provision of chemical earth pit for equipment room , wcdma tower , l and a faculty and nfs project at afac coimbatore , supply , installation & testing of maintenance free chemical earthing of copper coated electrode pipe of length 3 mtr long and 76 mm dia , having terminal size 50x6 mm , the earth electrode pipe is tightly filled with crystalline conductive mixture ( ccm ) and then sealed . the electrode shall be installed by making bore of 200 mm dia & 3 mtr deep below normal ground level , after using & including 10 kg ground enhancing material , the electrode shall be surrounded by and including 60 kg back fill compound ( chemical compound provided by manufacturer ) complete including making earth pit chamber of size 30cm x 30 cm x 15 cm complete . make: innove infra solutions , cat no . ele-380-cu or equivalent in jmv lps ltd . note:- earth continuity step required shall be measured and paid separately under item no . 03 below . , m&l for test point terminal block made of gun metal or phosphorous bronze size 75x75x25 mm drilled and screwed including 3 nos 8 mm dia 25 mm long hex head screw all as specified and directed . , m&l for earth continuity conductor or main earthing lead fixed to wall on batten or recess or chases or buried in ground or drawn in conduit / pipe or fixed to pole or any other indicated situation or for loop earthing complete of copper strip size 32x6 mm fixed by using and including suitable size of porcelain insulators in such a manner that strip can be separated from the wall . , m&l for 40 mm dia gi tube light grade , galvanised with all fittings for fixing including fixing arrangement such as clamps , nuts bolts , etc as required , complete all as specified and directed . make: tata/zenith/jindal , m&l for air termination rod , single pointed , copper rod 12 mm dia and 300 mm long complete all as specified and directed .