Providing and fixing lightening arrestor at 11KV and 3.3KV overhead conductor at inside and outside of plant at Sawang Washery.

Amount

Supply and erection of three piece nonlinear resistor type lighting arrestor suitable for 3 wire, 11KV overhead line with rated voltage 9KV (rms) with a nominal discharge current rating of 5KVA and complete with galvanized clamping arrangement, GI bolt nuts washers etc. as required.

Supplying and erecting earth pit of minimum bore dia 150mm dia size, approved mate safe earthing electrodes consisting pipe in pipe technology as per made corrosion free GI pipe with constant ohmic value surrounded by highly conductive compound with high charge with dissipation suitable for effective and maintenance free earthing with 3 mtrs. GI pipe having outer pipe dia of 50mm having 80-100 micron gavanizing connection terminal dia of 12mm in nominal soil with 50 Kg. two bag back filling compound.

Providing and fixing 25mm x 5mm GI strip on surface or in recesses for loop earthing as required (10mtrs. X 05nos. = 50 mtrs.)

Total impact of GST for the purpose of CTC

MAA ENGINEERING AND CONSTRUCTION

KIRAN ENTERPRISES