Grounding methods in mission critical facilities
Low resistance grounding is used to reduce damage caused by high currents flowing during ground faults. Although more common on medium-voltage systems, they can also be used on low-voltage
All high-voltage distribution boxes are grounded
Home / All high-voltage distribution boxes are grounded
They are grounded to limit voltages imposed by lightning events, line surges or unintentional contact with higher-voltage lines and to provide voltage stabilization during normal system operation. The NEC provides several rules related to grounding of these systems and equipment. Safety of Personnel: By safely channeling fault currents into the ground, proper grounding helps to reduce the risk of electric shock to personnel. The primary function of a grounding grid is to protect people and non-current carrying metallic objects, such as poles, towers, equipment enclosures, and switch handles, by keeping the ground potential as close to zero as possible during fault conditions.
