13) What is the main reason for leakage current flowing in wring installation?

14) How many earth continuity conductors should be provided from the machine to panel board and to the main earth electrode?

15) Which size of GI conductor is used for earthing to the motor from the main electrode?

16) What is the colour code of protective earthing conductor as per NE code?

17) What is the recommended resistance value of earth continuity conductor used in domestic wiring installation as per IE Rules?