Relocation is also not always practical nor is it inexpensive. Professional
Electricians don't come cheap and moving an underground service entrance is
very involved and sometimes simply can't be done due to local codes and the
location of the service main.
My house is at the end of a street and the service entrance is opposite my
shack just outside my attached garage opposite the end of the street. I
would hazard a guess and say that maybe $4000 might cover it due to
trenching, new copper entry wire, a new entry panel and all the hardware,
local build fees and inspections, new concrete and landscaping as well as a
new sidewalk and driveway.
A single piece of 4/0 cable run from one end to the other would be cheaper
even with several ground rods and eutectic bonding. Even if you include the
trencher, having the driveway concrete sawed and filled afterwards, new bit
of concrete work to fix the cuts, etc is couldn't cost even half of that.
Speaking of low impedance grounds, a flat sheet of copper with the
equivalent mil volume as a wire will have a much lower impedance. 4" copper
sheet that is .01" thick works wonderful even on mountain top sites. It just
makes attaching it to the ground rods a bit trickier to deal with. ;>)
Michael Baker K7DD
k7dd@cox.net
-----Original Message-----
From: towertalk-bounces@contesting.com
[mailto:towertalk-bounces@contesting.com] On Behalf Of W2RU - Bud Hippisley
Sent: Wednesday, June 16, 2010 3:15 PM
To: Tom Anderson
Cc: w4lde@numail.org; TowerTalk
Subject: Re: [TowerTalk] Shack ground
On Jun 16, 2010, at 5:27 PM, Tom Anderson wrote:
> Most grounding books and articles suggest tying the station ground to the
power company ground, but what do you do if the power company ground is on
the opposite side of the house from the shack?
Relocate the shack, or relocate the service entrance. In my case, we did
the latter....
I also had the telephone entrance relocated so that it came into the house
within a few feet of the power line. All grounds (power, telco, and ham
shack cables) are tied together just outside the shack.
Bud, W2RU
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