underground wiring


Old 05-01-02, 06:21 PM
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underground wiring

Just wondering what size wire to use if I were to put power out 150ft. I would need at least 40-50 amps at the end of the run. could use two or more runs, 20 amps minimum per run.
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Old 05-01-02, 07:49 PM
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The NEC does not allow you to parallel conductors smaller than a 2 awg conductor.

40 amp = 8 awg copper or 6 awg aluminum

50 amp = 6 awg copper or 4 awg aluminum

Good Luck


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