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Thread: grounding and bonding xfmrs

  1. #1
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    grounding and bonding xfmrs

    I know how to do this but I cannot find all of the code articles about it. My biggest question is on the gec. So it goes to xo, and must be bonded where it enters the xfmr case right? I have read about and have seen special connectors that create a bond where your gec enters the case but cannot find the code article on it. thanks

  2. #2
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    Welcome to the forum.

    250.30. You can bond the XO inside the transformer or inside the first disconnect and your GEC lands in the same location as the bond.
    Once in a while you get shown the light
    In the strangest of places if you look at it right. Robert Hunter

  3. #3
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    Sometimes this guide helps.
    As ActionDave states, 250.30 has your basic requirements.

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    At my age, I'm accustomed to restaurants asking me to pay in advance, but now my bank has started sending me their calendar one month at a time.

  4. #4
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    I love that graphic.
    Once in a while you get shown the light
    In the strangest of places if you look at it right. Robert Hunter

  5. #5
    Join Date
    Jan 2009
    Location
    Maryland
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    11,056
    The only clamp the OP refers to that I can think is a kenny clamp. Never used one myself. Always mounted a little busbar.


    http://kennyclamp.com/
    "Electricity is really just organized lightning." George Carlin


    Derek

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