One type of cable used in electrical installations is a grounding cable. Grounding is a grounding system installed in electrical installations that functions to eliminate potential differences by draining residual current from voltage leakage from lightning strike currents. Because the main use of the grounding cable is as a safety for electric current leakage. Therefore, this cable must be able to carry a large current so that its function is optimal. Usually, this cable will be installed on a kWH meter which is installed directly by PLN officers to plant copper pipes in the ground.