Re: Code Question

"Tom" <(E-Mail Removed)> wrote in message
news:(E-Mail Removed)...
> I jjust failed a service upgrade inspection and I need some opinions.
> The service went from 100 amps to 200. The existing grounded electrode
> conductor goes directly to a driven ground rod using number 6 copper
> and aanother ground wire using 4 aluminum goes to the water pipe. the
> water pipe goes to a meter and is connected to PVC pipe that goes into
> the concrete basement floor. The AHJ wants the wire going to the water
> pipe to be sized according to 250-66 because he states that the water
> pipe is a grounding electrode and the rod is a supplemental ground. He
> also wants a jumper around the water meter. My contention is that
> according to 250-52 the water pipe is not an electrode unless it is in
> contact with the earth for 10 feet. I considered the ground rod the
> grounding electrode and used and the water pipe as stated in 250-104.
> Not that it matters since it is an easy fix and he is the AHJ, but I
> would like to know where if at all I went wrong.
> Thanks for any and all replies.
> Tom

Where I live water pipes are bonded cause there is almost no metallic
systems left in the ground. That even includes the gas piping. Most new
homes are all plastic piping for water and say so on the service. They do
not even bother to bond the metallic entry piping anymore.

Changing a service where I live you would need 2 ground rods connected
properly.

From what you said there is plastic between the house and the underground
piping. Sort a defeats the meter jumpers does it not. If I understand what
your saying correctly.

Appears to me that you had an inspection that did not see all of the
situation.

I agree with you up to a point. I would have called ya on the second ground
rod. Which is a biggie here now. Unless of course you provide testing of
the rod and it is under 25 ohms.
I try to maintain everything I do at under 5 ohms.