wireway

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vanwalker

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am i correct? that a 12"x12"x4'wireway filled with MORE than 30 current carrying conductors, that article 310.15(b)(2)ex.5. would have nothing to do with derating of these wires.THANKS GEO
 
Re: wireway

Originally posted by vanwalker:
am i correct? that a 12"x12"x4'wireway filled with MORE than 30 current carrying conductors, that article 310.15(b)(2)ex.5. would have nothing to do with derating of these wires.THANKS GEO
Vanwalker,


310.15(B)(2)*Exception(5)

*Does not relieve you from the adjustment factors requirements of 376.22, of more than 30 currect-carrying conductors contained within a wireway.
 
Re: wireway

376.22 Number of Conductors:
Quote:-The derating factors in 310.15(B)(2)(a)shall apply..

378.22 Number of Conductors:
Quote:The derating factors specifided in 310.15(B)(2)(a)shall be applicable..

*Exception#5 and:
A 60 percent adjustment factor,will not superceed requirements of table 310.15(B)(2)(a)..As I see it in installation of the circuit branch conductors,installed in wireway(s)and in the intention of your posting..
 
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