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Thread: Bonding conduit

  1. #11
    Join Date
    Feb 2017
    Location
    Nj
    Posts
    17
    Quote Originally Posted by Carultch View Post
    Corrected
    Right in the case of a grounding electrode conductor ran in a emt pipe, both ends of the pipe have to be bonded and the bond jumper can not be smaller than the gec. This has to do with induction and choking. Most of the current will choked .

  2. #12
    Join Date
    Jan 2017
    Location
    Waxahachie tx USA
    Posts
    4
    So would using a 3/4" bonding bushing be permissible in the panel alone or does it need to be at both ends of the conduit?

  3. #13
    Join Date
    Jan 2017
    Location
    Waxahachie tx USA
    Posts
    4
    Or can I increase the size of the lug on the 3/4" bushing to accommodate the 1/0 wire size?

  4. #14
    Join Date
    May 2013
    Location
    Massachusetts
    Posts
    2,064
    Quote Originally Posted by Nathan Hoggatt View Post
    So would using a 3/4" bonding bushing be permissible in the panel alone or does it need to be at both ends of the conduit?
    In general, it only needs to happen on one end, unless you are using it as the EGC.

    In the special case of the GEC, it needs to happen on both ends. It doesn't necessarily need to be a bonding bushing, as a bonding U-bolt or other external pipe bonding clamp/strap could also suffice.

  5. #15
    Join Date
    Jan 2017
    Location
    Waxahachie tx USA
    Posts
    4
    Thanks for the info guys.

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