Ok.. trying to wrap my head around properly grounding my PV system. I thought I had it... but then I read of another code change that makes me scratch my head a good bit.
With that said... Here is what I'm currently planning.. can someone please tell me if this meets current code requirements or anything I need to change.
I'm using IronRidge racking with integrated grounding.
Plan for the EGC was to run a #10 or #8 (10 is the minimum required) stranded/insulated wire from the grounding lug on the rack to the EGC lug on the inverter ran in the conduit with the DC conductors. Then from the inverter to the 40a disconnect... then to the sub panel ground bar.
From what I'm reading, I will also need to run a GEC from the racking system back to the GE using #6 solid copper.
So both the GEC and EGC connect to the racking system/array via the ground lugs on the rack themselves... correct?
I had also read about an additional ground rod being needed potentially... however I don't think I would need it due to proximity of the building's GE. Might have to call the AHJ to find out on that one....
If it matters, the inverter being used is a SMA SB7.7
Suggestions?
Thanks for the help.
With that said... Here is what I'm currently planning.. can someone please tell me if this meets current code requirements or anything I need to change.
I'm using IronRidge racking with integrated grounding.
Plan for the EGC was to run a #10 or #8 (10 is the minimum required) stranded/insulated wire from the grounding lug on the rack to the EGC lug on the inverter ran in the conduit with the DC conductors. Then from the inverter to the 40a disconnect... then to the sub panel ground bar.
From what I'm reading, I will also need to run a GEC from the racking system back to the GE using #6 solid copper.
So both the GEC and EGC connect to the racking system/array via the ground lugs on the rack themselves... correct?
I had also read about an additional ground rod being needed potentially... however I don't think I would need it due to proximity of the building's GE. Might have to call the AHJ to find out on that one....
If it matters, the inverter being used is a SMA SB7.7
Suggestions?
Thanks for the help.
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