|To:||Frank Donovan <firstname.lastname@example.org>|
|Subject:||Re: [TowerTalk] There's 'ground', and then there's 'ground'|
|From:||Gary Schafer <email@example.com>|
|Date:||Sun, 16 Jan 2005 13:18:10 -0500|
I wouldn't put too much credence in the site that you reference. That
guy spouts out a lot of mis-information about lightning protection. Most
of the references are ok but some are suspect. I have had many
conversations with him. He seems to read lots of stuff and doesn't quite
understand how to interpret it for a given situation.|
As to using braid for grounding, there is nothing wrong with it if it is not corroded and it is indoors. Outside it will corrode and the resistance/ inductance will increase. And worse, when it is corroded you can't clean it properly to make a new connection when it needs to be repaired.
When it corrodes you loose the connection between wires and it becomes a series of crooked individual wires which have a longer length than the sum when everything is shorted to the next.
For high frequency RF braid may not be the best. But it is regularly used in rf gaskets in many applications.
Lighting energy is concentrated from DC to around 1 mhz. There are components that do go into the vhf range but most of the energy is in the dc to 1 mhz range.
73 Gary K4FMX
Frank Donovan wrote:
Here's a clarification, pointed out by an attentive towertalkian:
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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