tender for supply and fixing of 40 port dcdb at 220 kv substation phulpur, under electy. trans. division-i, prayagraj - supply of 40 port 110 volt dc distribution board, distribution board and its constituent items like switch, fuse, disconnector unit, mcbs, busways etc. shall be single phase 02 wire d.c. 110 volts, dcdb should have 2 sets of bus bars in two separate compartments to facilitate temination of incomers from battery and chargers. 2 opening of connection of all connections of 220 kv, 132 kv, 33 kv feeders and other equipments. dismantling of old & defective dcdb and alfe transportation into store. installation of new 110v, dcdb and making connections of all 220 kv, 132 kv, 33 kv feeders and other equipments. 3 laying & termination of control cable from newly installed 40 port dcdb to various control & relay panels to provide 2nd source of dc to each panels.