IEC 62271-103-2021 cor1-2025 PDF

Full title and description

IEC 62271-103:2021/COR1:2025 — Corrigendum 1 to "High-voltage switchgear and controlgear — Part 103: Alternating current switches for rated voltages above 1 kV up to and including 52 kV". This corrigendum provides editorial corrections and technical clarifications to the second edition (2021) of IEC 62271-103, updating test descriptions, definitions and small technical errors to ensure alignment with IEC 62271-1 and related parts.

Abstract

This document is Corrigendum 1 to IEC 62271-103:2021. It contains a small number of corrections and clarifications affecting test procedures, normative references, and specific wording in clauses related to making and breaking tests, restrikes and capacitive switching behavior. The corrigendum is bilingual (English/French), comprises only a few pages and is intended to be read in conjunction with the full 2021 edition rather than as a standalone replacement.

General information

• Status: Published — Corrigendum to IEC 62271-103:2021 (effective).
• Publication date: 16 July 2025 (IEC publication date of Corrigendum 1).
• Publisher: International Electrotechnical Commission (IEC).
• ICS / categories: 29.130.10 (High-voltage switchgear and controlgear).
• Edition / version: Edition 2.0 b, Corrigendum 1 (Ed. 2.0 b Cor.1:2025) — corrigendum to IEC 62271-103:2021.
• Number of pages: 3 pages (corrigendum document).

Scope

IEC 62271-103:2021 and this Corrigendum 1 apply to three-phase alternating-current switches and switch-disconnectors used for their switching function, with making and breaking current ratings, for indoor and outdoor installations at rated voltages above 1 kV up to and including 52 kV and for rated frequencies from 16 2/3 Hz up to 60 Hz. The corrigendum corrects and clarifies selected clauses of the 2021 edition (for example, test descriptions and definitions related to breaking tests, restrikes and capacitive switching) and must be used together with the parent 2021 publication.

Key topics and requirements

• Corrections to test procedure wording for making and breaking tests (clarifying expected behaviour and test sequence).
• Clarifications on interruption performance, restrikes and NSDD (non‑sustained disruptive discharge) definitions to align with IEC 62271-1.
• Editorial fixes to normative references and cross-references within the 2021 edition.
• Adjustments to capacitive switching classes and related test acceptance criteria where minor inconsistencies were identified.
• Harmonization notes to ensure consistency with IEC 62271-102 and other parts of the 62271 series.
• No substantive new technical requirements — corrigendum provides corrections and clarifications only.

Typical use and users

This corrigendum is used by manufacturers of high-voltage alternating-current switches and switch-disconnectors, test laboratories, certification bodies, utilities, system integrators, specification writers and standards committees. It is consulted when performing type tests, writing procurement specifications, preparing test reports, or ensuring product conformity to IEC 62271-103:2021; users should apply the corrigendum alongside the full 2021 edition.

Related standards

Related and commonly cross-referenced documents include IEC 62271-1 (common specifications for high-voltage switchgear and controlgear), IEC 62271-102 (switch-disconnectors), earlier IEC 60265-1 (historic predecessor), and regional/adopted versions such as EN/SS/NE variants of IEC 62271-103. Other parts of the IEC 62271 series (for example IEC 62271-100 and testing/terminology documents) are also relevant when specifying or testing switchgear.

Keywords

high-voltage, switchgear, alternating current switches, switch-disconnector, making tests, breaking tests, restrike, NSDD, capacitive switching, corrigendum, IEC 62271-103, 52 kV.

FAQ

Q: What is this standard?

A: It is Corrigendum 1 (2025) to IEC 62271-103:2021 — a short corrections/clarifications document for the 2021 edition of the standard covering alternating-current switches for rated voltages above 1 kV up to and including 52 kV.

Q: What does it cover?

A: The corrigendum corrects editorial errors and clarifies certain technical points in the 2021 edition, notably wording in test procedures (making/breaking tests), behaviour during interruption and restrikes, and alignment with IEC 62271-1; it does not introduce new substantive technical requirements.

Q: Who typically uses it?

A: Manufacturers, test laboratories, certification bodies, utilities, standards committees and procurement/specification authors who apply IEC 62271-103:2021 in design, testing and acceptance of high-voltage switches.

Q: Is it current or superseded?

A: As of its publication date (16 July 2025) the corrigendum is the current correction to IEC 62271-103:2021. It is not a new edition; users should apply it together with the 2021 edition. Check national or regional adoptions (EN/SS/NEN) for any further amendments.

Q: Is it part of a series?

A: Yes — IEC 62271-103 is part of the IEC 62271 series for high-voltage switchgear and controlgear; it is intended to be used with other parts such as IEC 62271-1 and IEC 62271-102 that define common requirements and additional functions.

Q: What are the key keywords?

A: High-voltage, switchgear, alternating current switch, switch-disconnector, making and breaking tests, restrike, capacitive switching, NSDD, corrigendum, IEC 62271-103:2021/COR1:2025.