This problem is not limited to one manufacturer. One example is the Enphase smart controller. While the small holes are big enough for #6 ground and neutral, you have to strip the wires perfectly and have the hand of a heart surgeon to get them in there. And conduit entry is a royal pain because the enclosure is tapered on the bottom and sides.
Fortunately, all of these manufacturers seem to be making strides to make the roof installation easier. A little more attention to the electrical enclosures would be appreciated. Jason Szumlanski On Thu, Apr 14, 2022, 10:30 AM Dana Orzel via RE-wrenches < re-wrenches@lists.re-wrenches.org> wrote: > We have done one Solark installation & I was shocked as to the lack of > ground wire landing terminals & space. We added a 12126 metal box below to > ease the # of entrances to two 11/4”. > I jumpered a # 8 to a second ground bar to allow for additional landing > locations. I called Solark to question this & the response to the question > was “yeah we have heard this from other installers “. > End of call. > Dana Orzel > C: 208.721.7003 > E- d...@solarwork.com > > On Apr 13, 2022, at 8:21 PM, Maverick Brown via RE-wrenches < > re-wrenches@lists.re-wrenches.org> wrote: > > Ron > > The Sol-Ark has two MPPT channels and has two separate landing spots for > each MPPT channels. Each landing pair needs matching strings. 8 AWG wire > barely fits so the Sol-Ark PV terminals so they may only be rated for > 10AWG. > > I’m assuming you have a ground array The most common stringing method > would be to use a trench with conduit and THHN wire. You could also sleeve > a direct-burial cable into the ground. Calculate the voltage drop over the > distance to make sure 10AWG is adequate. If not, then make a junction, like > a MidNite or Outback combiner or an IMO switch at the array to get up the > right wire size, with an added MidNite Surge Protector or EMP shield > device. If it’s a long distance (larger wire size), add another combiner at > the inverter building entrance to get back to 10 AWG. > > https://practicalpreppers.com/product/imo-4-pole-16-amp-dc-disconnect/ > > Also, The Sol-Ark sizing guide helps with string calculations. > > https://www.sol-ark.com/solar-panel-sizing/SolarPanelSizing.html > > Contact me off list with additional questions. > > > > Maverick Brown > Off-Grid Solar Commander since 2006 > *Maverick Solar Enterprises, Inc.* > * • Solar Commander Remote Power* > > * • SunFlow Systems Cathodic Protection *maver...@mavericksolar.com > 512-460-9825 > > > On Apr 12, 2022, at 9:42 PM, Ron Young via RE-wrenches < > re-wrenches@lists.re-wrenches.org> wrote: > > Hi Wrenches, trying to wrap my head around a first time Sol-Ark install. > Because the max DC voltage is 500v at 18a and the PV I’m using is 40v DC > each I will have to create three strings each 480v. What would be the best > choice for a home run wire? I’ve always used smaller strings with micro > inverters, a combiner at the array and a single Teck home run cable but the > string inverter presents a different scenario and it looks like I’ll need > to use three home run cables, one for each string. > > Ron Young > > earthRight Products - Solareagle.com > Alternative Energy Solutions ~ Renewable Energy Products > > > _______________________________________________ > List sponsored by Redwood Alliance > > Pay optional member dues here: http://re-wrenches.org > > 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 > > There are two list archives for searching. When one doesn't work, try the > other: > https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > > List rules & etiquette: > http://www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > http://www.members.re-wrenches.org > > _______________________________________________ > List sponsored by Redwood Alliance > > Pay optional member dues here: http://re-wrenches.org > > 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 > > There are two list archives for searching. When one doesn't work, try the > other: > https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > > List rules & etiquette: > http://www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > http://www.members.re-wrenches.org > > _______________________________________________ > >
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