IEEE C37.20.4-2013
IEEE Standard for Indoor AC Switches (1 kV to 38 kV) for Use in Metal-Enclosed Switchgear - Redline
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About This Item
IEEE C37.20.4-2013 is a redline technical standard for indoor AC switches rated from 1 kV to 38 kV for use in metal-enclosed switchgear. It focuses on the design and performance expectations that matter for medium-voltage switching equipment, including electrical ratings, insulation-related considerations, and construction consistency. For engineers, specifiers, and procurement teams, this document helps define a clearer reference point for comparing equipment and checking compliance in power and energy applications.
About IEEE C37.20.4-2013
This standard addresses indoor alternating-current switches intended for metal-enclosed switchgear applications across the 1 kV to 38 kV range. As a redline edition, IEEE C37.20.4-2013 is especially useful when reviewing changes between versions and understanding how requirements have been updated. Its technical context sits within power systems equipment, with attention to components, dielectric performance, and material-related considerations that influence safe and reliable switch operation.
Where is IEEE C37.20.4-2013 used?
IEEE C37.20.4-2013 is commonly used in the specification and evaluation of indoor medium-voltage switchgear assemblies, especially where AC switching devices are installed inside metal-enclosed equipment. It is relevant to utility substations, industrial power distribution, and large facility electrical systems that rely on controlled switching at voltages above low-voltage service levels. The standard also supports engineering workflows for equipment selection, design review, and documentation of switchgear-related requirements.
Importance in practice
In practice, this standard helps align design, testing, and procurement around a shared technical baseline for indoor AC switches. That can reduce risk when comparing products, reviewing ratings, and verifying suitability for switchgear installations. IEEE C37.20.4-2013 also supports consistency in how insulation, construction, and performance expectations are interpreted, which is important for safety and long-term equipment reliability. For teams managing compliance, it provides a structured reference during specification and acceptance activities.
- Indoor AC switches for metal-enclosed switchgear
- Rated voltage range from 1 kV to 38 kV
- Redline comparison for revision review
- Medium-voltage power system applications
- Design, testing, and compliance reference
- Publication Date: 2013
- Standard Status: Inactive
- Publisher: IEEE
- Subject: Power, Energy and Industry Applications; Components, Circuits, Devices and Systems; Engineered Materials, Dielectrics and Plasmas
- Official IEEE: Doi link
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