To: | "Dubovsky, George" <George.Dubovsky@andrew.com>,towertalk@contesting.com |
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Subject: | RE: [TowerTalk] Ground Rods |
From: | Jim Lux <jimlux@earthlink.net> |
Date: | Tue, 04 May 2004 10:07:10 -0700 |
List-post: | <mailto:towertalk@contesting.com> |
At 12:55 PM 5/4/2004 -0400, Dubovsky, George wrote:> -----Original Message----- > From: Jim Lux [mailto:jimlux@earthlink.net] > Sent: Tuesday, May 04, 2004 12:49 PM > To: wrt@dslextreme.com; towertalk@contesting.com > Subject: Re: [TowerTalk] Ground Rods > > > At 08:07 AM 5/4/2004 -0700, Bill Turner wrote: > >On Mon, 3 May 2004 18:38:26 -0600, Grillo's wrote: > > > > >One of the calculations I was looking at can drop > impedance from 300 > > down to 5 ohms with using only 4 of these rods. > > > Figure 25kA for a typical lightning stroke.. 25kA at 5 ohms > is 125V.. Got me... that's 125kV.. Ignore all my previous analysis of impedance and ground resistance. Oh well.. time to get coffee. _______________________________________________ See: http://www.mscomputer.com for "Self Supporting Towers", "Wireless Weather Stations", and lot's more. Call Toll Free, 1-800-333-9041 with any questions and ask for Sherman, W2FLA. _______________________________________________ TowerTalk mailing list TowerTalk@contesting.com http://lists.contesting.com/mailman/listinfo/towertalk |
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