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#59236 - 11/30/05 06:16 PM UL Listing  
LearJet9  Offline
Joined: Apr 2005
Posts: 197
Millis, MA USA
A cust is asking us to install some nice new fixtures. They are not UL listed. As long as they are installed according to the mfg instructions by licensed professionals what issues could the AHJ have? It is clearly a professional mass produced fixture. Don't know why there's no UL listing at this time.

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#59237 - 11/30/05 06:59 PM Re: UL Listing  
LK  Offline
Joined: Jan 2003
Posts: 1,429
New Jersey
Is there any other listing agency on the fixture?

#59238 - 11/30/05 08:45 PM Re: UL Listing  
Tiger  Offline
Joined: May 2005
Posts: 706
Crystal Lake, IL USA
As LK is implying, the fixture should be listed, and UL is not the only listing agency. I believe the correct terminology is "Third Party Listing".


#59239 - 11/30/05 08:51 PM Re: UL Listing  
Tom  Offline
Joined: Jan 2001
Posts: 1,044
Shinnston, WV USA
The AHJ relies on 3rd party testing, and listing, so that he doesn't have to perform any tests. If your AHJ approves these fixtures, then no problem, but I'd get the approval prior to installing the fixtures.

If you haven't done so lately, check out 110.2 and the definitions of listed, approved and labeled.

Few things are harder to put up with than the annoyance of a good example.

#59240 - 11/30/05 08:58 PM Re: UL Listing  
renosteinke  Offline
Cat Servant
Joined: Jan 2005
Posts: 5,316
Blue Collar Country
Last year I posted some pics here of some counterfeit "UL" fixtures I had found. There are a couple of things the fixtures simply must have- listing or not.

Wire connections must be inside some sort of box. The base of the fixture can be part of this box.
The fixture must be supported in such a manner that loads are not transferred to the wires.
If it has a metal shell, there must be a good bond (ground) connection to the building's wiring.

#59241 - 11/30/05 09:23 PM Re: UL Listing  
earlydean  Offline
Joined: Dec 2003
Posts: 751
Griswold, CT, USA
410.8(B) requires listed fixtures in clothes closets. 410.27(B)&(C) require listing for pendant assemblies if the conductors are smaller than #14 or in a cable assembly not twisted together and longer than 3 feet. 410.30(C)(1) requires listing for electric discharge fixtures connected by a cord. 410.31 requires listing for fixtures used as raceways. 410.33 requires a listing for fixtures that require a conductor temperature rating other than 90 degrees C. for conductors within 3 inches of the ballast. 410.76(B) requires listing for fixtures with ballasts when installed on combustible low density fiber-board. And, 410.80 requires listing for electric discharge fixtures with an open circuit voltage exceeding 1000 volts.

I cannot find any requirement for listing for the great majority of lighting fixtures we install. There are, however a great number of rules on the installation, marking and manufacturing of fixtures.

90.7 refers to a "qualified electrical testing laboratory" and "organizations properly equipped and qualified for experimental testing", also known as a nationally recognized testing laboratory, or 3rd party testing.

If your fixtures are not installed in the locations detailed above, listing is not required.


#59242 - 12/01/05 07:52 AM Re: UL Listing  
LearJet9  Offline
Joined: Apr 2005
Posts: 197
Millis, MA USA
Thanks Dean - I was under the belief that not all fixtures needed to be listed, as you noted. We are installing these fixtures on top of a pole (for lack of better description) as lane marker lights in a supermarket. Like the number boxes at the registers at your local Wal-Mart. They are not "listed" by anyone as far as we know.

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