Article View: sci.electronics
Article #19433Re: Lightning rods. Was: Protecting computer equipment
From: barry ornitz
Date: Fri, 15 Jul 1988 14:29
Date: Fri, 15 Jul 1988 14:29
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You really need to read the entire article.
While the tip is protected, the rod will generally be hit several inches to
several feet below the tip unless a better path is found in the vicinity.
The rod will _not_ prevent lightning strikes!
The full reference is: Moore, C. B.: Improved
Configurations of Lightning Rods and Air Terminals, "Journal of the Franklin
Institute," Vol. 315, No. 1, January 1983, pp 61-85, Pergamon Press, Oxford.
My memory was mistaken on Moore's address. He is with the Langmuir Laboratory
of the New Mexico Institute of Mining and Technology.
I was about 75 feet from a large tree hit by lightning once (in a building).
Not only was the tree split, but the root system exploded leaving numerous
furrows in the ground with the major roots exposed. Scary!
73 Barry WA4VZQ
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| ___ ________ |
| | / / | | Dr. Barry L. Ornitz UUCP:...!rochester!kodak!ornitz
| | / / | | Eastman Kodak Company
| |< < K O D A K| | Eastman Chemicals Division Research Laboratories
| | \ \ | | P. O. Box 1972
| |__\ \________| | Kingsport, TN 37662 615/229-4904
| |
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<1988Jul8.045005.17867@utzoo.uucp> <6179@aw.sei.cmu.edu> <1323@kodak.UUCP> <1228@thumper.bellcore.com>Show Full Headers
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Path: arc1-ca.pugleaf.net!utzoo!attcan!uunet!lll-winken!lll-tis!helios.ee.lbl.gov!pasteur!agate!ig!uwmcsd1!mailrus!cornell!rochester!kodak!ornitz From: ornitz@kodak.UUCP (barry ornitz) Newsgroups: sci.electronics Subject: Re: Lightning rods. Was: Protecting computer equipment Summary: Read the full article Keywords: lightning, lightning rods, discharges, protection Message-ID: <1327@kodak.UUCP> Date: 15 Jul 88 14:29:07 GMT References: <1988Jul8.045005.17867@utzoo.uucp> <6179@aw.sei.cmu.edu> <1323@kodak.UUCP> <1228@thumper.bellcore.com> Reply-To: ornitz@kodak.UUCP (barry ornitz) Followup-To: sci.electronics Organization: Eastman Kodak Co, Rochester, NY Lines: 24