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Listed or not Listed #91043
12/23/04 04:51 PM
12/23/04 04:51 PM
G
George Little  Offline OP
Member
Joined: Jan 2004
Posts: 1,489
Michigan USA
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"?


George Little
2017 / 2014 NEC & Related Books and Study Guides
Re: Listed or not Listed #91044
12/23/04 05:11 PM
12/23/04 05:11 PM
I
iwire  Offline
Moderator
Joined: Jan 2003
Posts: 4,391
North Attleboro, MA USA
I do all the time, unistrut and it's hardware. [Linked Image] But I doubt that is what you mean

Luminaire, panel etc, no I doubt that would be acceptable around here.

We have had custom fixtures made but they where made at a shop that can UL list the fixture.

I don't believe the pad mount transformers we install are UL listed.

George you always have interesting questions. [Linked Image]

Bob


Bob Badger
Construction & Maintenance Electrician
Massachusetts
Re: Listed or not Listed #91045
12/23/04 06:40 PM
12/23/04 06:40 PM
S
shortcircuit  Offline
Member
Joined: Jun 2004
Posts: 608
massachusetts
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.

shortcircuit

Re: Listed or not Listed #91046
12/23/04 10:36 PM
12/23/04 10:36 PM
G
gfretwell  Online Content

Member
Joined: Jul 2004
Posts: 9,166
Estero,Fl,usa
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.


Greg Fretwell
Re: Listed or not Listed #91047
12/23/04 11:06 PM
12/23/04 11:06 PM
G
George Little  Offline OP
Member
Joined: Jan 2004
Posts: 1,489
Michigan USA
Good thing I behaved myself during the Jubilee, don't need the brothers from the bikini state mad at me. Have a nice Holiday if you haven't already and lets have a good and healthy next year.


George Little
Re: Listed or not Listed #91048
12/23/04 11:32 PM
12/23/04 11:32 PM
G
gfretwell  Online Content

Member
Joined: Jul 2004
Posts: 9,166
Estero,Fl,usa
Actually I think this is really the NEC holiday when the code goes on vacation. We are safe all year, then we open up that box of nasty lights and put good sense on hold.
In GFCI we trust ;-)

[This message has been edited by gfretwell (edited 12-23-2004).]


Greg Fretwell
Re: Listed or not Listed #91049
12/24/04 07:59 AM
12/24/04 07:59 AM
R
Roger  Offline
Member
Joined: May 2002
Posts: 1,716
N.C.
George,
Quote
The code does not require anything to be UL Listed.
actually it does, for example look at 35x.6 through 362.6 conduit articles.

I agree with the jest of your post though and think many inspectors now use listings as a crutch.

I have no problem say with rewiring (rebuilding) antique (unlisted) fixtures for use.

Happy and safe Holiday wishes!

Roger

[This message has been edited by Roger (edited 12-24-2004).]

Re: Listed or not Listed #91050
12/24/04 09:55 AM
12/24/04 09:55 AM
G
George Little  Offline OP
Member
Joined: Jan 2004
Posts: 1,489
Michigan USA
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.


George Little
Re: Listed or not Listed #91051
12/24/04 10:58 AM
12/24/04 10:58 AM
G
gfretwell  Online Content

Member
Joined: Jul 2004
Posts: 9,166
Estero,Fl,usa
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.


Greg Fretwell
Re: Listed or not Listed #91052
12/24/04 05:25 PM
12/24/04 05:25 PM
R
russ m  Offline
Member
Joined: Feb 2003
Posts: 169
Burbank,IL,USA
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.

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