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Posted by RBM on May 22, 2008, 7:06 am
>I built a leanto on the front of my pole barn. It's 3 sided, so the
> horses can get shelter when the weather is nasty. At the last minute
> I decided to add a light. That required getting the cable (NM Romex)
> thru the wall from inside the barn. This left me two options.
> 1. Drill a home thru the top 2x6, and thru the pole barn steel siding.
> 2. Run the cable thru one of the ribs on the underside of the roof
> steel.
>
> I chose the second option for two reasons. First, it was less work,
> since there is a rib every 10 inches, so there were plenty to choose
> from. Secondly, drilling thru steel siding is going to leave a sharp
> edge on the steel where the cable runs, which could eventually
> puncture the cable.
>
> As far as safety, I think I chose the right way, but is it legal
> acording to the NEC?
>
> (I'm not too worried about this, it wont be inspected, I'm just
> curious).
>
> Thanks
Agricultural buildings require wiring equipment to keep dust and moisture
out. UF cable or NMC is OK but NM is not permitted
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