bids are invited for items with 01 year warranty material for construction of earthing pits , material for construction of concrete box with lid , copper plate , copper bare wire single core , copper strip , copper rod lightning arrestor , pvc insulated multi strand copper cable for la , gi pipe , brazing of interconnection , equipotential earth bus bar with covered box , material for construction of inspection chamber , frangible fibre reinforced plastic frp poles , ss anchor bolt with suitable nuts , pvc pipe for earth pits , suitable gi base plate to mount 4 inch gi pipe , common salt , charcol , 16 amp plug top , 3 core electrical cable , steel guide wire single strand for laying inside gi pipe , weather proof cpvc box , rf surge protectors , installation testing and commissioning material for construction of earthing pits, material for construction of concrete box with lid, brazing of , sodium oxalate salt total quantity : 3046