National Electrical Code 2023 Basics: Grounding and
Equipment grounding is the connection to the ground of non-current-carrying conductive materials – e.g., cable trays, metallic conduits, junction
Read MoreDoes the grounding of the distribution box need to be run through a conduit
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Instead, you'll need to splice the NM cable hot and neutral to THHN in the interior junction box. Safety of Personnel: By safely channeling fault currents into the ground, proper grounding helps to reduce the risk of electric shock to personnel. This helps to reduce the potential difference that exists between conductive parts and the earth. A conduit is a protective layer that keeps electrical wiring safe from corrosion and damage. 7 Provide conduit grounding bushings, bonded together and connected to the equipment enclosure on all incoming and outgoing conduits on distribution switchgear and switchboards, distribution panels and on all conduits over 1-1/4" diameter at all panelboards, pull boxes and equipment.