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Thread: 400 amp service grounding

  1. #11
    Join Date
    Dec 2006
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    Either way (500 or 600 kcm) you need a 1/0 grounding electrode conductor.
    They say I shot a man named Gray and took his wife to Italy
    She inherited a million bucks and when she died it came to me
    I can't help it if I'm lucky



  2. #12
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    I would definite ask the inspector why you must use a single 400 amp panel. That will cost twice as much as 2-200 amp panels
    They say I shot a man named Gray and took his wife to Italy
    She inherited a million bucks and when she died it came to me
    I can't help it if I'm lucky



  3. #13
    Join Date
    Jul 2003
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    I would guess that the 2-200 amps panels are not grouped together, hence the requirement for a main.
    Rob

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    All responses based on the 2014 NEC unless otherwise noted

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