1 भारत सरकार Government of India अतर वभाग Department of Space सतीश धवन अंतर के Satish Dhawan Space Centre शार SHAR ीहरकोटा डा.घ.524124 आं.. भारत SRIHARIKOTA P.O. 524124, AP, INDIA टेलफोन:+91 8623 225023 Telephone: +91 8623 225023 फेस: +91 8623 225170 Fax: +91 8623 225170 GOVERNMENT OF INDIA :: DEPARTMENT OF SPACE SATISH DHAWAN SPACE CENTER SHAR :: SRIHARIKOTA – 524 124 SRI POTTI SREERAMULU.NELLORE DISTRICT (A.P) TENDER NOTICE NO. SDSC SHAR/HPS/PT/14/2016-17 On behalf of President of India, Head Purchase and Stores, SDSC SHAR, SRIHARIKOTA invites on line quotations for the following. Sl No Ref. No. Description Qty. Tender Fee 01 SHAR CMD 2016 00 4604 e-procurement [Two Part basis] Supply, Testing & Commissioning of Medium Voltage Panels 1 LS No tender fee shall be applicable for tenders submitted through EGPS 02 SHAR SPP 2016 00 4891 e-procurement [Two Part basis] Manufacturing of Rubber, Supply, Lining & Associated Works 1 LS 03 SHAR VAST 2016 00 4916 e-procurement [Single Part basis] Supply of Flameproof DBs & Accessories for Second Vehicle Assembly Building at SDSC SHAR 1 Lot 04 SHAR SC 2016 00 4943 e-procurement [Two Part basis] Comprehensive Annual Maintenance contract for Plain Paper Copiers including Toner, Consumables & Spares 1 LS 05 SHAR CMD 2016 00 5044 e-procurement [Two Part basis] Supply, Installation, Testing & Commissioning of 11kV 7-VCB Change Over Panel for Second Vehicle Assembly Building at SDSC SHAR 1 LS Last Date for downloading of tender documents: 19.12.2016 at 16:00 hrs. Due Date for submission of bids online : 19.12.2016 at 16:00 hrs. Due Date for Bid Sealing on : 19.12.2016 at 16:01 hrs. to 19.12.2016 at 17.30 hrs. Due Date for Open Authorization : 19.12.2016 at 17.31 hrs. to 21.12.2016 at 17:00 hrs. Due Date for opening of tenders : 22.12.2016 at 14:30 hrs. Instructions to Tenderers: 01. For full details/scope of work and terms and conditions etc., please see the enclosed annexures. 02. Interested tenderers can download the e-tender from ISRO e-procurement website https://eprocure.isro.gov.in and submit the offer on line in the e-procurement portal. Offers sent physically by post/courier/in person will not be considered. 03. Tender documents are also available on ISRO website www.isro.org; ISRO e-procurement website https://eprocure.isro.gov.in and SDSC SHAR, Sriharikota website www.shar.gov.in. The same can be down loaded and offer submitted on line in the e-procurement portal. 04. Quotations received after the due date/time will not be considered. 05. The tender documents are available for download upto 19.12.2016 at 1600 hrs. and last date for submission of tenders on line 19.12.2016 at 1600 hrs. and Tender Opening on 22.12.2016 at 14:30 hrs. 06. Head, Purchase and Stores, SDSC-SHAR, Sriharikota reserves the right to accept or reject any/or all the quotations. DT: 31.10.2016 HEAD, PURCHASE AND STORES
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1
भारत सरकार Government of India
अतर� �वभाग Department of Space
सतीश धवन अंतर� के� Satish Dhawan Space Centre
शार SHAR �ीहरकोटा डा.घ.524124 आं.". भारत SRIHARIKOTA P.O. 524124, AP, INDIA
GOVERNMENT OF INDIA :: DEPARTMENT OF SPACE SATISH DHAWAN SPACE CENTER SHAR :: SRIHARIKOTA – 524 124
SRI POTTI SREERAMULU.NELLORE DISTRICT (A.P)
TENDER NOTICE NO. SDSC SHAR/HPS/PT/14/2016-17
On behalf of President of India, Head Purchase and Stores, SDSC SHAR, SRIHARIKOTA invites on line quotations for the following.
