366.7 - 11/20/05 08:02 PM
Hi guys i have a question for yall.
366.7(a) says when you have 30 or less current carring conductors the correction factors specified in 310.15(b)(2)(a) shall not apply.
(b)however a nonmetallic auxiliary gutter the derating factors specified in 310.15(b)(2)(a) shall be applicable.
Is this because one is plastic and one is metal. one has a chance to melt and one doesnt? any help would be great. thanks
366.7(a) says when you have 30 or less current carring conductors the correction factors specified in 310.15(b)(2)(a) shall not apply.
(b)however a nonmetallic auxiliary gutter the derating factors specified in 310.15(b)(2)(a) shall be applicable.
Is this because one is plastic and one is metal. one has a chance to melt and one doesnt? any help would be great. thanks