons shall be red in colour.
All other push buttons shall be black in colour. `Emergency Stop' push buttons shall be of the lockable in the pushed position type
and shall be shrouded to prevent accidental operation. Key shall not be required
for the operation of the push button.
22 Space Heaters ( if applicable)
Space heaters for switchgear panels shall be :
a) suitable for operation on a supply system as specified
b) provided with single pole MCD with overload and short circuit release
c) provided with thermostats to cut off the heaters at 45 deg.C.
For details for spacing between terminals; clearance between gland plate and first row
terminals; and size of gland plate refer Annexure - B, Table-I, II & III.
23 Cable Terminations
Suitable compression type heavy duty brass cable glands with nuts, rubber sealing ring and
brass washers mounted on a removable and control cables entering the switchgear shall
incorporate built in facilities for earthing the wire armour of cables. Cable glands shall be
plated to avoid corrosion.
Power cable glands and crimping type lugs shall be supplied to suit the cable sizes given in
clause 3. If during course of detailed engineering of the switchgear it is found necessary to
provide more glands or glands of higher size than those envisaged the vendor shall provide
and accommodate the same.
For supporting & clamping cable cores at regular intervals inside the cable alleys, suitable
shutted angles, upto the respective terminal blocks shall be provided.
Necessary crimping type of tinned copper cable lugs for connecting the individual cores to
the respective terminals, shall be provided.
24 Internal Wiring
Control wiring shall be of the rating of 650V and power wiring shall be of the rating of
1100V.
Wiring inside the switchgear shall be carried out with 1100/650 V grade, PVC insulated,
stranded conductor wires. Minimum size of conductor for power circuits is 4 sq.mm
copper or equivalent size aluminium conductor. Control circuits shall be wired with
copper conductor of at least 2.5 sq.mm for CT circuits and 1.5 sq.mm for other circuits, the
number and size of strands shall be 7 of 0.67 mm and 0.5mm diameter respectively.
Engraved identification ferrules, marked to correspond with the wiring diagrams shall be
fitted to each wire. Ferrules shall be of yellow colour with black lettering.
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Wires forming part of a tripping circuit of circuit breaker shall be provided with an
additional red ferrule marked 'T'.
Spare auxiliary contacts of all equipment forming part of the switchgear shall be wired up
to the terminal blocks. Spare and unassigned modules shall be complete with internal wiring.
Wiring shall be terminated on preferably stud type terminal blocks such that the wires are
connected by cable lugs with nuts and washers/lock-nuts.
Not more than two connections shall be made on any one terminal.
25 Terminal Blocks
Terminal blocks (both for power and control circuit) shall be of reputed make specially for
CT and VT circuit. It shall comprise of finely threaded pairs of brass studs of at least 6mm
diameter, links between each pair of studs, washers, nuts and locknuts. The studs, shall be
securely locked within the mounting base to prevent their turning. Insulated barriers shall
be provided between adjacent terminals.
Terminals for circuits with voltage exceeding 125 V shall be shrouded. Terminal blocks
shall be grouped depending on circuit voltage. Different voltage groups of terminal blocks
shall be segregated.
Terminal blocks shall be adequately rated to carry the current of the associated circuit.
Minimum rating of the terminal block is 10A.
Terminals shall be numbered for identification. Engraved white-on-black labels shall be
provided on the terminal blocks, describing the function of the circuit. Where duplication
of a terminal block is necessary it shall be achieved by solid bonding links.
Terminal blocks for CT secondary lead wires shall be provided with shorting and
disconnecting/earthening facilities.
Terminal blocks shall be arranged with at least 100mm clearance between two sets of
terminal blocks.
Control terminals for external connections shall be suitable for terminating at least two
conductors each of 2.5 sq.mm size.
26 Labels
All labels shall comprise white letters one a black background.
Labels shall be made of non-rusting metal or 3-ply lamicoid, or engraved PVC.
Labels shall be properly fixed, with provision to prevent distortion due to expansion.
Size of lettering shall be 6mm.
27 Earthing
Each MCC and LCC shall be provided with an earth bus bar running along the entire length
of the board. Material and size of the earth bus bar shall be as specified in data sheets. At
either end of the earth bus, one (1) clamp type terminal with nuts, bolts and washers shall
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be provided for bolting the main earthing copper conductor of size and material indicated
in data sheets. In case the earth bus is provided near top of the switchgear, one down
comer at either end shall be provided for connection to the main earthing conductor.
Earth busbars shall be supported at suitable intervals.
Positive connection between all the frames of equipment mounted in the switchboard and
earth busbar shall be provided by using insulated copper wires/bare busbars of cross
section equal to that of the busbar, or equal to half the size of circuit load current carrying
conductor, whichever is smaller.
All instrument and relay cases shall be connected to the earth busbar using 1100/650 V
The constructional features of the local push button stations shall be as follows :
a) Metal enclosed, weather-proof suitable for mounting on wall or steel structures. The
enclosure shall be die cast aluminium or sheet metal of 2mm thickness.
b) Dust and vermin proof.
c) Provide a degree of protection of not less than IP:54.
d) Metal parts shall be given tropicalizing treatment as per standards and painted with one
coat of epoxy primer and two coats of light grey epoxy paint.
e) Provided with inscription plates of rear engraved perspex with white letters on black
background. The letter size shall be 6mm.
f) Provided with two earthing terminals suitable for 12 SWG G.I. wire.
g) Provided with removable undrilled gland plate and adequate members of cable glands
for PVC insulated, armoured cable. The cable entry shall be from the bottom.
h) All local push button stations shall have locking facility. The lock switch shall have two
positions "locked" and "unlocked". When in unlocked position the switch shall allow
individual starting of the equipment. Start/stop push buttons provided for local operation
of the equipment shall be provided on the same enclosure and stop rush buttons shall be
locakable in stop position. The lock switch shall be key operated.
Push Buttons
a) The Open/Close/Start push buttons shall be of the momentary contact push to
actuatetype.
b) The stop push buttons shall be stay put type with mushroom knob. c) All push buttons shall be :
i) Fitted with two (2) normally open and two (2) normally closed contacts rated to carry and
break 6 Amps at 415 Volts. (10A at 240 AC).
ii) Provided with integral escutcheon plates marked with its function.
d) 'Open/Close/Start' push buttons shall be green colour.
e) 'Stop' push button shall be red in colour.
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Wiring
The push button stations shall be as follows : Push button station Type-A - Each P.B.,
station shall comprise three push buttons viz. 'OPEN' 'CLOSE' and 'STOP' for control of
reversible motors.
Push button station type B - Each P.B. station shall comprise two push buttons viz. `START'
and 'STOP' for control of non-reversible motors.
Push button station type-C - Each P.B. station shall comprise only one push button i.e.
`STOP' for emergency stop function.
Power - Electricity at specified voltage (415/220V).
29.2 The controls shall be complete with actuators, probes, relays, transformers, wiring,
etc.
Safety controls of chilled water unit shall be as under :
a) Compressor - High/Low pressurestat/manual reset type high
bearing temperature safety.
b) Chiller thermostat - Manual reset type antifreeze.
c) Oil pressure - Differential safety switch with manual
reset button. it should have a time delay relay for
start up of the compressor.
d) Main motor - Thermal relay to avoid overloading of motor &
overheating of winding.Interlocks for refrigeration unit shall be :
a) Flow switches in condenser and chiller lines to prevent compressor starting without water
flow.
b) Oil temperature to be maintained at set point.
c) Condenser and chilled water pumps and cooling tower fans shall be interlocked with
chilling units to prevent operation without pump and cooling tower fan running.
30 Tests
Switchgear shall be subjected to following tests :
a) Temperature rise test on power circuits.
b) Short time current tests on power circuits.
c) Mechanical operation test.
d) High voltage test.
e) Electrical control interlock and sequential operation tests.
f) Verification of wiring as per approved schematic.
Type tests and routine tests shall be carried out on all associated equipment as per
relevant standards.
Certified copies of all type and routine test certificates shall be submitted for the Engineers
approval before despatch of the switchgear.
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31 Drawings And Data
As part of proposal BIDDER shall furnish the following drawings and data :
For each switchgear, overall dimension drawing showing front view, plan, elevation
and cross-section.
All drawings and data sheets shall be annotated in English.
Electrical Cabling Works
CABLES:
1100 Volt Grade XLPE insulated, armoured, sheathed aluminium conductor power / control along with PVC insulated aluminium conductor Armoured cables shall be used for connecting motors.
CABLE GLANDS:
Heavy duty compression type cable gland alongwith the cable lugs shall be used for termination of cables. The cable glands shall be of cadmium plates brass. For all power cables, crimped type copper cable lugs shall be provided.
The cable trays shall be channel type made out of M.S. sheets (slotted) having a minimum thickness of 2mm duly painted. (Cable trays exposed to atmosphere shall be hot dip galvanised). The Clamps used shall be Aluminium with G.I/Cadmium plated nut-bolts. The size of these trays shall be selected considering the number of cables and leaving minimum 20% spare area. The arrangement of cables in these trays shall be in Single Tier Formation.
Sharp bending of the cables shall be avoided. The radius for bending PVC insulated cable and sheath armoured cable shall not be less than 10D where "D" overall diameter of the cable. Wherever cable rises from concrete trenches, these shall be taken in G.I. pipes of suitable size. The Contractor shall make sure that the 40% area of pipe shall be free after the cable is laid.
WIRE SIZES
Final connection to the equipment shall be through flexible wiring enclosed in galvanised flexible conduit rigidly clamped at both ends. An isolator shall be provided near each motor/equipment wherever the motor/equipment is separated from the supply panel through a partition barrier or through ceiling construction. P.V.C. insulated single strand hard drawn copper conductor wires shall be used inside the control panel for connecting different components and all the wires inside the control panel shall be neatly dressed and plastic beads shall be provided at both the ends for easy identification. All the wires shall be suitably sized for motor duty.
EARTHING
Main power upto the Electrical panels in Plant rooms shall be provided by THSTI. All necessary copper and aluminium ground industrial earthing shall be in the scope of the turnkey contractor. Each panel shall be earthed properly as per B.O.Q and specifications. All the motor, Pumps, MCC, control devices etc. shall be double earthed to the panel. All three phase motors/equipment shall be earthed with two independent earth conductors as per the requirement of Indian Electricity Rules and Regulation - 1956.
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DRAWINGS
Shop drawing for control panel and wiring of equipment showing the route of conduit/cables shall be got approved by the Consultant/Architect before starting the fabrication of panel and starting the work.On completion four sets of completion/"As installed" drawings incorporating all details like conduit routes, number of wires in conduit, location of panels, switches, junction/pull boxes and cable route etc. shall be furnished by the Contractor.
TESTING
Before commissioning of the equipment the entire Electrical Installation shall be tested in accordance with code of Practice IS:732-1963 (Revised) and test report furnished by a qualified and authorised person. The entire electrical installation shall be got approved by Electrical Inspector and certificate from Electrical Inspector shall be submitted. All tests shall be carried out in presence of Consultant/Architect.
Painting
All sheet steelwork shall undergo a process of degreasing, pickling in acid, cold rinsing, phosphatising passivating and then sprayed with a high corrosion resistant primer. It shall then be baked in an oven. The finishing treatment shall be by application of synthetic enamel paint of approved shade.
Mode of Measurement
1 General
This specification covers measurement of various items/materials at site.
2 Unit Prices in the Schedule of Quantities
The item description in the Schedule of Quantities is in the form of a condensed resume.
The unit price shall be held to include every thing necessary to complete the work covered
by this item in accordance with the specifications and drawings. The sum of all the
individual item prices shall represent the total price of the installation ready to be handed
over.
The unit price of the various items shall include All equipment, machinery, apparatus and
materials required as well as the cost of any tests which the consultant may request in
addition to the tests generally required to prove quality and performance of equipment.
All the labour required to supply and install the complete installation in accordance with
the specifications.Use of any tools, equipment, machinery, lifting tackle, scaffolding
ladders etc. required by the contractor to carry out his work. All the necessary measures to
prevent the transmission of vibration.
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The necessary material to isolate equipment foundations, from the building structure,
wherever necessary and suggested by the Engineer.
Storage and insurance of all equipment apparatus and materials.
The Contractor's unit price shall include all equipment, apparatus material and labour
indicated in the drawings and/or specifications in conjunction with the item in question, as
well as all additional equipment, apparatus, material and labour usual and necessary to
complete the system even though not specifically shown, described or otherwise referred
to.
3 Measurements of Sheet metal ducts, grilles/diffusers, etc.
a) Sheet Metal Ducts
All duct measurements shall be taken as per actual outer duct surface area including
bends, tees, reducers, collars and other fittings. Gaskets, nuts, bolts vibration isolation
pads, vanes are included in the basic duct items of the B.O.Q.
The unit of measurements shall be the finished sheet metal surface area in metre squares.
No extra shall be allowed for overlaps. All the guide vanes, deflectors access panels, splitter dampers within the duct work shall
be considered as part of the duct and nothing will be paid extra on this account.
The unit duct price shall include all the duct hangers, supports and `Hilti' metallic fasteners
as well as any materials and labour required to complete the duct frame.
b) Box Dampers
Box dampers wherever shown or required in ducts shall be measured as per finished
inside cross-sections and paid as per the calculated are in sq.m.
c) Grilles/Diffusers
All measurements of grilles/diffusers shall be the nominal outlet size excluding the outer
flanges.
The square or rectangular grilles/diffusers shall be measured in plain sq.m.
All round diffusers shall be measured by their diameters in centimetre.
All linear diffusers shall be measured as per actual length in meters.
4 Measurements of Piping, Fittings, Valves, Fabricated Items
a) Pipe
(Including Water Piping, Oil Piping, L.P. Gas Piping, Air Piping, Vacuum Piping, etc.)
All pipes shall be measured in linear meter (to the nearest Cm.) along the axis of the pipes
and rates shall be inclusive of all fittings e.g. tees, bends, reducer, elbows, hanger support
bracket, etc. Deduction shall be made for valves in the line.
