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G3ZJO > TECH 10.01.05 00:39l 45 Lines 1430 Bytes #-7647 (0) @ WW
BID : 540371G3ZJO
Read: GUEST
Subj: Re: Lightning protection
Path: DB0FHN<DB0RGB<OK0PPL<DB0RES<F6GGY<ON4HU<ON4HU<GB7YFS<GB7KHW<GB7COV<
GB7COV
Sent: 050109/1742Z @:GB7COV.#29.GBR.EU #:10080 [Coventry] $:540371G3ZJO
>From g3zjo%gb7cov.#29.gbr.eu@on4hu.ampr.org Mon Jan 10 00:41:32 2005
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>From: g3zjo@gb7cov.#29.gbr.eu
From: G3ZJO@GB7COV.#29.GBR.EU
To : TECH@WW
Frank ZS/PA3GMP started this one with :-
> If anyone has experience with, or expertise on, surge protection and
> methods to do it properly, I'd be most grateful for a few pointers into the
> right direction!
Re Lighting:-
I consider for protection, as far as the Ham station goes, disconnect all
equipment from antenna's and connect antenna's to earth. Thus preventing a
PD from building up on the antenna's.
> unless local sections of the mains
> or phone network get a direct hit somehow, lightning damage isn't common.
Sure thing, if you do get a strike there is not a lot you can do. I have
seen Rawlplugs, holding an extesion bell, ripped from brick walls.
Ceramic resistors in a power supply that have been moulten, dripped and
burned through the floorboards.
A 15mm hole burned through the wooden cabinet of a television as a strike
found its way to one side of the mains via the telphone on top of the set.
I am only glad I was not in the way on any of these occasions.
73 - Eddie, G3ZJO @ GB7COV
Message timed: 17:41 on 2005-Jan-09
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Poor Spellers of the World untie
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