The primary safety purpose of equipment grounding (bonding metal enclosures to the equipment grounding conductor) is to:

Giải thích

Equipment grounding provides a low-impedance path for fault current so the breaker or fuse clears the fault fast and enclosures do not remain energized to a dangerous voltage. It does not regulate voltage, lower the bill, or replace GFCI protection, which detects small leakage currents to protect people.