The rate quoted shall be inclusive of cutting holes, `Hilti' metallic fasteners and inclusive of
all items as specified in specifications and Schedule of Quantities.
Rates quoted shall be inclusive of providing and fixing vibration pads and wooden pieces,
wherever specified or required by the Engineer-in-Charge.
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Flexible connections, wherever required or specified shall be measured as part of straight
length of same diameter, with no additional allowances being made for providing the
same.
The length of the pipe for the purpose of payment will be taken through the centre line of
the pipe and all fittings (e.g. tees, bends, reducers, elbows, etc.) as through the fittings are
also presumed to be pipe lengths. Nothing extra whatsoever will be paid for over and
above the fittings. For valves and flanges, section 1.16.3.2 below applies:
b) Valves and Flanges
All the C.I. and G.M. valves shall be measured according to the nominal size in mm and
shall be measured by number. Such valves shall not be counted as part of pipe length
hence deduction in pipe length, will be made wherever valves occur. All gate and globe valves shall include two nos. of flanges and two numbers 150 mm long
M.S. nipples, with one side threaded matching one of the valves, and other welded to the
M.S. slip-on- flanges.
Rate for all valves shall also include the necessary number of bolts, nuts and washers,
3mm thick insertion gasket of required temperature grade companion flanges and all
items specified in the specification.
The rates quoted shall be inclusive of making connections to the equipment, tanks, pumps,
etc. and the connection made with an installed pipe line shall be included in the rates as
per the B.O.Q.
c) Structural Supports
Structural supports including supports fabricated from pipe lengths for pipes shall be
measured as part of pipe line and hence no separate payment will be made. Rates shall be
inclusive of hoisting, cutting, jointing, welding, cutting of holes and chases in walls, slabs or
floors, painting supports and other items as described in specifications, drawings and
schedule of quantities or as required at site by Engineer-in-Charge.
d) Copper Connections for Fan Coil Units
Copper connection assembly for making connections to the fan coil units shall be
measured, as part of the fan coil unit price and shall include brass flare nuts, brass tees,
brass reducers, fittings, fixing of automatic 3 way valve, making connections and leak
testing, complete assembly as per specifications and drawings. Nothing extra shall be
payable on account of any variation in the length of copper pipe.
5 Painting
Painting of all pipes, supports, valves and fittings shall be included with the cost of these
items. Nothing extra shall be paid for this work. Painting of grilles/diffusers, tanks and
equipment wherever required shall be in the cost of these items.
6 Insulation
Measurement of insulation for vessels, piping, equipment and ducts shall be made over
the bare un insulated surface area of the metal.
a) Pipes
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The measurements for insulation of piping shall be made in linear meters through all
valves, flanges, and fittings. Pipes/bends shall be measured along the centre line radius
between tangent points. If the outer radius is R1 and the inner radius is R2, the centre line
radius shall be measured as (R1+R2)/2. Measurement of all valves, flanges and fittings
shall be taken in running metre of pipe line as if they are also pipe lengths. Nothing extra
over the above shall be payable for insulation over valves, flanges and fittings in pipe
ine/routings. Fittings that connect two or more different sizes of pipe shall be measured as
part of the larger size. b) Ducts
The measurements for insulation of ducts shall be made in actual square meters of bare
uninsulated duct surface.
In case of bends the area shall be worked out by taking an average of inner and outer
lengths of the bends. Measure-ments for damper, flanges, fittings shall be for the surface
dimension for the connecting duct. Nothing extra over the above shall be payable for
insulation over dampers, flanges and fittings in duct routing.
c) Vessels
The area of standard dished and flat ends of vessels shall be measured as the uninsulated
body of the shell. Areas for other shapes shall be the actual calculated area. There shall be
no deduction or additions for nozzles, handle ribs, dampers, expansion joints etc. all
projections on vessels or tanks shall be measured separately as pipe/duct.
d) Accessories Insulation
The unit of measurement for accessories such as expansion tank, pumps, chiller heads etc.
shall be of uninsulated area in square meters. In case of curved or irregular surfaces,
measurements shall be taken along the curves. The unit insulation price shall include all
necessary adhesives, vapour proofing and finishing materials as well as additional labour
and material required for fixing the insulation.
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(D) BMS Controls & SECURITY SYSTEM
General :
Building Management System envisaged to monitor and control of HVAC System, Life Safety System (LSS) which consist of Surveillance System (CCTV), Fire Detection & Fire Monitoring, Fire Clean Gas Suppression System (For BSL 3 lab area only) & Water Sprinkler suppression system for all other facility area System (FAS), and Access Control System
1. Following are the sub-systems shall be monitor and control from BMS system:
2. Heating Ventilation and Air Conditioning (HVAC) Monitoring & Control.
3. Integration of BMS with Access Control, Fire Alarm system, CCTV,
3.1 The various controls listed below shall be electrically operated and generally comply with the specifications listed below:
3.2 In case of low voltage controls necessary step down transformers shall be provided with each control as required.
4. Chilling Unit Control:
The Chilling machines controls shall be generally standard as per the selected
manufacturer standards.
5. Air Handling Unit and Exhaust Air Unit controls:
5.1 Building Management System addressable type for hassle free automatic operation for maintaining desired BSL 3 facility laboratory internal conditions like Temperature, Pressure and Humidity with required accuracy.
5.2 3- way motorized Valve with actuator for AHU manifolds :
The motorized water valve shall be globe type and consist of CI/gunmetal valve body
with SS trim and equal percentage of flow characteristics, modulating motor and linkage.
The valve shall be of 3 way mixing type. 5.3 The water pressure gauges shall be of robust construction 100 mm dial of suitable range
and occupancy range.
5.4 The thermometers shall be mercury filled industrial stem type with metal casing and threaded fixing arrangement.
NOTE: REFER B.O.Q SECTION FOR DETAILED SPECIFICATION & SCOPE
( E ) Fire detection, address & suppuration system
SCOPE OF WORK:
1.1 Work under this section shall consist of furnishing all labour, materials, equipment and appliances necessary and required to completely install electrically operated and diesel driven fire pumps, wet riser, fire hydrant system/fire extinguishing as required by the drawings and specified hereinafter or given in the Bill of Quantities.
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1.2 Without restricting to the generality of the foregoing, the work shall include but not limited to the following:-
1.2.1 Fire Pumps, Motor, Engine and Accessories:
a) Electrically operated and diesel driven fire fighting pumps with motors, base
plate and accessories. b) Pressure gauge with isolation valves. c) M.S./Galvanized Pipes, fittings, valves, suction strainers, suction & delivery headers
&accessories d) Foundations, vibration eliminator pads and foundation bolts. e) Pressure vessel, pressure switches etc.
1.2.2 Fire Hydrant System:
a) Piping for wet riser/hydrant systems. b) Fire Hydrant valves, canvas hose pipes, hose reels, hose cabinets, connections to fire mains. c) Isolation & non-return valves, pipe supports/welding/Fire Brigade inlet and accessories.
1.2.3 Fire Sprinkler System:
a) Piping for sprinkler systems. b) Fire Alarm control valves/Installation Control Valve (ICV) c) Sprinkler heads, Spare Sprinkler. d) Inspection & Testing assemblies.
1.2.4 Hand Appliances /Fire Extinguishers: Supply and installation of fully charged and tested fire extinguishers hand appliances water CO2, foam, dry chemical powder type, ABC stored pressure type, CO2 gas cartridge type as required by these specification and drawings. 2.0 HYDRANT SYSTEM DESCRIPTION:
2.1 The Hydrants System shall consist of one main electric pump of capacity as per
BOQ with suitable Motor, standby diesel engine driven pump of capacity as per BOQ and jockey pumps of capacity as per BOQ with suitable Motor. An underground tank for Hydrants & Sprinkler System of required capacity as per NBC for this type of project has been provided. The system shall be complete with all required accessories including valves, strainers, special fittings, instrumentation, control panels and any other components required to complete the system in all respects.
2.2 The Hydrant system shall be kept pressurized all the times.
2.3 In the event of fire when any of the hydrant valves in the network is opened, the resultant fall in the pressure shall start the jockey pump first through pressure switch automatically. In case jockey pump fails to maintain the pressure hydrant pump shall start at the preset pressure. In case of further drop in pressure the diesel standby pump shall start.
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2.4 The hydrant risers shall be terminated with air release valve at the highest points
to release the trapped air in the pipe work.
2.5 To provide for an air cushion for counteracting pressure surges/ water hammer, an air vessel shall be furnished in the pump room near the fire pumps. The air vessel shall normally be kept partly full of water.
2.6 One No. four way Fire Brigade Inlet Connections shall be provided for filling of
Underground Fire tank in case of emergency and in addition one no. two way Fire
Brigade connection shall be made to internal Fire riser in case fire pumps fail to
start.
3.0 SPRINKLER SYSTEM DESCRIPTION:
3.1 The automatic sprinkler system will be installed to protect the entire building with
permitted exception e.g. electrical switch room, power transformer, DG room and
AC Plant room as identified. There is a separate sprinkler pump of capacity as per
BOQ in the pump house to be provided and other than that, Hydrant Pump and
Diesel Engine shall also support the sprinkler system.
3.2 The Sprinkler System shall be fed both from an underground tank and also from the
overhead tank.
3.3 Installation control valve shall be provided for alarming in case of fire.
Installation control valve comprising of main stop valve, alarm valve with
accessories, strainer and water motor gong.
3.4 For the sprinkler system the building shall have a riser of 150 mm dia, tapped on
each floor to feed the sprinkler system. On each floor, at the tapping from the
sprinkler riser, there shall be butterfly valve of suitable diameter and flow switch.
The flow switch shall be connected to the Annunciation Panel through electrical
cables.
4.0 FIRE PUMPS, MOTORS, ENGINE AND ACCESSORIES:
4.1 General:
4.1.1 The pumps shall be single stage/multistage/centrifugal type designed for continuous
operation and shall have a continuously rising head characteristic without any zone
of instability and shall confirm to IS: 1520 . 4.1.2 Pumps (excluding the jockey pump) shall be able to operate sequentially. The head
vs. capacity, input power vs. capacity characteristics, etc. shall match to ensure load
sharing and trouble free operation throughout the range.
4.1.3 In case of accidental reverse flow through the pump the driver shall be capable
of bringing the pump to its rated speed in the normal direction from the point of
maximum possible reverse speed.
4.1.4 The Pump with motor, base plate, coupling device and coupling guard shall be
coupled at the work of the manufacturer. 4.1.5 The otor shall have a 15% margin of power rating over the rated pump input power.
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4.1.6 The pumps shall be capable of delivering a minimum of 150 percent of rated
capacity at a total head of not less than 65% of the total rated head. The total shut-
off head shall not exceed 120 percent of total rated head on the pump. 4.1.7 The pump shall be tested at the factory and test curve shall be submitted
showing the performance and horse power requirement based on this test before
final acceptance.
4.1.8 Contractor shall provide necessary test certificates, type test certificates, technical
data sheets performance curves and NPSH curves of the pumps, dimension detail,
foundation detail from the manufacturer while submitting data sheet for approval. 4.1.9 Pumps coupled with motor or engine on a common platform shall perform
smoothly without any excessive noise or vibration.
4.1.10 Each pump shall be provided with a plate giving, in the case of centrifugal
pumps, the delivery head, capacity and the number of revolutions per minute,
and in the case of reciprocating pumps, the diameter of the steam cylinders and
water plungers and the length of the stroke, as also the ratios of the effective
aggregate areas of the suction and the delivery valves to the area of the water
plungers.
4.2 Pump:
4.2.1 The pump shall be horizontal /vertical type, as described in the schedule of quantities.
4.2.2 The impeller shall be secured to the shaft and shall be retained against circumferential
movement by keying, piping or lock rings. 4.2.3 All screwed fasteners shall tighten in the direction of normal rotation.
4.2.4 Pump shall be provided with approved type of mechanical seals.
4.3 Pumps Casing:
4.3.1 The casing of horizontally /vertically pumps shall be hydrostatically tested to 1.5 times the
maximum working pressure but in no case less than 250 PSI.
4.3.2 Pressure classification of flange connections shall correspond to casing working pressures.
4.3.3 Casing material shall be close grained, accurately machined, cast-iron, and
precision manufactured for best performance and long-term duty and fitted with
gunmetal wearing ring.
4.3.4 Water discharge diffusers shall be included to reduce radial torque to impellers.
4.4 Wearing Ring:
4.4.1 Wearing rings shall be suitable for an individual application. Rings shall be
replaceable, and positively keyed to prevent rotation.
4.5 Bearing:
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4.5.1 Bearings shall be heavy-duty ball bearings with a minimum average life of 100,000
hours. The bearings shall be self-sealed, and housed in malleable-iron housing
aligned to bearing bracket by means of large precision registers. Bearings shall
be removable without dismantling any rotating element or pumps.
4.6 Impeller:
4.6.1 Impeller shall be one-piece, phosphor bronze, and the bush of gun metal. The
impeller shall be hydraulically and dynamically balanced.
4.6.2 Impellers of pumps shall be fully enclosed suction type and hydraulically balanced.
4.6.3 Impellers shall be accurately keyed to the shaft and positioned axially by shaft sleeves
and separate snap rings.
4.6.4 Impellers shall be fully protected against damage from reverse rotation.
4.7 Pump Shaft-Motor Shaft Coupling:
All shafts shall be of stainless steel & shall be accurately machine and the shaft shall be connected with adequately sized flexible couplings of suitable approved design. Necessary guards shall be provided for the couplings.
4.8 Base Plate:
A common base plate mounting both for the pump and drive shall be provided. The base plate shall be rigid construction, suitably ribbed and reinforced.
Base plate and pump supports shall be so constructed and the pumping unit so mounted as to minimize misalignment caused by mechanical forces such as normal piping strain, hydraulic piping thrust etc.
