Electrical Works

Supply, Erection, testing and commissioning of 11KV 25 KA 630Amps 3 Panel HT INDOOR RING MAIN GEAR Switch board suitable for Indoor installation comprising two incomer Load break switches panels and one outgoing 11 kv HT Vacuum Circuit Breaker complete as per TANGEDCO specification with Mechanical inter lock between incomers. 1.Supply and Erection of Draw out type 11KV 25KA 630Amps Horizontal draw out/Horizontal Isolation VACCUM CIRCUIT BREAKER filled with motor(230V AC) operated spring charged Mechanism, with ON and OFF mechanical Indicator Anti Pumping Device, 110V DC Shunt Trip and Closing Coils (DC source of supply to be derived from a power pack suitable for three Tripping and two closing operations incorporated on Incoming panel only) Mechanical Operation counter, 4NO + NC Spare Aux. Contact with contact multiplication Contactor for customer use. Automatic safety shutter, Mechanical close/Trip Knob, Mechanical ON/OFF Indication, Operating Handle, 230V AC to 110V DC Power pack operating Handle etc.-1No 2. Supply and erection of 11KV 630Amps 25KA HT Air Break/Load Break Switch with mechanically inter locked earth switch, front operated spring assisted manual closing mechanism, 2 NO+2NC Aux. Contact operating handle etc.- 1No 3. 11KV/Root 3/110V/Root3-Three Phase 3 Limb 50VA class 0.5 Resin cast Draw out type potential Transformer complete with HT and LT HRC fuses with sealing arrangement-3 Nos.

Supply and providing cable end termination suitable for 3 core 300 sq.mm HT Cable outdoor Terminations 11KV (UE) - Belted PILC cables XLPE HTUG cable with necessary outdoor type heat / cold shinkable joint kit and accessories. (Make: RayChem)

Supply and installation of GI perforated cable tray with cover of the following sizes 300 mm width x Depth 50 mm thickness 14 SWG The cable tray shall be fabricated in standard length of 2.5 meter of size with suitable supporting arrangements shall be provided at equal intervals with suitable angle/ channel from the wall / ceiling while erecting the cable tray. Jointing of cable trays shall be GI Coupler plates to match the dimension of the cable tray. Fixing both for the jointing of the tray and fixing of the trays on the structure shall be with Thread Rod or approved type of corrosion resistant fixtures.

Preparation of electrical schematic diagram site plans physical layout 5 copies and payment of CEIG fees submission of completion report obtaining drawing approval safety certificate etc., complete including lamination copy fixed at panel room (Only HT Side)

Liasioning charges for MRT Testing, installation charges, packing, forwarding and Transporting complete etc.,