This is an old fashion Main Switch Board, the sub main cable with the main switch melted. We have to modify the main switch board in order to replace the main switch as the old parts no longer can be purchase. We cut off the burned sub main cable and join it with a new one then replace the main switch after some alteration; power is back in no time! We are your Taman Petaling experience electrician, please call us if you need our expertise!!!