[time-nuts] Thoughts on lightning protection measures....
lists at rtty.us
Thu Apr 12 14:22:35 UTC 2012
Is your house hit multiple times per year now? If so, I'd suggest that's the
issue that needs to be solved. If not, then mount the antenna lower than the
peak of the house and move on.
From: time-nuts-bounces at febo.com [mailto:time-nuts-bounces at febo.com] On
Behalf Of Azelio Boriani
Sent: Thursday, April 12, 2012 10:04 AM
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] Thoughts on lightning protection measures....
I have 2 TBolts but now I'm thinking to buy others to save them from the
On Thu, Apr 12, 2012 at 3:58 PM, Jim Lux <jimlux at earthlink.net> wrote:
> On 4/12/12 6:22 AM, Michael Baker wrote:
>> Around here (N. Central Flori-DUH) it is not uncommon for
>> near-by lightning strikes to damage underground cables and
>> wiring. This is why buried wiring to things like driveway
>> gate-openers are often placed in conduit rather than done
>> with direct-burial wiring so that if lightning damages the
>> wiring a new cable can be pulled through the conduit without
>> having to re-dig the burial trench.
>> Some years ago I had occasion to hold some long discussions
>> with Martin Uman, one of the worlds most distinguished and
>> eminent lightning researchers. He commented that even with
>> the most extraordinary and costly efforts to install protection
>> measures, that-- sooner or later-- there was a good chance that
>> lightning would find a way to damage things.
> Dr. Uman (and his colleague Dr. Rakov) probably know about lightning and
> effects than any other humans alive. He's making an excellent point: at
> some point, the cost to replace the gear (or the cost of being "off the
> air") is smaller than the cost of the protection scheme.
> Sometimes, you're better off having a sacrificial element, and a spare in
> the closet for speedy repair.
> His lightning research laboratory was located here in
>> N.Central Florida because it is in the heart of the most
>> dense strike area in N. America.
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