"Bill Turner" wrote in message
...
On Wed, 08 Sep 2004 14:51:10 GMT, "Jimmie"
wrote:
Thats what I thought the first time I saw it done but this is the way the
power company checks grounds.
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I can't believe a power company could be dumb enough to blow a fuse to
measure (?) ground resistance.
A much better way would be to use either a variac or a current-limited
source and calculate the resistance with Ohm's law.
In what way better, They are not interested in a specific value in most
cases. Just a go -no go test. Plug the tester into an outlet, touch it to
the ground stake after isolating ground from neutral. Fuse pops or it
doesnt, Ground meets spec or it doesnt. Apparently there are lot of people
who think this idea is not so dumb since the tester they use is commercially
available, a fact that I mentioned in the previous post that you chose to
ignore.
--
Bill, W6WRT (founder of the Society to Prevent Fuse Abuse)
QSLs via LoTW
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