Sl No
Ref. No. Description Qty. Tender Fee
01
SHAR CMD 2016 00 4604 e-procurement [Two Part basis]
Supply, Testing & Commissioning of Medium Voltage Panels
1 LS No tender fee shall be applicable for tenders submitted through EGPS
02 SHAR SPP 2016 00 4891 e-procurement [Two Part basis]
Manufacturing of Rubber, Supply, Lining & Associated Works
1 LS
03 SHAR VAST 2016 00 4916 e-procurement [Single Part basis]
Supply of Flameproof DBs & Accessories for Second Vehicle Assembly Building at SDSC SHAR
1 Lot
04 SHAR SC 2016 00 4943 e-procurement [Two Part basis]
Comprehensive Annual Maintenance contract for Plain Paper Copiers including Toner, Consumables & Spares
1 LS
05 SHAR CMD 2016 00 5044 e-procurement [Two Part basis]
Supply, Installation, Testing & Commissioning of 11kV 7-VCB Change Over Panel for Second Vehicle Assembly Building at SDSC SHAR
1 LS
Last Date for downloading of tender documents: 19.12.2016 at 16:00 hrs. Due Date for submission of bids online : 19.12.2016 at 16:00 hrs. Due Date for Bid Sealing on : 19.12.2016 at 16:01 hrs. to 19.12.2016 at 17.30 hrs. Due Date for Open Authorization : 19.12.2016 at 17.31 hrs. to 21.12.2016 at 17:00 hrs. Due Date for opening of tenders : 22.12.2016 at 14:30 hrs.
Instructions to Tenderers:
01. For full details/scope of work and terms and conditions etc., please see the enclosed annexures.
02. Interested tenderers can download the e-tender from ISRO e-procurement website https://eprocure.isro.gov.in and submit the offer on line in the e-procurement portal. Offers sent physically by post/courier/in person will not be considered.
03. Tender documents are also available on ISRO website www.isro.org; ISRO e-procurement website https://eprocure.isro.gov.in and SDSC SHAR, Sriharikota website www.shar.gov.in. The same can be down loaded and offer submitted on line in the e-procurement portal.
04. Quotations received after the due date/time will not be considered.
05. The tender documents are available for download upto 19.12.2016 at 1600 hrs. and last date for submission of tenders on line 19.12.2016 at 1600 hrs. and Tender Opening on 22.12.2016 at 14:30 hrs.
06. Head, Purchase and Stores, SDSC-SHAR, Sriharikota reserves the right to accept or reject any/or all the quotations.
DT: 31.10.2016 HEAD, PURCHASE AND STORES
SHAR/CMD / 2016004604
1
ANNEXURE TO INDENT
SHAR/CMD / 2016004604
SUPPLY, TESTING & COMMISSIONING OF MEDIUM VOLTAGE PANELS
TECHNICAL SPECIFICATION AND SCHEDULE
INDEX:
