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wiring 8AWG 240V in unfinished garage/basement, will finish someday

wiring 8AWG 240V in unfinished garage/basement, will finish someday


Old 06-11-17, 12:03 AM
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wiring 8AWG 240V in unfinished garage/basement, will finish someday

I've got a garage door into my basement. I'm planning on parking my Nissan Leaf in there, and also want to wire in a 240V charging plug. I read that wires that are in reach of an adult should be in conduit (but depended on inspector).

The car parking spot has to be built in using fire-code Sheetrock. I'll get to do that. But the breaker panel and unfinished basement will be in the rest of the basement. If I run conduit on the cement walls, or the ceiling beams, I may have to redo my work later when I finish out the basement.

Any suggestions on how I should install conduit to meet existing unfinished basement code, allowing for future finishing of the basement w/out ripping out my work?

The wire is going to be large, 8AWG 4 wire, hot-hot-neutral-ground THHN in the conduit (3/4in). If I can legally use 8/3 NM/B (also four wire, ground is bare) that would be terrific too.
Old 06-11-17, 05:32 AM
Tolyn Ironhand's Avatar
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Individual THHN wires are required to be in conduit in all cases, no matter the location.

For cables that are run on the surface of building (IE: surface of drywall or concrete block, the bottom of joists) will need to be protected. Methods of protection can be conduit, running boards, or drilled holes through framing members.

Since everything is unfinished, and you will not be running anything outside, I would recommend drilling holes through framing members (joists/studs) and run the NM-b cable to where you need it.

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