On Sun, 4 Dec 2005 21:11:23 -0500, "Ivan Makarov"
wrote:

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


Accuracy as in reading + or - 0.01 vs reading of 0.01 ohms absolute -
very big difference in technology involved. ;-) You have to define
what they are doing.