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Thread: Electrical Exam Prep Help?

  1. #11
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    Quote Originally Posted by Dennis Alwon View Post
    300 x 125%= 380

    The question seems to imply that the breaker is rated 100% but if that is not the case then 400 kcm is correct. The wording, to me, is a bit off.
    Silly me. I thought 300 x 125% was 375.

    Sent from my XT1585 using Tapatalk

  2. #12
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    GoldDigger,

    Electric math doesn't seem to be the same as regular math.

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  3. #13
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    I understand the neutral sizing starts with 100% continuous load, but how would I know to look to 220.61 and then conclude an unbalanced load of 100A based on what it says?

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