quogueelectric said:As to what % comes back as stray
I quizzed a couple of my old prof's when I was looking into electric fields and their effect on the public. It seems that the vast majority, greater than 80%, of the return current flows in the neutral on a typical feeder, and less than 20% of the return current flows in the ground. Many times the ground percentage is much less than 20%, with a 3 phase feeder for example.
That being the case, the 3 phases and neutral together would essentially cancel out B field effects at a distance. A thought that is not often considered.