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Call up NASA lightning research, University Of Florida Lightning
Research Center and lightning rods, on the search engine of your choice,
to find info on porcupine lightning rods. Also the Wireman and
Polyphaser have literature available. NASA and most telephone and power
companies use the porcupine lightning rods here in Florida. All the
latest cutting edge lightning research is done here in Florida.
Lightning rods attract lightning, as all small diameter pointy grounded
metal objects have a difficult time draining excess electrical charge
buildup, allowing a leader charge to move skyward, versus the much
larger surface area of a porcupine. Basically it's an interface
resistance thing.
73 to all, Thom KN4LF.
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From: "Brian Smithson" <brian_smithson@vds.com>
To: <towertalk@contesting.com>
Subject: [TowerTalk] Lightning 'porcupines' & rods
To: <towertalk@contesting.com>
Date: Wed, 18 Aug 1999 08:14:07 -0400
Message-ID: <000301bee973$2b6bd2b0$730516ac@brians>
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I've seen several posts in the past praising the virtues
of 'porcupines' to 'drain off charge' before a strike can
occur. I've also seen at least as many claim it is all
bunk. I must admit it seems reasonable, but not if a
lightning rod 'attracts' strikes. I have no background
here - just a software guy! Does anyone know where
I can find out about any studies, etc. to what the
scoop is?
-Brian n8wrl
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