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NM (Romex) #88484
06/10/04 05:31 PM
06/10/04 05:31 PM
skingusmc  Offline OP
Joined: May 2004
Posts: 116
Simi Valley, CA USA
This is the situation:

HO wants an additional outside montion sensor light installed.

The current circuit has 2 outlets (one on the ceiling for the garage door opener and one on the wall [not GFCI, told HO about this requirement] and a dual bulb motion sensor light (has the newer fluorescent energy saver bulbs). This is a 15A circuit.

I want to tie into the current montion sensor light fixture and run conduit approx. 18' to the other side of garage door frame to the new motion sensor light.

The HO has some Romex (NM-B 14-2) that he wants me to run through the conduit.

Is this ok? I have never considered running NM through conduit, looked through the 2002 NEC Handbook, but didn't see anything about this situation.

Thoughts, comments?


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Re: NM (Romex) #88485
06/10/04 08:32 PM
06/10/04 08:32 PM
George  Offline
Joined: Feb 2002
Posts: 375
18' of wire seems a small issue for taking so much time to decide.

Yes, you can. I strip off the sheath for short runs. 40% fill kicks the size of conduit up if you leave the sheath on.

Re: NM (Romex) #88486
06/10/04 09:30 PM
06/10/04 09:30 PM
caselec  Offline
Joined: Apr 2002
Posts: 558
San Jose, CA
It sounds like this conduit is going to be on the exterior, if so this would be a wet or damp location. Type NM cable is only to be used in dry locations. Also the conductors in type NM cable are not marked with their type and not approved for individual use in a raceway.


Curt Swartz
Re: NM (Romex) #88487
06/11/04 11:22 AM
06/11/04 11:22 AM
skingusmc  Offline OP
Joined: May 2004
Posts: 116
Simi Valley, CA USA
Thanks for the replies.

I was (and will) going to run 14 guage THHN and be done with it.

Stripping down the NM is not a good use of my time (grin), and will not happen by me.

The HO just wanted to save an extra couple $$.


Re: NM (Romex) #88488
06/11/04 12:55 PM
06/11/04 12:55 PM
earlydean  Offline
Joined: Dec 2003
Posts: 751
Griswold, CT, USA
Outside is a wet location, the wire should be THWN. Most building wire has multiple ratings, so this may not be an issue.

Re: NM (Romex) #88489
06/14/04 06:08 PM
06/14/04 06:08 PM
DougW  Offline
Joined: Jun 2003
Posts: 1,143
North Chicago, IL
Unless it's needed for physical protection... why bother?

Run THHN/THWN and be done with it.


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