I would like to run some additional wires (12/2) through a wall in my stairway for a few new circuits on my second floor. The problem that I have is that the wall is not a normal depth - 2x4 turned on its side (1.5" deep). I was thinking of running the wires through metal conduit to protect them according to NEC 2002 - 334.15(B) but I can't find info. regarding the number of wires allowed - NM wire type not listed Annex C. What is the best way to proceed?
NMB and Conduit restrictions
- Thread starter pj30
- Start date
- Status
ryan_618
Senior Member
- Location
- Salt Lake City, Utah
Re: NMB and Conduit restrictions
You must use the elliptical dimension of the cable and treat it as one conductor.
You must use the elliptical dimension of the cable and treat it as one conductor.
jimwalker
Senior Member
- Location
- TAMPA FLORIDA
Re: NMB and Conduit restrictions
Why can't you fish them in the 1 1/2 inch space ?
Why can't you fish them in the 1 1/2 inch space ?
Re: NMB and Conduit restrictions
Needed to track down my sources. According to NEC 300.4(D) the wires need to be 1.25" or more from the outer wall surface. Although an exception is made for concealed work in finished structures where you would have to fish the cables between access points, I have total access to the inside of the wall and figured that it was better to be safe than sorry.
Needed to track down my sources. According to NEC 300.4(D) the wires need to be 1.25" or more from the outer wall surface. Although an exception is made for concealed work in finished structures where you would have to fish the cables between access points, I have total access to the inside of the wall and figured that it was better to be safe than sorry.
- Location
- Windsor, CO NEC: 2017
- Occupation
- Hospital Master Electrician
Re: NMB and Conduit restrictions
Fish cables. No conduit. You're complicating the problem needlessly. Unless you're in...Chicago?
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