Minimum spacing for 3"x6" cells on the glass

[rmay635703]

I am curious how close you can safely locate solar cells on your panels, specifically 3"x6" and not risk any potential damage? I will be building at room temperature (about 75, no I don't have control of the temp )

The reason I need them as close as is reasonable is because the area I need for my target voltage is very near the nominal area taken by the cells so that may be a large holdup if I can't locate cells close enough.

The plant I work at tosses a lot of "expired" sealed clear RTV flowable sealant (as per gov req.), I will have to get the exact spec but I am thinking it may be usable, if nothing else for the edges and back of the cells. And it is clear but not sure if its clear enough.

Thanx
Ryan

[Mike90250]

Spacing depends on the voltage of your panels. if only 20VDC, you can space 1/8 inch apart. Higher voltatge = wider spacing.

As to the sealer, there are 2 types, Acetic Acid cure for home owner bathtub & kitchen use, smells like vineager.
For electrical use, they have a Acetone cure, and that does not damage electrial parts. The 1 part acid cure will damage your cells.