Jim,
You will see from my installation
http://users.erols.com/n3rr/photos/grounding_pictorial.jpg that I had the
same issue where my Single Point Ground (SPG) entry point into the house was
some 40 feet from the electrical/phone entry point.
I suggest you create a ground-grid using a series of 8 foot ground rods,
spaced 16 feet apart and 8 feet away from the house, and connected to that
galvanized ground rod connected to the electrical/phone. Then connect the
other end of this ground grid to one of the ground rods at the tower. Keep
all ground rods no closer than the sum of the lengths of the rods being
connected together. Since I can only form a mental picture your
installation from your description, I think I have it right. By using a
ground grid as I described, *at the ground rods*, you may "direct" the grid
to any direction necessary. That way, you can route it to the tower which
sounds like it's around the corner of the building from the A/C entry.
If I have interpreted it wrong, let me know. Take a look at my installation
by looking at my Website:
http://users.erols.com/n3rr/lightningprotection/index.htm. Then ask
questions.
73,
Bill, N3RR
-----Original Message-----
From: owner-towertalk@contesting.com
[mailto:owner-towertalk@contesting.com]On Behalf Of Jim Spears
Sent: Monday, July 23, 2001 8:46 PM
To: towertalk@contesting.com
Subject: [TowerTalk] tieing utility and tower grounds together
my planned installation has the tower at the opposite (long) end of the
house from the utility entrance. this is where the power, phone, cable, etc
are all tied together on one galvanized pipe driven who knows how far into
the ground. this area tends to be rocky so I hope that they hit it hard
enough to move the rocks.
given that I should tie together the utility ground point to the tower
ground point, what is the most efficient method when they are separated by
80 or 90 feet of linear distance along the walls, something more like 65
feet straight line. putting the tower near the utility entrance is not an
option due to setback and overhanging trees. with some trouble, I could run
a copper flashing strip along the back of the house then around the corner
up the side.
ideas??? suggestions???
jim
N1NK
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