The code does not require anything to be UL Listed. There are several instances where the code ask for something to be listed, meaning looked at by a recognized testing organization and having it meet a Standard usually established by UL. My question is: would you install a piece of equipment, wiring method, luminaire or anything else that was not "Listed"?
90.4 Gives the authority having jurisdiction the responsiblity for deciding whether to approve the use of equipment and materials used.(listed or not)
Yes, I would install equipment and materials that are not listed...as long as I feel it is safe. If there is a question about equipment or materials I may use,I will ask the Inspector for his approval.
Re: Listed or not Listed#91046 12/23/0410:36 PM12/23/0410:36 PM
If you ask this question on the Fla IAEI BB they will come down your throat. These guys are more adament than I am about listing. They are the ones who beat me up for thinking the screw lug on the side of a pool ladder cup was OK if properly made up.
Re: Listed or not Listed#91047 12/23/0411:06 PM12/23/0411:06 PM
Roger- Look again. Articles you referenced only require that the products be "Listed" not UL Listed. There are possibilities, UL, ETL, Factory Mutual, CSA and MET to mention a few. There are no requirements that anything be UL Listed And another thing that bothers me is the fact that Article 500 quite often says that a product or piece of equipment shall be "Approved" and it makes no reference to a need for any Listing. Puts the onus on the Inspector to review a product for approval or acceptability without knowing how it will perform.
Re: Listed or not Listed#91051 12/24/0410:58 AM12/24/0410:58 AM
I try to be careful not to say "U/L" listed, simply listed. Listing indeed is a "crutch" or a "tool" depending on who you talk to. It establishes a minimum stanndard of performance. In an industry that is trying desperately to establish some standards I welcome it. We still have 90-4 to "approve" unlisted items but I think they should substantially meet the same standard as a listed item. Electrical contractors should appreciate a uniform electrical standard so they are not building a different installation depending on city/county lines and what Bubba the inspector is feeling like today.
Re: Listed or not Listed#91052 12/24/0405:25 PM12/24/0405:25 PM
I think even those that know listings are done by more NRTLs than UL seem to have say UL, to many so they understand what we're talking about. Next time just for fun I'm going to ask if somthing is MET listed, or even more fun NRTL listed.