24 S&C Instruction Sheet 761-507
Operation
Opening and Closing the Switch
DANGER
The interrupters and terminal pads of the Alduti-
Rupter Switch may be energized with the interrupters
in any position. Before inspecting, servicing, or repair-
ing this switch or working on the conductors on either
side of the switch, test for voltage using proper
high-voltage test equipment. Then, install suitable
grounding equipment. Failure to observe these pre-
cautions may result in serious injury or death.
NOTICE
This interrupter switch is not intended for breaking
fault currents.
STEP 28. Remove the padlock from the locking bar on the
operating handle assembly. Withdraw the
locking bar. See Figure 38.
(a) If the operating handle assembly is fur nished
with a key interlock, disengage the interlock bolt.
(b) Swing the handle rapidly to the fully Open or
fully Closed position. See Figure 39.
(c) Always check that all three poles are fully open
or fully closed.
(d) Replace the locking bar and the padlock. Engage
the key interlock, if applicable.
CAUTION
When opening or closing the switch, do
not slow down or stop part way. Arcing can
occur if the switch is partially open or par-
tially closed.
Figure 38. Withdrawing the locking bar and disengaging the
key interlock bolt.
Figure 39. Swinging the operating handle rapidly.
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