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RE: [TowerTalk] spider balls

To: "'TowerTalk'" <towertalk@contesting.com>
Subject: RE: [TowerTalk] spider balls
From: "Keith Dutson" <kjdutson@earthlink.net>
Reply-to: keith@dutson.net
Date: Wed, 28 Jul 2004 13:54:19 -0500
List-post: <mailto:towertalk@contesting.com>
There is little doubt that porcupines will help bleed off static charges
better than nothing at all.  However, a lightning strike has little to do
with static charge bleed off.  Instead, a strike is the result of the
buildup of a huge potential in rapid succession (a matter of seconds in many
cases).  Assume that a bolt of lightning originates from a height of 1000
feet and is going to ground rather than horizontal within the cloud.  Also
assume the potential must be about 20KV to jump an inch.  The 1000 foot arc
would require a minimum potential of approximately 240 million volts
(1K*12*20K).  Can you imagine what would happen if the little porcupine ball
were to bleed off just 10 percent of this potential to avoid a strike?  Can
you say vaporization? <grin>

Keith

-----Original Message-----
From: towertalk-bounces@contesting.com
[mailto:towertalk-bounces@contesting.com] On Behalf Of Chuck Dietz W5PR
Sent: Wednesday, July 28, 2004 12:29 PM
To: 'Towertalk Reflector'
Subject: RE: [TowerTalk] spider balls

If you have ever heard the static buildup on big antennas when a storm is
nearby, it will make you a believer that the porcupines might work.  I have
no empirical evidence, but how can it HURT???

Chuck W5PR


_______________________________________________

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.

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_______________________________________________

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.

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http://lists.contesting.com/mailman/listinfo/towertalk

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