use a #12 ground in a conduit with #10's ?

Little Bill

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Staff member
Location
Tennessee NEC:2017
Occupation
Electrician
If you're running two circuits to the same building, you would have to run a 240V circuit to a subpanel anyway. Unless the circuit is a MWBC, you can't run more that one circuit to a separate building.
The 240V would definitely help with VD as well
 

GoldDigger

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Location
Placerville, CA, USA
Occupation
Retired PV System Designer
It's two circuits to the end of a driveway, by the county road.
If the big load is the motorized gate, look for one that works with 240 input. Your %VD improves by a factor of 4. (120V, 20A sounds like a pretty big motor for a gate.) Your VD should be based on the actual load, not the OCPD size.
Or look for a DC operated gate with a battery that can be recharged at a much lower power consumption.
 
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