>I misread the original post. I thought we were talking about paralleling the grounded conductor and an equipment grounding conductor.
From the service main to the utility transformer "a second grounded conductor" is basically indistinguishable from that given that bonding is required in the main.
So long as no one has a problem with parallel grounded conductors I'm happy. I hope Mike is satisfied that this is a good requirement that the utility has imposed on him.
Because of the skin effect reducing ampacity for high frequencies, the day may come when neutrals are routinely specified as two smaller diameter parallel conductors. Don't be surprised if you live to see noise suppression for neutrals as a requirement.
