[TowerTalk] grounding
Glenn Noska
nazgul34 at hotmail.com
Mon Jan 19 20:44:53 EST 2004
i'm an electrician in the surge capital of the world, Orlando ( did
lightning just hit that house?), Florida. the last three days were spent
devouring old towertalk threads on grounding, super informative! well, surge
protectors are pretty useless without a good ground and armed with towertalk
knowledge i was ready to give my customer's the best ground their money
could buy.
then, a really sharp engineer at Intermatic dropped this little
bombshell. if your ground is a lot better than the utility's ground at the
transformer then all the neighborhood's surges are coming for a visit. and
you might think they're just coming to your ground, but, as they travel the
common they induce surges in the two hots. So, you may have dodged the big
surge, and bought yourself a whole lot of little ones.
is this significant? do i need to put a big horkin MOV on the neutral
to the meter that'll add a couple dozen ohms and keep the neighborhood's
surges out? is there such a thing?
all kidding aside, i'm guaranteeing all appliances and electronics to
$10,000.00 or the homeowner's deductable (installing Intermatic
IG1300-4T-2C). please help.
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