PS Magazine - TB 43-PS-599
PS, The Preventative Maintenance Monthly
ISSUE 599
OCTOBER 2002
2.
If no buried object can
be found, use your ground
rods. Drive them in as far as
you can. If you use the 8-ft,
3-section rod, NSN 5975-
00-878-3791, you can use
slide hammer, NSN 5120-
01-013-1676, to drive it in.
If you’re using the 6-ft,
non-sectional rod, you’ll
have to use a sledge ham-
mer to do the job.
If you cannot get the rods deep
enough–below the frost line and to the
water table–install a cluster of shorter rods.
Depending on the number of rods you have,
you should install them around the perime-
ter of your shelter or generator in a triangle
pattern. If you cannot install around the
perimeter, use a star-pattern. The distance
between rods should be 2-4 rod lengths.
PS 599
41
OCT 02
Getting a
Ground in
the cold
Cold means
more soil
resistance
and greater
grounding
impedance.
1.
Try to ground to a buried metal object
like an underground pipe. That will save
you a lot of digging or driving in frozen
ground. However, the metal object has to
be buried at least 2
1
∕
2
feet below the sur-
face; cannot contain, or transfer, gaso-
line or other flammable liquids; must be
all non-coated metal; and you must test
its conductivity before you use it.
If you
do
hook up to a
buried metal object,
make sure you connect
the grounding electrode
conductor to the object
with a solid connection.
A wrap-around or tie-it-
on
won’t
do!
Here are a
few tips that
may help…
Thanks for
keeping my
shelter well-
grounded!
Terminal lug NSN
Rods
Couplings
No. 6 AWG wire
Drive/head stud
Clamp
To us that
translates,
“Grounding
ain’t going to
be easy, but
it’s got to be
done.”
599. 40-41 (C)
8/28/02
3:08 PM
Page 1
Back to TopBack to Top