4.9 Vibration & balancing:
The rotating elements shall be so designed to ensure least vibration during start and throughout the operation of the equipment. All rotating components shall be statically and dynamically balanced at workshop.
4.10 Installation:
Installation of the Fire Fighting Pump set shall be carried out exactly as per manufacturer recommendation.
4.11 Foundation:
The foundation of Fire Fighting Pumps & Electrical motor shall be constructed as per the requirement/recommendation of manufacturer of Fire Fighting Pumps / motor / Diesel Engine.
4.12 Anti-vortex Plates:
Anti-vortex plates shall be installed at the end of the Fire Pump suctions inside tanks.
4.13 Instruction Manual & Tools/Spares:
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A comprehensive instruction manual shall be provided by the contractor indicating detailed requirements for operation, dismantling and periodic operation and maintenance procedures.
5.0 ELECTRIC MOTORS:
5.1 Electrically driven pumps shall be provided with totally enclosed fan cooled induction
motor. The motor shall be full load duty & shall be capable of handling the required starting torque of the pumps. Speed of motor shall be compatible with the speed of the pump.
5.2 Motors shall have a dust tight construction with suitable means of breathing.
5.3 All Components shall be of adequate mechanical strength and robustness and shall be
constructed of metal unless otherwise approved.
5.4 The rating and design shall conform to (IS : 325) specification.
5.5 The motors shall be wound for Class-F insulation and the winding shall be vacuum
impregnated with head and moisture resisting varnish and glass wool insulated to withstand tropical conditions.
5.6 Two independent earthings points shall be provided on opposite sides of the motor
for bolted connections.
5.7 415 Volt power terminals shall be suitable for receiving 1.1 KV grade armoured
power cables.
5.8 The cable boxes and terminations shall be designed to enable easy disconnection and
replacement of cables. 5.9 Provide other specific requirements required by governing energy conservation codes.
6.0 DIESEL ENGINE:
6.1 General:
6.1.1 The engine rating shall be decided considering the de-rating factors which are based on
Site conditions as per BS: 5514 /BS: 649 /IS: 1601 /IS: 10002.
6.1.2 The diesel engine shall be of multi cylinder type four/six stroke cycle with mechanical
(airless) injection, cold starting type.
6.1.3 The Engine shall be turbo-charged and water cooled.
6.1.4 The Engine shall be capable of operating continuously on full load at the site elevation for a
period of 12 hours and no major overloads before 300 hours of operation.
6.1.5 The Engine shall be provided with an adjustable governor to control the Engine speed
within 10% of its rated speed under any condition of load upto the full load rating. The governor shall be set to maintain rated pump speed at maximum pump load.
6.1.6 The Engine shall be provided with an in-built tachometer to indicate R.P.M. of the Engine.
6.1.7 Engine, after correction for altitude and ambient temperature, shall have bare engine horse power rating equivalent to the higher of the following two values :-
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a) 20% in excess of the maximum brake horse-power required to drive the pump at
its duty point.
b) The brake horse power required to drive the pump at 150% of its rated discharge.
6.1.8 The coupling between the Engine and pump shall allow each unit to be removed without disturbing the other.
6.1.9 The engine shall be designed with regard to ease of maintenance, repair, cleaning and
inspection.
6.1.10 All parts susceptible to temperature changes shall have tolerance for expansion and
contraction without resulting in leakage, misalignment of parts or injury to parts.
6.2 Starting:
6.2.1 The engine shall be capable of both automatic and manual start. Generally the engine
shall start automatically, but in case of the auto-start system failure the engine shall be capable of manual start.
6.2.2 Provision shall be made for two separate methods of Engine starting viz.
a) Automatic starting by means of a battery powered high torque D.C. electric starter
motor incorporating the axial displacement type of pinion, having automatic repeat start facilities initiated by a fall in pressure in the water supply pipe to the hydrant installation.
b) Manual starting by
c) Electric Starter motor.
Note: The starter motor used for automatic starting may also be used for manual starting
provided there are separate batteries for manual starting.
6.2.3 Engine shall be able to start without any preliminary heating of combustion chamber,
manual cranking mechanism shall also be provided. All controls/mechanisms, which have to be operated in the starting process, shall be within easy reach of the operator.
6.2.4 The high torque D.C motor charged by battery shall initiate automatic start of diesel
engine. The battery shall hold adequate retainable charge to provide the starting of the diesel engine. Starting power will be supplied from storage batteries. The battery capacity shall be adequate for ten consecutive starts without recharging with a cold engine under full compression. Battery shall be lead acid type of 12 V, 180 Ah capacity.
6.2.5 The battery banks shall be used for no other purpose other than starting of the engine and
shall be fully charged at all times with provision for trickle & boost chargers. After start of the engine the charger shall be disconnected. The battery being fed from the engine alternator.
6.3 Governing System:
6.3.1 The engine shall have a speed control device, which will control the speed under all
conditions of load.The governor shall be suitable for operation without external power supply.
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6.3.2 The Governor shall offer following features:
6.3.2.1 An adjustable governor to regulate engine speed within a range of 5% between shut-off and maximum load conditions of the pumps. The governor shall be set to maintain rated pump speed at maximum pump load.
6.3.2.2 An over speed shutdown device to shutdown the engine at speed approximately 20%
above rated engine speed with manual reset, so that the automatic engine controller will indicate an over speed signal until the device is manually reset to normal operating position.
6.4 Fuel System:
6.4.1 The Engine fuel oil shall be of quality and grade specified by the Engine manufacturer.
6.4.2 The diesel engine shall be suitable to run on High Speed Diesel (HSD), the tank provided
being enough to hold the volume required for 8 hours (minimum) continuous operation. The tank shall be of MS sheet of 3.0 mm thickness.
6.4.3 The fuel tank shall be of welded steel construction to relevant Indian Standard. The
tank shall be mounted above the Engine fuel pump to give gravity feed otherwise recommended by the manufacturer. The tank shall be fitted with an indicator showing the level of the fuel in the tank.
6.5 Cooling System:
6.5.1 The engine shall be water cooled with cooling water drawn from the discharge side of
the pump and with pressure reducing valve, strainer and all necessary accessories.
6.5.2 A heat exchanger, the raw water being supplied from the fire pump discharge (taken
off prior to the pump discharge valve) via a pressure reducing device, if necessary, to limit the applied pressure to a safe value as specified by the engine manufacturer. The raw water outlet connection shall be so designed that the discharged water can be readily observed. The water in the closed circuit shall be circulated by means of an auxiliary pump driver from the engine and the capacity of the closed circuit shall not be less than that recommended by the engine manufacturer. If the auxiliary pump is belt driven there shall be multiple belts so that should half of the belts break, the remaining belts shall be capable of driving the pump.
6.6 Tachometer:
A tachometer shall be provided to indicate revolutions per minute of the engine.
6.7 Oil Pressure Gauge:
The engine shall be provided with oil pressure gauges indicating lubricating oil pressure.
6.8 Temperature Gauge:
The engine shall be provided with a temperature gauge to indicate cooling water temperature.
6.9 Automatic Control Wiring:
All connecting wires for automatic controllers shall be harnessed or flexibly enclosed, mounted on the engine and connected in an engine junction box to terminals numbered to
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correspond with numbered terminals in the controller, for ready wiring in the field between the two/sets of terminals.
6.10 Signal for Engine Running and Crank Termination:
The engine shall be provided with a speed sensitive switch to signal engine running and crank termination. Power for these signals shall be taken from a source other than the engine generator.
6.11 Engine Exhaust Pipes:
The exhaust pipe shall be galvanized steel pipe and sized in accordance with the manufacturer’s recommendations. The exhaust pipe shall be insulated with 50 mm of fibreglass with 1 mm thick aluminium sheet cladding for its entire length.
A stainless steel flexible connection shall be provided between the engine exhaust outlet and the exhaust pipe. An exhaust silencer shall be provided as required to satisfy the acoustic requirements.
6.12 Battery Charging:
The means of charging the batteries shall be by a 2-rate trickle charger with manual selection of boost charge and the batteries shall be charged in position. Where separate batteries are provided for automatic and manual starting, the charging equipment shall be capable of trickling charging both the batteries simultaneously. Voltmeter shall be provided to enable the state of charge of the batteries to be determined.
6.13 Installation:
Installation of the Diesel Engine shall be carried out exactly as per divertion of engineer – in - charge.
6.14 Foundation and Anti Vibration Mounting:
6.14.1 Foundation :
The foundation shall be constructed as per the divertion of engineer – in – charge/ Manufacturer.
6.14.2 Anti Vibration Mounting :
Suitable vibration mounting duly approved by the authorised representative shall be employed for mounting the unit so as to minimise transmission of vibration to the structure. The isolation efficiency achievable shall be clearly indicated.
6.15 Accessories:
6.15.1 The engine shall be mounted on a base plate of fabricated steel construction. Adequate
access shall be provided to the big end and main bearing, camshaft and governor drives, water jackets etc.
6.15.2 The engine shall be provided with inlet filter and silencer, outlet muffler, expansion joints,
dampers etc. as necessary for efficient operation. Intake air shall be taken from inside the building in which the engine is located, but the exhaust shall be discharged into the air at location as desired by the employer.
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6.15.3 The contractor shall provide all accessories, fittings and fixtures necessary and required for a complete operating engine set.
6.16 Instrumentation:
6.16.1 The diesel engine shall be provided with instrumentation as under:-
6.16.1.1 Engine Starting System:
It shall be with lead acid batteries heavy duty of minimum 180 AH capacity, higher if so required by the engine manufacturer, 2 Nos. and self-starter switch.
6.16.1.2 Engine Instruments and Standard Control Panel:
It shall be complete with required connections and comprising of following items:
a) Inlet and outlet water temperature gauge (dial type) with key.
e) Auto /Manual Selector switch shall also be provided.
f) Manual: the Engine can be manually operated by means of Push Buttons.
g) Start Stop and failure control device.
h) Start key for manual starting.
i) Stop Push Button for manual stopping of engine.
j) Starting failure indication by lamp and horn unit.
k) Engine temperature control with failure indication by red lamp indication.
l) Engine temperature ‘very high’ indication by audio alarm and automatic stopping of engine.
m) Engine set is ‘running’ and ‘in operation’ indication by green lamp. n)
Mains supply available indicated by yellow lamp.
o) Push Button for Audio Alarm reset.
p) Push Button Failure indication by lamps.
q) The Panel shall also have an auto/manual/test/off selector switch.
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7.0 CODES AND STANDARDS FOR PUMPS, MOTORS AND DIESEL ENGINE:
7.1 PUMPS:
7.1.1 The pumps shall conform to the standards and codes as given below:
a) IS: 1520 Horizontal centrifugal pumps for clear, cold and fresh water.
b) BS: 599 methods of testing pumps.
c) PTC: 8 ASME Power test Codes – Centrifugal Pumps.
7.2 MOTOR:
7.2.1 The following codes shall be applicable for the motor :-
a) IS: 325 Induction motor, three – phase.
b) IS: 900 code of practice for induction motors, installation and maintenance.
c) IS: 7816 guide for testing insulation resistance of rotating machines.
d) IS: 4029 guide for testing three phase induction motor. e) IS: 3043 code of
practice for earthing.
f) Further to those stated above, the design, manufacture, installation and performance of motors shall conform to the latest Indian Electricity Act and Indian Electricity Rules.
8.0 M.V. PANEL AND SUB PANELS
8.1 Scope
8.1.1 The scope of this section covers design, manufacture, supply/installation, testing and
commissioning of Power Distribution Panels including ACBs/ MCCBs/ MCBs rated upto 1000 volts. The panel should conform to IS 8623 and other relevant code.
8.2 Electrical characteristics of Factory Built Assemblies: 8.2.1 When the components are mounted in the enclosures, appropriate derating factors shall
be allowed for the effect of other components and interconnections.
8.3 Enclosures of factory Built Assemblies:
8.3.1 Unless otherwise indicated, enclosures shall provide a minimum degree of protection of IP 42
8.3.2 Door shall have adequate fastenings with provision for locking in the closed position.
8.3.3 Fixing holes for equipment may be inside or outside the enclosure.
8.3.4 Earthing terminals shall be fitted to each enclosure, suitable for internal and external connection to enable the exposed conductive parts of the protective conductor.
8.3.5 Where the enclosure has a painted finish, provision shall be made for earthing terminal to
be electrically connected to the enclosure without need to remove any paint from ferrous metal.
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8.3.6 Cable terminals shall be suitable for the number, size and type of cables as indicated.
Adequate spacing shall be allowed for spreading of cable tails to avoid stress on the insulation or terminals; if necessary, extension boxes shall be fitted to standard enclosures. Terminals for neutral conductors for three phase and neutral circuits shall be the same size as for phase conductor, except where reduced section neutral cable cores are indicated.
8.3.7 2 Nos. of Gland Plates for cable entry made of 3 mm thick CRCA sheet, complete with
required Knock Outs shall be provided at top or bottom with number and size of knock outs to be sufficient for the incoming and outgoings as specified in the panel details as per site conditions.
8.3.8 Metallic enclosures for location within buildings shall have a stove dried painted
finish of the manufacturer’s standard colour, unless otherwise indicated. Ferrous parts shall be degreased and adequately rust protected immediately prior to painting.
8.3.9 The compartment door shall be interlocked mechanically with the switch so that the door cannot be opened unless the switch is in OFF position. Means shall be provided for releasing this interlock at any time.
8.3.10 All MCCBs shall be provided with Rotary handle on the front door unless
specifically mentioned otherwise.
8.4 Construction:
8.4.1 Basic Structure:
a) All electrical panels will be fabricated from 2mm thick CRCA sheet steel for robust construction properly supported with angles and channels.
b) Panels shall be totally enclosed, dust and vermin proof, fully compartmentalized, cubical
design modular construction. The covers and doors shall be very well gasketted with neoprene rubber gaskets so as to obtain dust proof enclosure.
c) The cubicle will be floor-mounted type unless specified otherwise.
d) The cabinet will be welded construction and not of jointing construction.
