Operation and maintenance of electrical systems/electrical installations - supply fixing of 7 mtr gi octagonal pole of approved make top dia 70mm bottom dia 130mm and base plate 12mm thick having 3mm thickness with on rcc foundation including the co..,operation and maintenance of electrical systems/electrical installations - supply and laying of aluminium conductor pvc insulated armoured served sheathed cables 1100 volts ldpe pipe for underground cable areated at a depth of 750 mm below ground lev..,operation and maintenance of electrical systems/electrical installations - supply laying of 50 mm hdpe pipe for under ground cable as required complete in all respect with laying charge including,operation and maintenance of electrical systems/electrical installations - supply and burring of safe earthing electrode t19 znzinc coated length 3000mm outer pipe 484mm x 32mm pipe 269mm x 26 terminal dia 12 mm coating 80100 micron filled with..,operation and maintenance of electrical systems/electrical installat