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Re: [TowerTalk] Fwd: Grounding of tower

To: towertalk@contesting.com
Subject: Re: [TowerTalk] Fwd: Grounding of tower
From: gdaught6@stanford.edu
Date: Tue, 07 May 2013 08:15:06 -0700
List-post: <towertalk@contesting.com">mailto:towertalk@contesting.com>
Jim wrote...

> actually, the voltage rise due to ohmic loss is a tiny fraction of
> the 
> rise due to L*di/dt.  Typically, a lightning stroke might have a
> di/dt 
> of 10kV/us for a smallish stroke.  With 1 microhenry inductance
> (about a 
> meter of any conductor, strap, wire, any size) that's 10kV.

In the interest of physical accuracy, di/dt can't have the units of kV/us.  
What was 
meant is obviously kA/us.

73,

George T Daughters, K6GT
CU in the California QSO Party (CQP)
October 5-6, 2013


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