[Elecraft] OT: Grounding Question

Don Wilhelm donwilh at embarqmail.com
Wed Apr 25 19:46:01 EDT 2018


Terry,

On your perimeter wire, remember that lightning likes to travel in a 
straight line, so drive a ground rod at every point where the perimeter 
wire makes a turn equal to or greater than 45 degrees.  I would advise 
you to run the wire all around the foundation perimeter.
The purpose of the perimeter wire is to provide a path for lightning so 
it does not punch a hole in your foundation.  The wire does not need to 
be deep, its purpose is to spread the charge over as much of the earth 
as possible.

I will let others expound on the Ufer ground - I have no comment.

73,
Don W3FPR

On 4/25/2018 12:41 PM, Terry Brown wrote:
> I am building a new house. It has a UFER foundation ground. I will be putting ground rods around half the perimeter of the house between my shack and tower.
> 
> No. 4 solid copper wire will connect all my ground rods together and will tie to the UFER ground in two places.
> 


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