Name of Work:- Complete Repairing of 3 Nos. 440 V/ 550V ACB at Chitra Colliery under SP Mines Area
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Item Description
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Item Description/ Heading
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Complete Auxiliary Wiring circuit repairing including protection circuit with supply of 2.5 Sq.mm PVC single core copper wires copper lugs, connector etc
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Repairing of closing & tripping mechanism with supply of trip coil and other missing spares
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Supply & firing of 100 VA, 440V/110V epoxy moulded PT with PT Fuse
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Supphy & Fixing of glass epoxy separator
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Terminal Bushing insulator with current carrying contacts.
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Repairing of are chute assembly with supply of necessary spares in place of damag
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spares Supply & fixing of Numerical Earth leakage relay current range 300 mA to 3000 mA with 100mm Dia fiber moulded CBCT & required Auxiliary wiring for relay to
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tripping circuit Complete painting the above ACB by one coat of Anticorrosive Red oxide paint &
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two coats of Metallic paints
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Complete overhauling & testing of entire Switch
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CMPS @7% & CMPF@12%
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Overhead & supervision cost @10%
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