[BC] Re: Static-Cat

[Bruce Doerle]

Tim,
 
If you go back and read the archives of January 2005 of Radio-Tech and
May 2005 of the Broadcast list-servers, you can get a pretty good idea
of the disparate views on this type of apparatus.  These devices fall
into what is called Charge Dissipation devices.  None of these devices
are approved by any professional organization that is directly involved
in lightning protection (IEEE or NFPA).  They have been turned down as
providing no effective protection.  There are a lot of gimmicks used to
demonstrate their so-called effectiveness; I won't believe them.  They
are designed to impress the unknowing.  There are a number of websites
which discuss the weakness of various lightning protection devices. 
Here are a few:   

http://www.lightningsafety.com/nlsi_lhm/Uman_Rakov.pdf
 
http://www.lightningsafety.com/nlsi_lhm/magic.pdf
 
http://www.electricity-today.com/download/issue2_2004.pdf
 
http://bellsouthpwp.net/B/r/BroadCastDesign/lightning/hartono
2000[1].pdf
 
http://lightning-protection-institute.com/fact-fallacy.htm
 
http://www.lightningsafety.com/nlsi_lhm.html
 
http://www.polyphaser.com/datasheets/PEN1021.pdf
 
http://lightning-protection-institute.com/index.htm
 
http://www.lightning.nmt.edu
 
http://www.lightning.ece.ufl.edu/
 
http://www.iclp-centre.org
 
(I hope all the links are still good.)
 
The only really effective way to protect your systems is through a
solid low impedance ground system and a single-point ground at an access
point into your facility with appropriate lightning protection devices
connected to that single-point ground on all circuits entering the
facility.  Somebody's comment about the cell installers having it right
is very true.  BTW, I have never seen them using any charge dissipation
device either on a cell only tower.
 
That's my two cents and I really don't want to get into extensive
discussion as happened last year,
 
Bruce
 

>>> lightcom at ameritech.net 06/22/06 4:47 PM >>>

Hi Everyone,

    What seems to be the general consensus on the effectivness of the 
Static-Cat lightning system, Is it hocus-pocus or have some of you guys
had 
good results..and what are the caveats you've found. I have clients
that 
have the system and swear by it...and others who think its all garbage

science. Clients of mine that have the system seem to experience less 
trouble due to indirect strikes damaging sensetive equipment...and I
have 
not been directly involved with the systems installation myself. Ive
only 
come across them when aquiring a station for contract work... Thoughts
of 
the brain trust?

Thanks Guys (and perhaps Gals)

www.lightningcom.com
Timothy Volckmann -- Owner
Lightning Communications Co.
Broadcast Technical Services
Live Theatre -- Sound Systems
Telecom Systems
Computer Systems -- Networking
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147 Hendricks St.  Michigan City, IN 46360
Business: 219-878-1807
FAX: 219-878-9107
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