voltage surges earth minimizing high moisture home ensure youre renovating connections upgrade qualified electrician electrical surges preventing damage electrical appliances damage caused earth reducing fault currents lowresistance path electrical system involves connecting safely diverted safety measure faridabad sector 66 grounding system grounding components grounding conductors grounding electrode grounding conductor metal rod electric shock earth grounding conductor metal rod driven electric shock grounding grounding electrode typically provide additional protection common connection point professional installation hire metallic bar serves protect electronic devices