flourescent lights hung from jack chain . can you use mc or the new type ac solid

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flourescent lights hung from jack chain . can you use mc or the new type ac

flourescent lights hung from jack chain . can you use mc or the new type ac

i meant to say solid wire or do you have to use stranded . this is in a strip mall ,back storage area of a pc richards store
 
Might be an AHJ call
Code leads one to say stranded:
410.56 Protection of Conductors and Insulation.
(E) Stranding. Stranded conductors shall be used for wiring on luminaire chains and on other movable or flexible parts.
 
augie47 said:
Might be an AHJ call
Code leads one to say stranded:
410.56 Protection of Conductors and Insulation.
(E) Stranding. Stranded conductors shall be used for wiring on luminaire chains and on other movable or flexible parts.
Click to expand...

One could argue that the above referenced section applies to insulated conductors like those installed on a chandelier and not within a cable.
 
one certainly could and I have no documentation as to intent.
 
This may just be another example of how hard it is to write code.

It also shows how sometimes in order to keep the NEC as short as is possible, there may be need for more wording to be specific enough to convey the actual meaning of the code section.
 
Today I was looking at a job in the rear of a store building, the doors were open, the wind was swinging the lights back and forth. This movement could also happen on threaded rods but probally not as bad. Seems as stranded would be the better choice.
 
I don't see anything in 410.56 refering to 'branch circuit' conductors. Part VI Wiring 'of'

Luminaires, that contains 410.56, does not mention the 'branch circuit' conductors unless

it is specific to them, such as 410.64 and .65 as an example.

410.117(B) , Circuit Conductors, Branch circuit conductors that have an insulation suitible

for the temperature encountered 'shall be permitted' to terminate in the luminare.

IMO. 410.56 is for wiring with-in the fixture, and 410.117 is for wiring to the fixture.
 
I have seen solid wire used for many years (AC) without any problems as the branch circuit wiring to fixtures hung from jack chain.

I have used it myself and never had a problem with the wiring or with an inspection.

I have never seen stranded AC or MC around my areas at all.
 
benaround said:
I don't see anything in 410.56 refering to 'branch circuit' conductors. Part VI Wiring 'of'

Luminaires, that contains 410.56, does not mention the 'branch circuit' conductors unless

it is specific to them, such as 410.64 and .65 as an example.

410.117(B) , Circuit Conductors, Branch circuit conductors that have an insulation suitible

for the temperature encountered 'shall be permitted' to terminate in the luminare.

IMO. 410.56 is for wiring with-in the fixture, and 410.117 is for wiring to the fixture.
Click to expand...

With that in mind, what is your opinion on 410.62 ??
It's under section VI also, and it has specific language about the cord feeding the fixture. If an electric discharge fixture is wired by a "field installed" cord, is a plug required ?? I've always said "yes" based on 410.62, but if we restrict section VI to "wiring on or within", the we have a situation.
 
Seems to me that you could also use SO cord as permitted in 400.7 (A)(2) and that it could be hardwired since it doesnt fall in the parameters to be cord and plug although anytime I've seen luminares using flexible cord it is always cord and plug.
 
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