Connect the ground wire of the electrical equipment to the distribution box
To safely ground a metal box, connect an equipment grounding conductor (typically a bare or green insulated wire) from the box to the main electrical panel's ground bus bar. During fault conditions, low impedance results in high fault current flow, causing overcurrent protective. This mechanism helps to prevent electric shocks, equipment damage, and fire hazards. Metal electrical boxes must be grounded because they are conductive components that enclose energized wires and connections.
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