Nm in fire ''barrier" walls

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B-mack

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Please enlighten me, is it permissible to run Nm to devices in fire barrier walls.
NEC article 334 doesn't say it can or can't be used, article 300.21 addresses the sealing of penetrations. IBC article 712 deals with box installation and penetration sealing.
Have I covered my bases, or what have i missed.
 
Yes it can, it can even be run through rated walls and barriers if a proper fire/smoke stop assembly is used.

Roger
 
Welcome to the forum
As Roger said yes it can. Just be carefull as to if you have any boxes on both sides as you need a stud between them. This is a fire code issue not really NEC.
 
Jim W in Tampa said:
Welcome to the forum
As Roger said yes it can. Just be carefull as to if you have any boxes on both sides as you need a stud between them. This is a fire code issue not really NEC.
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It is also in the building code, FWIW.:)
 
Type of occupancy?

Type of occupancy?

The occupancy will be an approximatively 10,000 sq.ft. Meditation Pagoda, meeting all the code requirements for the use of NM cable.
This is the first time in over 20 years I've had a "Fire Barrier Wall" in a structure spect for the use of romex.

Thanks all for the feed back
 
B-mack said:
The occupancy will be an approximatively 10,000 sq.ft. Meditation Pagoda, meeting all the code requirements for the use of NM cable.
This is the first time in over 20 years I've had a "Fire Barrier Wall" in a structure spect for the use of romex.

Thanks all for the feed back
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Since I have no idea what a "Meditation Pagoda" is I will mention that if this is deemed an assembly occupancy then NM cable would not be allowed in the fire barrier wall. Check out 518.4(A).

Chris
 
I would agree that it's probably an "A" occupancy. Remember though, that an assembly in the buiding code is 50 or more and in the electrical code it's 100 or more so just because it's classified as an "A" doesn't mean they can't use NMC.
 
cowboyjwc said:
I would agree that it's probably an "A" occupancy. Remember though, that an assembly in the buiding code is 50 or more and in the electrical code it's 100 or more so just because it's classified as an "A" doesn't mean they can't use NMC.
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Yes, but at 10,000 square feet and an assembly occupancy the occupant load will most likely be more than 100.;):)

Chris
 
I wasn't involved with the engineering or design of this building. Those that were said that because of the nature and the uniqueness of this building it took over 3 years to get the plans approved by the inspecting jurisdiction. The permit department scrutinized everything to such a point that the I think person submitting the plans for approval was required to have a colonoscopy.
 
Sounds kind of like doing government plans. Have had issues where they only look at a plan until they find one thing, and then kick it back, instead of taking the logical route and reviewing the entire plan. So you get stuck resubmitting several times.
 
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