On Mon, 10 Jun 2019 13:09:40 -0400, Clare Snyder
wrote:

On Mon, 10 Jun 2019 06:14:02 -0700 (PDT), wrote:



Until you get a local ground electrode out there I would be careful
bonding anything. It is best to drive 2 rods 6 feet or more apart.


Ground rods alone are not a good substitute for the the 4th ground WIRE.

I think you need to run the 4th wire so the safety ground is WIRED.

Even the best ground rod is many ohms

m
That would be MY suggestion as well.


Why is the ground rod at the service any better than the one at the
shop? I agree 4 is better than 2 but they are already bonded together
via the neutral in a 3 wire feeder. I doubt he wants to dig up the
yard. This was done this way for 90 years and we didn't pile up a lot
of bodies. The code change was mostly just to make the language
consistent with the rest of the code. Same with ranges and dryers. The
grandfather clause is still there for things done pre 96 adoption.
It does mean you have to be more careful with your bonding and
grounding tho.