At 10:30 PM 7/13/2007 -0700, you wrote:
Charles:
You might want to do a Google for three point method and fall of
potential. These are the two standard methods for measuring grounding
resistance. You should easily find tutorials from manufacturers of testing
equipment.
EWE's are at or near the
CAT:
You can use the methods I mentioned regardless of frequency (60 Hz, MW,
etc). It's up to you to provide the proper generator.
I use this: http://www.beecavewoods.com/testequipment/sinewave.html . I like
it because it's simple, parts are readily accessible, and best of all it
puts out enough