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PROPOSED PARKCITY HANOI CLUBHOUSE AT LE TRONG TAN STREET, HANOI,
VIETNAM
Mechanical & Electrical Installation Specification and
Drawings
March 2015
THAM & WONG M&E (VIETNAM) CO., LTD No.6, 2nd alley, Pham
Tuan Tai street, Cau Giay District, Hanoi
Tel: +84 43748 0327 Fax: +84 43755 8903
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PARKCITY ` Clubhouse Facilities ParkCity at Le Trong Tan Ha Noi,
Viet Nam Mechanical & Electrical Specification Rev 0
Tham & Wong M&E (Viet Nam) Page 2
CONTENTS Page
1.0 PROJECT TEAM
.........................................................................................................................
3
2.0 GENERAL REQUIREMENTS
.....................................................................................................
4
3.0 SCOPE OF WORK
....................................................................................................................
22
4.0 RESPONSIBILITIES OF CONTRACTOR
.................................................................................
27
5.0 ELECTRICAL SERVICES
.........................................................................................................
29
6.0 AIR-CONDITIONING & MECHANICAL VENTILATION SERVICES
..................................... 142
7.0 PLUMBING &
SANITARY.......................................................................................................
191
8.0 FIRE PROTECTION SERVICES
.............................................................................................
212
9.0 SWIMMING POOL SERVICES
...............................................................................................
242
10.0 SCHEDULE OF UNIT RATE
...................................................................................................
258
11.0 SCHEDULES OF TECHNICAL DATA
....................................................................................
310
12.0 SCHEDULE OF SUB-CONTRACTOR
...................................................................................
331
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Tham & Wong M&E (Viet Nam) Page 3
1.0 Project Team
Owner Vietnam International Township Development Jsc
(Parkcity)
No.8, Quang Trung Road, Ha Dong - Hanoi, Vietnam Tel +84 4 3355
3366 Fax +84 4 3355 3365
Architect Archicentre (Vietnam) Co.,Ltd.
31 Phan Boi Chau Street, Ward 14, Binh Thanh District Ho Chi
Minh City, Viet Nam Tel: +603 5633 2455 / +84 83841 3883 Fax: +603
5633 8213 / +84 83841 8516
Structural & Civil engineer
Tham & Wong VN Co.,Ltd.
4th
Floor, Packsimex Building, No.52 Dong Du, District 1 Ho Chi Minh
City, Viet Nam Tel: +84 8 3821 7737 Fax: +84 8 3821 7736
M&E Consulting Engineer
Tham & Wong M&E (Vietnam) Co.,Ltd.
No.06, 2nd
Alley, Pham Tuan Tai street, Cau Giay District Ha Noi, Viet Nam
Tel: +84 43748 0327 Fax: +84 43755 8903
Landscape Designer
Site Concepts International (Vietnam) Company Limited Landscape
Architecture
9th Floor WMC Tower, 102 A-B-C Cong Quynh Street, Pham Ngu Lao
Ward, District 1, Ho Chi Minh City, Vietnam. Tel: (84) 8 3920
9895
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2.0 General Requirements
2.1 General
This Specification describes the standards, performance,
materials, manufacture, supply, installation, testing,
commissioning, operation and maintenance of all systems described
in this document and shown on the Drawings.
The intent of the Contract is to provide for the completion in
every detail of the Contract Works, and unless otherwise stated,
the Contractor shall furnish all labour, superintendence,
materials, tools, equipment, storage, permits, certificates,
drawings, temporary work, inspection, testing and all accessories,
auxiliaries and incidentals necessary to complete the Contract
Works in a proper, safe, thorough and skilful manner to the
satisfaction of the Employer/Engineer.
2.2 Site of the Contract Works
The site is located as shown on the Tender Drawings.
2.3 Climatic Conditions
The Contractor is deemed to be familiar with climatic conditions
prevailing in Vietnam and to be aware of the high temperature (up
to 40
0C) and the high relative humidity.
The Contractor in submitting a tender will be assumed to warrant
that all materials and items of equipment are suitable for
continued use and/or operation in the various climatic conditions
encountered.
2.4 Standards
The Contract Works shall fully comply with all statutory
obligations and regulations together with any amendments made
thereto as required. The Contractor shall arrange for all
submissions, liaisons and pay the cost of all statutory inspections
and certificates. The payment to the Authorities shall be paid well
in advance so as to meet with the construction programme. Where
applicable, the Installation shall comply with the statutory
obligations and regulations and consistent with good practice in
Singapore to satisfy the Engineers requirements.
Singapore Code of Practices;
British Standards Institution or other approved international
standards;
Chartered Institution of Building Services Engineers;
Air Conditioning and Refrigeration Institute;
American Society of Heating, Refrigeration and Air Conditioning
Engineers;
The Regulations for the Electrical Equipment of Buildings
published by the Institution of Electrical Engineers (London);
Environmental Protection Department;
Pollution Control and Drainage Act and Regulations;
Environmental Public Health Act and Regulations and Codes;
Building Control Act and Regulations;
Fire Safety Act and Regulations;
Factories Act and Regulations;
Public Utilities Act and Regulations;
Fire Precautions for Building;
Handbook on Energy Conservation in Building and Building
Services;
Handbook on Application for Electricity Supply;
Code of Practice for Info-Communications Facilities in
Buildings;
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NPQS
Any other local authority having jurisdiction; and
All other requirements from Authorities having jurisdiction over
the installation.
Viet Nam Standard
The work shall be carried out by a registered Licensed Worker
approved by the relevant authority for each particular category of
work. The Contractor shall submit for approval the following within
one month of award of Contract for approval: Licensed Water Service
Plumber
Sanitary/Sewerage Registered Licensed Plumber
Licensed Electrical Worker
Where the materials or equipment offered comply with other
standards, the Contractor shall demonstrate they meet the
requirements of the Specification and details shall be provided to
the Architect for approval.
The Contractor shall provide and perform all necessary
inspections and maintain quality and workmanship in his works to
ensure compliance with the Specification.
2.5 Building Provisions
Certain provisions will be made in the existing Building for the
accommodation of the Contract Works. These provisions shall include
space allocation, holes / openings through structural slabs, walls
and beams, plant bases, inserts etc. The modified building layout
incorporating basic M&E Installations are shown in the tender
Documents. The Contractor shall provide comprehensive builders work
requirements for approval prior to the execution of works. It shall
be the Contractors responsibility to ensure that all the required
holes/openings and inserts and their setting out dimensions are
incorporated in the structure prior to the formation of openings.
Where additional holes/openings are required after concrete has
been poured, such holes shall be provided at the Contractors
expense, unless they are covered on a duly authorized basis by the
Employer on an instruction issued by the Engineer. The Contractor
shall also be responsible to ensure that these holes are correctly
reserved and protected during construction. The floor and wall
openings shall be provided by the Contractor. The Contractor shall
take the responsibility to ensure the opening is technically sound
and approved by their employed structural engineers if necessary.
Infill and repairs around openings in the building structure for
the passage of building services shall be carried out by the
Contractor. Where pipes and services pass through walls, floors,
etc.(including floors in ducts), the Contractor shall provide pipe
sleeves and in fill between the sleeves and pipe/services. Concrete
bases and/or foundations required for the support or anchoring of
equipment shall be provided by the Contractor except where
otherwise specified. The Contractor shall provide the dimensions
and locations for all bases to be provided or set in the structure.
The Contractor shall furnish the bolts to the Builder for setting
the bolts in position. Anchor bolts in concrete bases shall be
securely fixed in position before concrete is poured. Templates
shall be furnished by the Contractor. All structural and supporting
steelwork required for the installation of the Contract Works shall
be supplied and fixed by the Contractor, except otherwise
specified.
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2.6 Limited Access
The Contractor shall note the limited access available in
ceilings, pipe and duct shafts. All cables busbars, duct work and
pipework should be installed in the correct sequence to ensure that
all services shall be accommodated. Where works by other trades are
to occupy the same pipe and duct space, care must be taken to leave
clear access for sequential or future provision of these services
within builders work shafts, plant rooms and false ceilings,
etc.
