A. Give good regulation
B. Give support to the tower
C. Connect a circuit conductor or other device to an earth-plate
D. Avoid overloading
Answer: C. Connect a circuit conductor or other device to an earth-plate
Explanation:
Earth wire is connected to the ground because ground or earth is the reference point in an electrical circuit.
The main function of the earth wire is to prevent live wire from overloading and absorbs the excess electrons & flows to the ground.
Galvanized steel wire is a versatile wire that has undergone the chemical process of galvanization.
The size of the earth wire is determined by the ampere capacity of the service wires.
Minimum size of earth wire for light circuit is 1 mm square for copper and 1.5 mm square for aluminum.