[TowerTalk] Lightnig Arrestors at tower base or house entrance?

[Gene Smar]

Jim et al:


----- Original Message ----- 
From: "Jim Lux" <jimlux at earthlink.net>
To: "K4SAV" <RadioIR at charter.net>
Cc: <towertalk at contesting.com>
Sent: Tuesday, February 26, 2008 2:11 PM
Subject: Re: [TowerTalk] Lightnig Arrestors at tower base or house entrance?



>
> Maybe all this guestimation is totally out of the ballpark.
> I know that if I were doing it, I'd probably just put grounded bulkhead
> connectors at the base, if only for convenience.  But, I'd be interested
> if someone can point to an actual analysis or measurement of the system.
>
> Jim, W6RMK

     In the early chapters of his book <The Grounds for Lightning 
Protection>, Roger Block delves into a bit of the math to calculate voltage 
rise due to lightning strikes on towers.  You know, el dee aye dee tee 
stuff.  The entire book is a worthwhile read for us tower owners especially.

     Also on the Polyphaser web pages you can find these white papers on 
lightning protection theory and practice: 
http://www.polyphaser.com/technical_notes.aspx .

73 de
Gene Smar  AD3F