David, Wrenches I do not see anything talking about glass just the frame and even if they included glass 1 mm over 1m this is still out of that tolerance, to me it sounds like poor quality control or is internally considered acceptable. Jerry
On Mon, Nov 18, 2019 at 7:04 AM David Katz <[email protected]> wrote: > Here is a response from Jinko: > > > > On Mon, Nov 18, 2019 at 7:39 AM Jerry Shafer <[email protected]> > wrote: > >> Wrenches >> In the way back when years Sharp had one then two braces across the short >> side and stronger frames. >> Regarding the glass issue to me it sounds like poor quality and little QC >> of products. Again years ago l had a shipment of SolarWorld modules that >> the frames were bowed out on the long side, l contacted them and they >> stopped production to fix the problem, what has this module manufacturer >> said? >> >> On Mon, Nov 18, 2019, 7:24 AM Jeff Clearwater < >> [email protected]> wrote: >> >>> Yes good thought Jay but it strikes me if we are trying to offset the >>> results of anticipated bowing with crowning its time for a beefier frame or >>> thicker glass. REC modules went with 2 cross bars in their frame when going >>> to 72 cell. I’ve been observing frames get thinner over time - wondering >>> how a 30 mm frame could do the job on 72 cell mods when we used to have >>> twice that on 60 cell mods. It’s great to save aluminum and weight but not >>> at the expense of panel life. Can’t imagine the impact resistance goes up >>> with less support never mind possible degradation to the wafers due to >>> flexing? >>> >>> Any panel manufacturers on the List that can comment? Any other modules >>> besides RECS using cross bars? >>> >>> Thanks >>> >>> Jeff Clearwater >>> >>> Sent from my iPhone >>> >>> On Nov 17, 2019, at 2:25 PM, Jay <[email protected]> wrote: >>> >>> I’m wondering if it’s designed to account for gravity sag once the >>> modules are mounted. Lots of modules I’ve seen especially the larger format >>> ones seem to be concave with time. >>> >>> If I understand correctly, these are bowed up which would allow them to >>> settle flat? >>> >>> Jay >>> >>> >>> >>> On Nov 17, 2019, at 2:17 PM, Kristopher Schmid <[email protected]> >>> wrote: >>> >>> >>> The banding is a good thought, Glenn, except that the one module that >>> was oriented the opposite way was deformed in the opposite direction. This >>> rules out the forklift idea, too. I will check specs. I doubt that >>> testing will reveal anything immediate, but I'm a bit concerned about the >>> potential long term effects. >>> >>> On Sat, Nov 16, 2019, 9:12 AM Kristopher Schmid <[email protected]> >>> wrote: >>> >>>> So, I opened up a pallet of Jinko 400 watt half cell modules yesterday >>>> and noticed that every module was convex to the glass side. The center was >>>> 1/4 inch higher than the corners. Has anyone else seen this? Should I be >>>> concerned? Manufacturing issue? Intentional? >>>> >>>> Thanks, >>>> Kris >>>> >>> _______________________________________________ >>> List sponsored by Redwood Alliance >>> >>> List Address: [email protected] >>> >>> Change listserver email address & settings: >>> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org >>> >>> List-Archive: >>> http://www.mail-archive.com/[email protected]/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: [email protected] >>> >>> Change listserver email address & settings: >>> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org >>> >>> List-Archive: >>> http://www.mail-archive.com/[email protected]/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: [email protected] >>> >>> Change listserver email address & settings: >>> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org >>> >>> List-Archive: >>> http://www.mail-archive.com/[email protected]/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: [email protected] >> >> Change listserver email address & settings: >> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org >> >> List-Archive: >> http://www.mail-archive.com/[email protected]/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: [email protected] > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > List-Archive: > http://www.mail-archive.com/[email protected]/maillist.html > > List rules & etiquette: > www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > www.members.re-wrenches.org > >
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