IEEE C37.30.4-2018
Voltage Interrupter Switches, Interrupters or Interrupting Aids Used on or Attached to Switches Rated for Alternating Currents Above 1000 V
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About This Item
C37.30.4-2018 is a technical standard for voltage interrupter switches, interrupters, or interrupting aids used on or attached to switches rated for alternating currents above 1000 V. It provides a focused reference for equipment used in higher-voltage power applications, where interruption performance, coordination, and construction details can affect safety and reliability. For engineering, procurement, and compliance teams, this standard helps define expectations for these switching components.
Overview of C37.30.4-2018
This standard addresses the design and application context of interrupter-related devices associated with high-voltage AC switches. C37.30.4-2018 is relevant where a switch assembly includes a voltage interrupter switch or an interrupting aid intended to manage current interruption under specified operating conditions. It supports consistent technical understanding of these components in power systems and related industrial equipment. In practice, it helps frame requirements that may influence ratings, construction, and verification.
Typical use cases
C37.30.4-2018 is commonly used when specifying or evaluating switchgear components in substations, industrial distribution systems, and other alternating-current installations above 1000 V. It may apply to switches fitted with interrupter devices, auxiliary interrupting parts, or related assemblies used to improve operating performance. The standard is especially useful during equipment selection, design review, and acceptance testing for systems where reliable interruption and safe switching behavior are important.
Why it matters
For high-voltage switching equipment, clear technical requirements help reduce ambiguity across design, manufacture, and procurement. C37.30.4-2018 supports more consistent evaluation of interrupter switches and interrupting aids, which can improve safety, interchangeability, and performance expectations. Using a recognized standard also helps buyers and engineers compare products on a common basis and reduces the risk of mismatch between equipment design and system duty. C37.30.4-2018 is therefore useful for controlled specification and compliance work.
- Voltage interrupter switches
- Interrupting aids and attachments
- AC systems above 1000 V
- Switchgear specification and review
- Compliance and acceptance checks
- Publication Date: 2018
- Standard Status: Active
- Publisher: IEEE
- Subject: Components, Circuits, Devices and Systems; Power, Energy and Industry Applications
- Official IEEE: Doi link
- This Version: C37.30.4 (2018)
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