ECN Forum Forums General Topics of the Trade General Discussion Area sub panel in seperate structure

Will there be any other conductive paths to the barn? (ie phone line or metalic water pipe etc...)

If so yes, and you would isolate the neutral from the EGC and the ground rod (GEC)connections.

Even if you are not going to have any other conductive paths right now, it is still the best way to do this. (plan for the future)

Roger