Ground mount is 450' from the garage.
3 PV strings on the one mount, run to 3 separate string inverters in the garage. 6 #10awg to do this.
Do I need one #10awg ground conductor from the mount, which goes to a bar in the wiring trough and splits to each inverter, or do I need 3#10awg grounds one to each inverter from the ground mount?
I was thinking one #10awg wire, but technically they are separate sources and inverters.
2017 nec is in force here.
Inspector is reasonable, but wants code refs.
Thx
3 PV strings on the one mount, run to 3 separate string inverters in the garage. 6 #10awg to do this.
Do I need one #10awg ground conductor from the mount, which goes to a bar in the wiring trough and splits to each inverter, or do I need 3#10awg grounds one to each inverter from the ground mount?
I was thinking one #10awg wire, but technically they are separate sources and inverters.
2017 nec is in force here.
Inspector is reasonable, but wants code refs.
Thx