2.7 Co-ordination Between Trades
The acquisition and checking of all documents and drawings from
the Engineer to be provided under the Contract and to ensure the
compatible integration of all the work. Such co-ordination shall
include recommending to the Engineer for approval design solutions
to eliminate any conflict between elements of the work, and to
provide adequate space between elements of the work for subsequent
maintenance of the various installations in accordance with good
practice.
All checking, co-ordination and where necessary proposal to
overcome conflicts in accordance with the above shall be executed
well in advance of the programme for carrying out the works.
The provision of co-ordinated working drawings incorporating all
design solutions approved by the Engineer and showing the
integration of all services to be executed by the Contractor.
The establishment of a detailed sequence of work to enable the
expeditious completion of the Works. The Contractor shall closely
monitor the work progress and conflicts resolved in an expeditious
manner.
Liaison and co-ordination of works upon receipt of site
instruction by the Engineer throughout the duration of the
Contract.
Co-ordination of government submission, testing and inspection
of various building services works in a timely manner to comply
with building construction programme and building occupation
requirements.
Liaison and co-ordination regarding training requirements to be
provided to the Employer and handing over of the building services
systems. Particular emphasis shall be given to the co-ordination of
testing of various building services systems which require
interface between different Contracts. Testing and commissioning
shall be carried out within the Contract Period and only by
agreement will the Engineer allow certain tests to be carried out
within the Defects Liability Period.
Receipt of lists of defects/outstanding work and liaise with the
Builder for the rectification of defects within the Defects
Liability Period. Co-ordination is deemed to include liaison for
access and the ensure that rectification work is carried out in a
expeditious manner.
2.8 Metric Units The Contractor shall provide all information,
drawings, manufacturers data and materials in metric (S.I.) units
and dimensions or include a conversion table which must be printed
on or within data sheets produced by the manufacturers. Separate
locally produced, e.g. duplicated typed conversions or conversion
tables within the written offer will not be acceptable.
2.9 Notations
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Notations and symbols used throughout the tender documents area
as listed on the abbreviations and symbols sheet of the Drawings.
All other notations used shall have their normally accepted meaning
and where any doubt or ambiguity is found, then the Contractor must
seek clarification in writing form the Engineer at the time of
tender
2.10 Submissions Unless otherwise stated, all submissions to the
Engineer for approval must be made at the times stated in the
various Sections of this Specification. For material/ equipment
submission, detail form of submission information and statement of
compliance with this specification shall be provided for checking.
All submissions must be made early enough in the Contract to enable
the Engineer to fully check each item prior to giving approval. The
Contractor shall ensure that submissions are made at least two
months before any equipment is required to be ordered to meet the
Builders contracts construction programme. The Contractor shall
supply full drawings of all equipment to a scale suitable for the
fullest understanding by the Engineer of the design details but in
any event not less than a scale of 1:50, within the time required
by the Engineer that they may be incorporated into other elements
of works and as instructed by the Engineer, together with the
fullest particulars and details of positions where power for any
elements is required. The Contractor shall be responsible for
ensuring that the works are carried out in strict accordance with
the distributed working drawings. A schedule of submissions for
individual, working drawings and equipment shall be submitted for
checking within one week after award of Contract. Drawings showing
locations of structural openings for services shall be submitted
for consideration at least one month prior to erection of formwork
or reinforcement at the affected area. No claims for extensions of
time or additional costs shall be entertained as a result of the
Contractors failure to make submissions in adequate time. If, in
the opinion of the Engineer, the Contractors failure to make his
submissions in adequate time may result in a delay in the
completion of the project as a whole, then the Engineer shall have
the authority to instruct the Contractor to order materials and or
equipment from a source approved and nominated by the Engineer at
no increase to the Contract Sum. If the Contractor subsequently
fails to place such orders within a period of two weeks from
receipt of the Engineers instruction, then the Employer shall have
the right at his sole discretion to order the materials and/or
equipment directly from the manufacturer(s). The cost of all such
orders, including freight, shipping, insurance, handling and
administrative charges shall be deducted from the Contract Sum or
recovered in any other method at the discretion of the Employer.
The Contractor shall on request, or where specified elsewhere,
submit to the Engineer samples of materials and/or workmanship.
Such samples shall be approved in writing before the appropriate
equipment or installation work is carried out. Such samples shall
be retained by the Engineer as the criteria of the workmanship or
material to be supplied and any items not so complying may
forthwith be rejected by the Engineer and shall be replaced by the
Contractor without increase to the Contract Sum.
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2.11 Sizes of Plant and Equipment The Contractor shall be
required to demonstrate that the duties required of the equipment
by the Specification are attainable by the Contractors proposed
plant or equipment. Physical sizes of all plant and equipment are
to be suitable for the spaces allocated for the accommodation of
such plant and equipment, taking into account the requirement of
access for maintenance purposes. Before ordering equipment, the
Contractor shall provide the Engineer with full details of the
weights of the equipment for purposes of determining floor
loadings, etc.
2.12 Makes and Types of Equipment The Contract has been drawn up
in such a manner as to allow firms tendering to submit proposals
incorporating their particular types of equipment and installation
techniques while at the same time ensuring that that building
services comply fully with the basic requirements and fit into the
Building, having regard to the Engineering and planning
requirements and to the provisions which are being arranged in the
structure for the accommodation of the Contract Works. The Employer
reserves the right to reject any tender which disregards the basic
requirements or intentions of this Contract, or which seeks to vary
the scope of the Contract Works, the Contract Conditions or any
other requirements of the Tender Documents. In selecting makes and
types of equipment, the Contractor shall ascertain that facilities
for proper maintenance, repair and replacement can be provided
without such a delay as could cause inconvenience or loss to the
Employer.
2.13 Working Drawings
The Contractor is to note that the contract Drawings issued for
the installation indicated the general design intent. The
Contractor shall be responsible for the preparation and
co-ordinating his working drawings with the services installations
of other trades and with the fabric and the building structure, and
for co-ordinating working drawings to facilitate co-ordination of
the installation of all services in the correct sequence and
position. All working drawings must be submitted to the Engineer
and his confirmation must be obtained that such drawings comply
with design intent prior to execution of the respective building
services installation works. Co-ordination working drawings shall
be submitted at the same time as the individual services working
drawings to allow the Engineer to satisfy himself that
co-ordination of the Works has been implemented. These drawings
shall be based on the Contract Drawings and shall take into account
any modification either to the Building or to the installation
which may have taken place during the course of the works and shall
be correctly related to the details of the actual items of plant
and equipment installed. The Contractor shall prepare all equipment
schedules and all necessary wiring diagrams, including internal
wiring diagrams for items of electrical equipment and diagrams
showing the interconnections and interface between different
equipment and services. Five copies of all such drawings,
schedules, diagrams, shall be submitted to the Engineer for
approval before any work is commenced. After receiving written
approval, six copies of all stamped approved drawings, schedules,
shall be supplied by the Contractor, free of charge, for
distribution. The Contractor is to allow in his programme for
amendment and/or resubmission of drawings and schedules to the
Engineer and this time shall include the periods necessary for
co-ordinating with the Builder and other Contractors for the
preparation of the aforesaid drawings
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and schedules and periods required by the Engineer for checking
same. The Engineer shall endeavour to reply to the contractors
Submissions within in a period of 2 weeks. No claim will be
entertained nor extension of time be granted arising out of any
amendment or resubmission required. The Contractor shall be fully
responsible for updating the installation drawings based on any
changes to the general plans which may from time to time be
required. Checking of working drawings by the Engineer shall not
relieve the Contractor of his responsibility for the technical,
dimensional and co-ordination content of these working drawings, in
accordance with the Engineers design drawings and specification and
in observation of all relevant standards, codes and ordinances
whether referred to in the specification or of a statutory
nature.
2.14 Builders Work Drawings The Contractor shall submit to the
Engineer for approval and subsequent distribution showing details
for all builders work required in connection with installation of
all services. In case where preliminary builders work information
has already been given on the Drawings, such information is to be
checked and verified by the Contractor for incorporation in his own
drawings. It is the intention that all holes, inserts and chases,
shall be incorporated within the structural work as it proceeds and
not cut out subsequently, except in so far as may be necessary due
to subsequent authorized variations to the Contract Works. The
Contractor shall acquaint himself throughout the period of the
Builder Works with the Builders detailed construction programme and
shall prepare the builders work drawings in such order and at such
times as to enable them to be checked and approved and subsequently
issued to the Builder not less than four weeks before the actual
construction is planned to take place. No claims will be
entertained in respect to additional holes, inserts and chases,
that may be required after the structure has been erected unless
these are necessary due to authorized variations to the Contract
Works.
