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NM B wires in between stud and insulation #76980
04/09/01 11:07 AM
04/09/01 11:07 AM
A
arthur  Offline OP
Junior Member
Joined: Mar 2001
Posts: 3
maple grove, mn, USA
Hi all,

I have to install outlets in the basement, the studs are 1.5" thick and the insulation is 1.5", the drywall is .5" ,this gives me at least 2" clearance from the concrete wall. If I put the NM B wires in between stud and insulation will this be up to CODE ? I'm thinking that that any 1.25" screw or nail can't reach the wire so this will be OK. I just don't want to remove the insulation and use conduit (?).

Thanks,

Arthur

2017 / 2014 NEC & Related Books and Study Guides
Re: NM B wires in between stud and insulation #76981
04/09/01 03:28 PM
04/09/01 03:28 PM
M
Mike  Offline
Member
Joined: Feb 2001
Posts: 62
You can notch the front side of the studs and lay the romex in there and install metal nail plates over the romex. Keep the romex no less than 1 1/4" from the front of the studs for the vertical run(s) of romex to the outlet boxes (running parallel to the studs).

Re: NM B wires in between stud and insulation #76982
04/09/01 03:39 PM
04/09/01 03:39 PM
M
Mike  Offline
Member
Joined: Feb 2001
Posts: 62
Correction; steel nail plate a minimum of 1/16" thick.

Re: NM B wires in between stud and insulation #76983
04/09/01 10:30 PM
04/09/01 10:30 PM
Bill Addiss  Offline
Member
Joined: Oct 2000
Posts: 3,903
NY, USA
Arthur,

I'm having a hard time picturing what you are talking about. Are these studs 'on the Flat' against the concrete wall? What type of insulation? I'm trying to figure out what you mean by going between the stud and insulation.

Quote
the studs are 1.5" thick and the insulation is 1.5", the drywall is .5" ,this gives me at least 2" clearance from the concrete wall. If I put the NM B wires in between stud and insulation will this be up to CODE ?


Bill

Re: NM B wires in between stud and insulation #76984
04/10/01 08:23 AM
04/10/01 08:23 AM
A
arthur  Offline OP
Junior Member
Joined: Mar 2001
Posts: 3
maple grove, mn, USA
The studs and the rigid insulation were already in placed by the builder. Shall I say 'can I put the wires in the gap between the stud and insulation' ? or simply at the side of the stud adjacent to the insulation ?

Thanks,

Arthur

Quote
Originally posted by Bill Addiss:
Arthur,

I'm having a hard time picturing what you are talking about. Are these studs 'on the Flat' against the concrete wall? What type of insulation? I'm trying to figure out what you mean by going between the stud and insulation.

Bill

Re: NM B wires in between stud and insulation #76985
04/10/01 09:58 PM
04/10/01 09:58 PM
Bill Addiss  Offline
Member
Joined: Oct 2000
Posts: 3,903
NY, USA
Arthur,

You should be Ok if you can figure some way of securing the cable back there (all the way).

Make sure that you are using boxes of the proper cu. in. capacity.

Bill


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