This is a carryover from an old thread in a forum, but it should get some thinking started.
Looking for pros and cons in your own opinion and what you feel is NEC related, to a common grounding "Grid" approach.
This would be an interconnection to all grounding electrode systems incororated on a given site.
Reason for it would be all systems will be at the same potential at their grounding point for services and Transformers. This does not include service feeders from utility Transformers. Only from the main service section - outwards.
The goals are to have minimal ground fault Impedances, low [hopefully no] ground loop currents and more secure bonding. The problem of primary flash over would be addressed in this method.
I have seen it done at a few existing locations and wondered why it wasn't more common.
Any thoughts, input, comments and questions are welcome.
Scott "S.E.T."
