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.
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