question about surge protectors

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bayfire300
Posts: 348
Joined: Tue May 17, 2005 5:19 pm

question about surge protectors

Post by bayfire300 »

hello,
i built a gmrs repeater and i have a polyphaser surge protector on it, are they a 1 time use?
if lightning hits my antenna do i need to replace the protector or are they like a resetable circuit breaker?

thanks
otto
thebigphish
Posts: 1477
Joined: Sat Nov 29, 2003 10:10 pm
What radios do you own?: AM/FM

Re: question about surge protectors

Post by thebigphish »

IIRC they are multiple strike, however they should be changed with regularity. Our (quite ancient) service contracts require our vendors to change them annually (for an ancient/per unit price :-)) so we make out rather well!
"How do you plan to outwit Death?"
"With a knight and bishop combination; I will destroy his flank.
" --Antonious Block
bob11746
New User
Posts: 3
Joined: Sun Apr 06, 2008 10:06 am

Re: question about surge protectors

Post by bob11746 »

Bayfire,
If you have one of those 5000A gas tube arrestors, please don't get the impression that it will protect anything; It's there stricty to keep your house from burning down. These arrestors convey a false sense of protection. A direct hit can produce upwards of 100,000A. A positve stroke can go a high as 200,000A. They are really designed for near hits, not direct hits. (from a principal of Lightning Technologies).

Bob
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