I. PANEL ENCLOSURE.
II. DIMENSIONAL REQUIREMENTS.
III. MOULDED CASE CIRCUIT BREAKERS.
IV. AIR CIRCUIT BREAKERS.
V. APPROVED MAKES OF PANEL COMPONENTS AND ACCESSORIES.
VI. SCHEDULE OF QUANTITIES.
VII. DETAILED SPECIFICATIONS / GUIDELINES FOR MV PANEL CONSTRUCTION.
VIII. TESTS TO BE DONE AT FACTORY / WORKS.
IX. DETAILS OF TESTING AND COMMISSIONING AT SITE.
X. GTP.
XI. SPECIAL TERMS AND CONDITIONS.
XII. NOTE TO TENDERERS.
XIII. REALIZATION SCHEDULE.
XIV. CHECKLIST.
XV. DRAWING NO: 1 / SHAR / CMD / 2016004604
XVI. DRAWING NO: 2 / SHAR / CMD / 2016004604
XVII. DRAWING NO: 3 / SHAR / CMD / 2016004604
XVIII. LIST OF APPROVED PANEL BUILDERS.
SHAR/CMD / 2016004604
2
TECHNICAL SPECIFICATIONS
Scope of work : Supply, Testing and Commissioning of, 415V, three phase, 4 wire, 50 HZ, AC, short circuit
capacity of 50 kA rms symmetrical Power Distribution Panels as per the specifications below. The testing and
commissioning of the panels at site is also in the scope of work
I PANEL ENCLOSURE:
1. The panels shall be fabricated out of 14 SWG CRCA sheet steel with necessary anti-corrosive
treatment and shall be of dust and vermin proof construction with front in- line configuration
2. The cubicle shall be of minimum 2mm thick sheet steel. All partition shall be of minimum 1.6mm
thickness. All sheet steel works forming the exterior of switch boards shall be smoothly finished,
leveled and free from flaws. The corners shall be rounded.
3. Metal clad, cubicle, indoor, free standing type and compartment arrangement
4. The Panel structure and frame and all steel parts shall undergo seven tank process surface
treatments, followed by powder coating with Siemens grey over the exterior and interior side of
the panel. The powder coating compound shall have fire retardant properties.
5. Fire retardant DMC / SMC fillings for openings around bus bars near the sectional barriers shall be
provided. Also adequate fire barriers are to be provided appropriate locations in all feeder
compartments in such a way that products of combustion / explosion if any shall not spread to
other compartments of the panel.
6. The panel shall be suitable for horizontal expansion in future on both sides. Hence necessary provisions
like providing full length bus bars in the main bus chamber, providing holes in the main bus bar ends
for connecting fish plates and providing separate end covers in the bus bar chamber shall be made.
7. The panel shall be provided with a base frame of ISMC-100 channel. A cover plate at the top of the
vertical section shall be provided with necessary ventilating arrangements. Any aperture for ventilation
shall be covered with a perforated sheet having less than 1 mm diameter perforations to prevent entry
of vermin.
8. Door interlocking facility and defeat interlock facility is to be provided for all MCCB handle mechanisms
on the front door of the cubicle.
9. Castel interlocks with keys (as per schedule of quantities) shall be provided on the door of the cubicles
such that these are readily accessible without having to open the cubicle door for operation. Clear
markings indicating the direction of open / close shall be made with aesthetic stickers
10. Where the overall length of panels are more than 2.5 mtr, it is advised to fabricate the panel in
possible no. of vertical sections and transport the sections to site such that it is easy to move the
panels inside the panel rooms and then integrated.
11. The panels shall be suitable for mounting on Trenches.
12. The minimum operating height of the handles of the switchgears in panels shall be not less than 300
mm from FFL (Finished floor level) and the maximum operating height shall not exceed 1.8 m from
FFL.
13. All insulating materials used in the construction of the equipment shall be non-hygroscopic, duly
treated to withstand the effect of high humidity, high temperature and tropical ambient service
conditions.
14. Provisions shall be made for permanently earthing the frames and other metal parts of the switch
gear by two independent connections.
15. The panel shall be painted with RAL 7057 colour
SHAR/CMD / 2016004604
3
II DIMENSIONAL REQUIREMENTS:
1. The width of cable alleys of all panels shall be not less than 350 mm.
2. The depth of all panels shall be designed liberally allowing suitable access for using the
maintenance tools in all cubicles/alleys. Liberal clearances shall be maintained in all panel cubicles,
bus bar chambers and cable alleys by considering the maintenance point of view. The panel
builders are requested to furnish the drawings during detailed engineering.
3. MCCB (outgoing) Cubicle dimension: The minimum height of the cubicle should not be less than
350mm and width shall be not less than 400 mm.