2.15 Maintenance and Operation Manual Prior to the issuance of
the Completion Certificate, the Contractor shall submit in
triplicate full operation and service and maintenance manuals for
the complete installation. These manuals shall be typed on good
quality paper and neatly bound into a manual having rigid covers
with good lettering, giving the names of the Employer, Project and
M&E Contract and approximate date of completion. A sample shall
be submitted to the Architect for approval before final
submission.
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The manuals shall contain and be set out as follows : Section 1
Maintenance Personnel
List to include name, address, fax and telephone number for
normal and emergency use separately.
Section 2 System Summary & General Description &
Operating Instruction
Each system, separately, shall commence with the relevant Design
Criteria, comprehensive functional description of equipment.
Instructions for operating each items of plant, including
adjustment of controls, etc
Section 3 Emergency/Re-Start Instructions
Each items of plant to be listed in the same order as for
Section 2.
Instructions to procedures after a fault, and for Plant
production.
Section 4 Equipment List & Schedules & Manufacturers
Literatures & Spare Parts
Include manufacturers' and suppliers' contact and serial
numbers.
Literature clearly designating the relevant item(s) of
equipment, including detailed specification. Order as per Section
2, each with its own sub-file divider. Catalogue listing, including
source of supply.
Section 5 Maintenance Schedules & Maintenance
Instructions
Proforma copy detailed schedules of periodic checks and
maintenance and replacement procedures.
Include description of each items of equipment or component in
order as per Section 2 listing, and with a complete phases and
procedures preventative maintenance.
Section 6 Commissioning Data
Include schedule of control and cut-out settings, copies of test
certificates and progressive test data obtained during construction
and installation.
Section 7 Guarantee, Liabilities, Warranties
Section 8 Drawings
List all working drawings produced for the works.
Note: In order that each set of volumes for each of the M&E
installations are uniform, where one of these sections is not
relevant to a particular Service, the Contractor shall note against
that section in the main index: "Not Applicable".
2.16 As-Built Drawings
Upon completion of the M&E Contract Works and as a condition
precedent to the certification that the work is complete, the
Contractor shall furnish to the Engineer one set of
reproducible
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transparencies and two sets of prints and one set of electronic
files in CD Rom and in such detail as to enable the employer to
maintain, dismantle, reassemble and adjust all parts of the M&E
Contract Works. The As-built drawings must be drawn in a format
that is suitable for submission to all relevant Authorities and FSB
in particular. a) As-built drawings may be folded and accommodated
in the Operating and
Maintenance Manual if appropriate.
b) As-built drawings should include a diagrammatic layout of the
complete installation with major items of plant suitably referenced
to the schedules and combined services drawing.
c) A set of the as-built drawings should be provided for each
copy of the Operating & Maintenance Manual required to be
provided. In addition, one set of AutoCAD soft copy burned in
CD-ROM/DVD should be provided.
The as-built drawings shall comprise the following:- A)
Electrical Installation
1. Lighting layout plan and lighting control layout plan
(including surface and
concealed cable, trunking/conduit routes on floor, wall and
ceiling). 1. Power layout plan (same as above). 2. Telephone layout
plan (same as above). 3. Data outlet layout plan (same as above).
4. Security layout plan (same as above). 5. Main single line
diagram. 6. Switchboards, sub-switchboards, distribution boards,
consumer units single
line diagram, general arrangement. 7. Schematic diagram for
various systems like Telephone System, Cable TV
System, Security System, Audio / Video Colour Intercom System,
etc.
B) Air-Conditioning and Mechanical Ventilation Installation
1. Technical data/equipment schedule and brand of all A/C
equipment and MV fans.
2. A/C layout plan include any concealed pipings and conduits
clearly demarketed on plan and elevation. The cooling capacity of
each system/ outlet to be indicated.
3. MV layout showing ductwork sizes, air quantity, guide-vane
control and accessories.
4. Control panels location, size and circuit diagrams. 5.
Details of all equipment, model and capacity. 6. Schematic diagram.
7. Operational procedure of selected equipment clearly
indicated.
C) Sanitary and Drainage Installation
1. Inspection chamber c/w pipework connection and gradient, all
invert and top levels indicated.
2. Sanitary pipework layout plan, including sump pump detail (if
any) 3. All models of sanitary fittings: wc, basin, sink, shower,
tap, etc. 4. Soil waste pipe and vent pipe riser duct details. 5.
Schematic diagram of sanitary installation. 6. Catalogues of all
sanitary wares (where applicable), pipes and pipe-fittings. 7.
Operational procedure of selected equipment clearly indicating the
model and
capacity. 8. Control panels location, size and circuit
diagrams.
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9. Manhole c/w pipework connection and gradient, all invert
& top levels indicated
D) Water Supply Installation
1. Water reticulation layout plans. 2. Detail for Water meter
kiosk layout, pump and tank 3. Schematic diagram.of Cold and Hot
water supply systems 4. Operation procedure of pump, electric water
storage heaters. 5. Control panels location, size and circuit
diagrams. 6. Valve chamber c/w pipe work connection, all invert
& top levels 7. Detail of bulk water meter c/w valve
chamber
2.17 As-new Condition At the time of hand over of the Contract
Works, the whole installation shall be in as-new condition. The
Contractor shall, during the course of the Contract, protect all
plant and equipment, and shall restore/repaint as necessary before
completion of the Contract.
2.18 Guarantee The Contractor in providing a specified piece of
equipment or apparatus, whether specified herein by name or whether
of a make selected by the Contractor, shall be deemed to warrant
its satisfactory performance under all working conditions which may
be encountered. Unless otherwise stated in this Specification, the
Contractors guarantee for the Contract Works shall extend for a
period of one year from the expiration of the Defects Liability
Period or the date of issue of the Certificate of Making Good
Defects whichever is the later for the Contract Works. In the event
that any manufacturers guarantees are still within their term of
validity at the end of the Guarantee Period, then all such
manufacturers guarantees shall be assigned to the Employer. All
subsequent rights under the manufacturers guarantees shall be the
Employers. In the event of anything described in the Specification
or shown in the Drawings being, in the Contractors opinion,
unsuitable or inconsistent with his guarantee or responsibilities,
the Contractor shall draw attention to such items at the time of
tendering. Neither the time limit imposed on the Contractors
guarantee, nor the Certificate of Making Good Defects issued by the
Engineer, nor the acceptance of the installation by the Employer,
nor the approval by the Engineer of any material or method shall in
any way absolve the Contractor from his responsibility for any
latent defects in the Contract Works which may become apparent in
the future and which are, in the opinion of the Engineer, due to
the Contractors failure to use materials and methods complying to
this Specification and Drawings.
2.19 Materials and Workmanship All materials supplied and work
carried out shall be the best of their respective kinds and to the
approval of the Engineer. All materials and work shall comply with
British Standards where available. No substitution for approved
materials will be permitted except by permission of the Engineer in
writing. Any cost savings which result from such substitution shall
be credited in full to the Employer. Any extra costs incurred shall
be borne in full by the Contractor.
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The phase or other Approved is deemed to be included whenever
materials are specified by proprietary name. Materials of different
manufacture but of equal quality may be substituted if prior
Approval has been obtained but the rates and prices will not be
changed from those submitted at the time of tender. The standard of
equal quality, together with consideration of design suitability
and appearance, will be strictly applied and the Contractor will be
required to pay for independent testing to demonstrate equal
quality prior to seeking Approval for any alternative to the
proprietary brand specified. Where a choice of manufacturer is
permitted for any material, advise the Engineer of that choice
early enough to allow deliveries to be arranged in compliance with
the construction programme. No change in the source of supply will
be approved after deliveries have commenced.
2.20 Rejection of Unsuitable Materials The Engineer shall be at
liberty to reject any plant, materials and workmanship not
complying with the requirements of this Specification or which are
in any way unsuitable and to order their removal and replacement,
without increase to the Contract Sum. The Engineers decision as to
what constitutes compliance with requirements and suitability shall
be final and binding; the true intent and meaning of the Contract
being that the whole of the Contract Works shall be completed to
the satisfaction of the Engineer. No rejected item shall be
considered as a reason for failure to meet the completion date of
the project.
