Mike Dolt Enterprises
Mike Dolt Enterprises
User: mike johnson, Location: Chapel Hill, NC
Asked on: Wednesday, March 30, 2011 at 3:14 pm EDT
Answered on: Tuesday, May 14, 2024 at 3:30 am EDT
Question: The equipment ground bar in a sub panel is almost always not enough for the amount of ground wires from home runs that you have to terminate inside it and you have to add a second ground bar opposite on the other side of the panel bus. My Question is do I have to run a jumper wire from the equipment ground bar that came with the sub panel to the new one on the other side or can I just count on the panel enclosure to make connectivity between the 2 ground bars? It is a sub panel so the neutrals are separate and already have there own separate bar. I'm not asking about them. Just the equipment ground bars is what I'm asking about. If you believe a jumper is needed from one equipment ground bar to the other on the opposite side can you site me the code reference from the code book? Thanks.
Yes, a jumper wire is required to connect the two equipment ground bars. According to the National Electrical Code (NEC), Section 250.28(C)(4), "Where two or more grounding conductor equipment grounding bars are installed in the same enclosure, they shall be bonded together." This means that a conductive connection must be made between the two bars to ensure electrical continuity and establish a common grounding point. Flag for review