Article 410-28 (e)

[r_merc]

New Jurisdiction - new rules. Or have I just been doing it wrong for years?


Here is the situation. I have Flourescent fixtures hanging from Jack Chain with MC cable feeding them. The Inspector quoted this article. Seems to me that this section applies to wiring integral to the fixture. Manufacturer installed and then field modified as in hanging a chandelier where you have condutors in the open passing through metal(b), stems(c), and Chain (e).

Article 410-14(a) specifically mentions MC as a wiring method for a fixture not mounted to a box.

 

[caj1962]

Re: Article 410-28 (e)

IMO the only thing that I see in thr section you quoted that the inspector could possibly have a problem with is if the MC cable was a solid conductor. If this is the case yes he is correct , but like you I have done this same install for years.

 

[iwire]

Re: Article 410-28 (e)

r_merc, I agree with you, take a look at the article you mention, 410.14(A)

410.14 Connection of Electric-Discharge Luminaires (Lighting Fixtures).
(A) Independent of the Outlet Box. Electric-discharge luminaires (lighting fixtures) supported independently of the outlet box shall be connected to the branch circuit through metal raceway, nonmetallic raceway, Type MC cable, Type AC cable, Type MI cable, nonmetallic sheathed cable, or by flexible cord as permitted in 410.30(B) or (C).

One thing that jumps out at me is this article mentions type MI cable can be used.

If you look at 322.104

332.104 Conductors.
Type MI cable conductors shall be of solid copper, nickel, or nickel-coated copper with a resistance corresponding to standard AWG and kcmil sizes.

you see that type MI only comes in solid conductors.

I believe you are correct that the article the inspector quoted does not apply to this installation.

 

[r_merc]

Re: Article 410-28 (e)

I appreciate the responses. I have not yet personnally met this inspector and plan on meeting with him. Sounds like he is not going to want to discuss with an out of town contractor code disagreements. I will hang these fixtures with Aircraft Cable unless someone has a code issue with that install that I am not aware of.
Rick

 

[hurk27]

Re: Article 410-28 (e)

I noticed that 410.14 doesn't list FMC?
I wonder why as this is one of the most popular way's of wiring them. and we even buy fixture's from the factory pre-whiped with 3/8" FMC?

I'm cornfused

 

[curt swartz]

Re: Article 410-28 (e)

Wayne,

410.14 Connection of Electric-Discharge Luminaires (Lighting Fixtures).
(A) Independent of the Outlet Box. Electric-discharge luminaires (lighting fixtures) supported independently of the outlet box shall be connected to the branch circuit through metal raceway, nonmetallic raceway, Type MC cable, Type AC cable, Type MI cable, nonmetallic sheathed cable, or by flexible cord as permitted in 410.30(B) or (C).

FMC (Article 348) is a metal raceway.