IEC 61439-5:2010

Low-voltage switchgear and controlgear assemblies - Part 5: Assemblies for power distribution in public networks

IEC 61439-5:2010 gives specific requirements for public electricity network distribution assemblies (PENDAs), which are stationary assemblies verified by verification tests, as defined in this standard. These ASSEMBLIES are used for the distribution of electrical energy in three-phase systems (see Figure 101 for a typical distribution network). Open type ASSEMBLIES are not covered by this standard. This first edition of IEC 61439-5 cancels and replaces the second edition of IEC 60439-5 (2006), and constitutes a technical revision. This edition of IEC 61439-5 includes the following significant technical changes with respect to the latest edition of IEC 60439-5:
- alignment on IEC 61439-1 regarding the structure and technical content, as applicable;
- introduction of new verifications, accordingly;
- harmonisation of the requirements of substation cable distribution boards and cable distribution cabinets, thereby eliminating the need to identify and define two catagories of assembly;
- simpler standard as a result of a reduction in the number of assembly types defined and the acronyms used to identify the different assemblies.
This publication is to be read in conjunction with IEC 61439-1:2009.

Ensembles d'appareillage à basse tension - Partie 5: Ensembles pour réseaux de distribution publique

La CEI 61439-5:2010 définit des exigences spécifiques aux ensembles pour réseaux de distribution publique (ERD) qui sont fixes et vérifiés par des essais de vérification comme défini dans la présente norme. Ces ENSEMBLES sont utilisés pour la distribution de l'énergie électrique dans des systèmes triphasés (voir Figure 101 représentant un réseau de distribution classique). Les ENSEMBLES ouverts ne sont pas couverts par la présente norme. Cette première édition de la CEI 61439-5 annule et remplace la seconde édition de la CEI 60439-5 (2006), et constitue une révision technique. La présente édition de la CEI 61439-5 inclut les modifications techniques significatives suivantes par rapport à la dernière édition de la CEI 60439-5:
- alignement sur la CEI 61439-1 en ce qui concerne la structure et le contenu technique, s'il y a lieu;
- introduction de nouvelles vérifications, en conséquence;
- harmonisation des exigences relatives aux tableaux de distribution par câbles pour poste (SCDB) et aux ensembles d'appareillage pour réseaux de distribution (ERD) éliminant ainsi la nécessité d'identifier et de définir deux catégories d'ensembles;
- norme simplifiée en raison de la réduction du nombre de types d'ensembles définis et des acronymes utilisés pour identifier les différents ensembles.
Cette publication doit être lue conjointement avec l'IEC 61439-1:2009.

General Information

• Status: Published
• Publication Date: 28-Nov-2010
• ICS: 29.130.20 - Low voltage switchgear and controlgear
• ICS: 33.200 - Telecontrol. Telemetering
• Technical Committee: SC 121B - Low-voltage switchgear and controlgear assemblies
• Drafting Committee: MT 16 - TC 121/SC 121B/MT 16
• Current Stage: DELPUB - Deleted Publication
• Completion Date: 25-Aug-2014

Relations

• Replaces: IEC 60439-5:2006 - Low-voltage switchgear and controlgear assemblies - Part 5: Particular requirements for assemblies for power distribution in public networks
• Effective Date: 05-Sep-2023
• Revised: IEC 61439-5:2014 - Low-voltage switchgear and controlgear assemblies - Part 5: Assemblies for power distribution in public networks
• Effective Date: 05-Sep-2023

Standards Content (Sample)

IEC 61439-5 ®
Edition 1.0 2010-11
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Low-voltage switchgear and controlgear assemblies –
Part 5: Assemblies for power distribution in public networks

Ensembles d'appareillage à basse tension –
Partie 5: Ensembles pour réseaux de distribution publique

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IEC 61439-5 ®
Edition 1.0 2010-11
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Low-voltage switchgear and controlgear assemblies –
Part 5: Assemblies for power distribution in public networks

Ensembles d'appareillage à basse tension –
Partie 5: Ensembles pour réseaux de distribution publique

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
U
CODE PRIX
ICS 29.130.20 ISBN 978-2-88912-266-0
– 2 – 61439-5 Ó IEC:2010
CONTENTS
FOREW ORD . 3
1 Sc o pe . 5
2 Normative references . 6
3 Terms and definitions . 6
4 Symbols and abbreviations . 7
5 Interface characteristics . 7
6 Information . 7
7 Service conditions . 8
8 Constructional requirements . 8
9 Performance requirements. 11
10 Design verification . 11
11 Routine verification . 24
Annex AA (normative) Cross-section of conductors . 25

Figure 101 – Typical distribution network . 5
Figure 102 – Diagram of test to verify resistance to shock load of a PENDA-O. 14
Figure 103 – Diagram of test to verify impact force withstand of a PENDA-O . 15
Figure 104 – Diagram of test to verify the resistance to static load. 16
Figure 105 – Sandbag for test to verify the resistance to shock load . 17
Figure 106 – Diagram of test to verify resistance to torsional stress of a PENDA-O . 18
Figure 107 – Diagram of test to verify the mechanical strength of doors . 21
Figure 108 – Striker element for test of resistance to mechanical shock impacts
induced by sharp-edged objects . 22
Figure 109 – Typical test arrangement for mechanical strength of base . 23

Table 101 – Values of assumed loading . 7
Table 102 – Axial load to be applied to the inserts . 21
Table AA.1 – Minimum and maximum cross-section of copper and aluminium
conductors, suitable for connection (see 8.8). 25
Table AA.2 – Standard cross-sections of round copper conductors and approximate
relationship between mm and AWG/kcmil sizes (see 8.8 of Part 1) . 26

61439-5 Ó IEC:2010 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
LOW-VOLTAGE SWITCHGEAR AND CONTROLGEAR ASSEMBLIES –

Part 5: Assemblies for power distribution in public networks

FOREWORD
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patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 61439-5 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 61439-5 cancels and replaces the second edition of IEC 60439-5
(2006), and constitutes a technical revision.
This edition of IEC 61439-5 includes the following significant technical changes with respect
to the latest edition of IEC 60439-5:
– alignment on IEC 61439-1 regarding the structure and technical content, as applicable;
– introduction of new verifications, accordingly;
– harmonisation of the requirements of substation cable distribution boards and cable
distribution cabinets, thereby eliminating the need to identify and define two catagories of
assembly;
– simpler standard as a result of a reduction in the number of assembly types defined and
the acronyms used to identify the different assemblies.

– 4 – 61439-5 Ó IEC:2010
The text of this standard is based on the following documents:
FDIS Report on voting
17D/422/FDIS 17D/430/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 5 that are new are numbered starting with 101.
New annexes in this Part 5 are lettered AA, BB, etc.
In this standard, terms written in small capitals are defined in Clause 3.
A list of all parts of the IEC 61439 series, under the general title Low-voltage switchgear and
controlgear assemblies can be found on the IEC website.
The committee has decided that the contents of this publication will remain unchanged until
the stability date indicated on the IEC web site under "http://webstore.iec.ch" in the data
related to the specific publication. At this date, the publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
61439-5 Ó IEC:2010 – 5 –
LOW-VOLTAGE SWIT
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