TM 5-6115-365-15
C2
c.
Grounding.
WARNING
Never operate the generator set until
it
has
been
properly
grounded.
Electrical defects in the load lines or
equipment
can
cause
death
by
electrocution when contact is made
with an underground system.
(1)
The generator set must be grounded prior
to operation. The ground may be any of three methods,
depending on the location and terrain:
(a)
A ground rod driven to a depth of 8
feet.
(b)
An
underground
metallic
water
piping system.
(c)
A metal plate (9 sq. ft.) buried at a
depth of 4 feet.
(2)
The ground lead must be No. 6 AWG
copper wire, bolted or clamped to the rod, plate, or
piping system.
(3)
Connect the other end of the ground lead
to the generator set ground terminal stud and connect
the generator to the ground terminal stud as shown in
figure 18-3.
WARNING
Never operate the generator set in an
enclosed area unless the exhaust
gases are piped to the outside.
Inhalation of exhaust fumes will
result in serious illness or death.
(4)
Be sure the transfer switch load cables
are connected to the generator sets as illustrated in
figure 18-4.
Figure 18-4. Interconnection diagram, transfer switch-to-generators.
18-5
