10/3 or 8/3 for generator
I am in the middle of my generator panel backfeed project. I wanted your advise on if i should use 10/3 or 8/3 between the breaker panel and the inlet.
From what I understand, 10/3 would normally be fine but here is the layout. From the breaker to the inlet is about 40 feet. Then an additional 25 foot 10/3 cable from inlet to generator.
So total distance from breaker to generator will be 65 feet. So would going 8/3 from inlet to panel do anything to prevent loss of amperage? or should I just stick with 10/3 because the loss will be minimal anyway?
Also, if I do go 8/3, is it OK to connect to a 30 amp breaker, or MUST 8/3 always connect to a 40 amp breaker? Thanks in advance!