2.21 Packing and Protection All plant, equipment, apparatus,
materials and parts shall be delivered to the Site in a new
condition, properly packed and protected against damage due to
handling, adverse weather or other circumstances, and as far as
practicable, they shall be kept in the packing cases or under
protective coverings until required for use. Any items suffering
damage in transit or on the Site shall be rejected and replaced
without extra cost to the Employer. No item so rejected will be
considered as a reason for failure to meet the completion date of
the project.
2.22 Vesting of Plant and Equipment The Contractor shall take
reasonable measures to avoid damage, loss, etc., of material, plant
or equipment to be incorporated in the completed Building during
the progress of the Works.
2.23 Samples The Contractor shall on request or where specified
elsewhere submit to the Engineer samples of materials and/or
workmanship and such samples shall be approved in writing before
the appropriate equipment or installation work is carried out. Such
samples are subsequently to be retained by the Engineer as the
criteria of the standard of the workmanship or material to be
supplied and any items not so complying may forthwith be rejected
by the Engineer and shall be replaced by the Contractor without
increase to the Contract Sum.
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2.24 Silence of Operation The Contract Works as installed shall
be reasonably silent in operation having regard to the conditions
under and locations in which they will be called upon to operate.
The Contractor shall take all necessary steps to ensure that the
equipment supplied by him is silent as specified and shall include
for such sound absorbing, or anti-vibration, material or devices as
are necessary to ensure a satisfactory degree of silence and
absence of vibration in the structure of the Building. The
Engineers decision as to what constitutes satisfaction in this
respect shall be final. If on completion the system is not, in the
Engineers opinion, sufficiently silent, the Contractor shall,
without additional charge, carry out such modifications or
additions as may be required, until the system is made silent to
the Engineers satisfaction. Octave band sound pressure levels in
the various areas within the building and at certain positions
outside the building due to the operation of the equipment included
in this Contract shall not exceed the noise level ratings as set
down from Government Authorities.
2.25 Storage and Delivery of Equipment
The Contractor shall, arrange storage and delivery of the
equipment to suit the progress of the Works. Storage areas and
siting together with routing to and from such storage areas of
heavy equipment on Site in relation to structural loading
restriction shall be submitted to the Engineer for approval.
2.26 Contractors Programme
The Contractor shall provide a bar chart programme giving
realistic schedules or working periods to conform to the
construction Programme for the Contract Works. The bar chart
programme shall indicate how the various activities will be
scheduled in order to complete the Contract Works within the
Contract Period. Activities included in the Contractors programme
shall take account of, without limitation, the following : -
Submission for approval of all equipment;
Ordering of equipment;
Manufacture of equipment;
Delivery of equipment;
Installation of equipment and plants;
Submission to and inspection by Authorities;
Testing, balancing and commissioning;
Submission of As Installed Drawings, operating, Maintenance
Manuals and maintenance programme.
The above list is indicative but not exhaustive of all factors
required.
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2.27 Origin of Materials
The Contractor shall produce documentary evidence to verify the
place of origin for the materials delivered to site or installed.
Such documentary evidence shall be in the form of purchase orders
to, and shipment/delivery orders or produce certificates from the
manufacturers or the manufacturers agents in Singapore. The
materials or the works employing such materials will not be
certified for payment until the required evidence has been produced
to the satisfaction of the Engineer. The Tenderer shall indicate in
the Schedule of Information Supplied by the Tenderers the place of
origin of the materials being offered at the time of tendering.
2.28 Electricity Supply Unless otherwise specified, the complete
electrical installation shall be suitable for operation under the
supply system with nominal frequency of 50Hz and nominal voltage of
400V, 3 phases and 230V, single phase within the variation limits
as declared by Authority.
2.29 Radio and Television Interference
All electrically operated equipment used by the Contractor for
the execution of the works shall where applicable have suppressors
fitted to prevent interference with radio, television in use in the
neighbourhood. The above applies equally to all new items of
equipment supplied and fixed by the Contractor. Means of
suppression shall comply with B.S. 800. Equipment and materials
used in determining the level of interference shall be in
accordance with B.S. 727. Reference shall also be made to B.S.
CP1006 for further guidance in order to meet the specified
standards.
2.30 Calculations
The Contractor shall supply all calculations as may be required
by the Engineer. Calculations shall be submitted in triplicate, and
shall be based on equipment selected and offered by the Contractor.
The checking of calculations for compliance with Design Intent,
shall not relieve the Contractor from his responsibility or
necessity of furnishing material or performing work as required by
this Specification and/or Drawings.
2.31 Safety Precautions The Contractor shall arrange for the
provision of industrial safety helmets to B.S. 2826 for the use of
all his personnel on site, including supervision staff. The
Contractor shall ensure that helmets are worn, when necessary by
all his personnel on site. The Contractor shall be responsible for
ensuring that all works are carried out in a safe manner.
2.32 Testing and Commissioning After having satisfied himself of
the performance of the installation, the Contractor shall
demonstrate to the satisfaction of the Engineer that the
installation or part thereof as the case may be, complies with all
the requirements of the Specification.
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The Contractor shall provide all necessary facilities and
instruments for the witnessing and checking of such tests, but this
shall not relieve the Contractor of his responsibility for testing
and satisfying himself of the adequacy of the installation before
hand. The Contractor shall make complete records of the tests as
carried out and when the tests have been successfully completed, he
shall provide the Engineer with test records in triplicate on a
form to be agreed upon. All tests shall be carried out at the
direction of the Engineer. Should the test results indicate that
the plant or equipment is not functioning in a satisfactory manner
or complying with the requirements of the Specification, the
Contractor shall carry out at his own expense any alteration,
replacement or adjustment as may be required to correct the faulty
work. The Engineers decision as to what constitutes a satisfactory
test shall be final. All the equipment and systems shall be
examined and tested after completion of the installation work. The
Contractor shall furnish the Engineer with copies, in triplicate,
of test certificates in respect of all plant, equipment, materials
and accessories showing compliance with tests to British or any
other comparable and acceptable standards, manufacturers
instruction, applicable insurance company or Governments
requirements, and with any additional tests specifically called for
herein. The Contractor shall be responsible for and bear all the
costs in connection with any inspection, tests and permits for the
installation and shall make such tests as are called for by any
regulations or authorities. These tests shall be made in the
presence of the authorized representative of any such authority.
The Employer may permit the Contractor to make use of the permanent
facilities from the utility companies to perform functional checks,
and commissioning tests on the plumbing & drainage equipment,
provided that: All plant & equipment are maintained, to as-new
condition at the time of handing over of the installation. Should
there be any damage to any part of the installation, the Contractor
shall undertake to repair and replace all damaged parts/components
to the satisfaction of the Engineer. In particular, the Contractor
shall note that all equipment for the use of future tenants shall
be fully commissioned prior to hand over that is to say, All
equipment/fittings shall be made to work to demonstrate that they
are fully functional after installation. All Protection
Installation and distribution equipment shall be tested for full
performance. The Engineer shall be entitled at all reasonable times
during manufacture to inspect, examine, and test on the Contractors
premises the materials and workmanship of all equipment to be
supplied under the Contract. Such inspection, examination, or
testing, if made, shall not release the Contractors from any
obligation under the Contract. All costs shall be borne by the
Contractor. At least two months prior to testing or commissioning
any system, the Contractor shall furnish the following information
for each system or process to the Engineer for approval:-
Type of instruments to be used;
Manufacturer of instruments;
Calibration methods for instruments;
Operating instruction for instruments;
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Accuracy and tolerances of instruments; Proposed formats for
testing and commissioning reports; and
Complete schedule and programme of all testing and commissioning
activities. All plant, materials and systems shall be tested,
balanced and commissioned as specified in the Commissioning and
Testing Section of this specification. All testing, balancing and
commissioning procedures and documentation shall be approved by the
Engineer prior to commencement. Four sets of all documents shall be
provided for record purposes. All instruments shall have been
recalibrated within six months of the start of commissioning or
testing. Calibration of all instruments shall be certified by the
instruments manufacturer or an approved calibration agency.
