Hello Mark (and all), Exeltech AC Module inverters do not have an external ground connection because they are certified to UL1741 as grounded through the utility ground. Also, and because all DC wiring is internal to the inverter, there is no requirement for DC ground-fault or arc-fault circuitry in our inverters.
Installers don't need to attach a ground conductor to our inverters. That step has already been done internally for you. To attain this certification, and as part of the certification to UL1741, our inverters had to conduct 40 amps through the chassis and inverter wiring without damage or destruction to the conductors and connectors. Dan Lepinski, Senior Engineer Exeltech / Exeltech Solar Products --- On Mon, 1/14/13, Mark Frye <ma...@berkeleysolar.com> wrote: > From: Mark Frye <ma...@berkeleysolar.com> > Subject: [RE-wrenches] GEC for Micro-Inverters and ACPV Modules > To: "RE-wrenches" <re-wrenches@lists.re-wrenches.org> > Date: Monday, January 14, 2013, 5:31 PM > Does anyone have the latest on the > GEC for micro-inverters/ACPV issue? > > I know it is still in NEC 2008 and I believe 2011 with plans > to address it in 2014. > > I am specifically interested in the issue of GEC means > continues (irreversible splices) and the whole business of > the DC side of these devices constituting a separately > derived system. > > Enphase technical support is fine if the micro inverter > chasis is bonded to a EGC only, but they leave the lug on > the chasis if you want/need to build a GEC. > > SolarBridge (pre-assembled micro-inverter) seems to be > devoid of a chasis lug and therefore by extension does > not/can not had a GEC in the system. > > Exeltech (integrated micro-inverter aka. ACPV) does not seem > to have a lug on its chasis. > > Has the industry pretty much moved to not requiring a GEC > for these devices and if so, how are the AHJ taking it? > > Thanks, > Mark Frye > Berkeley Solar Electric Systems > _______________________________________________ > 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
