On 1/4/2011 10:19 PM, firstname.lastname@example.org wrote:
> 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.
Our 150' well is just slightly out of line between the tower and service
entrance ground. Probably about 60' from each.
The tower and service entrance grounds are tied together with a total of
33 ground rods for the station system grounding and two for the service
We've never had a problem with the well. However about 6 years ago the
city ran city water out here so we no longer use the well. I should
have kept it operational just for backup.
> John KK9A
> To: Cqtestk4xs@aol.com
> Subject: Re: [TowerTalk] ground rods and wells
> From: jimlux<email@example.com>
> Date: Tue, 04 Jan 2011 07:10:41 -0800
> 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
> 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
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