2.33 Period of Notice A minimum of seven days notice shall be
given to the Engineer before all testing and commissioning
operations commence. A minimum of four weeks notice shall be given
in the case of factory tests on major plant.
2.34 Employers Instruction
The Contractor shall include in the Tender a minimum period of
one month for giving instructions training to the Employer
regarding the operational details and maintenance requirements of
the plants and equipment to be installed in this Contract. During
this period, a full time engineer shall be assigned to co-ordinate
training for the Employer. Training shall consist of work sessions
to explain in details the installation followed by site training on
the actual operation and maintenance of equipment. The Contractor
shall allow in the Tender for operating all plant and equipment on
behalf of the Employer for One (1) month following issue of the
Certificate of Practical Completion.
2.35 Free Maintenance and Service Apart from his contractual
responsibilities for making good inherent defects, the Contractor
shall furnish maintenance service free of charge on the entire
equipment supplied and installed under this Contractor from the
completion of the installation under this Contractor, until twelve
months after the Practical Completion of whole of the Works.
Maintenance shall include systematic and periodical examination,
adjustment and lubrication of all equipment, details of which shall
be submitted to the Engineer for approval. During this Free
Maintenance and Service period, the Contractor shall also repair or
replace electrical and mechanical parts of the equipment wherever
this is required and shall be only genuine standard parts produced
by the manufacturer of the equipment concerned. In the case if
standard parts being not readily available, a substitute may be
accepted for emergency use but must be replaced with the standard
part as soon as possible all at the Contractors expense. Renewals
or repair necessitated by reason of negligence or misuse of the
equipment, or by reason of any other cause beyond the control of
the Contractor, except ordinary wear and tear, shall not be the
responsibility of the Contractor. All works under this maintenance
provision shall be performed by competent personnel under the
supervision and in the direct employ of the Contractor. At the end
of the free maintenance period, a further test will carried out by
the Contractor on the plant in the presence of the Employers
representatives, and any defects shall be rectified by the
Contractor without charge, to the satisfaction of the Engineer, as
part of his normal contractual obligation.
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2.36 Spare Items The Contractor is required to guarantee that
sufficient spare items of the specified materials and goods are
available to allow for the timely replacement of any defective ones
during the free maintenance period.
2.37 Maintenance Contract The Contract shall submit with his
tender the yearly cost and terms for the periodical inspection,
testing maintenance and repair of the whole installation and
equipment to be installed under this Contract for 3 years after the
first twelve months of free maintenance.
2.38 Contractors Management and Site Organisation The Contractor
shall provide an experienced and fully qualified management team
under the overall direction and co-ordination of the Contractors
Project Manager. The site organisation shall include a competent
Site Engineer, together with the necessary back-up technical staff
to supervise the work and to undertake co-ordination duties with
the Engineer. The Project Manager and site engineer shall be
English and Mandarin speaking. The management organisation and
principle staff shall be provided to the satisfaction and approval
of the Employer and the Engineer. The Project Manager shall be
fully responsible for the timely completion of the entire Works to
the quality and the standards specified. He shall be a corporate
member of a recognised professional institute and must have a well
demonstrated record in project management of satisfactorily
completed commercial rise projects. He shall be supported by an
extensive back up team to the satisfaction of the Engineer to
ensure that the project is managed in a comprehensive and orderly
fashion. The Contractor shall engage sufficient qualified and
experienced site staff to execute the Contractor Works. Registered
and licensed trades person shall be employed and under the direct
employment of the Contractor and they shall be full time on site to
supervise the works. When requested by the Architect, sufficient
draughtsmen shall be kept on site to facilitate prompt preparation
and issuance of shop drawings. The Site Engineer shall be
constantly on the Works responsible to the Project Manager for the
timely completion to the specified quality and standards. The Site
Engineer is to be exclusively employed for this Contract and is to
be constantly upon the Works from commencement of Works until the
end of the Defect Liability Period.
2.39 Method Statements Prepare and submit method statements for
enabling works, installation, testing, commissioning, operation,
demonstration, training and hand over procedures.
2.40 Certification and Approval
The Contractor shall be responsible for all technical
submission, applications and liaison with government departments
and supply authorities, whether they are new submission or
following up of previous submission already made. The Contractor
shall be responsible for obtaining all the necessary approvals and
certificates for his installation and payments (excluding meter
deposit, if any) for his applications.
2.41 Design Requirement and System Description
The contractor shall supply, deliver, install, test and set into
perfect operating condition the automatic fire protection and fire
alarm system required for the above premises as shown in
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the drawing. All equipment selected shall be of equivalent or
higher standard to the existing installation. The Contractors
particular attention is drawn to the items listed in this clause
which will involve in design, specification and/or selection of
items based on such designs and specification. The selection of
manufacturers or suppliers, equipment, plant, components or
materials against the requirement specified herein shall not be
deemed to be the design or specification by the Contractor under
this clause. The production of shop drawing by the Contractor for
construction purpose shall not be deemed to be the design or
specification by the Contractor under this clause. The items which
will involve the Contractor in design or specification are as
listed below: a. Supporting systems including brackets, suspension
rods, fixing methods including
builders work bases as necessary to support and secure the
complete installation forming the Works.
b. Modifications as necessary to designs indicated on the
Contract Drawings to incorporate
the specific items of plant and equipment and components
selected to meet the requirements as specified herein.
c. Adjustments to plant and equipment to allow for deviations
between specified
requirements or data and details of items selected for
incorporation into the Works.
d. Obtaining the Engineers prior approval on the equipment
appearance, colour, finish and method of installation for those
equipment exposed in the lobbies/corridors/shop etc.
2.42 Performance Guarantee
The system schematic, layout and the equipment data in the
technical schedules is meant as guide. The Contractor shall be
solely responsible for the complete design, supply, and
installation of a complete operable system and shall guarantee the
performance to meet the conditional criteria.
2.43 M&E Painting, Colour Coding and Labelling General
Except where otherwise specified the external surfaces of all
conduits, apparatus, equipment, fittings and services including
supports, hangers and brackets shall be painted. All sheet metal
control cabinets, switchboards and distribution board enclosures
and similar shall be painted internally and externally. All
surfaces are to be painted and shall be cleaned, prime coated,
undercoated and then finished with two finishing coats. Each
coating (including priming, undercoating and the first finishing
coat) shall be allowed to dry and shall be rubbed down before the
next coat is applied. Surfaces Not to be Painted (i) Fibreglass and
plastic surfaces. (ii) Chrome plate and stainless steel
surfaces.
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(iii) Bearing surfaces slides adjusting screws and any surface
that is required to be unpainted for the correct operation for
adjustment of the equipment.
(iv) Hot dipped galvanised lamp holes.
Paint Material All paint and other preparations shall be
non-poisonous, lead-free prepared synthetic products of approved
brand, conforming to the relevant British Standard, brought onto
the site ready mixed in manufacturers sealed containers and used to
the manufacturers Specification. Preparation of Surfaces and Prime
Coating Metal surfaces shall be wire-brushed to remove loose rust
and scale. Castings shall be either ground smooth or alternatively
filled with approved filling compound and then rubbed to a smooth
finish. Steel plate and all rolled steel sections including
brackets and supports not galvanised, shall be given an application
of cold phosphate compound before being prime coated with red zinc
chromate primer. Steel pipes and conduits delivered to the site
unpainted shall be prime coated as specified for steel plate. All
galvanised or zinc sprayed steel surfaces and all non-ferrous
surfaces shall be given an application of PVB / Zinc chromate
self-etching primer before being prime coated as specified above.
Machinery, apparatus, equipment and fittings delivered to the site
already prime or finish painted shall be thoroughly cleaned down.
Finishes Each finishing coat shall be of a different shade. The
final coat shall be left smooth, even and free from the visible
brush marks and other defects.
For surfaces, which shall operate below 93C, the finishing coat
shall be high-grade alkyd enamel. Piping, cable enclosures and
conduits shall be painted to a gloss finish in colour or colours to
conform to Schedule of Colours. The ground colour shall extend
throughout the entire length of piping, cable enclosures and
conduits installed in the following locations:
(a) Plant rooms;
(b) Piping in trenches;
(c) Piping in basements underground floors and in vertical
ducts; and
(d) Wherever exposed to weather or to view.
