bids are invited for earthing system - earthing system complete with copper (cu) plate of 600mm x 600mm x 3.15 mm connected with copper strip of 25mm x 3mm from copper plate to earth pit termination bus bar, 40mm diameter, 4.0 meter long, cpvc pipe for watering, and earth pit termination bus bar (300mm x 50mm x 6mm), inspection chamber, earthing pit cover (450mm x 450mm), salt, charcoal & accessories etc with all civil/ electrical work, as per requirements of the tender and specifications mentioned. , copper strip - copper strip of 25mm x 3mm with accessories as per the requirements of the tender and specification mentioned. , pvc insulated copper cable 16 sq mm or more - pvc insulated copper cable of size 16 sq mm or more for connecting equipment as per requirements of the tender and specification mentioned. , pvc insulated copper cable 35 sq mm or more - pvc insulated copper cable of size 35 sq mm or more as per the requirements of the tender and specifications mentioned. , gi pipe - gi pipe of class b and minimum diameter of 40mm as per the requirements of the tender and specification mentioned. , equipotential protector or transient earth bonding - equipotential protector (transient earth bonding) teb and accessories / items, installation material etc as per the requirements of the tender and specification mentioned , vertical air terminal or lightning arrester - vertical air terminal/ lightning arrester of minimum length 1200mm and diameter 25.4mm, with all accessories/ items, installation material etc. as per the requirements of the tender and specification mentioned. , fibre reinforced plastic pole - fibre reinforced plastic (frp) pole for installation of vertical air terminal as per the specifications mentioned for vertical lightening arrestor with accessories as per the requirements of the tender and specification mentioned. , hdpe pipe - hdpe pipe (diameter 50mm, thickness 3mm or more) for installation of lightning protection system down conductors with ac