IEEE C37.38-1989
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
IEEE Standard for Gas Insulated, Metal-Enclosed Disconnecting, Interrupter, and Grounding Switches
17-10-2023
02-10-1989
1 Scope and references
1.1 Scope
1.2 References
2 Definitions
3 Service conditions
3.1 Usual service conditions
3.2 Other conditions that may affect design and
application
3.3 Unusual service conditions
4 Equipment ratings
4.1 Voltage ratings
4.2 Rated continuous current (amperes rms)
4.3 Temperature limitations
4.4 Load current-carrying capability based on actual
ambient temperature conditions
4.5 Short-time load current carrying capability
4.6 Rated momentary current
4.7 Rated short-time current
4.8 Voltage rise of metallic enclosure
4.9 Gas
4.10 Control voltage
5 Disconnecting switches
5.1 Construction
5.2 Testing of disconnecting switches
5.3 Switch position indication
5.4 Operating mechanisms
5.5 Interlocking
6 Interrupter switches
6.1 Requirements
6.2 Interrupting ratings
7 Grounding switches
7.1 Types of grounding switches and devices
7.2 Testing of grounding switches
7.3 Switch position indication
7.4 Operating mechanisms
7.5 Interlocking
8 Supporting structures
9 Nameplates
9.1 Disconnecting switches
9.2 Interrupter switches
9.3 Maintenance grounding switches
9.4 Fault-closing maintenance grounding switches
9.5 Fault-initiating switches
Table
1 Voltage ratings for gas-insulated, metal-enclosed
disconnecting, interrupter, and grounding switches
at normal operating gas density
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