Again, I am using Buchannon copper crimp sleeves, with a Buchannon crimper, never seen one NOT work or go BAD. This is the best connection I have seen. I've never had an inspector open up my rooftop j-box/combiner box and ask about the listing of my connectors, but as a solar business owner who's reputation rests on good installation practice, this is the best connection, and it lasts long term, especially when you fill the crimp cap with anti-oxidant compound, before you install the cap. Mike
On Tue, Sep 6, 2016 at 1:25 PM, Jason Szumlanski < ja...@floridasolardesigngroup.com> wrote: > I was just called last week to a three phase Enphase system installed by > others with three of eight strings that were exhibiting erratic voltages on > random phases. First I checked the combiner panels and everything checked > out. I went to the roof and discovered that wet rated wire nuts were used > (red). The first of eight j-boxes that I opened, I just pushed a wire a > little and heard crackling sounds. I didn't have to go any further... bad > connections. Problem identified. > > So the question remains... what ARE you using? There is a recent thread > about fine stranded wire and Polaris taps not being acceptable. There are > also people using Alumiconn and Polaris black connectors, which are not > rated for wet/damp locations. This all ties in together in terms of best > practices in roof junction/transition boxes. > > > Jason Szumlanski > > > > > On Tue, Sep 6, 2016 at 3:19 PM, August Goers <aug...@luminalt.com> wrote: > >> Are those wire nuts listed for wet locations? Most ideal outdoor >> (damp/wet) rated wire nuts are blue or grey in my experience. >> >> >> >> August >> >> Luminalt >> >> >> >> *From:* RE-wrenches [mailto:re-wrenches-boun...@lists.re-wrenches.org] *On >> Behalf Of *Benn Kilburn >> *Sent:* Tuesday, September 06, 2016 12:02 PM >> *To:* RE-wrenches >> *Subject:* Re: [RE-wrenches] Wire nuts >> >> >> >> The reason i'm asking is that the only time i have seen a short, >> first-hand, in a wire nut, was because it appeared that one wire was pushed >> down rather than binding with the other wire, which would have happened if >> the wires were not held tightly when the nut was twisted on. Also, it was >> a stranded wire (that was pushed down) being connected to a solid wire, >> which is acceptable, but care must be taken to do it properly. >> >> Also, on all the Ideal wire nut packages I have, the instructions say to >> twist the wire nut on until there are two visible twists in the wire. I >> suppose this is to ensure the twist/connection is sufficient to make a >> solid connection and perhaps to keep the wires together if the wire nut is >> removed. >> >> The ones in this photo do not look like they were installed as per the >> instructions, which brings how much attention was put in to installing them >> in the first place. >> >> I've always questioned the why wire nuts are cautioned against, >> especially considering how many wire nuts are used in residential and >> commercial jobs. I'm sure if there was a legit issue with them then >> insurance companies would insist they not be used, such as aluminum wiring? >> >> >> *Benn Kilburn * >> >> CSA Certified Solar Photovoltaic Systems Electrician, SkyFire Energy Inc >> >> 14515 – 121A Ave NW | Edmonton, AB | T5L 2T2 >> >> P: 780-474-8992 | F: 888-405-5843 | www.skyfireenergy.com >> >> [image: email] <b...@skyfireenergy.com> [image: facebook] >> <https://www.facebook.com/SkyFireEnergy> [image: twitter] >> <https://twitter.com/SkyFireEnergy> [image: linkedin] >> <https://www.linkedin.com/company/283735?trk=tyah&trkInfo=tarId%3A1408655033432%2Ctas%3Askyfire%2Cidx%3A2-2-5> >> >> >> [image: SkyFire Energy Logo_horizontal] >> >> *WE HAVE MOVED!** Please note our new address above.* >> >> >> >> On Tue, Sep 6, 2016 at 12:47 PM, Jerry Shafer <jerrysgarag...@gmail.com> >> wrote: >> >> All the other nuts are tight so l cant not say it was or not but l see >> this alot and this was one that was caught just at the right time. >> Jerry >> >> >> >> On Sep 6, 2016 8:44 AM, "Benn Kilburn" <b...@skyfireenergy.com> wrote: >> >> Jerry, >> >> Can you confirm that this was caused by a failure of the wire nut, >> itself, and not due to user error (not properly stripping enough jacket, >> inserting even length wires and sufficiently twisting on the wire nut) >> >> Benn Kilburn >> >> SkyFire Energy Inc. >> >> 780-906-7807 >> >> >> On Sep 6, 2016, at 12:32 PM, Jerry Shafer <jerrysgarag...@gmail.com> >> wrote: >> >> Wrenches >> Better pic >> >> >> >> On Sep 5, 2016 4:52 PM, "Jerry Shafer" <jerrysgarag...@gmail.com> wrote: >> >> To my fellow wrenches >> It comes up every so often and with DC, I will not use, approve or pass >> any wire nuts on any DC side. Some say its OK but the facts are they will >> fail, this connection was just six years and when l opened the junction box >> it was glowing and by the looks of it has for some time. There are 8 >> strings 2 per string and thats a 12.5 % failure rate (the other one was >> completely distroyed) not to mention the fire hazard in a PVC junction box. >> Please pass this along and tell everyone to stop using these. >> Jerry >> >> <2016-09-06 08.29.40.jpg> >> >> _______________________________________________ >> List sponsored by Redwood Alliance >> >> List Address: RE-wrenches@lists.re-wrenches.org >> >> Change listserver email address & settings: >> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org >> >> List-Archive: http://www.mail-archive.com/re >> -wrenc...@lists.re-wrenches.org/maillist.html >> >> List rules & etiquette: >> www.re-wrenches.org/etiquette.htm >> >> Check out or update participant bios: >> www.members.re-wrenches.org >> >> >> _______________________________________________ >> List sponsored by Redwood Alliance >> >> List Address: RE-wrenches@lists.re-wrenches.org >> >> Change listserver email address & settings: >> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org >> >> List-Archive: http://www.mail-archive.com/re >> -wrenc...@lists.re-wrenches.org/maillist.html >> >> List rules & etiquette: >> www.re-wrenches.org/etiquette.htm >> >> Check out or update participant bios: >> www.members.re-wrenches.org >> >> >> _______________________________________________ >> List sponsored by Redwood Alliance >> >> List Address: RE-wrenches@lists.re-wrenches.org >> >> Change listserver email address & settings: >> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org >> >> List-Archive: http://www.mail-archive.com/re >> -wrenc...@lists.re-wrenches.org/maillist.html >> >> List rules & etiquette: >> www.re-wrenches.org/etiquette.htm >> >> Check out or update participant bios: >> www.members.re-wrenches.org >> >> >> >> _______________________________________________ >> List sponsored by Redwood Alliance >> >> List Address: RE-wrenches@lists.re-wrenches.org >> >> Change listserver email address & settings: >> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org >> >> List-Archive: http://www.mail-archive.com/re >> -wrenc...@lists.re-wrenches.org/maillist.html >> >> List rules & etiquette: >> www.re-wrenches.org/etiquette.htm >> >> Check out or update participant bios: >> www.members.re-wrenches.org >> >> >> > > _______________________________________________ > List sponsored by Redwood Alliance > > List Address: RE-wrenches@lists.re-wrenches.org > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches. > org/maillist.html > > List rules & etiquette: > www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > www.members.re-wrenches.org > > > -- Michael & Jessica Nelson MD Electric & Solar Inc. 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