November 27, 2023
© S&C Electric Company 1976-2023, all rights reserved
Instruction Sheet 711-590
Mark V Circuit-Switchers
Outdoor Transmission (34.5 kV through 345 kV)
Inspection Recommendations
Table of Contents
Introduction � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 2
Qualified Persons � � � � � � � � � � � � � � � � � � � � � � � � � � � 2
Read this Instruction Sheet � � � � � � � � � � � � � � � � � � � 2
Retain this Instruction Sheet� � � � � � � � � � � � � � � � � � � 2
Proper Application � � � � � � � � � � � � � � � � � � � � � � � � � � 2
Special Warranty Provisions � � � � � � � � � � � � � � � � � � � 3
Warranty Qualifications � � � � � � � � � � � � � � � � � � � � � � 3
Safety Information � � � � � � � � � � � � � � � � � � � � � � � � 4
Understanding Safety-Alert Messages � � � � � � � � � � � 4
Following Safety Instructions � � � � � � � � � � � � � � � � � � 4
Replacement Instructions andLabels � � � � � � � � � � � 4
Safety Precautions � � � � � � � � � � � � � � � � � � � � � � � 5
Inspection Recommendations � � � � � � � � � � � � � � 6
Before Starting � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 6
Recommended Inspection Schedule � � � � � � � � � � � 6
Recommended Inspection Procedures � � � � � � � � � � 9
Resistance Values � � � � � � � � � � � � � � � � � � � � � � � � � �10