IEC 62271-214-2024 cor1-2025 PDF

Full title and description

IEC 62271-214:2024/COR1:2025 — Corrigendum 1 to "High-voltage switchgear and controlgear — Part 214: Internal arc classification for AC metal-enclosed pole-mounted switchgear and controlgear for rated voltages above 1 kV and up to and including 52 kV". This document is a short corrigendum that corrects and clarifies the 2nd edition (2024) of IEC 62271-214.

Abstract

This corrigendum (Corrigendum 1) provides editorial and/or technical corrections to IEC 62271-214:2024 to ensure accurate internal-arc classification guidance for AC metal-enclosed pole-mounted switchgear (rated >1 kV to ≤52 kV). The corrigendum is published as a bilingual (English/French) two-page supplement to the 2024 edition.

General information

• Status: Published.
• Publication date: 28 April 2025 (Corrigendum 1).
• Publisher: International Electrotechnical Commission (IEC).
• ICS / categories: 29.130.10 — High voltage switchgear and controlgear.
• Edition / version: Edition 2.0 (2024 main edition); Corrigendum 1 issued 2025.
• Number of pages: 2 pages (corrigendum document).

Scope

The corrigendum applies to IEC 62271-214:2024, which specifies internal arc classification and related test/assessment criteria for AC metal-enclosed pole-mounted switchgear and controlgear with rated voltages above 1 kV and up to and including 52 kV (service frequencies up to and including 60 Hz). It is relevant to three-phase, two-phase and single-phase open terminal equipment and to enclosures that may include fixed or removable components and insulating fluids. The corrigendum itself supplies corrections and clarifications to that 2024 edition.

Key topics and requirements

• Internal-arc classification criteria for metal-enclosed pole-mounted switchgear (rating range >1 kV to ≤52 kV).
• Test arrangements and procedures for three-phase, two-phase and single-phase equipment (internal arc testing and containment).
• Requirements and guidance on enclosure design, removable/fixed components and insulation media as they relate to internal-arc performance.
• Editorial and technical corrections introduced by Corrigendum 1 to improve clarity and ensure consistency with related IEC 62271-series documents (as applicable).
• Alignment and consistency considerations with IEC 62271-200 and other common IEC 62271 parts.

Typical use and users

Used by switchgear manufacturers, design engineers, testing and certification laboratories, utilities and asset owners, and standards committees to ensure correct internal-arc classification, safe enclosure design and compliance for pole-mounted metal-enclosed switchgear in the stated voltage range. It is also referenced by conformity assessment and procurement specifications.

Related standards

Part of the IEC 62271 series. Key related standards include IEC 62271-1 (Common specifications for AC switchgear and controlgear), IEC 62271-200 (special procedures and requirements for metal-enclosed switchgear internal-arc testing), and related national/adopted versions such as EN/DIN/VDE adoptions of IEC 62271-214. The corrigendum specifically corrects IEC 62271-214:2024.

Keywords

internal arc; internal-arc classification; pole-mounted switchgear; metal-enclosed switchgear; AC switchgear; 1 kV to 52 kV; corrigendum; IEC 62271-214; enclosure design; arc fault containment.

FAQ

Q: What is this standard?

A: This is Corrigendum 1 to IEC 62271-214:2024 — a short (2-page) document that corrects and clarifies the 2024 edition of IEC 62271-214 on internal-arc classification for AC metal-enclosed pole-mounted switchgear.

Q: What does it cover?

A: It covers corrections and clarifications related to internal-arc classification and the associated test/assessment arrangements for AC metal-enclosed pole-mounted switchgear and controlgear with rated voltages above 1 kV and up to and including 52 kV; the main 2024 standard defines the classification and test approaches.

Q: Who typically uses it?

A: Manufacturers, design engineers, testing and certification laboratories, utilities and procurement/specification authors use the standard and its corrigendum to ensure products meet internal-arc safety and classification requirements.

Q: Is it current or superseded?

A: The corrigendum (IEC 62271-214:2024/COR1:2025) is a current published correction to the 2024 2nd edition; it does not supersede the main 2024 edition but amends it. Publication date of the corrigendum is 28 April 2025. The main edition date is April 2024.

Q: Is it part of a series?

A: Yes — it is part of the IEC 62271 series (high-voltage switchgear and controlgear). The technical committee responsible is IEC TC 17 / SC 17C (Assemblies).

Q: What are the key keywords?

A: Internal arc, internal-arc classification, pole-mounted, metal-enclosed switchgear, AC switchgear, 1 kV–52 kV, corrigendum, IEC 62271-214.