NMB (romex) in emt or wire mold

[Electrical Student]

The conductors inside the NM cable are not labeled thhn thwn or anything at all. Wouldn't putting a junction box on the conduit and switching from nm to thhn satisfy?

 

[Dennis Alwon]

Actually it is a listed product so it has to be used as listed per 110.3(B).

Now that said, I use EMT for things that it is not listed for either so I am in no position to throw stones. :grin:

How is this different then taking some metal and making a protection around the wire. Obviously if I took the back out and used thhn inside that would be a violation but I don't see how 110.3 applies in this situation.

Can I take a stick of empty rigid pipe and use it to hang pipe from?