PS Magazine - TB 43-PS-599
PS, The Preventative Maintenance Monthly
ISSUE 599
OCTOBER 2002
PS 599
PS 599
OCT 02
42
3.
Another option is to bury the rods
horizontally. Dig a trench at least 2
1
∕
2
feet
deep. Install the ground rod horizontally
or put at least 10 feet of copper 2 AWG
bare wire in the trench.
4.
It is very important in cold weath-
er to bond equipment and shelters
located within arms length of each
other to eliminate any hazardous
voltage that may develop between
them. If the equipment is not bond-
ed, that voltage can use you as the
conductor if you touch both pieces
of equipment at the same time.
Shelter bonding
should be done by either
running a bonding strap of
at least 6 AWG between the
two shelters’ grounding
terminals or between the
two ground rods provided
for each shelter.
Pour a mixture of water
and salt into the trench
before
backfilling it to
increase soil conductivity.
Trench at least
2
1
∕
2
feet deep?
5.
Regardless of
the weather, there
are some grounding
fundamentals that
you should
always
follow…
Order a copy of
the
Earth Ground
and Bonding
Pamphlet published
by CECOM. Call DSN
992-0084 or (732)
532-0084.
—The grounding electrode conductor
should be as large as possible, at
least 6 AWG. The conductor should
be copper.
—Run the conductor as straight and
as short as possible in a downward
direction. Do not run the conductor
up and over obstacles.
—Minimize any twists, loops or
sharp bends and remove all knots
from the conductor.
—Make sure the bonding surfaces are
free of paint, corrosion, grease or dirt.
—Think safety
when installing
ground rods.
Wear goggles
and gloves.
—Never twist or tie a ground wire
around a ground rod. Use the bolt
or clamp. If there is no bolt, then
24 tightly wound turns of stripped
telephone wire or other bare wire
should hold the strap in place. This
is a temporary measure only. Get a
clamp when you can.
Don’t
damage the
threads,
fella!
Make sure
the connection
point is not
corroded and
the connector
is not loose.
599. 42-43 (C)
8/26/02
10:50 AM
Page 1
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