Re: [RE-wrenches] Push-in Wire Connectors

[Kent Osterberg]

Glen, It's a little interesting to contrast: 300.5 Underground Installations. Shall be considered wet locations. Conductors shall be listed for wet locations. Connections shall be approved for wet locations. Where the code is quite direct about the requirement for connections. I'm paraphrasing the code text, but you have a copy to refer to. With: 300.9 Raceways in Wet Locations Abovegrade. The interior of these raceways shall be considered to be a wet location. Conductors shall comply with 310.10(C) which says they have to be a type listed for wet locations. Which doesn't directly say anything about connectors. A NEMA 4 junction box on the roof is part of the raceway in a wet location above grade so its interior is a wet location. You cannot consider it a dry location. Inspectors here have required splices/connectors rated for wet locations. That doesn't follow from directly 300.9 but rather from 110.3 (B) that requires equipment to be installed in accordance with its listing. Kent Osterberg Blue Mountain Solar Glenn Burt wrote: Kent,   Can you direct me to a code citation that says that splices made inside a NEMA 4 rated enclosure must be suitable for the location of the enclosure, and not the protection level afforded by the enclosure? I have had this discussion and lean toward the other side that splices made in the enclosure need only be rated to the protection rating of the enclosure, as long as all conduits are properly terminated with fittings that meet the minimum rating of the enclosure.   Thanks,   Glenn Burt   From: re-wrenches-boun...@lists.re-wrenches.org [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Kent Osterberg Sent: Thursday, October 20, 2011 12:30 PM To: RE-wrenches Subject: Re: [RE-wrenches] Push-in Wire Connectors   Jason, The roof is a wet location so connectors rated for wet locations are required. The NEMA 4 rating of the junction box doesn't change matters. Kent Osteberg Blue Mountain Solar   Jason Szumlanski wrote: Anyone see a problem using Ideal In-Sure Push-In Wire Connectors in a NEMA 4 roof mounted PVC junction box? Specifically, Ideal Model 39 for splicing #10 AWG.   They are 105C, 600V rated, but not rated for wet locations. I’ve had inspectors require wet location rated twist-on wire connectors before in these boxes. I foresee an issue…   Unfortunately, these connectors were not addressed in John Wiles code corner Making Connections article in 2003. May be time for an update!   Jason Szumlanski Fafco Solar       _______________________________________________ List sponsored by Home Power magazine   List Address: RE-wrenches@lists.re-wrenches.org   Options & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org   List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org   List rules & etiquette: www.re-wrenches.org/etiquette.htm   Check out participant bios: www.members.re-wrenches.org     _______________________________________________ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org

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