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NM cable exposed

McShan

McShan

Bronze Member
Joined
Sep 27, 2011
Messages
74
Location
Louisiana
Can NM cable be run exposed in a detached building? We use the 2011 NEC it seems to me that 334.15 would require it to protected from physical damage. It is a wood frames building metal siding, basically a pole barn used as a detached building in a residential area.
 
We allow it in unfinished framed walls, and above/in framed ceiling/roofs. Nailplates as required.
 
there are no framed walls just 2X6's bolted to 6X6's so the wire is on the purlin for lack of a better word, I'm thinking its unprotected and and should fall under 334.15 but I'm not sure.
 
Unless 334.15 was changed from 2008-2011, fastening NM to the side of framing, to running boards, or through holes bored in the framing can be considered "protected" from damage.
 
IMO, it may be run exposed but it must follow the construction but it must be a building that is associated with a dwelling and not a commercial building- 334.10 The protection from damage is always an authority having jurisdiction call. In general if you follow the framing they usually allow it around here.
 
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