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250.102 (C) (1) Note 2

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    250.102 (C) (1) Note 2

    Could someone give me a quick example of how to apply Note #2 of table 250.102 (C) (1)?
    I am struggling to get my head around it.

    #2
    Originally posted by Andy1845c View Post
    Could someone give me a quick example of how to apply Note #2 of table 250.102 (C) (1)?
    I am struggling to get my head around it.
    Copper ungrounded conductors and an aluminum bonding jumper. You would have to size the bonding jumper on what size aluminum ungrounded would be needed.

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      #3
      For example, if you calculation came up with you needing a 350 kcmil copper bonding jumper and you wanted to use aluminum then according to T310.15(B)(16) you would need a 500 aluminum bonding jumper which has the same ampacity.
      Rob

      Moderator

      All responses based on the 2014 NEC unless otherwise noted

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        #4
        Thanks guys. I don't know why I was struggling so much with the wording. I was worried there would be a question on my journeymens exam about that. Thankfully there was not

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