[TowerTalk] Utility GND / Tower GND interconnection question

[Wilson Lui]

If the transient current is in the soil (lower potential) then it will not
arc into the building (higher potential).

Wilson Lui

ATI Tectoniks
wilsonlui at atitec.com

-----Original Message-----
From: towertalk-bounces at contesting.com
[mailto:towertalk-bounces at contesting.com] On Behalf Of Jim Brown
Sent: Sunday, May 30, 2004 7:14 PM
To: Tower Talk List
Subject: RE: [TowerTalk] Utility GND / Tower GND interconnection question

If it were only that simple!  Lighting will go where it wants to go. If you
route the 
cables around the house, it's more inductance, which makes lightning more 
likely to arc through the house.  

Remember that the primary function of lighting protection is to discharge
the  
buildup of charge so that it is likely to arc and get destructive. 

Note that I didn't suggest routing the strap through the house, but in the
earth 
under the house. In other words, the most direct path. 

Jim

On Sun, 30 May 2004 17:54:35 -0500, Paul N.Henning wrote:

>Consider an extremely high current surge running through that strap and
>inducing a nice voltage into everything near it including electrical
>wiring in the house, pets, and people in the basement , plumbing. By all
>means tie the utility ground to the perimeter ground system of the house
>and the perimeter ground to your station SPG but keep the surge out of
>the house including underneath the house. 


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