8.4.2 Doors:
a) Door shall be made of 2mm sheet steel, with foamed seal polyurethane gasket, square section under tabular frame with punching in DIN pitch pattern.
b) The door will be provided with concealed hinges and panel locks of superior quality. The hinges will be union joint type to facilitate easy removal of the doors when necessary. Neo-prene gaskets shall be provided beneath all doors and corners and also between adjacent sections, and on gland plates.
c) The doors will be provided in a similar fashion as generally provided for the outdoor cabinet,
where water cannot enter in the cabinet from the door.
d) The door will be provided with strengthening arrangement to avoid wobbling and distortion.
e) Wherever the doors are opened on horizontal hinges, an arrangement will be provided to latch the doors in an open condition for inspection of the wiring.
f) Generally meter, relays push buttons, signal lamps and control components will be
provided on a separate compartments for in-comer feeders only.
g) The circuit components will be mounted on sectionalized 3 mm thick CRCA sheet with suitable threading in the sheets to facilitate easy maintenance, future addition etc..
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h) The panels shall be manufactured with separate busbar chamber isolated from unit feeder
chambers and cable alleys, to provide extra safety for working personnel.
8.5 Dimensions:
8.5.1 The height of the panel will be as per the drawing but not be more than 2000 mm. Depth of the panel will not be less than 300 mm and width of the panel will be given in the particulars of panel specifications or as per actual site conditions. Shop drawings shall have to be approved by the Engineer-in-charge before fabrication is taken up by hand.
8.6 Adaptor Chambers for all cable entries:
8.6.1 Wherever necessary, sheet metal adaptor chambers with angle frame and minimum depth of 300 mm will be supplied with panel. All the covers of adaptor box will be removable type. The box can be mounted horizontally or vertically. The pattern of cable entry, wherever not specified will have to be
confirmed by the manufacturer/ Supplier/ Contractor in writing after placement of order. The cable entry shall be as per actual site conditions and approved.
8.7 Powder Coating Treatment:
8.7.1 The cubicle will undergo the process of Powder Coating treatment to the satisfaction of the Engineer-in- Charge.
8.7.2 The panels shall be treated for degreasing, derusting, phosphating and passivating
by adopting seven/nine tank process. As per the Indian Standard Specification. Power coating process with a final coating shall be of 80-120 microns.
8.7.3 The painting of panel shall be carried out in a dust free atmosphere then baked in oven.
8.8 Busbars:
8.8.1 The bus bars will be of Aluminium with a current density of 1.0 Amp per Sq. mm. The busbars will be insulated with heat shrinkable sleeves and properly supported. All live parts shall be shrouded by means of acrylic / steel /FRP sheets to ensure no accidental contact with live parts during maintenance and provide simultaneous inspection. The busbar supports will be designed to withstand short circuit current equivalent to 35 MVA at 415 volts. The busbars will be adequately insulated and protected to prevent accidental contact during operation and maintenance.
8.8.2 Non-hygroscopic SMC supports shall be used for busbar to give better mechanical
and electrical strength and to ensure capability to withstand specified fault current.
8.9 Insulation:
8.9.1 The insulation between phases and between phases and ground of the power conductors will be made of synthetic resin board/molding, resistant to dust and dampness. All insulating material will be non- hygroscopic, fungus-proof and treated with suitable synthetic varnishes.
8.10 Terminals:
8.10.1 Upto 35 sq. mm cables, the terminal will be provided of clip-on type generally manufactured by M/s Elmex or M/s Technoplast and above 35 sq. mm, cable end terminals will provide of brass stud type designed of rugged construction.
8.11 Wire ways:
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8.11.1 PVC extruded wire ways of required size will be provided for wiring in the control panel.
8.12 Ferruling and colour code:
8.12.1 Cabling for power circuit should be red, Yellow and blue or otherwise proper colored sleeving will be provided at both ends of cables. For control cables every conductor will be provided with the identification ferrule matching with the one in the drawing.
8.12.2 All power and control wiring shall be done by using thimbles ferrules of proper size and
quality at both ends for identification. The wiring shall be neatly bunched for easy identification.
8.13 Cable Termination:
8.13.1 Every cable, either for control or power duty will be provided with crimped type of lugs of suitable size as specified.
8.13.2 All power and control wiring terminals shall be brought out in the cable Alley for easy Cable
Termination.
8.14 Cables (Internal Wiring)
8.14.1 All the cables will be PVC insulated FRLS of ISI approved and reputed make. The cables will be copper conductor as specified in the drawings and will be stranded and minimum number of strands will be three. The ratings will conform to IEE regulations.
8.14.2 All internal wiring inside the cubicle shall be carried out with 1100V grade, PVC insulated
copper wires duly ferruled at either end. The power wiring above 100A shall be carried out through the PVC insulated aluminium links.
8.15 Earthing:
8.15.1 The earth busbars should be GI/AI unless otherwise specified. Bolts to be of cadmium plated with washers. Earth busbars will be provided all around the cubicle at the bottom with duplex external earth connection arrangement.
8.16 Cable Glands and Lugs:
8.16.1 The cable glands will be of brass cone grip type. These glands will be provided for all the outgoing connections at both the ends for power as well as control circuits provided in the panel and also for the incoming cable or cables. Lugs will be crimped for termination of outgoing cable at both ends (i.e. load end and panel end) with each outgoing feeder.
8.17 Feeder Units:
8.17.1 The feeder units shall be of compartmental design comprising of cubicles assembled together and shall incorporate cubicle MCCB and MCB having rupturing capacity of minimum 25 KA and 10 KA at 440 volts respectively unless specifically mentioned.
8.17.2 The MCCB shall be quick break and trip free type with magnetic thermal release or as
specified in the BOQ. Protection Devices shall be as specified in BOQ.
8.17.3 Individual MCCB (with ammeter, selector switch, CTs) small wiring where provided should be easily removable from the front of the switchboard for servicing and maintenance. The connections to MCCBs from the busbars and cables should be terminated in pressure bolted joints inside the switch contacts.
8.17.4 The MCCB on main LT Panel shall have ratings: 63A, 100A, 125 A, 160 A, 200 A, 250A,
320A, 400A /630A with 36 KA (minimum) rupturing capacity unless specifically mentioned in the BOQ.
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8.17.5 Bus bar should have sufficient mechanical strength to with stand the effects of short circuit
until it can be cleared by appropriate protecting device. All busbars should be clearly marked with appropriate colour code to enable immediate identification of the phase and neutral. (Mechanical strength up to 70KA/1Sec)
8.17.6 The vertical bus bar should have a number of laminations to give appropriate current rating
and can be graded to suit the current rating required at each point by omitting laminations at the points of current decrease.
8.17.7 Arrangements should be provided to receive PVC cables either from the topside or from
the bottom (as specified). End plates should be mounted inside the busbar at unit level for cables from above or below
8.17.8 All sheet-steel parts used in the construction of a cubicle board should have undergone
rigorous rust proofing process which must comprise of alkaline degreasing descaling in dilute sulphuric acid and a recognized phosphating process. The steel work shall be finished with powder coating paint. The equipment when assembled shall form a neat and compact unit and shall be complete with supporting framework, mounting channels, and foundation bolts etc. and shall be designed so as to ensure complete interchangeability of component
9.0 LT POWER DISTRIBUTION CABLES:
9.1 Scope:
9.1.1 The scope of this section covers the supply, laying, testing and commissioning of overhead and under ground LT cables as specified in Bill of Quantities.
9.2 LV cables:
9.2.1 Cables shall be PVC/XLPE insulated and shall be of 650/1100 volts grade or as specified and shall have been manufactured confirming to BS 6346 and Indian Standard Specifications IS-694 and IS-1554 as applicable. These shall be of approved types accepted by the Fire Insurance Association of India for use in Industrial risks and to the following specifications. The contractor shall submit the Manufacturer’s catalogues giving electrical characteristics of the cables.
9.2.2 The fire retardant low smoke (FRLS) cables shall be 650/1100V grade multicore having
annealed tinned copper wires, insulated with special polymeric material suitable to withstand 150 degree for 30 minutes, cores laid up melinex taped, special low halogen and low smoke elastometric material inner sheathed black, armoured with G.I. Wires/cast steel strips, melinex taped outer sheathed with special low halogen and low smoke elestomeric material unless otherwise specified.
9.3 Multi-core cables:
9.3.1 These shall be as specified and small comprise of plain, circular, solid/ stranded Al conductors. PVC insulated and having an inner sheath of PVC compound, galvanized flat steel tape or round steel wire, armouring and PVC sheath overall and shall comply with IS:.1554-1961.
9.4 Flexible cables:
9.4.1 Twin flexible cables used for pendants and connections to other lighting fixtures shall have cross-section area or should be of 0.001sq. Inch (equivalent to 23/0.0076) or larger and be insulated in accordance with relevant IS specifications. The metric equivalent size for 23/0.0076 wherever mentioned may be noted as 23/0.20mm. All wires and cable shall be of FRLS type.
9.5 Jointing and Terminating Cables:
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9.5.1 Joints and terminations shall comply with the following clauses as appropriate to the type 0f cable. The Engineer-in-Charge shall be informed where it is proposed to install joints that are not indicated.
9.5.2 The Engineer-in-Charge shall be given evidence that the joint or termination manufacturer
has stated the materials to be employed are suitable for the type of cable to be jointed or terminated.
9.5.3 Cable shall not be cut until the jointing or terminating commences and the work shall
precede continuity until it is completed. All necessary precautions shall be taken to prevent damage and ingress of moisture and impurities; cable ends shall be free from moisture before jointing commences. Where circumstances prevent, completion the cable ends shall sealed. In the case of lead sheathed cables this shall be by plumbing and for aluminium sheathed cables by hermetically sealing.
9.5.4 The Contractor shall employ for this work, staff who is fully qualified and competent or the
types of joints and terminations to be made.
9.5.5 Core identification shall be matched at each joint without twisting or crossing of the cores. Where numbered cores are jointed to coloured all cable runs and on sites with existing installations consistent with the system already in use
9.5.6 For joints in armoured cables, a bonding conductor shall be connected across the
armouring. A spilt ferrule shall be placed under the armouring to prevent deformation of the cable by the clamp.
9.5.7 At terminations, armouring and metal sheaths shall be connected directly to the
external earthing terminal of the equipment by a bonding conductor. For LV cables the bonding conductor shall have a cross sectional area in accordance with Table 54P of IEE wiring Regulations. Metal sheaths of single core cables shall be bonded and earthed at one point only, as indicated, insulated glands shall be used at the open- circuit end or ends.
9.5.8 At terminations, cable tails shall be formed by separating and bringing out the cores. Each
tail shall be long enough to connect to the terminals of the equipment.
9.5.9 At the terminations of single core cables, gland plates shall comply with relevant clause. For three phase circuits the phase conductors shall be arranged, if possible, in trefoil formation where they pass through the enclosure of equipment
9.5.10 Core identification at terminations shall be by coloured or numbered plastic stretch or shrink
ferrules.
9.5.11 Continuity of spare cores shall be maintained at joints and at terminations, the cores shall be connected to spare terminals.
9.5.12 Solder shall be used only for connecting or terminating paper-insulated cables. All other
connections and terminations shall be by means of compression fittings or mechanical clamps.
9.5.13 Compression connectors and associated dies for compression tools shall be of correct
type and size.Tools shall be so designed that the correct compression must be applied before it can be released.
9.6 Cable Identification:
9.6.1 For multi core cables, PVC ferrule type indicators or tags shall be provided at both ends for core identification. For phase identification of 2/3/3.5/4 core cables, coloured PVC tapes shall be used at both ends.
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9.6.2 All cables shall be provided with aluminium tags of approved design, spaced not less than 7.5 meters. Apart and these shall contain the following: Feeder No Size No of Cores
9.7 Sleeves, Tapes and Sealing Compounds:
9.7.1 Sleeves shall be of the shrink type applied cold by mechanical device or by the use of heat, they shall provide a sufficient thickness of insulation to suit the particular application.
9.7.2 Insulating tapes used in joints and terminations shall be compatible with and have a
temperature rating and insulating property not less than the cable insulation. They shall be complying with BS 3925.
9.7.3 Impregnated cotton tapes shall be double selvedged.
9.7.4 All tapes shall be stored in sealed containers until required.
9.7.5 Resin filling should be, as far as is reasonably practicable, safe and without risk to health.
Each pack shall include warnings as to any hazards in its use, e.g. dermatic or toxic properties with details of precautions, which the user must take to minimize these.
9.7.6 Hot pouring sealing compound shall be hard setting and comply with BS 1858:1973 (1986).
Selection of the compound shall take account of the ambient temperature of installation as well as characteristics of the joint.
9.7.7 Care shall be taken to prevent voids occurring in consequence of too rapid cooling.
9.7.8 Resin filling shall be used with PVC/ XLPE type cables and hot poured compound shall be
used with paper insulated lead covered cables.
9.8 Cable Supports:
9.8.1 Unless otherwise indicated the type of cable supports used shall be selected by the Contractor to suit the circumstances of the installation, but they shall comply with these specification and the following preferences shall be taken into account:
For Horizontal runs Cable Tray
For vertical runs Clabber Cleats Where marshalling of cables occurs e.g. at switchboards Cable Racks.
9.8.2 Unless otherwise indicated all ferrous metal for cable tray, cable racks, and cable ladder,
cable hangers and their fixings and suspensions shall have a galvanized finish.
9.8.3 For general use inside buildings the galvanised finish shall be a coating equivalent to and not less than type G275 to BS 2989, but manufacturer’s standard finishes will be accepted for slotted angles. All metal exposed during fabrication shall be given a coat of zinc-rich paint, brushed on or finished to match the manufacturer’s finish.
9.8.4 Metal cable tray shall be used unless otherwise indicated and it shall comply with these
specifications where cables are laid in the cable tray they shall be secured by ties, each tie securing the cables of only one circuit. The ties shall be of a proprietary type not requiring screws or bolts for fixing the use of wire or similar material will not be permitted. Ties shall be spaced at not greater than 600 mm along each cable and within 100 mm of each bend or set.
