Electrical Works & Installation Tenders

Excavation of cable trench:-This item shall be operated in conformity with IS:1255(latest version) i.e. code of practice for installation and maintenance of HT/LT cables. The price shall cover cost of excavation of cable trench in all type of soil for laying LT cables and back filling the same with sieved earth and finishing the surface in its original condition after providing sand, & bricks in cross position. For LT/HT cables the trench shall be 600mm wide x 1000mmdeep. In 6 trench the cable shall be covered with rivers and at a depth of 100mm below the cable and 100mm above the cable than placing well-burned bricks continuously in cross position through out the cable route in the ground. The bottom of the trench should level free from stones and sharp edge of rocks etc. At the termination a loop of 5 meter(approx.) cable shall be kept as allowance and loops rings be formed as per the site condition, in the ground, The cost shall include the cost of all materials i.e. sand, bricks, cable route markers (grouted in the earth firmly with cement concrete so that it can not be uprooted by miscreants) etc at 25m.interval and each turn of the cable.

M&L in replacement for Earthing with galvanised steel earth plate electrode 60cm x 60cm x 6mm thick, buried directly in ground (earth pit not less than 2.25 metres deep below ground level) with top edge of the plate not less'than 1.5 metres below normal ground level, connected to galvanised iron strip 25 x 4mm as earthing lead by means of bolts, nuts, check nuts and washers of galvanised iron or steel all as shown in electrical plate No. 3 connected to earthing test point including taking down old earthing all as specified or indicated including testing on completion and submission of test report by contractor complete all as specified and directed.

Wiring for light point/ fan point/ exhaust fan point/ call bell point with 1.5 sq. mm FRLS PVC insulated copper conductor single core cable in surface/ recessed medium class PVC conduit, with modular switch, modular plate, suitable GI box and earthing the point with 1.5 sq. mm. FRLS PVC insulated copper conductor single core cable etc. as required. (Group C)