Grounding the Control
The control cabinet must be grounded. A grounding con-
nector on the underside of the cabinet will accommodate
No. 14 solid through No. 4 stranded conductors.
Suggested methods for grounding the control and
recloser are shown in Figures 30, 31, and 32.
Figure 30 illustrates grounding methods for 3-wire
ungrounded and 4-wire multi-grounded systems with local
supply voltage transformer.
Figure 31 illustrates grounding methods for 3-wire
ungrounded and 4-wire multi-grounded systems with
remote supply voltage transformer.
Figure 32 illustrates grounding on a 3-wire uni-grounded
system.
For effective surge protection all control and power con-
ductors for the Form 5/Triple-Single control must be
routed parallel to a corresponding ground path. For exam-
ple, the AC power supply for the control should be paral-
lel to and equal in length to the transformer ground path.
The control cable should be parallel to and routed close to
the recloser ground path.
S280-42-3
33
WARNING: Hazardous voltage. Recloser and
control must be solidly grounded. Follow all
locally approved procedures and safety practices when
grounding this equipment. Improper grounding can
result in contact with high voltage, which will cause
death or severe personal injury. G115.1
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