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Home Brew Forums > Home Brewing Beer > Electric Brewing > General Wiring Questions On A 240v 50amp Line
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Old 07-19-2012, 05:08 PM   #41
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Originally Posted by wyzazz View Post
The 80% "rule" is for sizing circuit breakers as far as I know.
Hope someone can correct me, but I think the 80% rule has something to do with the anticipated load from a given number of outlets on a circuit.
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Old 07-19-2012, 05:17 PM   #42
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Where did you get this chart? I thought the 80% rule is for sizing circuit breakers and is independent of the cable to be used. I've also been led to believe it's fine to run 55A through a cable that's rated for 55A. Please let me know if that's wrong.
Continuous loads (expected to operate continuoulsy for 3 hours or more) are subject to conductor derating (80% rule).

Non-continuous loads which I think applies to most of our electrical builds can be sized for 100% of the conductor capacity.
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Old 07-19-2012, 06:20 PM   #43
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Continuous loads (expected to operate continuoulsy for 3 hours or more) are subject to conductor derating (80% rule).

Non-continuous loads which I think applies to most of our electrical builds can be sized for 100% of the conductor capacity.
I appreciate the clarification.
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Old 07-20-2012, 04:04 PM   #44
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Very nice. Thanks, guys.

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