On Tue, 2 Jan 2007 00:33:03 -0500, "Jimmie D"
wrote:



Very common for local code to overide this and for good reason. You never
know when a piece of metal pipe is going to be replaced with plastic so a
ground rod has to be used with the electrical service.The plumber dont know
it is being used as a ground. and the electrician doesnt know all the metal
pipe has been replaced with PVC.Ground rods are cheap and easy to install.

Jimmie

There was a time when the expression "water pipe ground" was common.

Extra ground rods actually contribute to the risk unless the are tied
together with at least #6 wire. (NEC) Allowing the grounds to be
commoned through the power distribution will put appliances in the
loop with expensive results.

John Ferrell W8CCW