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S&C 2020 - Interrupter Pressurization Hazard

S&C 2020
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S&C Instruction Sheet 716-504 9
The shipment contains:
Three pole-unit assemblies: each pole-unit contains one stationary support insulator,
one rotating insulating support column and a blade and contact assembly
Three interrupters, mounted to the high-speed base for shipping
A high-speed base, enclosing the high-speed power train
The appropriate number of mounting pedestals:
– Single pedestal is used for circuit-switchers rated 69 kV (with 48-inch phase spacing)
– Two pedestals are used for circuit-switchers rated 69 kV (with 84-inch phase
spacing), 115 kV and 138 kV
A Series 2000 Circuit-Switcher Operator
A container of miscellaneous operating-mechanism components and hardware—all
individually identied
Any optional features or accessories specied, such as a grounding switch
DANGER
DO NOT disassemble or modify the interrupters. The interrupters are pressurized at
75PSIG. Serious personal injury can result.
Storage
NOTICE
Connect control power to the switch operator when storing it outdoors. The switch
operator is equipped with a space heater that must be energized during storage to prevent
condensation and corrosion within the operator enclosure.
If the circuit-switcher must be stored before installation, keep it in a clean, dry, and
corrosion-free area to protect it from damage. Make sure each skid rests rmly on the
ground and is reasonably level. Shoring under the skids may be necessary if the ground is
uneven. If storing outdoors or in a non-climate controlled area, connect control power to
the space heater inside the Series 2000 Switch Operator per the wiring diagram furnished.
Inspect the circuit-switcher regularly when storing for prolonged periods.
NOTICE
Please complete and mail the circuit-switcher registration card (enclosed in a vinyl
envelope located inside the operator) after the circuit-switcher has been installed. The
information requested on this card is vital to ensure prompt notification in the event field
modifications are needed.
Shipping and Handling

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