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[TowerTalk] Shack ground disconnect?

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Subject: [TowerTalk] Shack ground disconnect?
From: JimMiller@STL-OnLine.Net (Jim Miller)
Date: Fri Mar 14 22:38:49 2003
Who was watching to see that the cows that survived were indeed standing
broadside to the tree.  They would have certainly moved before anyone would
have seen anything.  Sounds like a possibility but likely with little
evidence other than the dead ones would probably not have gone far, hi.
73, de Jim KG0KP

----- Original Message -----
From: "Roger D. Johnson" <>
To: "Rob Atkinson, K5UJ" <>
Cc: <>
Sent: Friday, March 14, 2003 4:20 PM
Subject: Re: [TowerTalk] Shack ground disconnect?

> I remember hearing a story about some cows sheltering under
> a tree during a thunderstorm. Lightning struck the tree and
> the cows facing towards or away from the tree were electrocuted
> while those broadside to the tree were not. The explanation was
> that, as the charge dissipated through the ground, the cows
> facing toward or away from the tree had their front and rear
> hooves on ground of much different potentials. Those broadside
> has much less difference between left and right side hooves.
>  I would think that a wire connected to a ground rod under these
> conditions would behave much the same. If the equipment in the
> shack had no other current path, nothing would happen as they
> would all rise to the same potential simultaneously. However,
> if there was another path to ground, it could have a vastly
> different potential and sparks would fly.
>  Ask me sometime about the Great Lightning Disaster at the LORAN
> station I commanded. It was caused by the Coast Guard insistance
> on separate ground systems for the transmitter and timing equipment.
> 73, Roger
> _______________________________________________
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