By cs409
Quote
the rod etc is more for surge and lightning,,,,someone do that math!

A rod all by itself can open the overcurrent protection at the voltage levels that the power company uses for local distribution.

It also can help dissipate a lightning strike.

But what kind of surge can it help with?

Only a surge on the neutral, it will do nothing for a surge on either of the ungrounded conductors.

I have a mind set like Pierre's, a ground rod is of little use for the services I generally deal with.

Bob

Bob Badger
Construction & Maintenance Electrician
Massachusetts