Is the pump wiring bonded to the top of the casting? Perhaps doing so with
MOVs would minimize lightning damage? The well at my previous QTH was 350
feet from the tower and never suffered any failures do to lightning strikes.
Unfortunately it's not always possible to keep towers and wells far apart.
John KK9A
To: Cqtestk4xs@aol.com
Subject: Re: [TowerTalk] ground rods and wells
From: jimlux <jimlux@earthlink.net>
Date: Tue, 04 Jan 2011 07:10:41 -0800
List-post: <towertalk@contesting.com">mailto:towertalk@contesting.com>
Cqtestk4xs@aol.com wrote:
>
> In a message dated 1/4/2011 7:24:43 AM Greenwich Standard Time,
> K8RI-on-TowerTalk@tm.net writes:
>
> I say the well casing is a bad idea as many wells have submersible pumps
> which are easily damaged by lightning strikes the local electricians
> tell me and it does sound plausible.
>
Those submersible pumps are
> expensive to replace and a 165 foot 4 inch casing makes a great path for
> lightning.
>
I wonder what the actual fault path was? Assume for a minute that the
pump wiring were bonded to the top of the casing. If lightning hits,
everything should rise and fall together? or maybe not.. differential
current flows in the power wires and the casing, so there's a potential
difference?
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