All piping, cable enclosures and conduits installed in ceilings
and similar concealed spaces shall have the ground colour applied
in 400mm wide bands spaced at 6m centres except that ground colour
bands shall be provided adjacent to branches, junctions, valves,
floors and walls (both sides).
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Labelling All instruments, gauges, indicators, control equipment
contactors, circuit breakers, switches, starters, relays and cable
terminals on switchboards, etc., shall be clearly labelled and
identified with their associated function. Labels shall be of
laminated plastic with engraved upper case black letters on a white
background. Plastic labels shall be attached by screw or
rivet-fixing. Punch machine type strip lettering and stick-on
markings will not be approved. Lettering shall not be less than
12mm high. Lettering for items installed in switchboards and on
control panels shall not be less than 9mm high. Schedule of Colours
Equipment, conduit and trunking shall be identified in accordance
with relevant standard and in accordance with the following
schedule:
Equipment / Services Finish / Colour Labelling /
Identification
Electrical Panel Labels Exterior / Grey Interior : Grey
Engraved
Electrical Conduit and Trunking Orange or Match surrounding Grey
Band
Speaker Conduit and Trunking White or Match surrounding Blue
Band
Telephone Conduit and Trunking Green or Match surrounding Orange
Band
Surface Light Fitting White
Suspension Rod and Channels Potable /drinking water pipe
White Green
Black/flow direction
Town Gas Yellow Black/flow direction
2.44 Construction programme The Contractor shall provide the
equipment and carry out the works based on The Practical Completion
Date in this Document. The Contractor shall include the cost of the
Contract to meet the construction programme requirement and project
completion date. Detail programme shall be submitted by the
Contractor for Engineers approval.
2.45 External Noise Criteria The mechanical systems shall be
such designed that noise generated will not be greater than 45
db(A) during daytime and 40 db(A) during night time when measured
at 10 metres from boundary. Under no circumstance the noise
generated shall exceed the values as stipulated in Environmental
Protection Departments requirement. Acoustic treatment shall be
provided by the Contractor when noise generated exceeds the above
stated values and when the environment is affected.
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3.0 Scope Of work
The scope shall include but not limited to:
3.1 Electrical Installation 3.1.1 Scope of work for external
works
a. Lead-in H.D. UPVC Pipes for Electrical, Telecom, Cable TV
System from the Authority intake point (1000mm beyond existing open
drain) to the meter compartment as shown.
b. Lead-in H.D. UPVC Pipes for Electrical, Telecom, Cable TV
& Security System c/w MCTs at both ends
c. Outdoor distribution boards, and submains as shown.
d. External/Landscape, wiring.
e. Take delivery and installation of all light fittings.
f. Supply labour for installation of equipments, and lay Data
control cabling including all necessary termination works.
g. Supply & install Cable TV System including cabling works
& necessary equipments, accessories and concealed/exposed
conduit.
h. External/Landscape Lighting layout as per drawing.
i. Testing & commissioning for all system.
j. Attendance to Power supply application and submission,
inspection by all relevant authorities including engagement of
Licensed Electrical Worker (LEW).
3.1.2 Scope of work for typical units.
k. Lead-in H.D. UPVC Pipes for Electrical, Telecom, Cable TV
System from the Authority intake point (1000mm beyond existing open
drain) to the meter compartment as shown.
l. Supply & install Meter Panel (MP-1) located at Gate
Pillar c/w Authority metering facilities. Incoming supply sigle
phase c/w necessary protection relay
m. Lead-in H.D. UPVC Pipes for Electrical, Telecom, Cable TV c/w
MCTs at both ends
n. Distribution boards, and submains as shown.
o. Small Power Distribution.
p. Lighting points, Ceiling fan points and wiring.
q. External/Landscape lighting and wiring.
r. Take delivery and installation of all light fittings.
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s. Supply labour for installation of equipments, and lay Data
control cabling including all necessary termination works.
t. Supply & install Telephone System including Key phone
system Panel, cabling works, necessary accessories and UPVC
concealed/exposed conduit/ metal trunking as shown.
u. Supply & install Cable TV System including TV splitter,
cabling works & necessary equipments, accessories and UPVC
concealed/exposed conduit/ metal trunking.
v. Lightning Protection System & Earthing System.
w. Testing & commissioning for all system.
x. Attendance to Power company application and submission,
inspection by all relevant authorities including engagement of
Licensed Electrical Worker (LEW).
3.2 Air-conditioning & Ventilation Installation for typical
units
a. Take delivery and installation of the Air-cooled Split
Air-Conditioning equipments.
b. Supply and Installation of the Air Conditioning refrigerant
pipes, drain pipes, electrical wiring & control, etc. as shown
in the tender drawings.
c. Toilet exhaust systems c/w fans, ductworks, grilles, external
weatherproof louvres, etc. as shown in the tender drawings.
d. Take delivery and installation of the Air-cooled Split
Air-Conditioning equipments.
e. Testing & Commissioning.
3.3 Plumbing and Sanitary Installation
3.3.1 Scope of work for external works
a. Supply and install of external underground sewer drainage
system.
b. Supply and install of external plumbing & fire protection
system.
c. Supply and install of external storm water drainage
system.
d. Take delivery and fixing of all sanitary and plumbing
fittings
e. Testing & Commissioning.
f. Attendance to PUB/ENV application and submission of water and
sanitary plans, inspection by all relevant authorities including
engagement of licensed plumber, Licensed Water Service Plumber and
Qualified Person/Professional Engineer.
3.3.2 Scope of work for typical units
g. Supply and install of Internal underground sanitary drainage
system.
h. Supply and install of Internal plumbing system.
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i. Supply and install of Internal aboveground sanitary drainage
system.
j. Supply and install of Waste water pumping system
k. Supply and install of Rain water pumping system (if any)
l. Supply and install of Cold and Hot water supply system.
m. Supply and install of Complete domestic water hydro-pneumatic
Booster pump, & storage tank system. The booster pump system
inclusive pumps, pressure vessel, pipe work, fittings, VSD Drive,
control panel complete with wiring, pump starters, water level
sensors, controls, relays, trunking, conduit, pump automatic
operation and change-over to standby pump and accessories.
n. Supply and install of Electric water storage Heater
system.
o. Take delivery and fixing of all sanitary and plumbing
fittings
p. Electrical equipment and installation work.
q. Testing & Commissioning.
r. Attendance to Authorities application and submission of water
(including booster pump system, pressure vessels and domestic water
tank) and sanitary plans, inspection by all relevant authorities
including engagement of licensed plumber, Licensed Water Service
Plumber and Qualified Person/Professional Engineer.
3.4 General Scopes
a. Acoustic treatment and vibration control.
b. All interfacing work with other trades.
c. Painting and labelling of pipework and equipment.
d. Provision of all hold down bolts, spigots struts and the like
required to be built in during construction.
e. Testing and commissioning.
f. Provision of twelve (12) months operational maintenance and
breakdown services for external services. The period shall commence
immediately upon issuance of the Architects Completion
Certification or handing-over date of the service to the
authorities, whichever is later.
g. Provision of operating instructions and maintenance manuals;
as-fitted drawings.
h. Application, Submission and Liaison with authorities to
obtain all necessary certificates and approvals, including the
completion of all submission drawings, forms and payment of any
fees and charges. All the costs for all the tests as required by
all relevant authorities shall be included.
i. Take, delivery from site, installation, handling,
commissioning and protection of all sanitary wares and fittings
including all valves, accessories, taps, brackets, plugs, complete
as specified.
j. Provision of spare parts.
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k. Training of the employer for proper operation of the entire
systems.
l. Provision of the necessary installation which include
pipework, connection of water supply, conduit and control wiring,
etc. to form a workable system as required.
m. Attend to all authorities inspections regardless of whether
this inspection is carried out after the defect liability
period.
n. All other works and systems as specified in the Contract
document and or shown on the drawings.
o. All M&E installation works shall be in accordance to the
construction phasing programme which include the various completion
dates, target dates etc. for the different areas in the
development.