4. The incomer feeder MCCB cubicle shall be liberally sized than above guideline in order to ensure
proper termination facilities.
5. The dimensional requirements mentioned above are guidelines and are indicative only. However
Dept. reserves the right to alter the dimensions during detailed engineering. Tolerance (due to CNC
machining or any other, if any) is acceptable in the range of +/- 10mm on all the above dimensions.
III MOULDED CASE CIRCUIT BREAKERS:
1. The MCCBs shall be of four pole version as mentioned in `Schedule of quantities’.
2. All MCCBs for the panels shall be provided with built-in adjustable short circuit, over load protection
and earth fault protection using microprocessor based release. (Equivalent to L&T MTX2.0).
3. All MCCBs shall be provided with 230 V AC shunt trip coil.
4. All MCCBs shall be provided with factory built rotary operating mechanism
5. All MCCBs shall have provision to connect the UG cables as per the Schedule of Quantities.
IV Air Circuit Breakers:
1. All ACB shall be fully draw out type and electrically operated having minimum of 6 NO + 6 NC
spare auxiliary contacts apart from the contacts used for breaker operation/annunciation.
2. All ACBs (Excluding bus coupler ) shall have micro processor based releases having IDMT non-
directional shunt trip characteristic for over load and short circuit protection with suitable CTs.
Protection shall also be available against earth fault and instantaneous short circuit. All the
protection settings (O/L, S/C & E/F) shall be field adjustable as per requirement.
3. The ACB shall be suitable for tripping / closing operations with 24 DC/ 230V AC. The spring
charge motor shall be suitable for 230 V AC operations.
4. All ACB’s shall be either TP with 100% Neutral Assemblies / Four Pole version as mentioned in
schedule.
5. All ACBs shall have Modbus communication port.
6. All ACBs shall have Trip & Event recording.
7. ACBs shall have both electrical and mechanical key interlocks wherever required as per the
schedule.
8. ACBs shall conform to IS /IEC 60947- 2, IS 13118
9. All ACBs shall be SCADA compatible, i.e., they shall have the capability to work in SCADA
environment.
SHAR/CMD / 2016004604
4
V APPROVED MAKES OF PANEL COMPONENTS / ACCESSORIES
The makes of components such as shall be one among the following only with the given order of preference.
Only the approved makes are to be adopted during fabrication.
1.2. Sheet metal thickness 2mm for cubicle structure Yes / No
1.3 Class of protection IP54 Yes / No
1.4 Metal Treatment before painting Seven Tank Process Yes / No
1.5 Painting process Powder coated, oven dried Yes / No
2.0 Busbars
2.0.1 Bus conductor
High conductivity, 99.9% pure electrolytic
virgin grade copper complying with the
requirements of IS 8130
Yes / No
2.0.2 Grade Electrical grade Yes / No
2.0.3 Area of cross section (Sq.mm) for
different Current ratings
Shall be as mentioned in VI - Schedule of
Quantities Yes / No
2.1 Minimum clearance of bare bus and
connections
2.1.1 Phase to phase ( mm) 25 mm Yes / No
2.1.2 Phase to earth ( mm) 25 mm Yes / No
2.2 Busbars Insulating sleeves / Barriers
2.2.1 Insulating sleeve material Heat shrinkable color sleeves Yes / No
2.2.2 insulating barriers SMC / DMC To be mentioned
2.3 Bus support insulator
2.3.1 Make To be specified To be mentioned
2.3.2 Material SMC/DMC To be mentioned
2.3.3 Voltage class 660 V min. Yes / No
2.3.4
Minimum total creepage distance i)
Ph.to ph. & Ph. To Gnd / Neutral
ii) Neutral to Ground
25 mm
19 mm
Yes / No
3.0 MCCBs ( to be given for each type and
rating)
3.1 Make (Shall be one among the makes
specified under IV of specifications)
Make and Model no. to be specified by
tenderer. To be mentioned
3.2 Confirmation Standard(IS / BS / IEC) To be specified by tenderer To be mentioned
3.3 Type Panel mounting type Yes / No
