IEEE C37.09-2018/Cor 1-2021
Corrigendum 1
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About This Item
C37.09-2018/Cor 1-2021 is a corrigendum to the C37.09 technical document, issued to clarify and correct content related to components, circuits, devices, and systems used in power, energy, and industry applications. As a standard focused on engineering consistency, it helps readers interpret the base document accurately and apply its requirements with greater confidence. For organizations working with electrical equipment, C37.09-2018/Cor 1-2021 supports more reliable compliance, procurement, and technical review.
Overview of C37.09-2018/Cor 1-2021
This corrigendum serves as an update to the C37.09 standard, refining the original 2018 content rather than replacing its technical scope. In practice, it is used to align wording, correct errors, and improve clarity for users concerned with the design, evaluation, or specification of electrical components and related systems. C37.09-2018/Cor 1-2021 is most relevant where precise interpretation matters, especially in power and industrial engineering environments.
Typical use cases
C37.09-2018/Cor 1-2021 may be consulted during specification reviews, engineering audits, and document control for electrical assemblies and system-level projects. It is useful when teams need to verify how the underlying requirements should be read in applications involving power equipment, circuit functions, or device performance. The standard can also support purchasing decisions, technical comparisons, and internal quality processes where accurate reference text is important for consistent implementation.
Why it matters
Using C37.09-2018/Cor 1-2021 helps reduce ambiguity in technical interpretation, which is important when standards guide design decisions, testing, or acceptance criteria. Even a corrigendum can affect compliance workflows by correcting details that influence how a requirement is understood or applied. For engineers, buyers, and reviewers, this kind of update supports more dependable documentation, fewer specification conflicts, and better alignment between project intent and the standard itself.
- Corrigendum 1 to the 2018 edition
- Electrical components and circuits
- Power, energy, and industrial applications
- Clarity for compliance and review
- Useful for specification control
- Publication Date: 2021
- Standard Status: Active
- Publisher: IEEE
- Subject: Components, Circuits, Devices and Systems; Power, Energy and Industry Applications
- Official IEEE: Doi link
- This Version: C37.09 (2021)
- Previous Version: C37.09 (2019)
- Previous Version: C37.09 (2011)
- Previous Version: C37.09 (2007)
- Previous Version: C37.09 (2005)
- Previous Version: C37.09 (2000)
- Previous Version: C37.09 (1991)
- Previous Version: C37.09 (1991)
- Previous Version: C37.09 (1985)
- Previous Version: C37.09 (1984)
- Previous Version: C37.09 (1980)
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