Copper Strip ISI Mark size 25mm x 3 mm including connection with brass nut bolt spring washer etc For use outside the Building, Multi strand single core PVC insulated copper cable 16 square mm as per IS 694 With cupper lungs 16 Nos with appropriate size with brash nut bolts and spring washers etc, Earth Pit of the Size of 1 metre diameter and 3 metre depth shall be excavated after depth of 3 meters the size of excavation shall be 900x300x 900 mm depth, a 450x450x450mm inside dimension concrete box with smooth cement plaster finish a concrete lid painted black approx 50 mm thick with pulling hooks, 600 mm x 600 mm x 3 point 15mm pure copper plate purity not less than 99 percentage lab purity certificate should be attached, copper bus bar purity not less than 99 percent 450x25x6mm min dimension with brass nut bolt spring washer etc 8 holes at equal distance, gi pipe with funnel for watering 40mm dia and 4meter length holes of 12 mm dia within 15 cm from bottom upto 2 metre height, Charcoal, Salt, Ground monitoring system with all accessories for installation, ITC charges including brazing riveting and welding 120 degree bends fitting fixing clamping accessories other accessories etc