IEEE C37.20.9a-2024
$30.33
IEEE Standard for Metal-Enclosed Switchgear Rated 1 kV to 52 kV Incorporating Gas Insulating Systems Amendment 1: Clarification of Metal-Enclosed Gas-Insulated Switchgear (MEGIS) Types Covered, Refilling and Monitoring Requirements, and Production Test Requirements (Published)
| Published By | Publication Date | Number of Pages |
| IEEE | 2024 |
Amendment Standard – Active. Metal-enclosed switchgear assemblies incorporating gas insulating systems containing, but not limited to, such devices as interrupter switches; selector switches; fuses; circuit breakers; control, instrumentation, and metering devices; and protective equipment are covered in this standard. Equipment for the control and protection of apparatus used for distribution of electrical power is also included, but not specifically limited to, in this standard.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 1 | IEEE Std C37.20.9a™-2024 Front Cover |
| 2 | Title page |
| 4 | Important Notices and Disclaimers Concerning IEEE Standards Documents |
| 8 | Participants |
| 10 | Introduction |
| 11 | Contents |
| 13 | 1. Scope 3. Definitions |
| 14 | 6. Design and construction 6.1 Buses, primary connections, and other components 6.4 Miscellaneous |
| 15 | 6.14 Requirements for gas compartments |
| 16 | 7. Design (type) tests 7.2 Ambient air conditions during tests 7.5 Continuous current (temperature-rise) tests |
| 17 | 7.6 Short-time withstand current and peak withstand current tests |
| 19 | 8. Production (routine) tests 8.3 Inspection and dielectric test on auxiliary and control circuits 9. Field tests 9.1 General 9.2 Dielectric tests |
| 20 | 9.3 Leakage tests |
| 21 | Back Cover |
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