9.8.5 Where cable tray is installed in the veritable plane, cables shall be supported by cable cleats.
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9.8.6 Cable tray shall be fixed at regular internals not exceeding 1200 mm and at 225 mm from bends and intersections. A minimum clear space of 20 mm shall be left behind all cable trays.
9.9 Cable cleats:
9.9.1 Cable cleats shall be made from materials, which are resistant to corrosion without the need for treatment of special finish.
9.9.2 Cable cleats shall be of a size such that they can be tightened down to grip the cables
without exerting undue pressure or strain on them. For vertical cable two bolt cable cleats shall be used which shall grip the cables firmly enough to prevent them slipping.
9.9.3 The spacing of cable cleats shall comply with the IEE Wiring Regulations. At bends in the
cable, cleats shall be located immediately on each side.
9.10 Cable Racks:
9.10.1 Cable racks shall comply with these specifications and shall be constructed from proprietary systems using channel sections with return lips and compatible fixing accessories, factory formed cable ladder may also be used
9.10.2 Cable shall be fixed to the racks and ladders by cable cleats.
9.11 Cable Hangers: 9.11.1 Cable hangers shall be used only where indicated. They shall be made from mild steel flat
bar complying with these specifications.
9.12 Suspensions and Fixings:
9.12.1 It is preferred that proprietary suspension systems comprising channel sections with
return lips and compatible fixing accessories or slotted angles should be used, Where necessary fixing may be fabricated from mild steel flat bar. Metal arc welding shall comply with BS 5135.
9.12.2 Unless otherwise indicated fixing to the building fabric shall comply with table below:
TABLE-FIXING FOR CABLE SUPPORTS
Building fabrics Type Fixing
Structural Steel work Purpose made clamps
(Type to be approved by Engineer-in-Charge)
Non-structural steel work Bolts, Washers and nuts. Expanding anchors Concrete brick or building Blocks, Timber Coach bolts
Note: Where cable cleats are fixed direct to concrete, brick or building block, fiber plugs and screws may be used as appropriate.
9.12.3 No shot firing shall be used and no drilling or welding of structural steel shall be done without approval of the Engineer-in-Charge.
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9.12.4 Suspensions and fixings shall be comply with relevant clause.
9.12.5 Bolts, nuts, washers and screws shall be cadmium or zinc Electroplated or passivated.
9.13 Bonding:
9.13.1 Supplementary bonding shall be installed between component parts of cable trays, racks or ladders where the method of mechanical connection does not provide permanent and reliable metal to metal joints of negligible impedance.
9.14 Cable Installation:
9.14.1 Unless the routes of cables are indicated on drawings, they shall be determined by the contractor and approved by the Engineer-in-Charge before work is started.
9.14.2 Cable installation on the surface shall be parallel with the lines of building construction
and properly aligned.
9.14.3 A minimum clearance of 150mm shall be allowed from any equipment, pipe work or duct work. The distance shall be measured from external surface of any lagging.
9.14.4 In the event of difficulty in achieving these requirements, Engineer-in-Charge shall be
informed.
9.14.5 Spacing between cables shall comply with relevant table, but where indicated account must be taken of any grouping necessary to maintain the current carrying capacities of cables.
9.14.6 Space shall be allowed along cables routes for future additions where indicated and cable
supports shall be of adequate size for the ultimate load.
9.14.7 Adequate space shall be left between cable runs, the building fabrics and other services to allow for future removal or installation of cables.
9.14.8 Cables shall be adequately supported by one of the methods specified in clause 9.8
throughout cable ducts or are buried direct in the ground. Fixing direct to building fabric by cable cleats may be adopted for single runs subject to the approval of Engineer-in-Charge, and where indicated.
9.14.9 Cables shall be supported within 30mm of their termination at equipment; the weight of
the cable shall not be carried by the terminal box gland. 9.14.10 Where cables cross expansion and settlement joints in the building structure, they shall be
fixed 300 mm each side of the joint and sufficient slack left between to allow for movement. Where the cables are buried in the building fabric suitable provision shall be made to allow for movement of the structure. The contractor shall submit his proposals for approval of Engineer-in-Charge.
9.15 Handling of cables:
9.15.1 Cables shall be handled with care and every effort made to avoid damage to the cables, to other services and to building fabric. Recommendations or instructions available from the cable manufacturers concerning the installation of cables shall be taken into account. In particular co-axial cable shall not be bent in radius less than six times the overall diameter. Any damage shall be reported immediately to Engineer-in-Charge.
9.16 Marking of cables:
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9.16.1 Cables located in switch rooms, ducts and spaces designated solely for electrical services or have orange over sheaths, they shall be identified by adhesive bands coloured orange, complying with BS 1711. The bands shall not be less than 100 mm long, located at least once within each separate compartment through which the cables pass at intervals not exceeding 12 m.
9.16.2 Except where cables are buried or enclosed in conduit, trunking or ducting, they shall be
permanently identified by discs. Discs shall be of laminated plastic materials with black characters on white: characters shall be not less then 3 mm high. The inscription shall indicate nominal voltage, designation of load, number and cross sectional area of cores and rated voltage of cable.
9.16.3 Cable identification discs shall be attached to the cables with ties. Discs shall be located
within 500 mm of terminations and joints, at least once within each separate compartment through which cables pass and at intervals not exceeding 24 m, they shall coincide with the colour bands.
9.17 Laying Cables in Ground:
9.17.1 Cables shall be laid by skilled experienced workmen using adequate rollers to minimize stretching of the cables. The cable drums shall be placed on jacks before unwinding the cable. With great care it shall be unrolled on over wooden rollers placed in trenches at intervals not exceeding 2 meters. Cables shall be laid at depth of 0.75 meters below ground level. The Bricks and a cushion of sand total of 250mm shall be provided both above and below the cable, joint boxes and other accessories. Cable shall not be laid in the same trench or along side a water main.
9.17.2 The cable shall be laid in excavated trench over 80mm layer of sand cushion. The relative
position of the cables, laid in the same trench shall be preserved. At all changes in direction in horizontal and vertical planes, the cables shall be bent smooth with a radius of bent not less than 12 times the diameter of cables. Minimum 3 meter long loop shall be provided at both end of cable.
9.18 Laying in Pipes / Closed Ducts :
9.18.1 The size of the pipe shall be decided by the Engineer-in-Charge and shall not be less than 10 cm, in diameter for a single cable and not less than 15 cm for more than one cable. These pipes shall be laid directly in ground without any special bed except for SW pipe which shall be laid over 10 cm, thick cement concrete 1:5:10 (1 cement : 5 coarse sand: 10 graded stone aggregate of 40 mm nominal size) bed. No sand cushioning or tiles need be used in such situations. Unless otherwise specified, the top surface of pipes shall be at a minimum depth of 1m from the ground level when laid under roads, pavements etc.
9.18.2 Where steel pipes are employed for protection of single core cables feeding A.C. load, the
pipe should be large enough to contain both cables in the case of single phase system and all cables in the case of polyphase system.
9.18.3 The pipes on road crossings shall preferably be on the skew to reduce the angle of bend as the cable enters and leaves the crossing. This is particularly important for high voltage cables.
9.18.4 Manholes of adequate size as decided by the Engineer-in-Charge shall be provided to
facilitate feeding/drawing in of cables and to provide working space for persons. They shall be covered by suitable manhole covers with frame of proper design.
9.18.5 Pipes shall be continuous and clear of debris or concrete before cable is drawn. Sharp
edges at ends shall be smoothened to prevent injury to cable insulation or sheathing.
9.18.6 Pipe for cable entries to the building shall slope downwards from the building and suitably sealed to prevent entry of water inside the building. Further the mouth of the pipes at the building end shall be suitably sealed to avoid entry of water.
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9.18.7 All chases and passages necessary for the laying of service cable connections to buildings shall be cut as required and made good to the original finish and to the satisfaction of the Engineer-in-Charge.
9.18.8 Cable grips / draw wires and winches etc. may be employed for drawing cables through
pipes/closed ducts etc.
9.19 Laying in Open Ducts:
9.19.1 Open ducts with suitable removable covers shall be preferred in sub-stations, switch rooms, plant rooms, workshops etc.
9.19.2 The cable ducts should be of suitable dimensions so that the cables can be
conveniently laid. If necessary, cables may be fixed with clamps on the walls of the duct or taken in troughs in duct. The duct should be covered with removable slabs or chequered plates.
9.19.3 Ducts may be filled with dry sand after the cable is laid and covered as above or finished
with cement plaster specially in high voltage applications.
9.19.4 Splices or joints of any type shall not be permitted inside the ducts.
9.19.5 As far as possible laying of cables with different voltage ratings in the same duct shall be avioded.
9.19.6 Where considered necessary, hooks or racks shall be provided for supporting the cables in
masonary / concrete cable ducts, cable troughs. Otherwise cables shall be laid direct in the trench or trough etc. While deciding the layout of cables in such ducts, care should be exercised to ensure that unnecessary crossing of cables is avoided.
9.20 Protection of Cables:
9.20.1 The cables shall be protected by bricks laid on the top layer of the sand for the full length of underground cable. Where more than one cables is laid in the same trench, the bricks shall cover all the cables and shall project a minimum of approximately 80mm on either side of the cables. Cable under road crossings and any other places subject to heavy traffic shall be protected by running them through Hume Pipes of suitable size.
10.0 EARTHING: 10.1 Scope:
10.1.1 The scope of this section covers supply installation and testing of earthing system for all non-current carrying metal parts of electrical installation.
10.1.2 The type and number of earth electrodes shall be as indicated and shall comply with clauses as appropriate.
10.1.3 Dedicated earthing shall be provided for the Server Room equipments.
10.2 Earthing System & Equipment Bonding:
10.2.1 Unless otherwise indicated, earth plates shall be 600 mm x 600 mm minimum, of solid or lattice copper not less than 3.0 mm thick and of GI not less than 6.0 mm.
10.2.2 Earthing system shall comprise of earth electrode near sub-station. Test link boxes shall be
provided at each electrode for periodical resistance measurement. All such earth electrodes shall be interconnected forming a main grid.
10.2.3 Where the earth electrodes are formed with tape, the tape shall be to relevant IS, of the
size, length, depth below ground level and layout as indicated.
10.3 Conductors:
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10.3.1 Earthing conductors, main earthing bars and main equi-potential bonding conductors shall be of the type, size and conductor material as indicated and shall comply with the following clauses.
10.3.2 Tapes shall comply with relevant IS. Where used to interconnect copper electrodes the
tape may be bare, but for interconnecting pipe electrodes and for all other purposes the tap shall have an extruded PVC sheath.
10.3.3 Main earthing bars shall comply with IS 3043 and shall be bare.
10.3.4 Cables shall comply with IS 3043, without sheath, unless otherwise indicated.
10.4 Joints And Connections:
10.4.1 Joints in conductors shall be kept to a minimum.
10.4.2 All contact surfaces shall be thoroughly cleaned and coated with an anti-corrosive
electrical jointing compound suitable for the conductor materials. For bi-mettallic joints, a separate abrasive shall be used to clean each metal.
10.4.3 Connections shall be made as follows:
to main earthing bars by phosphor bronze set screws and nuts; to earth rods by bronze, gunmetal or copper clamps with phosphor bronze. Edges of clamps shall be rounded; to earth pipes by phosphor bronze bolts and nuts, direct to the flange of the pipe; to earth plates by bolting, rivetting or welding.
10.4.4 Termination of cables shall be by connectors jointed to the cable conductor by the
thermit welding process or by compression joints complying with BS 4579.
10.4.5 Joints which are indicated as test points shall be bolted or clamped. Joints in tape, other than at test points shall be made by the reveting and sweating. Overlap of conductors shall be not less than 100 mm.
10.4.6 Joints and connections shall be protected by a coating which will form a seal and exclude
moisture in all weather conditions. At connections to earth electrodes, the coating shall cover all exposed conductors and in the case of earth pipes, to top surface of the flanges. Protective coatings shall be of a waterproof, inert, tenacious material and of one of the following forms:
a) solvent cutback thixotropic corrosion preventative forming a film of resilient matt petroleum
wax; b) a fast drying durable rubberised sprayed coating; c) a heat shrink clear sheathing
10.4.7 Screws, nuts, washers and rivets for copper conductors shall be of phosphor bronze,
naval brass or copper silicon; for aluminium conductors, they shall be of stainless steel. The minimum provision shall be:
a) for flat strip --- two M8 bolts or four 5 mm diameter rivets; b) for sheet metal --- two M8 bolts; where the sheet metal is less than 2 mm thick,
it shall be backed for an area of at least 1000 mm2.
10.5 Inspection Pits:
10.5.1 Unless otherwise indicated, connection between an earth conductor and its associated earth electrode system shall be in an enclosure.
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10.5.2 The enclosure shall have a removable top cover which shall be flush with finished ground level. The enclosure shall be a purpose made concrete inspection pit, a galvanised steel inspection pit embedded in concrete, an earthenware pipe or similar, as indicated. The earth electrode connection shall be just below the lid of the inspection pit with adequate access for testing purposes.
10.6 Supports And Fixings:
10.6.1 Cables shall be supported and fixed in accordance with Section Cable laying.
10.6.2 Tapes and bars shall be fixed by spacer bar saddles which shall be of non-metallic material or corrosion resistant alloy compatible with the conductors. Fixing of saddles shall comply with relevant clauses in Cable Laying section. The maximum spacing off fixings shall not exceed 600 mm unless otherwise indicated.
10.6.3 Main earthing bars shall be supported on insulators; they shall be not less then 25 mm
clear of the building fabric.
10.6.4 For general areas inside buildings, screws and nuts shall be of cadmium electroplated steel or stainless steel; outside buildings, in plant rooms or other locations as indicated, they shall be of stainless steel.
10.6.5 No shot firing shall be used and no drilling or welding structural steelwork shall be done
without the approval of the Engineer-in-Charge.
