[RE-wrenches] Non-conductive module frames

[Bill Loesch]

Willi,

I haven't yet heard of plastic framed modules (and candidly, I hope I 
never do). I have heard of frameless modules. Essentially glass on top 
and glass on bottom. No metal (except for the mounting hardware). 
Hopefully you don't want to use plastic for that. One of these 
manufacturers exibited at SPI Las Vegas and had a very large, very 
attractive booth demonstrating the applications of frameless modules. If 
no one else on the List can remember this exhibitor (or his 
competitors), I'm sure I can resurect my records and get this manu. to you.

Best wishes, keep up the high standards,

Bill Loesch
Solar 1 - Saint Louis Solar
314 631 1094

On 8/31/2015 5:22 PM, William Miller wrote:
>
> Friends:
>
> I thought I had sent a message about this to the list but I believe 
> not.  My apologies if this is a repeat.
>
> We have been having trouble with corrosion on an installation on a 
> beachfront residence.  Here is a link 
> <http://www.millersolar.com/MillerSolar/case_studies/marine_corrosion/Marine_corrosion.html> 
> to a page I wrote about this problem.
>
> I am not a metallurgist, but I am thinking the problem is exacerbated 
> by circulating currents.  PV leakage is unavoidable.  The currents 
> will migrate to the metallic frames.  When the frames come into 
> contact with any other energized or bonded metal, electrolysis results.
>
> Regardless of the exact cause, metal is the affected material.  I am 
> wondering if the best practice would be to eliminate as much as 
> possible any metallic components.  This would mean plastic framed 
> modules and plastic racking.
>
> I can source fiberglass strut easily.  What I am looking for is 
> plastic framed PV modules.  Do any of you know of a manufacturer or 
> distributor of such?
>
> Thanks in advance.
>
> William
>
> Gradient Cap_mini
> Lic 773985
> millersolar.com <http://www.millersolar.com/>
> 805-438-5600
>
>
>
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-- 
Bill Loesch
Solar 1 - Saint Louis Solar
314 631 1094



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