The Institute Of Mathematical Sciences Tender
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The Institute Of Mathematical Sciences - IMSc Tender
Electrical and Electronics
Eprocure
Opening Date19 Jul 2024
Closing Date19 Aug 2024
Tender Amount₹ 27,63,300
Costs
EMD
₹ 55,266Document Cost
Refer DocumentsTender Fee
Refer Documents
Summary
Strengthening Of Electrical Distribution Systems At Imsc, Chennai-113.
Description
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Contact
Tender Id
2024_IMSC_816930_1Bid Award Id
ViewTender No
IMSc /Elec / e-TR-03/2024Tender Authority
The Institute Of Mathematical Sciences ViewPurchaser Address
-Website
http://eprocure.gov.in
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Documents
BOQ Items
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Incomer:
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1 No - 400 Amps, 415V, 4 POLE, Manual Change over switch with it’s complete set.
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1 Set –400/5A,CL:1.0, 15VA Current transformer
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1 Set – LED type RYB, Breaker ON OFF indication lamps with control MCBs
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1 No. – Digital type Ammeter meter with selector switch (0-400A)
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1 No. – Digital type Volt meter with selector switch (0-500V)
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Bus bars :
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1set of 500 A TPN (Al.) + E (cu.), 25KA for 1sec. with colour coated heat shirnkable PVC sleeves with DMC/SMC busbar supports and suitable earth bus.
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Main bus bar 415 V, 25KA, 500 A TPN Sleeved electrolytic grade aluminium for phase and neutral and copper earth bus 1R 25 x 6 mm or equivalent for earth.
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Outgoing feeders :
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1 no - 200 A , 415V, TPN, SFU and DIN type HRC Fuse with heavy duty suitable terminal connectors.
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3 no - 100 A , 415V, TPN, SFU and DIN type HRC Fuse with heavy duty suitable terminal connectors.
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Removal and re-installation of following existing 11KV/433V Electrical sub station equipments, power and lighting panels, Cabling, end terminations and earthing to increse the adequate height of the panels by hot dipped Galvanized MS Channels, L angles and other supports by the professinal grade Fabrication work as specified in concerned drawings. Supply and fixing of new cable end termination by new cable sockets with proper earthing and completion of the entire commissioing works are included in this scop of work as directed by engineer in charge. ( The cost of metal channel and its measurements are covered in item no.18.01 )
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Substation Battery bank and the panels
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Various main power panels and main lighting panels placed in various building ground floor installed as MLP, MPP, UPS PANEL panels , ATS , battery bank racks etc. ( Contractor are requested to quote their rate after site inspection and based on the the scope of work.)
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CABLING WORK: Supply, laying, testing and commissioning of 11KV (E) / 1100V grade following sizes XLPE insulated and PVC sheathed Armoured CU / ALU. UG cables including necessary clamping and earthig works suitable for the existing electrical arrangements and completion of the work as directed by engineer in charge.
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In build up trenches, on walls with proper clamping through embedded pipes on floor including fixing of all material as per the scope of work including supply and laying new cables as specified.
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4C x 150 sq mm 1100V XLPE Aluminium Ar. UG cable
600
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4C x 50 sq mm 1100V XLPE Aluminium Ar. UG cable
200
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4C x 25 sq mm 1100V XLPE Aluminium Ar. UG cable
250
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4C x 2.5 sq mm 1100V XLPE Copper UG cable
150
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In ground, including brick covers on top and both sides of the cable with 100mm sand cushion suitable for the cable size as specified. The charges for the earth work excavation for making cable trenches for various size cables for the laying and back filling also inculded in this item.
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4C x 150 sq mm 1100V XLPE Aluminium Ar. UG cable
100
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4C x 50 sq mm 1100V XLPE Aluminium Ar. UG cable
100
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4C x 25 sq mm 1100V XLPE Aluminium Ar. UG cable
150
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4C x 2.5 sq mm 1100V XLPE Copper UG cable
100
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End termination of the following 11kv / 1100 v grade XLPE insulated Armoured Copper / Aluminium conductor UG cables including supply and fixing of single compression cable gland, crimping lugs and gland earthing. (Refer Section V for more details – CU Sockets for CU cable & Alu.sockets for Alu.cable )
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4C x 185 / 150 sq mm 1100V XLPE Aluminium Ar. UG cable
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4C x 25 / 35 / 50 sq mm 1100V XLPE Aluminium Ar. UG cable
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4C x 2.5 sq mm 1100V XLPE Copper UG cable
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Earth work excavation in all type of soil / RCC ceiling / brick work / RCC floor / cement concreate work etc., for making cable trenches for various size cable for the laying and back filling the same in to original Laval consolidating and removing excess soil as per the specification within 100 Mt radius as directed by engineer in charge.