3.4 Rated operating volt ( V) 415 / 440 Volts Yes / No
3.5 Rated normal current ( A) As per schedule of quantities Yes / No
SHAR/CMD / 2016004604
14
3.6 Breaking capacity As per schedule of quantities
Yes / No
3.7 Rated insulation voltage 660 V min. Yes / No
4.0 ACBs
4.1 Make (Shall be one among the makes specified
under IV of specifications) Make and Model no. to be specified by tenderer. To be mentioned
4.2 Confirmation Standard(IS / BS / IEC) To be specified by tenderer To be mentioned
4.3 Type Panel mounting type Yes / No
4.4 Rated operating volt ( V) 415 / 440 Volts Yes / No
4.5 Rated normal current ( A) As per schedule of quantities Yes / No
4.6 Breaking capacity As per schedule of quantities
Yes / No
4.7 Rated insulation voltage 660 V min. Yes / No
5.0 Current transformer
5.1 Make
Shall be one among the makes specified under IV
of specifications. To be mentioned
5.2 Type As per schedule of quantities Yes / No
5.3 accuracy class Class 1 Yes / No
6.0 Panel meters
6.1 Make Shall be one among the makes specified under IV
of specifications
Make and
Model to be mentioned
6.2 Type As per schedule of quantities Yes / No
7.0 Control wiring
7.1 Type FR PVC Copper Multi stranded Yes / No
7.2 Size of wire 1.5sq.mm for voltage circuits and 2.5 sq.mm for
current circuits. Yes / No
7.3 Insulation 1100 V Yes / No
7.4 List of catalogues in respect of switchgears and
meters. To be enclosed Yes / No
7.5 Acceptance for Tests As per S.No. VIII and IX of specifications Yes / No
8.0 Acceptance for Part Order
Dept. reserves the right to place order in part (on
few panels) or in full quantity (all panels) which
may please be noted and acceptance shall be
conveyed.
Accepted / Not Accepted
9.0 Confirmation of Panel Builder
The tenderer shall furnish the name of the panel
builder where the panels will be fabricated. The
panel builder shall be chosen from among the list
of approved panel builders as in XVIII. Acceptance
letter from panel builder to fabricate the panels
for the subject work shall be enclosed.
Details of Panel builder
along with acceptance
letter from the panel
builder to be enclosed.
10.0 LIST OF DEVIATIONS IF ANY TENDERERS may Please specify all deviations (if
any) against our indented specifications. Attach
separate sheet if required.
Signature and Seal of Tenderer
SHAR/CMD / 2016004604
15
XI SPECIAL TERMS AND CONDITIONS
01. All test facilities required shall be provided for the tests prescribed in the schedule by the party without any
additional cost at their factory . The tests shall be carried out in the presence of our CLIP inspection team before
despatch from their works
02. On receipt of Purchase Order the agency shall be submitting the following drawings for approval before
manufacturing :
i) General arrangement and schematic drawings
ii) Foundation drawings
iii) Control wiring drawings
03. The scope of work shall include delivery of the panels and their accessories to SDSC SHAR, Sriharikota
with utmost care in handling. Also MV panels are to be unloaded at the site around 15 KMs from the
main entry gate-1 of SDSC, SHAR, Sriharikota. Material Handling Equipment for unloading the panels
shall be provided, based on the then availability, on chargeable basis.
04. The MV panels and switchgears shall be guaranteed for a period of 12 months from the date of
commissioning against manufacturing defects . The supplier shall repair / replace the damaged
equipment without any extra cost during the guarantee period.
05. Bank guarantee to the tune of 10% of the value of panels shall be produced. Which will be released only
after the period of 12 months from the date of commissioning provided there are no claims from the
department.
06. Details required for installation viz., providing MS channels / foundation bolts shall be furnished on
receipt of PO.
