Installation
20 S&C Instruction Sheet 716-500
Connecting Conductors
STEP 19.
DANGER
Conductors must be de-energized and grounded in
accordance with standard system operating practice.
Failure to do so can result in serious injury or death.
Attach the high-voltage conductors to their respective circuit-
switcher terminal pads using exible-conductor connections.
Observe the terminal-pad loading limits specied on the
catalog drawing. Use the following procedure for attachment:
(a) Thoroughly wire-brush the current-transfer
surfaces of each connector and immediately apply
a liberal coating of Penetrox® A (available from
Burndy Corporation) or other suitable aluminum
connector compound to the brushed surfaces.
(b) Wire-brush each circuit-switcher terminal pad and
apply a coating of Penetrox A, and then bolt the
connectors to the terminal pads.
(c) Prepare the conductors using established proce-
dures and clamp them in their respective connec-
tors.
Remove the Interrupter Containers
STEP 20. Remove the container from each interrupter as
follows:
(a) Remove and discard the ⅜-16 zinc-plated serrated
hex nuts that run the length of the container.
(b) Remove and discard the two ⅜-16 × 1 and two
⅜-16× ⅞ zinc-plated hex-head cap screws and at
washers that attach the two container-halves to the
coupling end casting of the interrupter.
(c) Remove and discard the two ⅜-16 × 1 and one
⅜-16× ⅞ zinc-plated hex-head cap screws and at
washers that attach one of the container halves to
the indicator end casting of the interrupter. Do not
remove the remaining ⅜-16 × ⅞ cap screw—it’s
needed to temporarily retain the other container-
half.
(d) Pry the container halves apart with a screwdriver.
One of the container-halves can now be removed
and discarded—slotted holes are provided so a
rope or lifting sling can be attached and the
container safely lowered to the ground.
(e) Remove and discard the remaining ⅜-16× ⅞ hex-
head cap screw and at washer that attach the
other container half. Then discard this container
half.
(f) Finally, remove and discard the foam-core inner
liner wrapped around the interrupter.
STEP 21. Remove and discard the wrappers from each
insulating support column.
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