[Boatanchors] new Ground system

Fri, 15 Mar 2002 08:04:10 -0600

One of the most impressive "dissapative" lightning protection system was the 
Federal Express Terminal located at Memphis TN.  I got a tour of their 
system years ago.  I guess when you are refueling a plane you want lots of 
protection against a spark.  I am not for sure but the system may have been 
installed by NEA Associates who at the time had a rather controversial 
lightning protection system.

73, Jim, wd4air

>From: Glen Zook <[email protected]>
>To: Gary Schafer <[email protected]>
>CC: "Duane Fischer, W8DBF" <[email protected]>, Arthur Shulman 
><[email protected]>, [email protected], [email protected]
>Subject: Re: [Boatanchors] new Ground system
>Date: Thu, 14 Mar 2002 20:48:16 -0800 (PST)
>
>My tower has NEVER been HIT by lighting.  However,
>there is more to this than just grounding.  You have
>to use dissipation devices as well.  Those can be made
>for under $10 apiece (one is needed for each leg of a
>tower, and if the tower is over 100 feet tall, they
>should be placed from 50 to 75 feet apart up each
>leg).  Or, you can buy them commercially built for
>about $350 apiece!
>
>A dissipation device will not protect a tower 100%
>from a strike (nothing can).  However, they can reduce
>the chances of a strike up to 99.99%.
>
>Glen, K9STH
>
>
>--- Gary Schafer <[email protected]> wrote:
> > Glen,  are you saying that because of your grounding
> > system that your
> > tower has never been hit by lightning? Or that you
> > have never had any
> > damage from a lightning strike.
>
>
>__________________________________________________
>Do You Yahoo!?
>Yahoo! Sports - live college hoops coverage
>http://sports.yahoo.com/
>_______________________________________________
>Boatanchors mailing list
>[email protected]
>http://mailman.qth.net/mailman/listinfo/boatanchors

_________________________________________________________________
MSN Photos is the easiest way to share and print your photos: 
http://photos.msn.com/support/worldwide.aspx