I'm just about to run a generator service line through a buried conduit. My question relates to the proper size of the ground wire.
I'm going to pull a 220 service thru 1.250" PVC conduit. I'll use 1 black 8 ga and 1 red 8 ga for the hot feed. 1 white 8 ga will be neutral. What would be the recommended ga for the green ground wire? Does it also have to be 8 ga? My books say that the ground wire MUST be 8 ga min, but they are talking about the wire that leads from the service buss to the pipe or ground rod. Will this also apply to the ground wire that I run inside the conduit with the service feed?
