Chris, I had this happen once about six years ago. We do torque to specs, but anything is possible. We have been using Burndy products for the past five years and have zero problems with them. They are actually just a little bit less in cost than Polaris.
Daryl DeJoy NABCEP Certified PV Penobscot Solar Design > Chris, > I have had Polaris connectors fail in combiners and inside Main Service > Panels. I immediately quit using them.. That was about 5 years ago. I > didn't trust wire nuts either as I have had them meltdown. I'm a split > bolt junky now. They never fail unless you don't wrap enough insulation > around them. Had one split bolt arc and pit the metal box but no problem > with the connection. > > John Blittersdorf > Rob Stubbins Solar > Rutland, VT > > On Thu, Apr 6, 2017 at 1:57 PM, Kristopher Schmid <sol...@legacysolar.com> > wrote: > >> Hi Eric, >> >> I had this happen on one install. I assumed that it was due to >> insufficient terminal torque. I use the Polaris torque specs and my >> torqueing screwdriver now on all Polaris connectors and have not had any >> more issues (yet). >> >> Kris >> >> On Thu, Apr 6, 2017 at 12:35 PM, <e...@harvesthesun.com> wrote: >> >>> Wrenches, >>> >>> We have been having Polaris connectors start to fail on older installs. >>> About 4 or 5 years ago we abandoned wire nuts in favor of the much more >>> pricey, but deemed safer Polaris insulated tap connectors in our >>> combiners. >>> About a year ago we transitioned, about 80% away from Polaris to >>> Buchannon >>> connectors. We have had two recent call-backs on systems downed due to >>> Polaris connectors burning up inside of boxes. (No damage beyond the >>> connector itself). Recently we interfaced with another solar install >>> firm >>> that has gone back to wire nuts due to this same problem. Anyone else >>> seeing this? Wondering if this is an industry-wide issue regarding a >>> Polaris manufacturing defect or if we're still in the realm of isolated >>> flukes. >>> >>> Eric >>> SunHarvest >>> (530) 559-5023 >>> >>> _______________________________________________ >>> 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 >>> >>> >>> >> >> >> -- >> Shine On! >> >> Kris Schmid >> Legacy Solar, LLC >> 864 Clam Falls Trail >> Frederic, WI 54837 >> www.legacysolar.com >> 715-653-4295 <(715)%20653-4295> >> NABCEP Certified PV Installer >> Licensed Wisconsin Master Electrician >> BSEE >> >> _______________________________________________ >> 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 >> >> >> > _______________________________________________ > 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 > > _______________________________________________ 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
