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I would like to know if it's allowed to run 10/3 Romex in 3/4 inch PVC pipe for 15 ft. outside under the floor of an open porch to be wired to a 30A power outlet for a portable 6500 watt generator.

Niall C.
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Tony
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1 Answers1

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No. Nonmetallic sheathed cable is not allowed in wet locations. NEC considers outdoor conduit a wet location.

You'll have to use THWN conductors, or other conductors/cables rated for wet locations.

If you use THWN conductors, you'll be able to fit 7 conductors through 3/4" Schedule 80 PVC (Table C.9), or 9 conductors through 3/4" Schedule 40 PVC (Table C.10).

Community
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Tester101
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  • 10/3 UF-B is [$2 a foot at the orange borg](http://www.homedepot.com/p/Southwire-10-3-UF-B-W-G-By-the-Foot-13059199/204632775?N=5yc1vZc57bZ1z0zueaZ1z10mzf)... – ThreePhaseEel Mar 26 '15 at 11:50