10.7 Installation:
10.7.1 Electrodes shall be installed in undisturbed ground. The distance between any two electrodes shall be not less than 1.25 times the depth of the longer electrode.
10.7.2 Excavations shall be carried out in accordance with BS 6031 and shall comply with the
construction (General Provisions) Regulations, 1961. Excavations shall be kept free of water and protected against damage or collapse. The safety of persons and the protection of structures, buildings, roads, sewers and services from damage shall be ensured; all necessary sheeting, timbering, strutting and shoring shall be supplied, erected and subsequently removed.
10.7.3 Trenches shall be backfilled in layers and each layer shall be rammed. The first two layers
shall be 100 mm deep and rammed by hand the remaining layers shall be not more than 200 mm deep and power ramming may be used. Warning tapes and covers shall be included as specified in relevant clauses in Cable laying section. Where applicable, top soil and turf shall be replaced and the final level shall be level with or not more than 25 mm above the adjacent ground level.
10.7.4 The earth resistance should be less than 2.0 Ohms. Earth Pits shall be treated with
salt, charcoal /chemicals to be achieve the required result.
11.0 SETTING OF PRESSURE SWITCHES/OPERATING CONDITIONS FOR FIRE PUMPS:
11.1 The fire pumps shall operate on drop of pressure in the mains as given under clause
below. The pump operating sequence shall be arranged in such a manner to start the pump automatically but should be capable of being stopped manually by stop push buttons only.
11.2.1 It is thus to be noted that;
i) Jockey Pumps shall start and stop automatically through pressure switches. ii) Jockey Pump shall stop when main pumps start. iii) Main/Diesel Engine driven fire pumps shall start automatically when pressure
falls below the above specified limits, but stopping shall be manual.
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12.0 INTERLOCKING AND CONTROL PANEL:
12.1 The System has been designed for operation automatically so that as and when water is
drawn from the system through any hydrant/sprinkler, the pumps will operate automatically and feed water into the system. However once a Fire Pump start working, it will be stopped only manually (except jockey pump) or on account of any fault or non-availability of power supply to electrical pumps or low water level in UG/Terrace tank.
12.1.1 Facility shall also be provided for manual operation. A selector switch for auto/manual
selection shall be provided in each pump.
12.1.2 The Control system shall be designed to provide the following sequence of operation:
a) The Pressurisation Pump shall maintain pressure in the system and shall
operate only on account of slow pressure loss. In case of the sudden pressure loss the Pressurisation Pump shall not operate. The pump shall start when the
water pressure in the system falls to a pre-set value (about 0.35 kg/cm2
below normal system pressure) and shut down when the system pressure reaches the set value. Both limits shall be adjustable.
b) Main Electric Fire Pump shall operate on account of sudden pressure loss. So long as Main Electric Fire Pump is working, other Fire Pumps will not operate. The pump shall start when the water pressure falls to a pre-set value in the system
(about 1 kg/cm2)
c) The Diesel Fire Pump will start on sudden pressure loss, only in case supply to Main Electric Fire Pump is not avaiable or within a pre-set time the Main Electric Fire Pump fails to start or fail during operation. No other pump will be working when Diesel Engine Fire Pump is in operation. Audio-Visual Alarm shall be available to indicate failure of Main Electric Fire Pump.
d) A three attempts starting facility will be provided for diesel pump.
e) If within a pre-set time, the standby pump also fails to start or fails to develop pressure, the standby pump shall also be shut down and locked out. An audio visual alarm indication shall be given at the control panel.
f) Only one pump will be working at a time. In manual mode more than one pump can be started.
g) Water level in UG and terrace tanks shall be monitored and in case of low water
level, pumpsconnected with the tank shall not operate (even on manual mode) or stop operation as the case may be. An audio-visual alarm shall be given at the control panel.
h) The System Controller shall be designed to operate the fire pumps with interlocking and fault indication as brought out above Annunciation window provided in the panel shall indicate following faults:
i) Low water level in UG Tank ii) Low water level in Terrace Tank
iii) Main Pump failed to start
iv) Main pump failed during operation
v) Diesel Pump failed to start
vi) Diesel Pump failed during operation
vii) Supply to main pump failed
viii) Supply to pressurisation pump failed
ix) Supply to terrace pump failed
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12.1.3 Suitable sensors, differential pressure switches, monitors etc. shall be provided at respective location. The control system shall be operational on 24 Volt DC batteries of engine starting Battery chargers shall be provided to ensure that the batteries remain charged all the time. Batteries shall be sealed maintenance free type.
13.0 PIPE, FITTINGS, VALVES, SUPPORTS AND OTHER ACCESSORIES:
13.1 Pipes, Fittings & Supports:
13.1.1 General:
a) All materials shall be new of the best quality conforming to the specifications and subject to the approval of the Project Manager.
b) Pipes and fittings shall be fixed truly vertical, horizontal as required in a neat workman like manner.
c) Pipes shall be fixed in a manner as to provide easy accessibility for repair and maintenance and shall not cause obstruction in shafts, passages etc.
d) Pipes shall be securely fixed to walls and ceilings by suitable clamps at intervals specified. Only approved type of anchor fasteners shall be used for RCC ceilings and walls.
e) Valves and other appurtenances shall be so located that they are easily accessible for operations, repairs and maintenance.
13.1.2 Pipes and fittings of following types (depending upon the description of item) and ISI
marked only shall be used:
Type of Pipe / (dia)
Size
Grade
Ends/Fitting
Code
MS/ Galvanised Pipes
Upto 50 mm dia Heavy grade
Screwed
IS: 1239 (Part I)
MS/ Galvanised
Fittings
- do-
Heavy grade
MS/Galvanised
Forged,Screwed ends
IS: 1239
(Part II)
MS/ Galvanised
Pipes
65 mm &
above dia and upto 150 mm dia
Heavy grade
Bevel, Butt Welded, 3
layers forms/screwed for Galvanised
IS: 1239
(Part I)
MS/ Galvanised Fittings
-do-
Heavy, machine formed from IS marked heavy grade pipes
-do-
IS: 1239 (Part III)
MS/Galvanised
Pipes
Above 150 mm dia
6.0 mm wall thickness
up to 200 mm
8.0 mm wall thickness up to 300 mm
Bevel, Butt welded, 3 layers
for MS/ screwed for Galvanised
IS: 3589
MS/ Galvanised
Fittings
-do-
Schedule 40
-do-
IS: 3589
13.1.3 For MS/Galvanised pipes upto and including 50 mm dia screwed jointing shall be adopted, while for pipes 65 mm and above welded connections shall be used for MS and screwed connection for Galvanised. Only Electro Galvanised nuts /bolts shall be used.
13.1.4 The piping system and components shall be capable of with standing 150% of the
working pressure including water hammer effects and test pressure upto 16 kg/cm2.
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13.1.5 Flanged joints shall be used for connections to vessels, equipment, flanged valves and also on suitable straight lengths of pipeline of strategic points to facilitate erection and subsequent maintenance work.
13.1.6 Flange thickness shall be as per table below IS : 6392 – 1971.
Table – 17/18.
250 mm dia : 26 mm ;
200 mm dia : 24 mm ;
150 mm dia : 22 mm ;
125 mm dia : 22 mm ;
100 mm dia : 20 mm ;
80 mm dia : 20 mm ;
65 mm dia : 18 mm .
13.1.7 M.S. Fittings for pipes above 65 mm or and upto 150 mm dia shall be fabricated from
seamless pipe pieces of minimum 5 mm wall thickness. For tees and other fittings where seamless sections are not available, the fittings shall be fabricated from Electric resistant welded pipes as given in the approved makes. However Galvanised fitting will be screwed. The fittings shall have a minimum 5 mm wall thickness. The fittings shall with stand pressure of upto 21 kg/cm2.
.
13.1.8 Fittings below 50 mm or shall be M.S./ Galvanised Forged Screwed ends. The fittings shall
be threaded at both ends. The fittings shall withstand pressure of upto 21kg/cm2.
13.1.9 For tappings of 50 mm/40mm/32mm/25mm from headers, half socket connections
with one side threading shall be employed. The half socket shall be welded at the centre of the header, either on the side or on the top.
13.1.10 Wherever two horizontal headers are to run side by side, the two headers shall be
located at different levels, if possible, so as to avoid unnecessary bends at tapping off from the headers. Accordingly, the supports shall also be staggered to support pipes at two levels.
13.2 Pipe Support:
13.2.1 All pipe clamps and support shall be mild steel.
13.2.2 Pipe shall be hung by means of expandable anchor fastener of approved make and
design (Dash Fasteners or equivalent). The hangers and clamps shall be fastened by means of galvanised nut and bolts. The size/diameter of the anchor fastener and the clamp shall be suitable to carry the weight of water filled pipe and dead load normally encounted.
13.2.3 Hangers and supports shall be capable of carrying the sum total of all concurrently acting
loads. They shall be designed to provide the required supporting effects and allow pipelines movements as necessary. All guides, anchore, braces, damapeners, expansion joints and structural steel to be attached to the building/structure, trenches etc shall be provided by the contractor. Hangers and components for all piping shall be approved by the Client/engineer. Anchoring fasteners shall be rated to take minimum 2 tons load and shall be of approved make.
13.2.4 While all piping shall have clevis type hanger supports from the ceiling with fasteners, for
pipe headers of 100 mm dia and above, additional wall/column mounted supports shall be taken. Clevis type hanger supports shall be at 3.0 m intervals and at every turn, at both ends. MS angle supports at wall and columns shall be at 18 m intervals. The angles shall
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be cut by gas cutter and evened out by grinder. All welding to angles shall also be cleaned by grinder. Angles shall not be less than 40 x 40 x 6 mm size.
13.2.5 For fixing clevis hanger and angle support, only dash fasteners shall be used. Exposing of
steel reinforcement and welding to them shall not be permitted except in exceptionable circumstances.
13.2.6 Pipes in vertical shafts shall have MS angle brackets at alternate floor level. The
bracket shall be mounted behind the pipe. A baseplate of 50 wide x 6 mm thick shall be welded to the bracket. The baseplate shall be fixed to the wall by means of fasteners GI U clamps shall be used to fix the pipe to the bracket.
13.2.7 Each riser shall also be anchored to the floor slab with MS angles mounted on the slab.
The angles shall be 40 x 40 x 5 size, one mounted before the pipes and the other after the pipes. Extra cleat pipe pieces shall be welded to the pipes at this point which shall be welded to the angle iron support.
13.2.8 Wherever angle type supports are being used, profiled packing materials or wood or
materials as approved by the Engineer shall be used. The packing materials shall be at least 25 mm thick, and tight fitted with the pipe.
13.3 Hose Reel:
13.3.1 Wall mounting the swinging type first aid hose reel with drum shall conform to IS : 884-1985.
13.3.2 The rubber tubing shall be 20 mm dia high pressure rubber hose 36.0 m long as per IS
: 444 with gunmetal shut off nozzle having 6.5 mm dia orifice and control valve, shut off valve of approved make. The wall mounted bracket shall be fixed by means of fasteners. The hose reel shall have a gun metal nozzle.
13.3.3 The hose reel shall be connected directly to the riser by means of 25 mm dia MS pipe
with threaded bends, union & one no. ball valve.
13.3.4 The drum can swing up to 180 degree.
13.4 Hose Cabinets:
13.4.1 Hose cabinet shall be fabricated from 16 gauge MS powder coated sheet of fully
welded construction with hinged single/double door partially glazed door with
suitable locking arrangement, stove enameled fire red paint with ‘Fire Hose’
written on it prominently. Glass panes shall be 4 mm thick.
13.4.2 The hydrant cabinet shall hold double headed hydrant, 2 nos. Hoses and 1 no. branch
pipe.
13.4.3 The cabinet shall have two pipe studs of 200 mm dia in MS with base which shall
be fixed to the back of the cabinet and shall be used to hold the RRL hose.
13.5 RRL Hoses:
13.5.1 The hoses for the internal and external hydrant system should be rubber
impregnated wooven jacketted type conforming to IS:636 Type-A. Each fire hose
shall be provided with quick coupling, branch pipes, nozzles, spanners etc.
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13.5.2 Hose pipes of all types shall be capable of withstanding an internal water pressure of not less than 35 Kg/Sq.cm without bursting. It must also withstand a pressure of 21 Kg/Sq.cm without undue leakage or sweating.
13.5.3 Each hose shall be fitted with instantaneous spring lock type couplings at both ends. Hose shall be fixed to the coupling ends by copper rivets and the joint shall be reinforced by 1.5 mm galvanised mild steel wires and leather bands.
13.6 Branch Pipes and Nozzle:
Stainless steel Standard Branch Pipe shall be used conforming to IS : 903 with Stainless steel nozzle of 20 mm (nominal internal dia) to fit standard instantaneous type 63mm dia hose coupling. Suitable spanners of approved design shall be provided in adequate numbers for easy assembly and dismantling of various components like branch pipes, nozzles, quick coupling ends.
13.7 Hydrant Valve:
13.7.1 Stainless steel Hydrant valve shall be of oblique pattern provided as per IS: 5290
complete with hand wheel, quick coupling connection, spring and blank cap and chain.
13.7.2 The hydrant shall have flanged inlet of 100 mm dia and 63 mm female instantaneous
type outlet. The hydrant shall have a rubber plug with chain fixed to the main body of the Hydrant.
13.8 Pressure Switch:
13.8.1 The pressure switches shall be employed for starting and shutting down operation
of pumps automatically, dictated by lines pressure. The Pressure switch shall be diaphragm type, it shall be suitable for line pressures upto 15 kg/cm
2.
13.8.2 The switch shall be suitable for consistent and repeated operations without change in
values.
13.8.3 The enclosure shall be of aluminium and pressure element and wetted parts shall be of
stainless steel.The switch shall be snap acting type with 1 no. N O/NC contact.
