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Old 05-26-2011, 08:40 PM   #1
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How much slack??


I will be wiring new three new dedicated circuits: 30, 40, and 50 amp for new kitchen and laundry appliances. I have measured the distance from the load center to respective junction boxes. How much extra cable should I purchase to avoid running short? Given that the heavy gauge cable runs $2-3 per foot I don't want to have too much waste when the job is done. TIA!

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Old 05-26-2011, 08:57 PM   #2
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How much slack??


I won't give you a hard figure, but something to think about. Five inches too short is much worse than 5' too long. Leave yourself a couple of extra feet as a minimum.

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Answers based on the National Electrical Code. Local amendments may apply. Check with your local building officials.
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Old 05-26-2011, 10:43 PM   #3
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How much slack??


Thanks Jim -- I totally agree. I was figuring I would buy an extra 4' for each run, so it sounds like I am in the right ballpark!
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