S&C Mark V - Page 4

S&C Circuit-Switchers - Mark V Integer Style
Outdoor Transmission I 34.5 kv through 69 kv
1 INTRODUCTION - Continued I
insulator-column deflection. The weight of the bus plus
any associated ice load exerts
a vertical force on the
Circuit-Switcher terminal pads. This vertical force must
not exceed
400 pounds on either terminal pad.
Seismic Withstand Capability
S&C Mark V Circuit-Switchers, when installed with the
recommended S&C Mounting Pedestals and anchor
bolts, are capable of withstanding seismic loading of
0.2 ground acceleration in any direction, as well as
performing as intended during such loading and
afterward. Higher seismic withstand capabilities can
be furnished on special application.
Inspection Schedule and Procedures
To assure Circuit-Switcher's continued proper perform-
ance, it should be inspected in accordance with
S&C's
recommended schedule and procedures contained in
S&C Instruction Sheet
711-590.
Should the user wish to perform elective exercising
of the complete Circuit-Switcher installation-includ-
ing the shunt-trip device, when this option
is fur-
nished-it may be accomplished without the need
for
opening the high-voltage circuit, by equipping the
Circuit-Switcher with the optional stick-operated
bypass accessory (Circuit-Switcher Catalog Number
Suffix "-Bl"). Even
if the bypass accessory has not been
furnished, the Type CS-1A Switch Operator may be
conveniently decoupled from the Circuit-Switcher,
thereby permitting elective exercising of the operator
at any time without requiring an outage or switching
to an alternate source; when the switch operator
is
in the decoupled position, the shunt-trip device-when
this option is furnished-is rendered inoperative,
thereby permitting checkout of the system protective
scheme.
7 1 1 400 INSTRUCTION SHEET
Page 4 of 12 S&C ELECTRIC COMPANY 0 Chicago
December 16,1991 S&C ELECTRIC CANADA LTD.
0 Toronto