Bharat Sanchar Nigam Limited Tender

Supplying,Installing,Testing and Commissioning of 11kV, 630A, 26.3kA VCB Indoor metering single panel fabricated out of sheet steel of not less than 2 mm thick with base frame, provision for receiving Incoming and Outgoing through Bottom Cable Entry, Painting with Siemens Grey ( RAL 7032), control wiring with appropriate colours, with meter chamber and test block chamber etc as per the specification. The panel shall comprise the following a. Vacuum circuit breaker 11kV, 630A, 26.3kA. Horizontal Draw Out VCB with Manual / 230V AC Motor Operated Spring Charging Mechanism with 110V DC Closing /Opening Shunt trip coils, Aux. Switch, Mechanical On/Off Push Button, and mechanical Operating Counter- 1 No. b. TANGEDCO End Metering with sealing arrangement Potential Transformer: Fixed Three Phase, resin cast ,Dry type of ratio 11kV/110V, Class 0.2, 15VA, with outside HT Primary Fuses( Not bottled fuse) -1No Current Transformer: Single phase,Resin cast,Dry type, single core, 11 KV, ratio 10/5A, Class.0.2S, 5VA. - 3 Nos ( Note: The CT Ratio is to be confirmed at the time of Execution) c. Consumer end measuring instruments Potential Transformer: Fixed Three Phase, resin cast ,Dry type of ratio 11kV/110V, Class 0.2, 15VA, with outside HT Primary Fuses -1No Protection / metering Current Transformer: Single phase,Resin cast,Dry type, 11 KV, dual core with ratio 100-50/5A, Core 01:15VA/5P15, Core 02 : 05VA/0.2s class. - 3 Nos d. Metering Digital Ammeter with Inbuilt Selector Switch ( Class: 0.5) - 1No Digital Ammeter with Inbuilt Selector Switch (Class : 0.5) - 1No e. Provision for TOD meter -1 No (TOD meter is not in the scope of work)

f. Protection Numerical non directional IDMT combined 3 OC + 1 EF Relay with highset (110V, -/5 A) - 1 No High Speed Master Trip Relay (110V, -/5 A)-1 No g. Indication Lamps: VCB off / on / Auto Trip / Trip circuit healthy / Spring charge indication lamps -1 set RYB phase Indication lamps- 1 set h. Control swich/push button: Breaker control switch (T-N-C) -1 No Trip circuit healthy push button.-1 No i. Bus bar rating: Main Bus 11KV, 630A – Each with 50mmx10mm - Copper -1 Set Earth Bus – 25mm x 6mm Copper -1 Set j. Heater ON/OFF Switch with filament type 80 W Space Heater and Thermostat, Single phase switch with socket, 40 W Cubicle lamp for panel illumination with snap type Door Limit switch and MCB’s for AC / DC Control - 1 Set k. Power Pack 230VAC/110VDC-1 No The bidder has to get the Specification and drawing approval from TANGEDCO before start of fabrication of panel and after manufacturing the panel the same shall be inspected by TANGEDCO i/c CT and PT shall be tested by TANGEDCO The scope of the work includes liaisoning with the TANGEDCO for arranging inspection,drawings, extending the supply, close co-ordination and complying with their directions i/c disconnecting the 11KV cables, reconnecting the same, testing and commissioning, Dismantling existing faulty HT metering Panel and shifting the same to location indicated by Engineer incharge within compound etc as required. (All the above shall comprise of one Job)

Supplying & Laying HT Cable 11 KV rating of size 3 Core x 95 Sqmm Aluminium Conductor, Conductor Screen With Extruded Semi Conducting Compound, XLPE Insulated UG Cable on surface/ existing masonary open duct/ existing GI Pipe etc as required..(Cable shall be with ISI mark)