13.9 Air Vessel:
13.9.1 The air vessels shall be provided to compensate for slight loss of pressure in the
system and to provide an air cushion for counter acting pressure surges whenever
the pumping set comes into operation. It shall be normally partly full of water, the
remaining being filled with air, which will be under compression when the system
is in normal operation.
13.9.2 Air vessel shall be fabricated from MS plate conforming to IS : 2002 grade 2A having 8
mm thickness shell with 10 mm thick dished ends and suitable supporting legs. It shall be provided with a 80 mm dia/100 mm dia flanged connections from pump, one 25 mm drain with ball valve and 15 mm sockets for pressure gauge and pressure switches. The air vessel shall be hydraulically tested to 20 kg/cm
2 pressure for 30 minutes.
13.9.3 The pressure vessel shall be provided for hydrant and sprinkler system. The pressure
switches shall be mounted on the drain end of each air vessel. The air vessel shall also be provided with safety valve mounted at the top. The presser vessel shall be supplied of size 250 mm dia x 1200 mm height.
137
13.10 Fire Department Connections:
13.10.1 Fire Brigade Inlet (4 Way) to Hydrant Ring/Hydrant Riser:
a) Gun Metal four way fire brigade tank filling connection having
63 mm dia instantaneous type inlet and 150 mm dia flange outlet
conforming to IS : 904 with blank cap and chain with necessary 150 mm
dia MS (heavy duty pipe) and flanges, nuts and bolts etc.
b) The inlet assembly shall be in glass fronted wall box and size of wall
box shall be adequate to allow hose to be connected to the inlets, even if
the door cannot be opened and the glass has to be broken.
c) Each box shall have fall of 25 mm toward the front at its base and shall be
glassed with wired grass with “FIRE SUPPLY TO TANK” painted on the
inner face of the glass in
50 mm size block letter. d) Each such box shall be provided with a steel hammer with chain for breaking
the glass.
13.10.2 Tank Filling Connection:
a) Gun Metal four way fire brigade tank filling connection having 63
mm dia instantaneous type inlet and 150 mm dia flange outlet conforming
to IS : 904 with blank cap and chain with necessary 150 mm dia MS
(heavy duty pipe) and flanges, nuts and bolts etc.
b) The inlet assembly shall be in glass fronted wall box and size of wall
box shall be adequate to allow hose to be connected to the inlets, even if
the door cannot be opened and the glass has to be broken.
c) Each box shall have fall of 25 mm toward the front at its base and shall be
glassed with wired grass with “FIRE SUPPLY TO TANK” painted on the
inner face of the glass in 50 mm size block letter.
d) Each such box shall be provided with a steel hammer with chain for breaking
the glass.
13.10.3 The inlets shall be provided with ABS quality plastic blank caps with chain.
13.11 Valves:
13.11.1 Sluice Valves:
13.11.1.1 Sluice valve of 65 NB and above shall be flanged valve with cast iron body. The spindle,
wall seat and wedge nuts shall be of bronze. They shall generally have non-rising spindle and shall be of the particular duty and design called for. All sluice valves will be provided with supervisory switch.
13.11.1.2 The valves shall be supplied with suitable flanges, non-corrosive bolts and asbestos fibre
gasket. Sluice valves shall conform to Indian Standard IS: 14846: 2000 and IS: 2906. Sluice valves for water works purposes suitable for seat test pressure of 16 Kg/Sq.cm.+
138
13.11.2 Butterfly Valve:
13.11.2.1 The butterfly valve shall be suitable for water works and tested to minimum of 15 Kg/Sq.cm
pressure.
13.11.2.2 The body shall be of cast iron to IS : 210 in circular shape and of high strength to
take the water pressure of 10 Kg/Sq.cm. The disc shall be heavy duty cast iron with anti corrosive epoxy or nickel coating.
13.11.2.3 The valve seat shall be of high grade elastomer or nitrile rubber. The valve in its closed
position shall have complete contact between the seat and disc throughout the perimeter. The elastomer rubber shall have a long life and shall not give away on continous applied water pressure. The shaft shall be EN 8 grade carbon steel.
13.11.2.4 Butterfly valve shall be of best quality conforming to IS : 13095 of class specified.
13.11.2.5 The valves shall be supplied with manual gear operated opening/closing by lever.
13.11.2.6 The valves shall be supplied with supervisory switch.
13.11.3 Gun Metal Valves:
13.11.3.1 Gun metal valves shall be used for smaller dia pipes, and for threaded connection. The
valves shall bear certification as per IS: 778-1984 and shall be rated to 15 Kg/Sq.cm pressure.
13.11.3.2 The body and bonnet shall be of gun metal to IS : 318. The steam gland and gland nut
shall be forged brass to IS: 319. The hand wheel shall be of cast iron to IS: 210.
13.11.3.3 The hand wheel shall be of high quality finish to avoid hand abrasions. Movement shall
also be easy.The spindle shall non rising type.
13.11.3.4 All valves shall be approved by the Authority Representative before they are allowed to be
used on the work.
13.11.4 Non-Return Valve:
13.11.4.1 Non-return valves shall be cast iron dual plate type. An arrow mark in the direction of
flow shall be marked on the body of the valve. The valve shall bear IS : 5312 certification.
13.11.4.2 The valve shall be of cast iron body and cover. The internal flap in the direction of water
shall be of cast iron and hinged by a hinge pin of high tensile brass of stainless steel. Cast iron part shall be as per IS : 210
13.11.4.3 The gasket shall be of high quality rubber and flap seat ring of leaded gunmetal. At high
pressure of water flow the flapper shall sit tightly to the seat. The valve shall be capable of handling pressure up to 15 Kg./Sq. Cm
13.11.5 Air Valves:
13.11.5.1 Provide 25 mm dia screwed inlet cast iron single acting air valves, on all high points in
the system as shown on the drawing.
13.11.6 Drain Valve:
13.11.6.1 Provide 50 mm dia between steel pipe to IS : 1239 (heavy duty) with 50 mm gunmetal full
way valve for draining any water in the system in low pockets.
139
13.11.6.2 Drain valves shall be provided at low points of all water riser and mains to ensure that all sections of pipe works and plant can be drained.
13.11.7 Foot Valve: 13.11.7.1 Foot valves of water supply system shall be heavy duty construction with integrated
flanges connection and have cast iron body, all bronze trims with stainless steel spring and stainless steel strainer.
13.11.7.2 The flow area on stainer shall be atleast three times of Pipe size.
13.12 Gate Valve Chamber:
A masonry chamber of internal dimension 1.20m x 1.20m x 1.5m depth shall be built to accommodate sluice valves placed in external ring main, 230mm thick walls shall be of 75 class designation brick work in cement mortar 1:5 (1 cement : 5 fine sand) with CI medium duty manhole cover. The top slab RCC shall be of 1:2:4 mix (1 cement : 2 coarse sand : 4 graded same aggregate 20 mm nominal size) and inside plastering with cement mortar 1:3 (1 cement : 3 coarse sand ) 12 mm thick finished with a floating coat of neat cement all complete.
13.13 Pressure Gauge:
Pressure gauge shall be provided near all connections to hydrant system and isolation valves of sprinkler system and where required. Pressure gauge shall be stainless steel
100 mm dia gunmetal Bourden type with a scale range from 0 to 15 Kg/cm2
and shall be constructed as per IS 3624. Each pressure gauge shall have a siphon tube connection with ball valve, tapping and connecting pipe and nipple. The gauge shall be installed at appropriate level and height for easy readability
13.14 Branch Pipe:
Gun Metal Standard Branch Pipe shall be used conforming to IS : 903 with gun
metal nozzle of 20 mm (nominal internal dia) to fit standard instantaneous type
63mm dia hose coupling.
13.15 Pendent /Upright Type Sprinkler Head:
13.15.1 Sprinkler heads shall be of quartzoid bulb type with bulb, valve assembly,
yoke and the deflector. The sprinkler shall be of approved make and type with 15
mm nominal dia outlets.
13.15.2 The bulb shall be made of corrosion free material strong enough to withstand
any water pressure likely to occur in the system. The bulb shall shatter when the
temperature of the surrounding air reaches at 680
C.
13.15.3 The nominal bore shall be 15 mm dia and colour of liquid shall be Red.
13.15.4 The Sprinkler head shall bear approval of FOC/UL/FM.
13.16 Installation Control Valve for Sprinkler:
13.16.1 The installation control valve shall be double seated clapper type check valve. The
body and cover shall be made from cast iron to IS: 210 grade FG- 200. The seat
140
and seat clamp shall be made from bronze to IS: 318, LTB II grade. The sealing to
the seat shall be neoprene gasket. The hinges pin and ball shall be from stainless
steel.
13.16.2 It shall be vertically mounted and the direction of water travel shall be indicated on
the surface. It shall be rated to 12 kg/cm2 and tested to 25 kg/cm2 pressure.
13.16.3 A by-pass check valve shall be fitted to adjust minor and slow variations in water
pressure for balancing so as to avoid any false alarm.
13.16.4 The valve shall also be provided with a test control box. The box shall house a lever
to test and operate the ICV. A brass strainer shall also be provided at the point
of water supply to the alarm gong. A retarding chamber shall also be provided.
The chamber shall be able to balance the water pressure in case of water line
surges.
13.16.5 Each installation control valve shall have two sets of pressure gauges with brass ball
valve type shut off.
13.16.6 A water motor Alarm shall also be provided. This shall be mechanically operated by
discharge of water through an impeller. The drive bearing shall be weather
resistant. A strainer shall be provided on line before the nozzle.
13.16.7 A brass automatic ball drop valve with the retard chamber shall also be provided.
13.17 Flow Switch:
Flow switch shall have a paddle made of flexible material of the width to fit within the pipe bore. The terminal box shall be mounted over the paddle/pipe through a connecting socket. The switch shall be potential free in either N O or N C operation of a single sprinkler head. The terminal box shall have connections for wiring to the Annunciation panel. The seat shall be of stainless steel. The flow switch shall have IP: 55 Protection. It should operate even with the flow of one Sprinkler bursting
13.18 Fire Man’s Axe:
Fire man’s axe for fire fighting purpose shell be used conforming to IS:926 – 1985
13.19 Painting:
All hydrant pipes shall be finished with post office red colour paint. All M.S. pipes shall first be cleaned thoroughly before application of primer coat. After application of 2 coats of Red oxide primer, two coats of enamel paint shall be applied. Wherever required all pipe headers shall be worded indicating the direction of the pipe and its purpose such as “TO RISER NO 1” etc.
13.20 Testing:
13.20.1 All piping in the system shall be tested to hydrostatic pressure of 13.5 Kg/Sq.cm
without drop in pressure for atleast 2 hours.
13.20.2 Rectify all leakages, make adjustments and retest as required and directed.
141
14.0 IS CODES FOR DESIGN, MANUFACTURE, ERECTION, TESTING AND TRAIL OPERATION OF PIPING VALVES ETC.:
14.1 The following codes and standards and their subsequent modifications shall apply for the
design, manufacture, shop testing, erection, fabrication at site, resting and trial operation of piping, valves and specialties requirements:
14.1.1 IS: 554 : Dimensions for pipe threads where pressure tight joints are required on the
threads. 14.1.2 IS: 638 : Sheet rubber jointing and rubber insertion jointing.
14.1.3 IS: 778 : Copper alloy gate, globe and check valve for water work purposes.
14.1.4 IS: 14846 : Sluice valves for water –works purposes (50 mm to 1200 mm).
14.1.5 IS: 901 : Couplings, double male and double female, instantaneous pattern for fire fighting.
14.1.6 IS: 1239 : Mild steel tubes, tubulars and other wrought (Part I & II ) steel fittings.
14.1.7 IS: 884 : Swinging type wall mounted hose reel with drum.
14.1.8 IS: 388 : Hose tubing.
14.1.9 IS: 4038 : Foot valves for water-works purposes. 14.1.10 IS: 5290 : landing Valves.
14.1.11 IS: 10221 : Anti corrosion treatment for underground MS pipes.
14.1.12 IS: 5312 : Swing check type reflux (non-return) valves.
15.0 FIRE EXTINGUISHERS:
15.1 Scope of Work:
Without restricting to the generality of the foregoing the work shall inter-alia consist of the following:
a) Installation of fully charged and tested fire extinguishing hand appliances CO2 and
dry chemical powder type as required by these specifications and drawings.
15.2 Portable Fire Appliances Requirement, Type and Location as per Fire Authority:
Portable Fire appliances as mentioned below :-
a) ABC Dry Powder fire extinguisher IS : 15683 – 2006 -6 Kg & 9 kg capacity .
b) CO2 Gas Fire extinguisher IS 15683 – 2006 – 4.5 Kg capacity.
c) CO2 Water type Fire extinguisher IS 2878 – 9 litre capacity and
d) Fire bucket IS : 2546 4 Nos. shall be installed at following places :-
142
i) Electric meter Rooms. ii) Lift machine Rooms. iii) Pump Rooms.
15.2.1 Hand appliances shall be installed in readily accessible locations with the appliance
brackets fixed to wall by suitable anchor fasteners or by means of floor mounted supports.
15.2.2 Each appliance shall be provided with an inspection card indicating the date of
inspection, testing, change of charge and other relevant data. 15.2.3 All appliances shall be fixed in a true workman like manner truly vertical and at
correct locations. Identical type of extinguishers shall be of same make and shall have similar method of operation.
16.0 COMMISSIONING & TESTING:
16.1 Hydrant System:
16.1.1 Pressurise the fire hydrant system by running the main fire pump and after attaining
the required pressure shut off the pump.
16.1.2 Open byepass valve and allow the pressure to drop in the system. Check that the jockey
pump cuts-in and cuts out at the pre-set pressures. If necessary adjust the pressure switch for the jockey pump. Close bye-pass valve.
16.1.3 Open hydrant valve and allow the water to flow into the fire water tank in order to
avoid wastage of water. The main fire pump should cut-in at the pre-set pressure and should not cutout automatically on reaching the normal line pressure. The main fire pump should stop only by manual push button. However the jockey pump should cut-out as soon as the main pump starts.
