supply of rmu unit and connected earthing works for the electrification of drive train testing lab at energy management centre, sreekariyam trivandrum supply of rmu unit and connected earthing works for the electrification of drive train testing lab at energy management centre, sreekariyam trivandrum , plate earthing - supply and providing earthing with ci earth plate 600mm x 600mm x 6mm thick electrode including accessories, and providing masonary enclosure with cover plate having locking arrangement and watering pipe of 2.7 meter long etc. with charcoal/coke and salt as required conforming to relevant is, electrical inspectorate standards etc , earthing conductors- supply and providing the earth conductors of the following sizes and laying in earth excavated trenches, clamping in built up trenches, walls, trays, racks, risers, trusses, etc. using heavy duty aluminium flat or heavy duty gi spacer saddles of which spacing of clamps not exceeding 60cm without making holes in the earthing conductor and pulling through pipes including all minor civil works. all the joints should be properly tinned and connections should only be done using ss nut and bolts with double washers etc as required. 25 x 3 mm copper strip , ring main unit- 12 kv, sf6 ring main unit complete (extensible/outdoor) make schneider (2 isolator + 1 breaker) fbx-e/12-20/cct2/outdoor – motorised +battery charger