IEC 61439-4:2012

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

IEC 61439-4:2012 defines the specific requirements of ACS as follows:
- ASSEMBLIES for which the rated voltage does not exceed 1 000 V in case of a.c. or 1 500 V in case of d.c.;
- 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. The manufacture and/or assembly may be carried out other than by the original manufacturer. This first edition of IEC 61439-4 cancels and replaces the second edition of IEC 60439-4 (2004), and constitutes a technical revision. This edition includes the following significant technical changes with respect to the last edition of IEC 60439-4:
- modification of the title as "Part 4: Particular requirements for assemblies for construction sites (ACS)";
- alignment on IEC 61439-1 regarding the structure and technical content, as applicable;
- to allow comparison with tested ACS.
This publication is to be read in conjunction with IEC 61439-1:2011.

Ensembles d'appareillage à basse tension - Partie 4: Exigences particulières pour ensembles de chantiers (EC)

La CEI 61439-4:2012 définit les exigences particulières de l'EC comme suit:
- ENSEMBLES dont la tension assignée ne dépasse pas 1 000 V en courant alternatif ou 1 500 V en courant continu;
- ENSEMBLES dont les valeurs nominales des tensions primaire et secondaire des appareils de transformation incorporés dans les ensembles de chantier (EC) sont dans les limites spécifiées ci-dessus;
- ENSEMBLES destinés à équiper des chantiers, à l'intérieur et à l'extérieur, c'est-à-dire des lieux de travail temporaires qui ne sont pas normalement accessibles au public et où sont exécutés des travaux de construction, d'équipement, de réparation, de modification ou de démolition d'immeubles (bâtiments) ou d'ouvrage d'art (travaux publics) ou encore des travaux de terrassement ou tout autres travaux analogues;
- ENSEMBLES de type transportable (semi-fixe) ou mobile avec enveloppe. La fabrication et/ou l'assemblage peuvent être réalisés par un constructeur autre que le constructeur d'origine. Cette première édition de la CEI 61439-4 annule et remplace la deuxième édition de la CEI 60439-4 (2004), dont elle constitue une révision technique. Cette édition inclut les modifications techniques importantes suivantes par rapport à la dernière édition de la CEI 60439-4:
- modification du titre en "Partie 4: Exigences particulières pour ensembles de chantiers (EC)";
- alignement sur la CEI 61439-1 pour ce qui concerne la structure et le contenu technique, le cas échéant;
- pour permettre la comparaison avec les EC soumis aux essais.
Cette publication doit être lue conjointement avec la CEI 61439-1:2011.

General Information

• Status: Published
• Publication Date: 14-Nov-2012
• ICS: 01 - GENERALITIES. TERMINOLOGY. STANDARDIZATION. DOCUMENTATION
• ICS: 29.130.20 - Low voltage switchgear and controlgear
• ICS: 29.140.10 - Lamp caps and holders
• Technical Committee: SC 121B - Low-voltage switchgear and controlgear assemblies
• Drafting Committee: MT 5 - TC 121/SC 121B/MT 5

Relations

• Replaces: IEC 60439-4:2004 - Low-voltage switchgear and controlgear assemblies - Part 4: Particular requirements for assemblies for construction sites (ACS)
• Effective Date: 05-Sep-2023
• Revised: IEC 61439-4:2023 - Low-voltage switchgear and controlgear assemblies - Part 4: Particular requirements for assemblies for construction sites (ACS)
• Effective Date: 05-Sep-2023

Standards Content (Sample)

IEC 61439-4 ®
Edition 1.0 2012-11
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Low-voltage switchgear and controlgear assemblies –
Part 4: Particular requirements for assemblies for construction sites (ACS)

Ensembles d'appareillage à basse tension –
Partie 4: Exigences particulières pour ensembles de chantiers (EC)

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IEC 61439-4 ®
Edition 1.0 2012-11
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Low-voltage switchgear and controlgear assemblies –

Part 4: Particular requirements for assemblies for construction sites (ACS)

Ensembles d'appareillage à basse tension –

Partie 4: Exigences particulières pour ensembles de chantiers (EC)

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX U
ICS 29.130.20 ISBN 978-2-83220-466-5

– 2 – 61439-4 © IEC:2012
CONTENTS
FOREWORD . 3
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 6
4 Symbols and abbreviations . 8
5 Interface characteristics . 8
6 Information . 9
7 Service conditions . 10
8 Constructional requirements . 11
9 Performance requirements . 13
10 Design verification . 13
11 Routine verification . 16
101 Particular features of ACS . 16
Annexes . 19
Annex C (informative) User information template . 19
Annex D (informative) Design verification . 20
Annex O (informative) Guidance on temperature rise verification . 21
Annex P (normative) Verification of the short-circuit withstand strength of busbar
structures by comparison with a tested reference design by calculation . 22
Annex AA (informative) List of notes concerning certain countries . 23
Annex BB (Void) . 24
Annex CC (informative) Items subject to agreement between the ASSEMBLY
manufacturer and the user . 25
Bibliography . 29

Figure 101 – Impact test using striking element . 15

Table 101 – Values of assumed loading . 18
Table D.1 – List of design verifications to be performed . 20
Table CC.1 – Items subject to agreement between the ASSEMBLY manufacturer and the
user . 25

61439-4 © IEC:2012 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
LOW-VOLTAGE SWITCHGEAR AND
CONTROLGEAR ASSEMBLIES –
Part 4: Particular requirements for assemblies
for construction sites (ACS)
FOREWORD
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International Standard IEC 61439-4 has been prepared by subcommittee 17D: Low-voltage
switchgear and controlgear assemblies, of IEC technical committee 17: Switchgear and
controlgear.
This first edition of IEC 61439-4 cancels and replaces the second edition of IEC 60439-4
(2004), and constitutes a technical revision.
This edition includes the following significant technical changes with respect to the last edition
of IEC 60439-4:
• modification of the title as “Part 4: Particular requirements for assemblies for construction
sites (ACS)”
• alignment on IEC 61439-1 regarding the structure and technical content, as applicable;
• to allow comparison with tested ACS.

– 4 – 61439-4 © IEC:2012
The text of this standard is based on the following documents:
FDIS Report on voting
17D/460/FDIS 17D/469/RVD
Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
This standard is to be read in conjunction with IEC 61439-1. The provisions of the general
rules dealt with in IEC 61439-1 (hereinafter referred to as Part 1) are only applicable to this
standard insofar as they are specifically cited. When this standard states “addition”,
“modification” or “replacement”, the relevant text in Part 1 is to be adapted accordingly.
Subclauses that are numbered with a 101 (102, 103, etc.) suffix are additional to the same
subclause in Part 1.
Tables and figures in this Part 4 that are new are numbered starting with 101.
New annexes in this Part 4 are lettered AA, BB, etc.
In this standard, terms written in small capitals are defined in Clause 3.
The reader’s attention is drawn to the fact that Annex AA lists all of the “in-some-country”
clauses on differing practices of a less permanent nature relating to the subject of this
standard.
A list of all parts of the IEC 61439 series, under the general title Low-voltage switchgear and
controlgear assemblies, c
...