I just discovered that my ground rod isn't ideal by having the assumed 0 ohm to
earth. Measuring with 10VDC the current from neutral/waterpipe to the rod gives
about 140 ohms.
I use a 8mm rod 1m long in wet soil. I put in another one and tried several
places nearby and got it a bit lower, but far away from ideal.
So I assume the surface size is too small, one the other hand I want a small
rod that can be pulled out with ease in spring when the season is over.
What resistance do you get usually and what size do you use?
Stefan, you wrote yesterday that you got 65 ohms with your rod on sunday.
That's still pretty high
Jurgen Bartels Suellwarden, N. Germany
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