Well, yes that's true.. In this case I was talking about the NEC (National
Electrical Code).. Sort of a basic electrical question, from a ham radio
prospective. They put up a Satellite Internet dish on my roof and it was
too far away from the 'Service' protective ground so it's not grounded. So I
ran my own bonding ground wire to tie it into the rest of my single point
grounding system. It started me wondering just how affective all these
ground rods were, even though they are all bonded together. So that started
me looking around for a way to measure the resistance to ground, as I figure
the less the better. Of course, in this case I am talking about 'protective'
ground as required in the NEC handbook. The electricians around here eyes
glaze over when I ask about the 25 ohm or less requirement.

So I figured maybe someone on here had experience measuring the required
ground.. It would be my luck the house would take a minor lightning hit and
the Insurance company would try to weasel out of there responsibilities by
saying the ground didn't meet the NEC requirements not to mention I rather
not have issues. While unlikely, I hear all sorts of horror stories on how
they are trying to disallow claims for all sorts of reasons after Katrina.

Joe AG4QC

"Ivan Makarov" wrote in message
...
Apparently Joe is talking about contact resistance between a grounding rod
and the soil. Is that correct, Joe? I also saw those ground rod clamp
testers in the Inet, and is still puzzled how they claim accuracy down to
0.01 Ohm.

Thks,
Ivan