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From: ken@rochester.arpa (Ken Yap)
Newsgroups: sci.electronics
Subject: Re: Neutral-Ground Shorts
Message-ID: <382@sol.ARPA>
Date: Wed, 24-Jun-87 11:32:10 EDT
Article-I.D.: sol.382
Posted: Wed Jun 24 11:32:10 1987
Date-Received: Fri, 26-Jun-87 04:46:10 EDT
References: <820@sdcc12.ucsd.EDU> <583@inuxh.UUCP> <467@rlvd.UUCP> <258@uvicctr.UUCP> <753@unccvax.UUCP> <260@uvicctr.UUCP>
Reply-To: ken@rochester.UUCP (Ken Yap)
Organization: U of Rochester, CS Dept, Rochester, NY
Lines: 16

|OK, I get your drift - but telephone companies run floating lines into
|houses and solve the lightning problem with surge arrestors.  Why can't
|the power company put surge arrestors in the transformers and/or in the
|house?

Yes, but the telephone company doesn't have to worry about connections
that get wired up to all the electrical appliances in the house. I
think capacitive transfer will probably raise the potential of the
ground wire should the power line get a direct hit, making all grounded
frames, like fridges, live.

I remember a page in the phone book, where I grew up, warning against
using the phone in a thunderstorm. Wonder if they still have that
page.

	Ken