Romex to PVC conduit

[Todd.Brock]

Guys- I’m sorry If this has been best to death, I just want to make sure I’m doing it correctly. I have a room that is finished next to the panel in the basement. I want to surface mount boxes and use conduit. Can I take NM-B from the panel to the first outlet in conduit and then switch to THHN? Or stick with NM-B for the other three boxes?
This is a simple 15 amp circuit for 4 receptacles. I get confused on when it’s ok, if ever, to put romex in conduit.

The plan would be to go from the panel, down the wall and then through the wall into surface mounted conduit.


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[pattenp]

It's okay to put romex in conduit. The fill area is based on the wide dimension of the cable. The downside of using romex is the difficulty of pulling the cable.

 

[wyliesdiesels]

NM-b is permitted for use in conduit INDOORS ONLY!!

 

[Terry D]

There is no violation for putting NM-b in conduit. But it can be a PITA at times to get it in there. I personally would use THWN if you can buy it by the foot in your area. We are only allowed here to put NM-b in conduit for sleeving purposes only, like a dryer or washer receptacle on a concrete wall in a unfinished basement.

 

[Todd.Brock]

If I could buy you all a beer I would. THANK YOU!


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[exranger06]

Can I take NM-B from the panel to the first outlet in conduit and then switch to THHN?

Yes, you can switch between THHN and NM-b no problem.

Or stick with NM-B for the other three boxes?

I don't see the point in doing that. I would just use THHN.

The plan would be to go from the panel, down the wall and then through the wall into surface mounted conduit.

Running NM-b down the surface of a concrete wall like that, at that height, means it's subject to physical damage (against code). An inspector may or may not agree with me, but I wouldn't feel comfortable doing it like that. I recommend just running a piece of conduit down from the panel and using an LB to go through the wall, and just use THHN for the whole circuit.

 

[e36jon]

Well, it turns out you CAN buy someone a beer online...