S&C Instruction Sheet 761-505
29
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 repairing 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
precautions may result in serious injury or death.
NOTICE
This interrupter switch is not intended for breaking
fault currents.
STEP 26.
Remove the padlock from the locking bar on the
operating handle assembly. Withdraw the
locking bar. See Figure 39.
(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 40.
(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 39. Withdrawing the locking bar and disengaging the
key interlock bolt.
Figure 40. Swinging the operating handle rapidly.
