~References~ Department of Electrical Engineering - IIT Chennai Indian Oil Corporation Limited Civil Engineering Division Department of Electrical Inspectorate - Govt. Of Kerala Office of the Chief Electrical Inspector to Government - Chennai Bharat Electronics Limited Hyundai Motor India Ltd. Bharat Sanchar Nigam Limited Bharat Heavy Electricals Limited CPRI Type 19 CPRI Type 39

Department of Electrical Inspectorate - Govt. Of Kerala