The ground wire must be either green or bare. It cannot be black or any other color. If it's 10 gauge, then it must be copper. You could use aluminum but it would need to be larger, and it's weird to mix copper and aluminum in the same run. I would use solid bare copper.
would it be ok to run a bare solid copper wire thru the conduit, would the bare copper wire short to the conduit?
I just realized that this was a stupid question! since the ground bar kit would be screwed to the metal box to which the conduit is attached...
Last edited by jeffrey mays; 10-13-2012 at 10:02 PM.