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Thread: #3 for 100 amp service in commercial building

  1. #1
    Join Date
    Feb 2004
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    174

    #3 for 100 amp service in commercial building

    Can #3 cu be used for 100 amp service in a commercial building?

  2. #2
    Join Date
    Jan 2009
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    3 Hr 2 Min from Winged Horses
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    Quote Originally Posted by hardworker View Post
    Can #3 cu be used for 100 amp service in a commercial building?
    In general, yes. Why do you think it may not?

    Any details we should know for a more complete answer?
    "Electricity is really just organized lightning." George Carlin


    Derek

  3. #3
    Join Date
    Jul 2003
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    New Jersey
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    Under normal conditions #3 THHN is a 100 amp conductor in T310.15(B)(16).
    Rob

    Moderator

    All responses based on the 2014 NEC unless otherwise noted

  4. #4
    Join Date
    Dec 2007
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    NE Nebraska
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    Unless ampacity adjustments are necessary#3 is a 100 amp conductor @ 75C.

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