Greetings,

In this case Electrical impedance will be higher by routing the current
through a 4 AWG wire instead of the lower impedance 3/4" Cu pipe. That
doesn't mean it isn't why the rule is written that way-- only that in my
case it shouldn't matter.

William

"Doug Miller" wrote in message
m...
In article 1108170751.89a9bbb9fad44af36058302f2e1c2f7e@teran ews,
"William Deans" wrote:
Greetings,

The water pipe is connected to the grounding bus but not within 6 feet of
where it enters the house. Why the 6 foot rule? As you say who knows
whether the pipe outside *is* even metal?

Why the six-foot rule? Electrical impedance, that's why.

--
Regards,
Doug Miller (alphageek at milmac dot com)

Nobody ever left footprints in the sands of time by sitting on his butt.
And who wants to leave buttprints in the sands of time?