110C Wiring?

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jimb

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Hello to all. I ran across something today that has me scratching my head and I'm hoping that someone here can help me out.

Was working to finish up a house wiring job today and my buddy went to the supply house to pick up some light fixtures for the attic and crawlspace - nothing fancy, just a single bulb holder with a globe. Didn't get around to installing them today so as I was storing them away I noticed the labeling on the side of the box that read something like this (if memory serves me):

USE ONLY SUPPLY CONDUCTORS
RATED AT 110 C
NOT FOR USE IN DWELLINGS

I opened one of the boxes and sure enough, the fixture itself had the same markings on the base. These are fairly inexpensive fixtures (less than $10) with a plastic base and screw on glass globe. They are made by Superior Lighting and I found them on the net here. The ones I have are the AO-159.

I plan to return them but I'm wondering, just where these lights are meant to be used. Their website suggests detached garages, carports, and barns as well as other non-dwelling locations but how many of these locations use wire rated at 110C?

For what it's worth, they also make a AO-159-90 which has fiberglass insulation in the base and is suitable for 90C conductors . . . but it is not listed for use in dwelling units either. I'm going to mention this tomorrow to the guy at the parts house but I'm wondering just how many of these things have been installed around here already :confused:

Has anyone seen this type of light installed, and if so, what types of locations and what types of conductors?

Thanks,

Jim
 
Re: 110C Wiring?

Beats me. I have never seen this before. I would'nt use them. I am curious about that UL# :confused: .
 
Re: 110C Wiring?

I have used something similar by RAB in a commercial kitchen. They must have been the 90*c type since the wiring was conduit & THHN.
I do remember them saying "Not for use in dwellings".
 
Re: 110C Wiring?

Kenny, I'm curious about the UL number as well. Maybe someone who knows more about such stuff could research it. I will say this however, the box and the fixture itself are plainly labeled with the restrictions . . . it's not as if they tried to conceal it.

Peter, I've used the RAB lights as well. The 'non-dwelling' stipulation didn't surprise me as much as the temperature rating for the supply conductors. I'm probably missing something, but this just doesn't seem like a viable product, at least for the suggested usages in barns, carports, sheds, etc. as mentioned on the manufacturer's website. Again, I could be wrong, but I've got a feeling that in most cases these lights are installed w/ 90C supply conductors.

As far as the supply house is concerned, those guys aren't electricians and it's not fair to expect them to catch all things like this. It's ultimately up to the electrician to ensure that what he installs is proper and safe. I'm pretty sure that after I call them tomorrow, they will order something different for when someone asks for a plain "attic light".

Jim
 
Re: 110C Wiring?

Researching this is simple now that UL has made their Online Certification Directory available.

You already found the UL number (E22373 from the page you referenced) so go to this page and follow it to the ?UL File Number Page? and enter the number.

It will give you the Category Code (IEZR) as well as the listing for ?Robinson Enterprises."

Go back to the previous page and follow it to the ?UL Category Code/Guide Information? page and enter the ?IEZR.? I recommend checking the ?Display Guide Information Only? box or you will get 95 pages of listings. Read the ?IEZR.GuideInfo? for other related potential restrictions. I did note "Not for use in dwellings" wasn't one of the specific markings mentioned, so it probably is an "evaluated for use" marking under related Category Code AALZ. (Actually almost everything is evaluated under AALZ)

The 110C marking probably simply means you need to add ?Fixture Wire? (Art 402) pigtails yourself.
 
Re: 110C Wiring?

Originally posted by rbalex:
[QBThe 110C marking probably simply means you need to add “Fixture Wire” (Art 402) pigtails yourself. [/QB]
Click to expand...
I think it might have to do with the operating temperature of the fixture. Meaning that 90degree or less insulation would break down over time.
Check here: http://www.ul.com/regulators/index_lib.html
for UL's luminaire marking guide.
Check out notes #6 and #37 in the guide. They lead me to my conclusion above.
 
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