An electrician and I have a difference of opinion on how these two sections apply to a particualar scenario. I would like to throw the question out to this forum for your opinions. The electrician and I are on good terms and neither of us will be offended if the opinion of this forum doesn't match our own.
Here is the scenario. Power for an individual luminaire is taken at a switch from a 20 amp circuit run with 12-2 NM. From the switch 14-2 NM is ran (within the wall of the building) maybe 6' to the individual luminaire.
The electrician believes that since the 14-2 serves no purpose other than to supply the single luminaire, it is covered by 240.5(B)(2) and is acceptable.
I believe that the 14-2 in the wall does not constitute fixture wires as covered by 240.5(B)(2). Could 210.19(A)(4) exception 1(a) or 1(c) be used to allow the 14-2 if it extended no more than 18" from the luminaire?
I see no definition for "fixture wires" in article 100. But I believe they are the conductors from the luminaire to the splices in the box where the luminaire is attached to the building. What is the proper difinition of a "fixture wire"?