[Elecraft] Ground Rods
Mel Farrer
farrerfolks at yahoo.com
Mon Sep 10 19:56:19 EDT 2012
Yes, interesting subject. I did a different approach with the new house. The main drain line for the roof water had to be in a trench and because of the elevation, it had to be DEEP so when the drain lines were put in I included two separate #4 copper lines. Total feet 200+.
All station grounds are with copper strap from a common point in the basement to the operating position. Up 10 feet. All else is locally grounded with rods as necessary.
I only point this out for those who are building a new home. THINK RADIO.
Cheers,
Mel K6KBE
--- On Mon, 9/10/12, VE3GNO Daniel <yo3gjc at yahoo.com> wrote:
From: VE3GNO Daniel <yo3gjc at yahoo.com>
Subject: Re: [Elecraft] Ground Rods
To: "Gary Gregory" <garyvk4fd at gmail.com>, "Elecraft" <elecraft at mailman.qth.net>
Date: Monday, September 10, 2012, 4:18 PM
Hi Gary,
Interesting discussion. Depends on what type of
soil, but as a general rule for lightning is much better with multiple rods
deep into dirt (9ft +) with spacing distance between rods equal or bigger than
the rod length. I've seen grounding installed close around a concrete structure cracking
the concrete base on a direct hit. Many hams are literally pushing a 3ft rod
into dirt, inefficient, my opinion is to prepare the grounding before and salt
it periodically. Here is a good document, is a must to be read for the ones
with lightning activity.
http://members.rennlist.org/warren/ground.pdf
vy73 de VE3GNO Daniel
________________________________
From: Gary Gregory <garyvk4fd at gmail.com>
To: Elecraft <elecraft at mailman.qth.net>
Sent: Monday, September 10, 2012 6:30:52 PM
Subject: [Elecraft] Ground Rods
*Interesting discussion locally here in VK.
Is there any advantage in having the Copper ground rod surrounded by
concrete over having the rod driven 6 feet straight into the earth?
Hope this doesn't get too far off topic or develop into a prolonged
discussion but I realised I didn't know the answer if there is one.
73
*
--
*Gary*
*Start the day off slow, then taper off.........*
K3 #679
KPA500FT #18
KAT500FT 007
P3 #1629
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