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14-50 Wire Size

Discussion in 'North America' started by JWinter, Apr 23, 2018.

  1. eprosenx

    eprosenx Active Member

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    This is a great table that I reference all the time, but do understand that it is a dummed down version.

    The actual source of record is NEC Table 310.15(B)(16) for many of the use cases we talk about on this forum.

    It differs in important ways for 10 gauge conductors and smaller. There are other rules on the books that cause these fixed "15, 20, 30" amp ratings for the smaller gauge wires, but the real numbers are equal to or greater than what is in that table and you need those "raw" numbers in order to calculate proper derating like in this case with many current carrying conductors in a raceway.
     
  2. FlatSix911

    FlatSix911 Porsche 918 Hybrid

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    Good point ... I posted the simplified version, here is the complete NEC Table with the correction factors. :cool:

    http://www.barr-thorp.com/wp-content/uploads/2011/04/digest-176-nec-tables.pdf

    upload_2018-6-24_10-9-28.png
     
  3. eprosenx

    eprosenx Active Member

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    May 30, 2018
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    Beaverton, OR

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