Metal Roofing Grounding [RE-wrenches]

[Kurt Nelson]

Jason Fisher wrote>  If the pans were not grounded and a hot wire was in
contact with the
> roof, how would the GFP trip

Hey Jason,

I can see that it would trip if someone touched the roof or leaned an AL
ladder against it, but even without GFP I think we all regularly ground the
PV frames and rack.  I am also confused about the requirements of grounding
a metal roof itself.  I see a lot of them out there with no grounding and
wonder if inadvertently grounding the roof through the array frame grounding
is a good deal.

Kurt Nelson

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