British Standards Institution

Source:: CENELEC
Committee:: JPEL/64 - Electrical Installations of Buildings - Joint Committee
Categories:: Information management | Standardization. General rules

Scope

IEC 60364-4-43:2023 provides requirements for: - protection of live conductors, PEN conductors, PEM conductors, and PEL conductors against the harmful effects caused by overcurrent; - coordination of measures for protection against overcurrent. This fourth edition cancels and replaces the third edition published in 2008. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) the standard has been restructured, see Table 1 (Correspondence between IEC 60364‑4‑43:2008 and this document) below; b) the measure "automatic disconnection of supply" has been designated as the preferred measure for protection against overcurrent; c) all measures except the measure "automatic disconnection of supply" have been transferred intonew normative annexes to indicate that these measures are usable in certain applications and under certain restrictedconditions only (see Annex A, Annex B and Annex E); d) a new clause "Terms and definitions" has been added; e) new requirements have been added for the protection of the neutral or mid-point conductor (with and without triplen harmonics).

Purpose

Amends by Common Mod the HD 60364-4-43:2023 (pr=63262)

Comment on proposal

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Discard

Please email further comments to: debbie.stead@bsigroup.com

Standard timeline

1. Proposal

Proposal start date:

03/06/2024

Proposal end date:

05/06/2024

2. Draft

3. Public Comments

4. Comment Resolution

5. Approval

6. Publication

Learn more about the standards development process

Standards Development

CLC/NWIP HD 60364-4-43:2023/prAA CLC/TC 64 Low-voltage electrical installations - Part 4-43: Protection for safety - Protection against overcurrent

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