16.1.4 Switch off the main fire pump and test check the diesel engine driven pump in the same
manner as the electrically driven pump.
16.1.5 When the fire pumps have been checked for satisfactory working on automatic controls, open fire hydrant valves simultaneously and allow the hose pipes to discharge water into the fire tank to avoid wastage. The electrically driven pump should run continuously for eight hours so that its performance can be checked.
16.1.6 Check each landing valve, male and female couplings and branch pipes for
compatibility with each other. Any fitting which is found to be incompatible and does not fit into the other properly shall be replaced by the contractor. Landing valves shall also be checked by opening and closing under pressure.
16.2 Sprinkler System:
16.2.1 Start the sprinkler pump and develop the required pressure in the sprinkler pipes.
16.2.2 Open the test valve to test the automatic starting of the pump. If necessary,
make necessary adjustments in the setting of pressure switch. The sprinkler installation valve and associated water gong alarm shall also operate when the test valve is open. This operation is to be done for each and every section of the sprinkler system and the alarm for each section (via flow switch) shall be checked for operation.
16.2.3 After satisfactory operation of the pump the Contractor shall set up mock fire and test the
system.
143
16.2.4 Check all annunciations by simulating the alarm conditions at site. 17.0 HANDING OVER:
17.1 All commissioning and testing shall be done by the contractor to the complete
satisfaction of the Engineer-in-Charge, and the job handed over to the Engineer-in-Charge, or his authorized representative / client department.
17.2 Contractor shall also handover, to the Engineer-in-Charge, all maintenance & operation
manuals and all other items as per the terms of the contract.
18.0 GUARANTEE:
18.1 The contractor shall submit a warranty for all equipment, materials and accessories
supplied by him against manufacturing defects, malfunctioning or under capacity functioning.
18.2 The form of warranty shall be as approved by the Engineer-in-Charge.
18.3 The warranty shall be one year from the date of commissioning and handing over.
18.4 The warranty shall expressly include replacement of all defective or under capacity
equipment. Engineer-in-Charge may allow repair of certain equipment if the same is found to meet the requirement for efficient functioning of the system.
18.5 The warranty shall include replacement of any equipment found to have capacity lesser
than the rated capacity as accepted in the contract. The replacement equipment shall be approved by the Engineer-in- Charge.
55 Double door high pressure autoclave Natt steel/Staris
150
Technical data Sheet to be filled by tenderer
(Contractor shall submit catalogues of the equipment offered by them):
Sr.No. Equipment description unit Condition of service
1. Water Cooled Screw Compressor Type Chilling Machines
a. Manufacturer /Make&Country of origin
b. Model No.
c. Type(Hermatic/semihermatic)
d. No.of compressors
e. Rated Capacity ( Nominal)
f. Actual capacity (conditions of tender)
g. Refrigerant
h. Working Pressusre (PSI)
Suction
Discharge
i. Maximum (RPM)
j. Mode of start
k. Quantity of refrigerant for initial charge
l. Power Consumption
a) Total power consumption at full load Including fans/heater etc.
IKW/TR (actual for the chilling machines)
100% Load 90% Load 75% Load 50% Load 25% Load
m. Starting Current per compressors
n. Running current per compressor
o. Type of capacity control
q. Range of capacity control
r. safety Devices/controls
s. Monitoring Devices
t. Type of Bearings
151
Compressor Motor :
a. Motor Manufactures
b. Type
c. HP
d. Electrical characteristics
e. Method of starting
f. class of insulation
g. starter manufacturer
h. full load current
i. starting current
j. no load current
k. Type of vibration isolation for chilling machine
Condenser :
a. Manufacturer/Make
b. Model
c. Type
d. Coil Face area
e. No.of coil rows
f. Tube length
g. wall thickness of tube
h. tube diameter inner/outer (mm)
i. tube surface (inside)ft2
j. tube surface (outside)ft2
k. total no. of tubes
l. Type of fins
m. Material and spacing of fins
n. Refrigerant temp (F)
o. No. of rows
152
p. air flow (cfm)
q. Air velocity (fpm)
r. Type of fan
s. cfm of each fan
t. no.of total fans for each package
u. static pressure of fan (mm)
v. Air temperature
Entering –F Leaving – F
w. Type of control / safety
x. Condensing temperature F
y. Overall Dimension of the chilling machine (in meter)
z. Operating Weight of the chilling Machine (Kg)
Hot water Generator :
i. Heat out put (KW) :
ii. Total Heating Surface (m2) :
iii. Max.Outlet Temperature (F) :
iv. Temperature rise (Delta T) F :
v. Pressure Drop (m) :
vi. Power supply (V/Hz/PH)
vii. Total connected Load
viii. Dimension (LXWXH mm)
Pumps:
i. Water hold-up (ltrs) _______________
ii. Dry Weight (kg) CHW HW________ Pr. / Suc._____________________
a. Manufacturer :
b. Model No. :
c. Capacity USGPM
153
d. Head Meter
e. Speed RPM
f. Motor Rating KW
g. Type of Motor
Air Handling Units :
a. Manufacturer -
b. Casing -
c. Coil -
d. Blower -
e. Type -
f. Overall Dimension -
g. Unit Weight -
h Air Quantity -
i. Fan oulet velocity -
j. Design static pressure -
k Fan balancing static/and or Dynamic -
h. Fan motor output -
i. Motor location i.e inside or outside the fan section -
j. Type of casing finish -
k. Type of drive/vibration Isolators -
AHU Coil Data :
a. Cooling Coil Area -
b. No.of Rows -
c. No.of fins/cm -
154
d. Tube Material -
e. Tube dia -
f. Coil Header materia -
g. Thickness of tube -
5. CASSETTE A/C UNITS :
a. Manufacturer -
b. Casing -
c. Blower -
d. Type -
e. Overall Dimension -
f. Unit Weight -
g Air Quantity -
h. Cooling Coil Area -
i. No.of Rows -
j. No.of fins/cm -
k. Tube Material -
l. Tube dia -
m. Coil Header material -
n. Thickness of tube -
o. Fan motor output -
p. Impeller dia -
q. material of Impeller -
r. No.of fans & Speed -
s. Capcities(cfm/TR) -
t. Type & make of Automatic controls -
155
u. Type of vibration isolators -
6. Exhaust Fan /Fan section :
a. Make -
b. Air Quantity at Operational speed -
c. Static Pressure -
d. Diameter/size
e. Type -
f. Current characteristics -
g. Motor Rating -
h. Type of Motor -
i. Fan outlet Speed -
j. Fan Speed -
k. Motor Speed at the duty conditions -
l. Operating Weight -
m. Type of vibration isolators -
o. Type of bearings -
p. Performance curves -
q. Motor Efficiency -
r. Class of Insulation -
7. BMS & Electrical Controls
Make and Model of the following :
a. Flow Switch -
b. 2/3 – way Valves -
c. Operating Voltage -
d. Field Sensors (Pressure, Temp. & RH) -
156
e. Pessure Guage -
f. Thermometer -
g. DDC Controller / software -
h. Central Control Station / PC configuration & Monitor -
8. Electrical Accessories :
Make of the following
a. Motor Control Centre (MCC) -
b. Air Circuit Breaker -
c. MCCB -
d. MCB -
e. Rotary Switch -
f. Soft Starter -
g. Auto-transformer starter -
h Direct on line starter -
i. Contactor -
j. Current transformer -
k. Single phase preventor -
l. Push botton/changeover switch -
m. Ammeter/Voltmeter -
n Relays -
o Indicating Lamps -
p. Cables/wires -
9. Water Piping ;
a. Make of pipes/class of pipes -
b. Pipe wall thickness -
157
c. Valves & Strainers Make Material
i. Butterfly Valve
ii. Balancing Valve
iii. Ball Valve
iv. Ball valve with strainer
v. Pot Strainer
vi. Flexible connections
vii. Check Valve
viii. Gate Valves
ix. Globe Valves
x. Y-Stariners
pressure Guage
i) Make
ii) Model
iii) Stem type Industrial Thermometer
Galvanised Steel Sheets :
a. Make
b. Gauge/Thickness
c. Class of galvanizing
9. Grilles/Diffusers & Dampers/Louvers -
Make/Material/Guage
Insulation
a. Manufacturer
b. Duct Insulation Material/Density
c. Duct Acc. Lining Material/Density
d. Pipe Insulation Material/density
Modular Clean room syste
a) Manufacturer
b) Detailed specifications (wall / ceiling)
c) Double toughened glass air tight window system
d) Clean room compatible double skin door with closer
e) Air tight “0”leak door system
f) Emergency door with panic bar
g) Flooring system details
h) SS-304 Laboratory furniture as per GA Drg -
158
Access Control & Door Interlock system
a. Manufacturer -
b. Detailed specifications -
c. Compatible interface with central BMS system -
d. Emergency de-activation system of electro-magnetic locking-
e. Security and display system -
g. Accessibility management protocol -
159
(PART- F)
(PROPOSED DRAWINGS)
160
161
162
163
164
165
166
167
168
169
170
(PART- G)
(PRICE BID)
171
Price Bid
Name of work :- Design, construction, testing, commissioning, validation and other associated works of the Bio-Safety Level-3 (BSL-3) laboratory facility on turnkey basis and its comprehensive operation during the defect liability period of two years at NCR Biotech Science Cluster (NCR-BSC), Faridabad, Haryana.
Item
No.
Description of item Unit Amount in Fig.
(In Rs.)
Amount in
words (In
Rs.)
01
Design, construction, testing, commissioning,
validation and other associated works of the Bio-
Safety Level-3 (BSL-3) laboratory facility on
turnkey basis and its comprehensive operation
during the defect liability period of two years at
NCR Biotech Science Cluster (NCR-BSC),
Faridabad, Haryana
The works shall be executed as per the
scope of works, approved designs and
detailing, specifications, drawings, samples,
prototypes etc. Any work not specifically
mentioned but essentially required for
meeting the purpose and intent of setting
up of the proposed BSL-3 Laboratory
shall be deemed to be included in the
scope of works. All fixed equipment’s like
Autoclaves, Bio-Safety Cabinets, Pass
Boxes, HVAC system components, Hot
water generator, Air compressor,
Computers, Laboratory work stations and
all other equipment’s and systems
required for making the laboratory
operational and functional shall be provided
and included in the scope of works except
for the equipment’s used for scientific research
purpose.
01 Job
(Turnkey
lump sum
basis)
Total
1. The prices are to be quoted in the above mentioned form and shall include the cost of all the material, equipment’s , tools & tackles ,labor accessories etc. required for the successful execution and completion of the work in all respect as required as per the scope of works ,approved specifications, designs and drawings on “Turnkey Basis”
2. The bidder shall quote the rates in figures and in words and extend the amount to the ‘AMOUNT’ column.
3. The bidder shall submit breakup of Lump Sum price along with description of all items, quantity, rate and amount details etc. in enclosed BOQ along with this sheet.
172
Detail description of all items, quantity, rate and amount as per bill of quantity(BOQ)
S No Item Description Unit Qty. Rate Amount
(Rs.)
Sub- Head - I , Earth Work
1.1 Earth work in excavation by mechanical means
(Hydraulic excavator) / manual means over areas
(exceeding 30cm in depth. 1.5m in width as well as 10
sqm on plan) including disposal of excavated earth, lead
upto 50m and lift upto 1.5m, disposed earth to be
levelled and neatly dressed.
All kinds of soil cum 1121
1.2 Earth work in excavation by mechanical means
(Hydraulic excavator) / manual means over areas
(exceeding 30cm in depth. 1.5m in width as well as 10
sqm on plan) including disposal of excavated earth, lead
upto 50m and lift upto 1.5m, disposed earth to be
levelled and neatly dressed.
Hard rock (blasting prohibited) cum 748
1.3 Earth work in excavation by mechanical means
(Hydraulic excavator) / manual means in foundation
trenches or drains (not exceeding 1.5 m in width or 10
sqm on plan) including dressing of sides and ramming of
bottoms, lift upto 1.5 m, including getting out the
excavated soil and disposal of surplus excavated soil as
directed, within a lead of 50 m.
All kinds of soil cum 141
1.4 Earth work in excavation by mechanical means
(Hydraulic excavator) / manual means in foundation
trenches or drains (not exceeding 1.5 m in width or 10
sqm on plan) including dressing of sides and ramming of
bottoms, lift upto 1.5 m, including getting out the
excavated soil and disposal of surplus excavated soil as
directed, within a lead of 50 m.
Hard rock (blasting prohibited) cum 94
173
1.5 Filling available excavated earth (excluding rock) in
trenches, plinth, sides of foundations etc. in layers not
exceeding 20cm in depth, consolidating each deposited
layer by ramming and watering, lead up to 50 m and lift
upto 1.5 m.
cum 141
1.6 Extra for every additional lift of 1.5 m or part thereof in
excavation /banking excavated or stacked materials.
All kinds of soil cum 285
Ordinary rock or hard rock : cum 285
1.7 Supplying and filling in plinth with Jamuna sand under
floors, including watering, ramming, consolidating and
dressing complete.
cum 98
1.8 Disposal of surplus earth with in NII campus with in
1.00 kilometre lead inclusive of all lift complete as per
direction of Engineer in-Charge.
cum 1121
1.9 Disposal of excavated rock with in NII campus with in
1.00 kilometre lead inclusive of all lift complete as per
direction of Engineer in-Charge.
cum 842
TOTAL
Sub - Head - II , Concrete Work
2.1 Providing and laying in position cement concrete of
specified grade excluding the cost of centering and
shuttering - All work up to plinth level :
a 1:4:8 (1 Cement : 4 coarse sand : 8 graded stone
aggregate 40 mm nominal size).
cum 137
b 1:5:10 ( 1 Cement : 5 coarse sand : 10 graded stone
aggregate 40 mm nominal size)
cum 10
2.2 Providing and laying cement concrete in retaining walls,
return walls, walls (any thickness) including attached