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Supply, Installation, Testing and commissioning of MS fabricated metal sheet enclosure assembled with 4 pole, 400A, 415V, 50Hz, manual changeover switch including all fixing accessories and completion of the work as per safety codes and as directed by engineer in charge.
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Supply, Installation, Testing and commissioning of MS fabricated metal sheet enclosure assembled with 4 pole, 630A, 415V, 50Hz, manual changeover switch including all fixing accessories and completion of the work as per safety codes and as directed by engineer in charge.
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Supply, Installation, Testing and commissioning of MS fabricated metal sheet enclosure assembled with 4 pole, 100A, 415V, 50Hz, manual changeover switch including all fixing accessories and completion of the work as per safety codes and as directed by engineer in charge.
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CABLE JOINTS
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Supply, Installation, Testing and commissioning of 4 core 185/150 sq mm Al. Ar cable Heat shrinkable / M-seal type straight cable joint kits with all fixing accessories and completion of the work as directed by engineer in charge.
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Supply, Installation, Testing and commissioning of 3/4 core 120/95/75/50 sq mm Al. Ar cable Heat shrinkable / M-seal type, straight cable joint kits with all fixing accessories and completion of the work as directed by engineer in charge.
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Supply, Installation, Testing and commissioning of ¾ core 16/25/35 sq mm Al. Ar cabl Heat shrinkablee / M-seal type, straight cable joint kits with all fixing accessories and completion of the work as directed by engineer in charge.
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Supply, Installation, Testing and commissioning of 4 /3 core 10/6/4/2.5 sq mm CU/ Al. Ar cabl Heat shrinkable / M-seal type, straight cable joint kits with all fixing accessories and completion of the work as directed by engineer in charge.
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EARTHING :
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Supply, installing, testing and commissioning of 600 x 600 x 3.0 mm thick electrolytic grade COPPER plate earthing assembly as per IS 3045 and drawing no: IMSC/Cu/Earth/01 with all the accessories including 50x6mm copper flat minimum 3 mtr long, GI pipe with funnel, filled by salt, charcool, sand etc., as required. The electrode shall have provision for connecting earth flats/strips as specified. A masonry structure of wall thickness of not less than 230mm shall be constructed to a depth of 450mm with heavy duty SFRC cover. (Refer section-V for more details)
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Supply, installing, testing and commissioning of maintenance free ASHLOK / ERIC copper pipe electrode of 3 mtr long 80 mm dia dual PIP with flat buried in ground with back filling compound in an earth pit of 450 x 600 x 3000mm mixed with sand in alternate layers of 150mm each up to a height of 2550mm from bottom. The pipe shall have provision for connecting earth flats / wires. A masonry structure of wall thickness of not less than 230mm shall be constructed to a depth of 450mm and heavy duty SFRC cover shall be used to cover the pit as per drawing no : IMSc/GI/Earth/02. (Refer section-V for more details)
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Supplying and laying of 70sqmm green colour MSCC electrolytic grade copper earth wire with necessary clamps, bolts, nuts and washers etc., for the termination of earth grid systems.
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Supplying and running of 8 SWG electrolytic grade copper earth conductor with necessary clamps, bolts & nuts and washers etc.,
100
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Supply and fixing of 50 x 5mm electrolytic grade tinned copper flat earthing for various earth pits.
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Supply and fixing of 38 x 5 mm electrolytic grade tinned copper flat earthing for various earth pits.
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Supply and fixing of 32 x 5 mm electrolytic grade tinned copper flat earthing for various earth pits.
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MS ITEMS :
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Supply, Fabrication and Erection of Rust proff , HOT- TIPPED GALVANIZED Fabrication works by using various sizes channels / L angles to reinstall various electrical power and lighting main panels including welding works, fasteners works and masonry works with one coat of primer and two coats of enamel paint to lift the panels as directed by engineer in charge.
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Supply and fixing of 3mm thick approved make and colour Hylam sheet switch box cover with neat edge finishing and completion of the work with brass cup washers and brass screws as directed by engineer in charge
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Supply and installation of LT cable route CEMENT SLAB marker made by RCC masonary works by using adiquate size steel rod for 300 x 75 x 600 mm constructed cement slab with required intervel and completion of the work with soil removal, marking yellow paint and letters and soil re-filling as directed by engineer in charge .
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Supply and Fixing of First Aid Kit suitable for 15 persons as per detailed specification. Model No. MEDIC 2500 IN, Make: Thadhani or equivalent.
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Supply and fixing by neat cleaning the floor, proper pasting and laying of following insulating mat as per specification.
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3 mm thickness, maximum usable voltage 33kV, AC Proof voltage 36kV for 3minutes, AC dielectric strength 65kV RMS Insulating Mat confirming to IS:15652.
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2 mm thick Insulating Mat, Proof Voltage Tested upto 10KV,confirming to IEC 61111.
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Supply, fabrication and erection of 300 x 75 mm GI ladder type cable trays suitable for the site condition with all fixing accessories and fastners.
20
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