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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
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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
IEEE C37.20.9a-2024
$30.33