To reduce the chance of electrical shock and fires, service panels need to be grounded. Proper grounding directs unwanted electrical current from the home into the ground. Installing a grounding rod ...

Proper grounding and bonding prevent unwanted voltage on non-current-carrying metal objects, such as tool and appliance casings, raceways, and enclosures, as well as facilitate the correct operation ...

(A) Grounding Electrode. To provide a path to earth for lightning, each building or structure must have its disconnecting means [225.31] grounded (earthed) to one of the following electrodes [250.50 ...