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[TowerTalk] Lightning protection grounding

To: <towertalk@contesting.com>
Subject: [TowerTalk] Lightning protection grounding
From: wa3gin@erols.com (Dave Jordan)
Date: Fri, 16 Apr 1999 08:48:29 -0400
Why can't a person simply run a ground wire from the top section/mast of the
crank-up down along with the coax and terminate the wire to the ground
system at the base?
===================

Bob Wanderer wrote:

> The conductor running down the inside of the tower
> to ground is unnecessary. It carries maybe 10~15%
> of the total current.
>
> However, there is higher resistance between
> two sections of a crankup which could benefit from
> straping the two sectiuons with copper strap. The problem
> is then how do you crank the tower down? If you make the
> straps long enough to allow crank down, they will flap in the
> wind. Making them short jumpers obviates the convenience
> of the crankup. I guess you have to decide which situation
> is the more tolerable.
>
> 73,
> Bob AA0CY
>
> ----------
> From:  David Leikis[SMTP:dlleikis@deseretonline.com]
> Sent:  Sunday, April 11, 1999 9:40 PM
> To:  towertalk
> Subject:  [TowerTalk] Lightning protection grounding
>
> Hello,
>
> I have seen many recent postings concerning grounding methods and saw
> one that stated to run a ground conductor up the mast to the final
> section (and the others as well) to prevent any high resistance points
> along the way through the joints.
>
> My question is this:  I am erecting a self-supporting crankup and am
> concerned about the sliding joints of the installation.  It seems as
> though these would definitely be high resistance and would need this
> more than any other.  What is a recommended method from those that may
> have done this before?  We can have some pretty severe storms here and I
> am positive (or negative)  that lightning charge dissipation should be
> 'high' on my list.
>
> Dave KG7EW
>
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