supply of 11kv hw t and c type supply of 11kv hardware fitting for 45kn t and c type polymer disc insulator , hardware fittings for 11kv 45 kn polymeric disc insulator tongue & clevistype having clevis ended aluminium alloy clamp suitable for acsr raccoon conductor having an accommodation up to 100mm2 . the ultimate strength of clamps shall not be less than 3000 kgs . the fittings shall conform to is:2486 part i /pt . ii/pt . iii/ part . iv with the latest amendments thereof . aluminium alloy tension clamp shall be consisting of one aluminium alloy keeper , two galvanised iron u bolts and 4 nos . galvanised iron spring washers of 12mm dia suitable for acsr conductor . one forged steel cotter pin with one galvanised plate washer of size not less than 2mm thick and one phosphor bronze / brass split pin for inter connecting the tension clamp . all ferrous part to be hot dip galvanised as per iss 2633 /1972 .