3.5 Servicing and Maintenance.
General The works as described hereunder are for the servicing
and maintenance of all the systems and ancillary plant, machineries
and equipment supplied and installed under the works during and
after the Maintenance Period and includes the supply of all
materials, tools, apparatus, equipment and appliances, labour and
necessary incidentals. During the Maintenance Period, the
replacement and/or repairs of all defective plants, machineries and
equipment and installations or any parts thereof shall be entirely
free of charge to the Employer, if such repairs or replacements are
necessitated by reason of defective design, materials or
workmanship.
Workmanship and Materials The servicing, maintenance and repair
(or replacement) shall be performed by skilled and competent
workmen and shall be executed in accordance with the best
commercial, technical and engineering practice. All materials to be
supplied shall be new and unused, and shall generally be of the
best quality as regards manufacture and performance.
Supervision The servicing, maintenance and repair (or
replacement) works shall be under the charge of a Supervisor. For
works required by local laws and regulations to be performed by
licensed or registered personnel, the Supervisor shall deem to have
the appropriate licence or registration. This Supervisor shall also
be fully competent in supervising the servicing, maintenance and
repair (or replacement) work and be acceptable to the Employer.
Scope of Work
All plant, machineries and equipment comprising the complete
systems and ancillary equipment supplied and installed under these
Works shall be serviced and maintained strictly in accordance with
the requirements/recommendations as stipulated by all the plant and
equipment manufacturers as well as in compliance with all by-laws,
rules, regulations and requirements of the Local Authorities and
shall also satisfy all appropriate Singapore Standards including
all relevant Codes of Practice. The Works includes the preparation
of a comprehensive servicing and maintenance schedule which shall
be submitted to the Architect / Engineer for review after the award
of the Work. The reviewed schedule shall then be included and shall
form an integral part of the Operating and Maintenance Instructions
and Parts List including monthly servicing.
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The time and day for carrying out the servicing, maintenance and
repair shall have agreement with the Employer. It is to be expected
that working outside normal working hours (i.e. overtime) will be
required. Also emergency repair services if so requested by the
Employer shall be carried out at any time of the day (overtime
included). It shall be contractually bound that the Employer be
immediately advised of any defects or deterioration in any part of
the equipment/materials observed during the routine inspection and
servicing.
The Works shall include the services of a Licensed Electrical
Worker to take charge of the entire Electrical Installation of the
entire Building including those related to all other building
services, i.e. Air Conditioning & Ventilation, Fire Fighting
& Alarm, Lifts, Sanitary and Plumbing, etc. for licensing
purpose (if applicable). All costs connected therewith including
fees payable to the Authorities are deemed to have been included
during the Maintenance Period.
The Works shall include routine inspections, servicing and
maintenance of all the equipment, machinery and plant to be carried
out outside the peak hours of the building of at agreeable time
with the Employer. The routine inspections, servicing and
maintenance schedule shall be so arranged that minimum
inconvenience and interruption shall be caused to the occupants and
Employer. During every regular inspection, the Works to be
performed shall include but not limited to the following:
(a) Check the performance of the complete Installation,
including cleaning and adjusting all
control devices as and when technically necessary.
(b) Advise the Employer's operators/maintenance in respect of
the emergency rescue, correct operation procedure etc.
(c) Report in writing to the Employer any defects discovered,
coming to light or observed in
any part or parts of the Installation. Such reports shall state
fully the cause(s) of such defect(s) and shall include, where
applicable, an estimate of the cost of repairs or replacement of
the defective part or parts required.
(d) Record, in the log book for each element of the
Installation, kept by the Employer,
particulars of all maintenance or repair works carried out and
initial all entries in the log book.
(e) Tests as and when necessary, any part of the
Installation.
(f) Report in writing to the Employer all servicing &
maintenance works carried out.
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Viet Nam Mechanical & Electrical Specification Rev 0
Tham & Wong M&E (Viet Nam) Page 27
4.0 Responsibilities of Contractor
The Contractor is to price for the followings:
Provision of hoisting facilities.
Provision of artificial lighting and temporary electricity
supplies including power for testing and commissioning of
air-conditioning and ventilation, lifts and electrical installation
which will be from the permanent installations.
Removal of rubbish from locations on each floor.
Securing the building and building works in such a manner that
it will not be subjected to damage by construction activities such
as falling debris or water seepage during the progress of the
Contract works.
Protecting, casing up and accepting full responsibility for loss
or damage to which have been fully, finally and properly
incorporated into the Works.
Additional costs incurred due to the working hour different from
and extended hours to those worked by the Contractor.
Provision of all setting out and survey information including
giving all necessary dimensions and taking responsibility for their
accuracy.
Programming, co-ordinating and organising the contractors work
to ensure the correct timing, sequencing and completion of all
operations including preparing co-ordinated working drawings of all
services.
Ascertaining all particulars relating to the contract works in
regard to sizes and positions of chases, holes and the like which
are to be formed or left in the structure.
Cutting and forming holes, recesses, etc. for ductwork, pipes,
conduits and fittings through walls, floors, ceilings, roofs, etc.
and making good after the contract works are sufficiently advance.
Cutting holes through false ceilings and special partitions shall
be by the respective specialist contractors. The contractor shall
be responsible for chasing of walls for pipes, conduits and
fittings and making good.
Filling, grouting and making good under lift shaft entrance
sills, around lift doorways and casings for buttons and indicators,
etc.
Building-in or casting-in of inserts, bolts, sleeves for pipes,
ducts, trunking, guide rails, equipment, suspension systems etc.
The contractor will provide the inserts, bolts, sleeves, etc. and
will locate the correct position for these fittings. Sealing
between the sleeve and the pipe, duct, trunking, etc. will be
executed by the contractor, in addition, sealing between the sleeve
and building structure (i.e. floors, walls) will also be by the
Contractor.
Marking the locations of any pre-stressing cables on the soffit
of structural floors, face of walls etc.
The formation of concrete bases, plinths, inertia blocks, etc.
for plant and equipment, door louvres, exhaust discharge (external)
grilles and fresh air intake louvres, unless otherwise stated in
the specification or drawings.
The provision, erection, maintenance and removal of all their
temporary office and storage accommodation.
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Tham & Wong M&E (Viet Nam) Page 28
Connections to temporary power supplies made available by the
Contractor. Supplying and running distribution cables, leads and
electrical equipment as required.
The provision of plant, equipment and generators for welding
works.
The provision, erection and removal of special scaffolding
including altering and adapting from time to time as necessary.
Removing of all existing equipment and associated equipment made
redundant during A/A works from site. Depositing all rubbish,
crates, drums, etc. at positions on each floor to be indicated by
the maintenance.
Full responsibility for loss or damage to their plant, tools,
equipment and other property on the site.
Protection and casing up of the contract works until such works
have been properly completed and incorporated into the Works.
Chasing of walls for pipes, conduits and fittings. The painting
of pipes, conduits and equipment.
Sealing between sleeves built-in by the Contractor and the pipe,
duct, trunking, etc. using materials and methods of suitable fire
rating and to the approval of the building Authority, Architect and
Engineer.
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PARKCITY ` Clubhouse Facilities ParkCity at Le Trong Tan Ha Noi,
Viet Nam Mechanical & Electrical Specification Rev 0
Tham & Wong M&E (Viet Nam) Page 29
5.0 Electrical Services
This specification shall be read in conjunction with all other
relevant drawings accompanying this document. The Contractor shall
not be absolved from his responsibility for not carrying out the
contract works in accordance with the requirements of the foregoing
sections of this document and the detailed specification of work as
outlined hereunder. a) Check phase loading and phase balance the
circuits.
b) Provision of proper ceiling Roses, Flexible Chords and
connectors to every lighting point to comply to the requirements of
S P Services Ltd.
c) Provision of necessary cable trunking/trays for all services
including Data, Telephone, and Security cables
d) Supply and installation of new wall boxes and concealed
conduit from the nearest down trunking in the wall/column.
e) Ensure the accuracy of timers and reset.
f) Record all services and replacement carried out.
g) Contractors LEW to make all necessary application and to
submit plans or drawings, endorsed forms and certificates to
Authority
h) Contractors LEW shall be responsible for Authority meter
installation, turn-on and pay all fees including the Licensing Fee
for the operation of the installation up to the expiry of the
Maintenance Period.
i) Test for the proper functioning of existing light fittings,
control and protective circuits/devises and distribution
boards.
j) Modify existing circuiting of light fittings and distribution
boards as required
k) Testing and commissioning of all systems and equipment and
hand over of those systems and equipment to the Client.
l) Provision of twelve (12) months operational maintenance and
breakdown services after practical completions.
m) Provision of shop drawings as-built drawings, operating
instructions and maintenance manuals.
n) Liaise and co-ordinate with other trades for the interface
requirements of the Electrical systems.
o) Training of employers staff for proper operation of the
entire system.
p) Provision of spare parts and equipment
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Tham & Wong M&E (Viet Nam) Page 30
5.1 General
This Section specifies the electrical equipment and installation
which shall form part of the Works as shown on the Drawings.
