I have attached a UTUBE video from an American electrical consultant,very interesting info on grounding and bonding.
http://youtu.be/qNZC782SzAQ
https://www.youtube.com/user/MikeHoltNEC
That was interesting. It's seems grounding rods accomplish nothing, so does this mean our bonding is also useless?!
I think what I am getting out of watching Mikes videos is that just running grounds and bonds without good reason and simply following Ohm's Law.Like if your trying to protect against lightning strikes the one would have to have the building properly grounded for lightening strikes specifically not just bonding to the electrical ground. Sounds to me most electrical inspectors and Utility engineers do not know shit about bonding and grounding,so much for University degrees.