Hi Larry I wasn't planning on installing anything between al and al. Just between SS and al. So the module will still be bolted directly to the al rack material. I'm not too worried about the grounding, and certainly not worried enough to install lay in lugs with copper to each module.
As lones pointed out, there are parts that would insulate the bolt. But as the owner hasn't requested that, not going to suggest it! I sure didn't plan on stirring the pot like this. Just really wanted some help on sourcing the washers Thanks Jay Peltz power > On Jan 28, 2016, at 6:49 AM, Starlight Solar Power Systems > <la...@starlightsolar.com> wrote: > > Hey Jay, > > I’m still trying to picture this and had a thought: If you isolate the module > from the rack electrically with these washers, and both are grounded, and the > two grounds are not at the same potential (different length ground runs), you > may be creating a path for high voltage into the array in event of a near > lightning strike. > > Also, if the washer is between the two metals, how will you isolate the bolt > that puts them together from not touching the sides of the holes? Perhaps > you need to look into non-conductive fasteners as well. > > Larry Crutcher > Starlight Solar Power Systems > > > > > On Jan 27, 2016, at 6:44 PM, Jay <jay.pe...@gmail.com> wrote: > > Ok here is the long form. > > Customers system is in Mexico, Baja. So I'm not concerned about legal issues. > It is a custom racking design to fit his house. > Flat concrete roof,low tilt design with extra heavy duty engineering for > hurricanes. Easy access for future MX of all fasteners > Owner lives on his own island in the South Pacific. > This is his 2nd ( more?) house. > > He wants this. I've told him all of what you all and have said including that > there will need to be future mx to check bolt tightness. > > I am going to do it for him. > Thanks for all the advice on where to get look for the parts he's looking for. > > Jay > > Peltz power. > > > _______________________________________________ > 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 >
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