Dindigul EDC- - works Contract for provision of 25 Nos. Additional Earth Pit and earth mat at Dindigul 110/22 KV Substation in EE/OM/South Dindigul Division

Amount

Labour, machinery, consumables for fabrication, erection of earrthmat, earth connection, earth electrode, earthspike (including sharpening of earth spike). As directed by the field engineer with electricity supplied by Department at free of cost.

Labour, machinery, consumables for fabrication, erection of earrthmat, earth connection, earth electrode, earthspike (including sharpening of earth spike). As directed by the field engineer with electricity supplied by Department at free of cost. (LC period 30% extra)

Providing Earth bore 140/150 mm dia using power rig or 100/125 mm dia using hand bore set including the labour, lead, lift etc., sedimentary strata of clay & sand stone shale pebbles boulders etc., for earth Pits with supply and providing of Bentonite powder(Sodium Bentonite) 5Kg /Mtr depth of the bore mixed with low resistivity earths as directed by the field Engineer. (Earth to be supplied by the contractor)

Labour for excavating and refilling of earth /trench for earthmat, cable, etc., of any size/depth narrow excavation as directed by the field engineer (Semi density rock soil)

Labour for excavating and refilling of earth /trench for earthmat, cable, etc., of any size/depth narrow excavation as directed by the field engineer (normal/clay soil)

Supply and providing of 450-600 mm dia, 300 mm height, 36 mm thick cement collar with top cover for identification of earth electrode location as directed by the field engineer