On 10/24/14, 3:56 AM, john@kk9a.com wrote:
That depends on your soil conditions. Some of us have shale, rock and/or
hard clay making it impossible to push in a full 8' ground rod.
From: Hans Hammarquist via TowerTalk <towertalk@contesting.com>
What would work if you bury it deep enough. I would believe 8 feet of strap
buried 4 feet down should be equal to an 8 foot rod pushed down 8 feet.
I do think it is less work to push the rod down than to dig a trench for the
strap.
-----Original Message-----
From: Drax Felton <draxfelton@gmail.com>
What if one were not to use a ground rod and just bury the strap?
The code allows you to drive the rod at an angle.
From an electrical standpoint, you don't need to bury the strap 8 feet
down.
IEEE 142-1999 Table 13 has formulas for all kinds of configurations of
rods, wires, straps and the like. there's a new version from 2007 out.
If I get ambitious, I'll put some of the equations online, but they're
long series expansions, so a bit tedious.
Anybody have a preference.. as matlab/octave/fortran/c equations or as
Excel Spreadsheet formulas?
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