IEC 61439-5:2014

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

IEC 61439-5:2014 defines the specific requirements for public electricity network distribution assemblies (PENDAs). PENDAs have the following criteria:
- used for the distribution of electrical energy in three phase systems for which the rated voltage does not exceed 1 000 V a.c. (see Figure 101 for a typical distribution network);
- open ASSEMBLIES are not covered by this standard;
- suitable for installation in places where only skilled persons have access for their use, however, outdoor types may be installed in situations that are accessible to ordinary persons;
- for indoor or outdoor use.
This second edition cancels and replaces the first edition published in 2010. It constitutes a technical revision. This edition includes the following significant technical changes with respect to the latest edition:
- confirmation that tests carried out on the most onerous PENDA are deemed to verify the performance of similar and less onerous assemblies of the same general construction and rating;
- more precise timing/conditions for impact force withstand tests for PENDAs designed for operation in an arctic climate;
- correction of the direction of the applied force in the static load test.
This publication is to be read in conjunction with IE 61439-1:2011. The contents of the corrigendum of March 2015 have been included in this copy.

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

L'IEC 61439-5:2014 définit les exigences spécifiques aux ensembles pour réseaux de distribution publique (ERD). Les ERD satisfont aux critères suivants:
- ils sont utilisés pour la distribution de l'énergie électrique dans des systèmes triphasés pour lesquels la tension assignée ne dépasse pas 1 000 V en courant alternatif (se reporter à la Figure 101 représentant un réseau de distribution classique);
- ils sont fixes;
- les ENSEMBLES ouverts ne sont pas couverts par la présente norme;
- ils sont adaptés à une installation dans des emplacements où seules des personnes qualifiées ont accès pour leur utilisation; cependant, des ERD pour l'extérieur peuvent être installés dans des endroits susceptibles d'être accessibles à des personnes ordinaires;
- utilisation à l'intérieur ou à l'extérieur.
Cette deuxième édition annule et remplace la première édition parue en 2010. Elle constitue une révision technique. La présente édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente:
- confirmation que les essais effectués sur les ERD les plus exigeants sont présumés vérifier la performance des ensembles analogues et moins exigeants de mêmes constructions générales et valeurs assignées;
- conditions/ durées plus précises pour les essais de résistance à l'impact des ERD conçus pour fonctionner sous un climat arctique;
- correction de la direction de la force appliquée lors de l'essai de charge statique.
Cette publication doit être lue conjointement avec la CEI 61439-1:2011. Le contenu du corrigendum de mars 2015 a été pris en considération dans cet exemplaire.

General Information

• Status: Published
• Publication Date: 24-Aug-2014
• ICS: 01 - GENERALITIES. TERMINOLOGY. STANDARDIZATION. DOCUMENTATION
• ICS: 29.130.20 - Low voltage switchgear and controlgear
• Technical Committee: SC 121B - Low-voltage switchgear and controlgear assemblies
• Drafting Committee: MT 7 - TC 121/SC 121B/MT 7
• Current Stage: DELPUB - Deleted Publication
• Start Date: 30-Sep-2021
• Completion Date: 05-May-2023

Relations

• Corrected By: IEC 61439-5:2014/COR1:2015 - Corrigendum 1 - Low-voltage switchgear and controlgear assemblies - Part 5: Assemblies for power distribution in public networks
• Effective Date: 05-Sep-2023
• Revises: IEC 61439-5:2010 - Low-voltage switchgear and controlgear assemblies - Part 5: Assemblies for power distribution in public networks
• Effective Date: 05-Sep-2023
• Revised: IEC 61439-5:2023 - 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 2.0 2014-08
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 2.0 2014-08
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
W
CODE PRIX
ICS 29.130.20 ISBN 978-2-8322-1831-0

– 2 – IEC 61439-5:2014 © IEC 2014
CONTENTS
FOREWORD . 3
1 Scope . 5
2 Normative references. 6
3 Terms and definitions . 6
4 Symbols and abbreviations . 7
5 Interface characteristics . 7
6 Information . 8
7 Service conditions . 8
8 Constructional requirements . 9
9 Performance requirements . 11
10 Design verification . 11
11 Routine verification . 24
Annexes . 25
Annex O (informative) Guidance on temperature rise verification . 26
Annex AA (normative) Cross-section of conductors . 27
Annex BB (informative) Items subject to agreement between the ASSEMBLY
manufacturer and the user . 29
Annex CC (informative) Design verification . 33
Annex DD (informative) List of notes concerning certain countries . 34
Bibliography . 35

Figure 101 – Typical distribution network . 6
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 . 8
Table 102 – Axial load to be applied to the inserts . 22
Table AA.1 – Minimum and maximum cross-section of copper and aluminium
conductors, suitable for connection (see 8.8) . 27
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) . 28
Table BB.1 – Items subject to agreement between the ASSEMBLY manufacturer and the
user 29
Table CC.1 – List of design verifications to be performed . 33

INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
LOW-VOLTAGE SWITCHGEAR AND CONTROLGEAR ASSEMBLIES –

Part 5: Assemblies for power distribution in public networks

FOREWORD
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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 second edition cancels and replaces
...