Path: utzoo!attcan!uunet!maverick.ksu.ksu.edu!uafhp!eleg!cdc
From: cdc@eleg.uucp (C. David Covington)
Newsgroups: comp.dcom.modems
Subject: Re: Lightning Strikes!
Summary: Underground does not solve lightning problems
Message-ID: <4941@uafhp.uark.edu>
Date: 18 Jul 90 16:21:02 GMT
References: <90187.213022DLB112@psuvm.psu.edu> <959@ke4zv.UUCP> <913@netmbx.UUCP>
Sender: netnews@uafhp.uark.edu
Organization: College of Engineering, University of Arkansas, Fayetteville
Lines: 13


In article <913@netmbx.UUCP>, snoopy@netmbx.UUCP (M. Niemz) writes:
> 
> I heard from several friends in germany who got a lighning via phoneline
> into their modems (although most phonelines in germany are below ground).

      Huge currents travel along the surface of the ground in the vicinity of
a lightning hit.  These transient currents induce currents along burried cables
in the vicinity of the current.  Our cable TV lines have had to be replaced
a couple of times in six years probably for this reason.

C. David Covington (WA5TGF)  cdc@uafeleg.uark.edu     (501) 575-6583
Asst Prof, Elec Eng          Univ of Arkansas        Fayetteville, AR 72701