supply, installation and commissioning of 6300amp. acb panel for power house main distribution panel , design, fabrication, assembling, wiring, testing, supply and commissioning of coupler panel. panel shall be treated with all enticorrosive proccess before powder coating as per specifications and final approved shade(ral7035-80-120 micron). one no. earthing terminal shall be provided for panel. coupler panel is with 6300amp. acb(l&t/abb make, manual draw out, 3 pole) with amp. meter, volt meter, frequency meter and energy meter. panel should confirm to iec/nec standard. the work included with dismantling of existing 4000amp. bus coupler and installation of new 6300amp. bus coupler panel in its place and its control wiring, successful trial run after completion of work. the both side of acb busbar set should made easaly to contact to the 9000amp. horizental busduct. the busbar(al,) set must be electrolyte , its conductavity 56+ with heat shyrinkable sleeve colour coaded ,insulater, hardware make-hindlco or equivalent etc. supply, fabrication, installation and commissioning of ms structur for busduct including baseplates, angles, chanels, fastner and hardware, painting etc as required.