Plate Earthing: In plate earthing system, a plate made up of either copper with dimensions 60cm x 60cm x ( 2ft x 2ft x 1/8 in) or galvanized iron (GI) of dimensions 60cm x 60cm x mm (2ft x 2ft x ¼ in) is buried vertical in the earth (earth pit) which should not be less than 3m (10ft) from the ground level.