|To:||Jim Lux <email@example.com>|
|Subject:||Re: [TowerTalk] Different lightning ground question.|
|From:||Gary Schafer <firstname.lastname@example.org>|
|Date:||Mon, 17 Jan 2005 19:02:21 -0500|
Jim Lux wrote:
----- Original Message ----- From: "Dudley Chapman" <email@example.com> To: <firstname.lastname@example.org> Sent: Monday, January 17, 2005 11:17 AM Subject: [TowerTalk] Different lightning ground question.
There is not much difference in effectiveness for different amounts of surface area for ground rods. It is the length that counts.
As far as differences in buried horizontal wires verses driven ground rods, there are two reasons to drive rods:
First, there is better contact with a rod driven into undisturbed soil than what you get by digging a hole and back filling it with a rod planted in it. Same of course is true for burying horizontally. The soil has been disturbed.
Second, when a rod is driven it gets down to where there is more moisture than if it is buried in a rather shallow trench.
Burying radials is ok if you can not drive a rod in.
It is also good to bury interconnecting leads between ground rods. It gives more connection to the soil.
73 Gary k4FMX
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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