07. The supplier shall provide three complete sets of operation and maintenance manuals and test
certificates for the operation and maintenance purpose of the department.
08. MV Panel cubical keys, Handles, interlock keys, manuals and drawings of sufficient no’s are to be handed
over to department during supply.
09. The department shall reserve the right to accept / reject any part of work, which is not acceptable as
healthy engineering practice of carrying out such work as the case may be. In case of any failure to carry
out the scope of work in time as per the instruction of department, the work shall be carried out / got
done by the department at the cost and risk of the agency and the entire amount with supervision
charges shall be recovered from the agency.
SHAR/CMD / 2016004604
16
XII NOTE TO SUPPLIER:
1. Testing and commissioning of MV Panels as per the guidelines given separately. The brief scope is as
follows.
Supply Unloading Installation
Testing &
commissioning
MV
Panels
Supplier Supplier
Installation shall be
under the scope of the
Department. However,
supplier shall provide
necessary supervisory
support during
installation.
Supplier
2. The panels shall undergo seven tank process system for metal surface treatment for metal
treatment prior to painting.
3. All bus bars shall be provided with heat shrinkable sleeves.
4. All the GI strips, bolts, nuts to be used in the panel shall be of hot dip galvanised with 50 micron
thick zinc coating.
5. The party shall agree for inspection by Department Engineers which will be mentioned in Purchase
Order.
6. All the panels should be guaranteed for 12 months from the date of installation against all
manufacturing defects.
7. The Instrument Transformers, Relays etc shall conform to respective IS
specification with latest amendments:
a) General requirement of circuit breakers: IS 13118
b) Current Transformers : IS 2705
8. General arrangement drawings of the MV Panels with all details such as the makes of CTs, Meters
etc shall be submitted to the department and prior approval shall be obtained from the department
before taking up the fabrication works of the panels.
9. All the Equipment associated instruments and meters etc. supplied shall be guaranteed for a period
of 12 months from the date of commissioning whichever is earlier. Defects if any noticed during this
period shall be attended by the supplier including replacement of defective materials / equipment
at free of cost.
SHAR/CMD / 2016004604
17
XIII REALISATION SCHEDULE:
SCHEDULE FLOWCHART
PO release
(A)
Submission of all
drawings (B)
Approval of Drawings by
Department (C)
Manufacturing /
Integration (D)
Intimation of readiness
(E)
Inspection at works
(F)
Delivery to site
(G)
Installation by Dept. (H)
Testing &
Commissioning
(J)
Intimation of Readiness
for Testing &
Commissioning by
Dept. (I)
SHAR/CMD / 2016004604
18
The following delivery schedule is to be duly filled by the supplier and submitted along with the
technical bid:
S.NO ACTIVITY NO OF DAYS REQUIRED (to be
filled by the supplier)
1. PO Date (A)
2. Submission of all drawings on receipt of PO (B) A + ‘x’ days
3. Approval of drawings by the Department (C)
4. Manufacturing on approval of drawings. ( D ) C + ‘x’ days
