Name of Work: Replacement of faulty submain wiring and earthing system at School of Agro and rural Technology, IIT Guwahati Campus
Sl. No.
Item Description
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PART A
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Suplly and drawing following sizes of FR PVC insulated copper conductor,single core cable in the existing surface/recess/pVC conduit as required make Havells/Finolex/RR Kabel or equvalent
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i) 2 x 4 sqmm + 1x 4sqmm earth wire
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i) 2 x 4 sqmm + 1x 4sqmm earth wire
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ii) 2x 6 sqmm + 1x 6sqmm earth wire
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Supplying and fixing of following ways single pole and neutral sheet steel MCB distribution board 240V on surface /recess complete with tinned copper busbar neutral busbar earth bar din bar interconnection power painted including earthing etc as required ( But with out MCCB /RCCB/ISolator)
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i) 12 way , Double door
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Supply and fixing 5amps to 32amp 240/415V 10KA C curve miniatutre ckt braker suitable for inductive load of following poles in the existing MCB DB complete with connection testing and commissioing etc as required
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i) Single pole
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(ii) Double pole
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Providing and fixing 25mm X 5mm copper strip in 40mm dia GI pipe from earth electrode including connection with brass nut, bolt, spring, washer excation and re-filling etc. as required
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Providing, laying and fixing following dia G.I pipe(medium class) in ground complete with G.I fittings including trenching (75cm deep) and re-filling etc as required
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50mm dia
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PART B
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Supply,Installation,testing and commissioning of copper chemical earthing system to achieve earth resistance value of the earthing system below 1 ohm with 80mm dia, 3 meter length MF pure copper earth electrode, suitable coupler, clamps,pit cover, high quality earth enhancing compound etc as required. Make JVM LPS ltd ( including 50KG Compound)
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