Wire nuts on the DC side have been verboten in Oregon for over a decade. IMO, copper split bolts wrapped with insulating then regular tape are the way to go. Back in the days of 12V system and no series fusing, we used to use them all the time to combine PVs. I've gone into some of those systems a decade later and found the bolts to be discolored by the tape on the outside but the wires bright and tight under the bolts.
On Jun 24, 2014, at 9:35 AM, William Miller wrote: Steve: The PV is 200 feet away on the other side of a building. We have THWN in PVC conduit. This job was installed over 10 years ago. We don't want to repull all of the leads for 6 strings in PV wire. We Void splices like the plague but the PV leads terminated in a HU361 switch and we needed to splice on some short leads to make this work. Are you telling me we can no longer use 600 volt rated building wire and/or standard 600 volt rated wire nuts on PV circuits with your products? If so, this is a BIG deal for installers. Thanks, William Miller Solar > On Jun 24, 2014, at 8:52 AM, Steve Jefferson > <steve.jeffer...@sma-america.com> wrote: > > Morning William, > > You can contact me offline, or better yet, call our Service Line. I checked > and see no calls in about AFCI issues. > > Also, we don't recommend wire nuts on DC conductors (or AC) due to the > probability of unreliable and highly resistive connection. > > Thanks > > SMA America, LLC > Steve Jefferson > Service Line Supervisor > 3925 Atherton Ave > Rocklin, CA 95765 - 3714 > U.S.A. > Tel: +1 916 625 3185 (direct) > Fax: +1 916 625 0871 > Mobile: +1 916 622 4253 > Email: steve.jeffer...@sma-america.com > www.SMA-America.com > > > > This email and any attachments thereto may contain SMA America, LLC > confidential, privileged and private material for the sole use of the > intended recipient. Any review, copying, or distribution of this email (or > any attachments thereto) by others is strictly prohibited. If you are not the > intended recipient, please contact the sender immediately and permanently > delete the original and any copies of this email and any attachments thereto. > Thank you. > > > > -----Original Message----- > From: RE-wrenches [mailto:re-wrenches-boun...@lists.re-wrenches.org] On > Behalf Of William Miller > Sent: Monday, June 23, 2014 3:40 PM > To: RE-wrenches > Subject: [RE-wrenches] AFCI disturbances. > > Friends: > > We are starting to replace dying SB2500s with new units. The AFCI is giving > us fits with disturbances. We are told we can not even use wire nuts. > > Has anyone else dealt with this? What have you learned? > > Thanks in advance. > > William > > Miller Solar > _______________________________________________ > 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 _______________________________________________ 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
