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Re: [TowerTalk] Whole house surge protectors

To: "towertalk@contesting.com" <towertalk@contesting.com>
Subject: Re: [TowerTalk] Whole house surge protectors
From: "Jim Brown" <jim@audiosystemsgroup.com>
Date: Thu, 29 Sep 2005 23:42:01 -0500
List-post: <mailto:towertalk@contesting.com>
On Fri, 30 Sep 2005 03:28:27 +0000, Rob Atkinson, K5UJ wrote:

>it does not use MOVs.  I wish 
>they made one for the panel for > 20 A service.  see 
www.pricewheeler.com

Yes. This product is based on (and licenses) the same patent as 
the SurgeX. The Brick Wall product is made for the home market, 
while the SurgeX product is made for the pro audio market, and is 
tested to higher standards. See www.surgex.com  

These are both series-mode protectors -- that is, rather than 
attempting to short the spike to ground (and pollute the ground), 
they store the charge in a series reactive network, then gradually 
discharge it back onto the line through a long time constant. The 
reason that units for >20A are not made (yet) is that it is rather 
impractical to build them with the much larger reactive elements 
needed to handle more current. 

Full disclosure -- I've used the SurgeX products in my home, 
office, and ham station for about 5 years, and specify them for 
all the pro audio systems I design. (I don't work on commission, 
and am paid only for my advice, design, and spec writing). I also 
do tech writing. About a year ago, SurgeX approached me to write a 
Power and Grounding applications note, and they paid me for it. 
Less than 5% of it is about surge suppression. What they paid me 
is about half what I paid them for the suppressor's I've bought 
from them. :) 

Jim Brown  K9YC


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Stations", and lot's more.  Call Toll Free, 1-800-333-9041 with any questions 
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