5. Intimation of readiness of Panel Boards for inspection. (E) D + ‘x’ days
6. Inspection at works. (F)
7. Delivery of Panel boards on clearance for dispatch by
Dept. inspecting engineers (G)
F + ‘x’ days
8. Installation by Dept. (H)
9. Intimation of readiness for Testing & Commissioning by
the Department (I)
10. Testing & Commissioning (J) I + ‘x’ days
Total Realisation Schedule
SHAR/CMD / 2016004604
19
IV CHECKLIST:
S.NO DESCRIPTION SUPPLIER’S
CONFIRMATION 1. Detailed Technical Specifications, Signed & Enclosed. Yes / No
2. Filling and furnishing GTP Yes / No
3. Acceptance for all commercial terms, Signed & Enclosed Yes / No
4. Catalogues in respect of switchgears and Meters Enclosed Yes / No
5. Details of Panel Builder and acceptance letter from the builder Enclosed / Not Enclosed
Deviations if any: Acceptance of the supplier:____________________________
(Supplier to sign and send along with their offer)
AIR CIIRCUIT BREAKER
DESIGNATION NO
CAPACITY / SHORT
CIRCUIT RATING / NO. OF
POLES
NO OF SUCH
BREAKERS
REQUIRED
XV. DRWG. NO: 01 / SHAR / CMD / 2016004604
MAIN LT PANEL
1
6 7 8 10 119 1615141312
32
54
AIR CIECUIT BREAKER
DESIGNATION NO
CAPACITY / SHORT
CIRCUIT RATING / NO. OF
POLES
NO OF SUCH
BREAKERS REQUIRED
POLES REQUIRED
1 4000A, 4P, 80kA 1
2 4000A, 4P, 80kA 1
3 4000A, 4P, 80kA 1
4 4000A, 4P, 80kA 1
5 4000A, 4P, 80kA 1
6 800A, 3P, 50kA 1
7 1000A, 3P, 50kA 2
8 1250A, 3P, 50kA 1
POLES
9 2500A, 3P, 65kA 2
10 800A, 3P, 50kA 1
11 1000A, 3P, 50kA 1
12 2500A, 3P, 65kA 2
13 800A, 3P, 50kA 1
14 1000A, 3P, 50kA 1
15 1250A, 3P, 50kA 1
16 2500A, 3P, 65kA 2
AIR CIIRCUIT BREAKER
DESIGNATION NO
CAPACITY / SHORT CIRCUIT
RATING / NO. OF POLES
NO OF SUCH BREAKERS
REQUIRED
XVI. DRWG. NO: 02 / SHAR / CMD / 2016004604
DG MAIN PANEL
1
54 6 97 8
2
3
1 2500A, 4P, 65kA 1
2 2500A, 4P, 65kA 1
3 2500A, 4P, 65kA 1
4 2500A, 3P, 65kA 1
5 2500A, 3P, 65kA 1
6 2500A, 3P, 65kA 1
7 2500A, 3P, 65kA 1
8 2500A, 3P, 65kA 1
9 2500A, 3P, 65kA 1
. XVII. DRWG. NO: 03 / SHAR / CMD / 2016004604
DOUBLE BUS BAR CHANGE OVER PANEL
1
4 5 7 108 1716141311
32
6 9 12 15 18
CHANGE OVER
ARRANGEMENT
CONSTITUTING BREAKERS & RATINGS NO OF SUCH
ARRANGEMENTS
REQUIRED
I 4,5,6 EACH 250A, 4P, 36kA MCCB 6
II 7,8,9 EACH 400A, 4P, 36kA MCCB 1
III 10,11,12 EACH 630A, 4P, 50kA MCCB 1
IV 13,14,15 EACH 1000A, 4P, 65kA ACB 2
V 16,17,18 EACH 2000A, 4P, 65kA ACB 2
BREAKER
DESIGNATION NO
CAPACITY / SHORT
CIRCUIT RATING / NO.
OF POLES
NO OF SUCH
BREAKERS REQUIRED
1 2500A, 4P, 65kA ACB 1
2 2500A, 4P, 65kA ACB 1
3 2500A, 4P, 65kA ACB 1
NOTE: Both Mechanical and Electrical Interlocking shall be provided
between the breakers 1 and 2, such that ONLY ONE breaker can be ON AT
ANY TIME.
NOTE: 1. Both Mechanical and Electrical Interlocking shall be provided
between the incoming breakers for each change over arrangement.
Example: In change over arrangement I, interlocking shall be between
breakers 4 and 5 such that ONLY ONE breaker can be ON AT ANY TIME.
2. Interlocks for EACH and EVERY Change Over Arrangement shall be
UNIQUE.
S a t i sh Dhawan Spac e Cen t e r SHAR S a t i sh Dhawan Spac e Cen t e r SHAR S a t i sh Dhawan Spac e Cen t e r SHAR S a t i sh Dhawan Spac e Cen t e r SHAR
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