Can You Run Southwire Romex NM-B Cable in Conduit Without Sheath?

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[paulashley]

I bought you a cup of coffee! ☕. enjoy!

[JeffBanfield-tv]

Type NM cable is permitted only in dry locations. The outside J-box must be raintight, not rainproof, and the conductors inside the conduit to the shed must be rated for wet locations, such as THWN, THHW, or THWN-2. MTW is approved only for machine tool connections and THHN is rated for dry and damp locations only (Table 310.4). Most single conductors now have multiple ratings, such as all three he mentions in the video so you can keep one reel in your truck for many applications.

[brianjmortensen]

Excellent explanation and information. Thank you for explaining in such detail why unsheathed Romex in conduit is not acceptable. Liked & subscribed as requested !

[leestokes]

Helpful information. I’m contemplating running wire from my outdoor service entrance to a free-standing shed, a straight-line distance of maybe 20’ . My preference is buried conduit rather than direct burial of Cale rated for such. 30-60 amps 120 volts is still a fair am of current for me to feel comfortable with direct burial.

[joseaguirre]

Thank you for your informative videos. In your example, wouldn't it be better to do the transition by installing the J-box indoors to insure that the NM romex never sees the outdoors?

[JohnThomas-lqqp]

Here's a curve ball: At an IAEI continuing education class the instructor told us that it's never legal to run Type MM ( Yea Romex ) outdoors even to feed a wall mounted luminare. Told us to only use UF cable. Reason being outdoors is considered at least a damp location & type NM cable was never approved for damp locations. Have received the AHJ approval in house basements to install maybe 3' of Romex thru a piece of 1/2" EMT that's secured to a painted 1 by 4' wood board to a 1900 box for one or two duplex receptacles. Here's a question why are you not allowed to say install a Romex connector into a 1/2" heavy wall coupling to make the transition from Romex to EMT ? And yes I have done that hundreds of times over the years and yes I know they make a one piece transition approved fitting but it's just more things to stock in an overloaded work van .

[mancave]

Ok Gurus,

DIY with simple scenario, need advice.

3 circuits, 15A max each
24ft run (panel to receptacle)
Dry location, under a carport, 8 ft above ground

Can 12/2 Romex be used in 1 1/2 PVC conduit?

[Phil-D]

The romex standard needs to be adjusted so that it is able to be run in conduit. Would fix many issuss

[jaydee]

I can see your point for wet locations. Since inside conduit is not a wet location, can I run romex inside a gray pvc conduit along my garage ceiling? And if I drill holes in the conduit for heat dissapation, does it cease to be "conduit" and OK for protecting the romex? Suppose I do this inside the ceiling?

[scotttribout]

Here's my issue. NM ROMEX is usually SOLID WIRE. Regardless of the sheeting of the individual wires it's gonna be hard to Even with a replacement insulated ground wire.

[meeponinthbit]

Haven't watched the video yet, but if i recall, didn't this already get clarified in a previous video? If the insulation isn't marked, then it isn't allowed.... (Mostly just posting this to feed the algorithm)

[davidszakacs]

I'm getting ready to run a 240 volt 6/3 cable to a hot tub which will be on a deck. I want to use flexible Liquidtight one-inch conduit and fittings from just inside the basement, through the joist box, about 5 feet up to a spa pack w/GFCI then down under the deck to the spa, (about 6-7 feet). Is this allowable and do I have to keep the sheathing on the cable? Also, would one-inch diameter conduit be enough? Thanks. Enjoying your videos.

[spacecoastkid]

I need install a 50amp rv plug on the end of my house. My breaker panel is in the garage on the opposite end of the house. Would it be legal to run 6/3 Romex NM-B from the panel, into the attic, through the attic to the end of the house, then come out of the wall and on the exterior run inside comduit? It would terminate inside the 50amp receptacle panel at about 30" above ground? OR do I need a junction at the exterior and then change to the THHN or W wire and still run in conduit? I am not getting this inspected, so if all Romex is illegal, am I honestly ever going to have an issue as long as. the joints are glued properly?

[waylandjennings]

Does this apply exclusively to Southwire brand cable?

[ryanb]

So if you have something like a generator inlet box mounted on stucco, are you able to directly run 8/3 (or 6/3) romex from the main panel to the inlet box without using a jbox since it’s mounted directly to the house?

[williamrafferty]

You’re showing THHN in a damp location

[charlesm]

Starts with a full minute with no useful information and then not applicable to my situation.