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Current

IEC 61439-4:2023

Low-voltage switchgear and controlgear assemblies - Part 4: Particular requirements for assemblies for construction sites (ACS)

IEC

Standard

Publication Date: 2023-10

Commitee: IEC-TC121, IEC-SC121B

Language: EN-FR

Last Modification Date: 2024-12

Stability Date: 2026-12

IEC 61439-4:2023 defines the specific requirements of ACS as follows:
- assemblies for which the rated voltage does not exceed 1 000 V in case of AC or 1 500 V in case of DC;
- assemblies where the nominal primary voltage and the nominal secondary voltage of transformers incorporated in ACS are within the limits specified above;
- assemblies intended for use on construction sites, both indoors and outdoors, i.e. temporary places of work to which the public do not generally have access and where building construction, installation, repairs, alteration or demolition of property (buildings) or civil engineering (public works) or excavation or any other similar operations are carried out;
- transportable (semi-fixed) or mobile ASSEMBLIES with enclosure.
This second edition of IEC 61439-4 cancels and replaces the first edition published in 2012. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
a) alignment with IEC 61439-1:2020 regarding the structure and technical content, as applicable.

Relations

Replaces: IEC 61439-4:2012

International Coding Standard (ICS)

29.130.20

Low voltage switchgear and controlgear
* Including switchgear and controlgear assemblies

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ICS

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The ICS is a hierarchical classification organized on three levels.

Level 1 covers the main fields of activity in standardization, e.g. road vehicle engineering, agriculture, metallurgy.

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  43    Road Vehicle Engineering

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  43.040    Road vehicle systems

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  43.040.20 Lighting, signaling and warning devices

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