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Thread: Panel grounding question

  1. #1
    Join Date
    Jul 2011
    Location
    destin florida usa
    Posts
    2

    Panel grounding question

    We just finished having a log cabin built in North Carolina and we have 200 amp service with 3 lines coming in from the power compony to a Square D panel with a meter and master disconnect and a couple breakers feeding outside stuff, located on the outside of the basement. The main breaker panel is located on the inside basement wall almost directly in line with it. The electricians have it grounded to the outside panel which is in turn grounded to 2 ground rods. My home in Florida has this exact same setup except the inside panel is grounded to a re bar rod put into the foundation. I was curious if both are correct or if one is better than the other for grounding? Neither inside panel has the green bonding screw installed. Thanks for any answers,, Matt (Both homes were wired by licensed electrical contractors)

  2. #2
    Join Date
    Feb 2003
    Location
    Massachusetts
    Posts
    49,022
    Both are fine.

  3. #3
    Join Date
    Feb 2003
    Location
    Massachusetts
    Posts
    49,022
    I have to add that this forum is not really for home owners but because you are not asking how to do your own work we can answer your questions.

  4. #4
    Join Date
    Jul 2011
    Location
    destin florida usa
    Posts
    2
    Sorry I didn't realize it was just for the Pros,, but I understand. Thanks for the answer, I was just curious because they were grounded so differently,, Thanks again!! Matt

  5. #5
    Join Date
    Dec 2007
    Location
    NE Nebraska
    Posts
    19,244
    Quote Originally Posted by iwire View Post
    Both are fine.
    Though I doubt there will ever be much problem with anything, you sure they are code compliant?

    If I am reading it correctly the outside panel in both cases is also housing the service disconnecting means. The grounding electrodes need to be run to the service equipment or any point on the supply side like maybe to to where the service drop is connected. You can connect electrodes to the equipment grounding conductor at any point beyond the service but any electrode required to be used has to go to the service AFAIK.

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