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Thread: Transformer grounding

  1. #11
    Join Date
    Feb 2003
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    Illinois
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    Quote Originally Posted by infinity View Post
    If it's not an electrode then no sense connecting to it. Also under the 2017 you need a terminal bar connected to the case of the XFMR.
    What about the requirement in 250.104(D)?
    Don, Illinois
    (All code citations are 2017 unless otherwise noted)

  2. #12
    Join Date
    Jul 2003
    Location
    New Jersey
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    26,030
    Quote Originally Posted by don_resqcapt19 View Post
    What about the requirement in 250.104(D)?
    Wouldn't that steel that isn't an electrode already be bonded to the building GES? If so 250.104(D)(2)Exception would already have that covered.
    Rob

    Moderator

    All responses based on the 2014 NEC unless otherwise noted

  3. #13
    Join Date
    Feb 2003
    Location
    Illinois
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    Quote Originally Posted by infinity View Post
    Wouldn't that steel that isn't an electrode already be bonded to the building GES? If so 250.104(D)(2)Exception would already have that covered.
    The way I read it, the SDS requires its own bond to the building steel.
    Don, Illinois
    (All code citations are 2017 unless otherwise noted)

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