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Old 11-29-2012, 12:19 AM   #1
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Alternate wire sizing


If 1/0 THHN is rated at 150 amps @75 degrees and #4 THHN is rated at 85 amps. Can I runs 2 strands of #4 in place of 1 length of 1/0. Technically it would handle even more amps than 1/0. It's a short run.

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Old 11-29-2012, 04:17 AM   #2
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Alternate wire sizing


Not code compliant.

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Old 11-29-2012, 04:20 AM   #3
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Alternate wire sizing


Wires need to be larger than 1/0 before they can be paralleled.
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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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