Grounding Electrode need to be Supplemented?

[mjf]

Sure, but if I was an inspector I should not just assume that buried pipe is metal all the way.

If I did not see it before back filling I can't count on anything.

Easy enough to do a continuity test.

 

[mjf]

It kind of comes down to this... Is it possible for someone to touch the pipe and touch a metal part of the electrical system? If so, the pipe should be bonded, to provide a lower resistance path between the metal part and the pipe than someone's body might provide, in case there were an undetected fault in the electrical system.

Touching both at the same time includes if the person might be holding something long and metal in their hands. Most likely, bonding the pipe is a good idea.

I'm required to bond the natural gas lines when I do a service upgrade. I keep wondering when "they" will require me to bond the steel oil tanks/piping found in alot of basements around here!

 

[don_resqcapt19]

You may want to go back and read post #1 again. He has to do something.

I don't see that in post 1. He says he has to reground it because the metal underground water pipe has been replaced with non-metallic pipe.