All electrical equipment including luminaires, switch socket
outlet, switches, motors, starters, switchgear panels, cabling,
wiring, etc., associated with the various mechanical systems or
equipment shall fully comply with this Section.
Manufacture
All electrical equipment and materials of the same type shall be
supplied by a single manufacturer to ensure uniformity of standards
and composition.
All equipment and accessories delivered to site shall be new and
shall be clearly marked to identify different grades, materials and
manufacturers.
All switchgear, motors and starters must be the product of a
manufacturer experienced in the design and construction of similar
equipment and who have made electrical equipment for similar duties
for at least five years.
Submissions
The information listed in this Clause must be provided for each
electrical system at the times stated.
At the time of tendering, the Contractor shall provide all
information in accordance with the Form of Tender.
Within two weeks of being notified of the Employer's intent to
award the Contract and prior to ordering the equipment, the
Contractor shall furnish the following information for each system
to the Engineer for approval:-
Manufacturer of all cables, wiring and accessories;
Specifications and standards for all materials; and
Certified list of recommended spare parts.
Within two weeks of being awarded the Contract, the Contractor
shall submit to the Engineer for approval complete working drawings
of all electrical systems included in the Contract.
Working drawings shall show all conduit runs and cable routings
and shall clearly indicate the locations of all electrical
installation, isolating switches and all plant and equipment to
which the electrical system connects.
Prior to ordering any motors, switchgear, control panels,
instruments or any other electrical equipment or accessory, the
Contractor shall submit to the Engineer for approval the
manufacturer's data for each item and in the case of control
panels, a detailed layout drawing of the panel face.
Prior to ordering any motor starters, the Contractor shall
submit for approval full technical details of the equipment
including time/current characteristics for each motor/starter
arrangement.
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Tham & Wong M&E (Viet Nam) Page 31
Prior to ordering any materials, the Contractor shall submit for
approval samples of all cables, wiring, conduit, junction boxes,
fittings, switches, hangers, cable trays and any other item as may
reasonably be requested by the Engineer.
Within two weeks of being awarded the Contract, the Contractor
shall submit a draft copy of his proposed commissioning and testing
procedures and report for approval.
Within one month of the Date of Practical Completion, the
Contractor shall provide as-built drawings for each system in
accordance with the "General Requirements" Section of this
Specification.
Within one month of the Date of Practical Completion, the
Contractor shall provide complete commissioning and testing reports
for each system in accordance with the recommendations of the 16th
Edition of the I.E.E. and in compliance with the "Commissioning and
Testing" Section of this Specification.
5.2 Equipment
5.2.1 HV SWITCHGEAR & EQUIPMENT
Scope of Work
This Specification specifies the requirements for switchgear
operating at voltages above 22
kV a.c.
This Specification specifies protective relays that are not
integral to a circuit breaker or
switching device and separately-mounted voltage and current
transformers.
This Specification specifies integrated protective relays and
voltage and current transformers
assembled as an integral part of a circuit breaker or switching
device are covered in the
relevant sections.
Performance Criteria and Requirements
Provide switchgear suitable for indoor use in tropical
conditions
Ensure all ratings, including the ratings of all fittings,
accessories, CTs, VTs, instruments,
relays etc, are for continuous operation under full load at the
specified on-site conditions/
Arc Fault Containment
Provide switchgear certified to prove the suitability of the
switchgear for accessibility Type A
as specified in IEC 60298. Carry out Arc fault containment tests
for:
Busbar chambers
Circuit breaker and switch chambers
Cable termination chambers
Submit certificates to the Engineer.
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PARKCITY ` Clubhouse Facilities ParkCity at Le Trong Tan Ha Noi,
Viet Nam Mechanical & Electrical Specification Rev 0
Tham & Wong M&E (Viet Nam) Page 32
MATERIALS
General Requirements
Provide free-standing, modular, metal-enclosed indoor type
switchboards to IEC 60298.
Ensure switchboards are extensible at both ends.
Provide switchboards that are able to withstand the prospective
short-circuit current for 1
seconds duration for 20 kA and fully type tested by an
internationally recognised testing
station such as ASTA, KEMA or any other testing station approved
by the Engineer.
Provide switchboards with electrical and mechanical interlocks
so that multiple incoming
feeders cannot be operated in parallel.
Ensure switchboards have a minimum Index of Protection of IP4x
in accordance with IEC
60529.
Provide switchboard assemblies with a continuous copper earth
bar running the whole length
sized for the prospective short-circuit current.
Provide each switchboard section with anti-condensation heaters.
Ensure anti-condensation
heaters are individually fused.
Protective Relays
So far as it is practicable, ensure all CTs are of the ring
type. Wound primary CTs will only be
accepted when the rated primary current is so low as to make the
ring type impracticable.
Ensure all CTs for use at voltages exceeding 1000V are epoxy
resin encapsulated, whether
of the ring type or the wound primary type.
DESIGN AND FABRICATION
General
Provide switchboard enclosures constructed from minimum 2mm
steel sheet, with stiffening to
all doors and covers.
Internal Segregation
Ensure busbars, circuit breaker or switch and cable terminals
are segregated from each other
by means of separate compartments. Provide a separate front
opening compartment for all
low voltage components.
Pressure Relief
Ensure pressure relief flaps are fitted to the top of the
circuit breaker, busbar and cable
chambers and discharge either from the top of the cubicle or
from the rear of the cubicle via a
duct to direct the gases up over the top of the cubicle. Fit
dynamic flaps to all front facing
vents.
Ensure that gases cannot be transmitted from a faulted to a
non-faulted compartment or
cubicle.
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Safety Shutters
Provide busbar and circuit spouts devices provided with
automatic metal safety shutters.
Ensure the safety shutters are operated by the movement of the
circuit breaker being racked
between the 'Test/Disconnected' and 'Service' positions.
Ensure shutters are individually driven open and positively
re-closed.
Provide shutters capable of being individually propped in the
'Open' position. Provide shutters
capable of being closed manually or, on re-insertion of the
circuit breaker to the 'Service'
position, normal operation is automatically restored.
Provide earthing for safety shutters when they are in the Open
and Closed positions.
Ensure shutters are capable of being individually padlocked in
the Closed position.
Ensure busbar and circuit shutters are clearly identified.
Circuit Breaker Interlocks
Provide full interlocking as follows:
Ensure that it is not possible to insert the circuit breaker
into the cubical unless the racking
system interlocks are disengaged.
Ensure that it is not possible to rack the circuit breaker from
the 'Test/Disconnected' position
to the 'Service' position unless:
The racking system interlocks are engaged
The circuit breaker is open
The front door is closed
The earth switch is open
Ensure it is not possible to rack the circuit breaker from the
'Service' position to the
'Test/Disconnected' position unless the circuit breaker is
open
Ensure it is only possible to close the earth switch with the
circuit breaker in the
'Test/Disconnected' or 'Withdrawn' position.
Ensure it is only possible to close the circuit breaker in the
'Service' or
'Test/Disconnected' position.
Ensure it is not possible to open the cubicle door unless the
circuit breaker is in the
'Test/Disconnected' position.
Nameplates
Provide nameplates on the front of each section giving the
circuit identification and the cable
size.
Provide on the front of each section a permanently fixed
synoptic diagram indicating the
busbars and any circuit breaker or switch, earthing switch and
voltage transformers.
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PARKCITY ` Clubhouse Facilities ParkCity at Le Trong Tan Ha Noi,
Viet Nam Mechanical & Electrical Specification Rev 0
Tham & Wong M&E (Viet Nam) Page 34