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From: smh@mhuxu.UUCP
Newsgroups: misc.consumers.house,rec.video,sci.electronics
Subject: Re: Lightning Protection Advice Needed
Message-ID: <6815@mhuxu.UUCP>
Date: Tue, 22-Sep-87 09:37:17 EDT
Article-I.D.: mhuxu.6815
Posted: Tue Sep 22 09:37:17 1987
Date-Received: Fri, 25-Sep-87 04:44:34 EDT
References: <2562@ncrcae.Columbia.NCR.COM> <14917@topaz.rutgers.edu>
Organization: AT&T Bell Laboratories, Murray Hill
Lines: 17
Xref: utgpu misc.consumers.house:1216 rec.video:1732 sci.electronics:1251
Summary: telephone protection

In article <14917@topaz.rutgers.edu>, ron@topaz.rutgers.edu.UUCP writes:
> Telephone lightening arresters are commonly used on all circuits these
> days.  Surge protectors for phone lines are also available, but their
> use is less common.

Yes, the phone company installs primary protectors where the wires enter
your home.  These are designed to keep the voltage on the phone line from
rising above 600 to 1000 volts depending upon the model, and the number
of times that it has been zapped.  I found out the hard way that this is
not good enough to protect some modems.  Now I use a secondary lightning
protector on all lines with modems.  These are available from such places
as Inmac for $59.  I have had two of the Inmac protectors smoked (burned
up) by lightning strikes but they saved the modem in each case.  If some
one knows of a better protector I would be interested.  I am on the end
of a long telephone line that runs through a valley.  Whenever a storm
hits the valley, our phone rings on every strike.  However, only when
we get a strike in our yard do we get the protectors smoked.