Low-voltage electrical installations - Part 5-52: Selection and erection of electrical equipment - Wiring systems

IEC 60364-5-52:2009 deals with the selection and erection of wiring systems. This third edition cancels and replaces the second edition, published in 2001, and constitutes a technical revision. The main changes with respect to the previous edition are as follows:
- Subclause 521.4 introduces minor changes with regard to busbar trunking systems and powertrack systems.
- Subclause 523.6 introduces minor changes with regard to the sizing of cables where harmonic currents are present.
- A new sublause 523.9 concerning single-core cables with a metallic covering has been introduced.
- Clause 525 introduces changes in the maximum value of voltage drop permitted between the origin of the consumer's installation and the equipment which should not be greater than that given in the relevant annex.
- Clause 526 introduces minor changes to electrical connections including additional exceptions for inspection of connections and additional notes.
- Clause 528 introduces additional requirements with regard to proximity of underground power and telecommunication cables.
- Clause 529 introduces minor changes to selection and erection of wiring systems in relation to maintainability, including cleaning. The contents of the corrigendum of February 2011 have been included in this copy.

Installations électriques à basse-tension - Partie 5-52: Choix et mise en oeuvre des matériels électriques - Canalisations

La CEI 60364-5-52:2009 traite du choix et de la mise en oeuvre des canalisations. Cette troisième édition annule et remplace la deuxième édition, publiée en 2001. Elle constitue une révision technique. Les principaux changements par rapport à l'édition précédente sont les suivants:
- Le paragraphe 521.4 apporte des changements mineurs aux canalisations préfabriquées et aux systèmes de conducteurs préfabriqués.
- Le paragraphe 523.6 apporte des changements mineurs au dimensionnement des câbles en présence de courants harmoniques.
- Un nouveau paragraphe 523.9 a été introduit; il concerne les câbles monoconducteurs à gaine métallique.
- L'Article 525 insère des modifications de la valeur maximale de la chute de tension admissible entre l'origine de l'installation et l'équipement de l'utilisateur; il convient que celle-ci ne soit pas supérieure à celle donnée dans l'annexe correspondante.
- L'Article 526 apporte des changements mineurs aux connexions électriques, y compris des restrictions relatives à la vérification des connexions et des notes complémentaires.
- L'Article 528 introduit des exigences supplémentaires concernant le voisinage des câbles enterrés de réseaux d'énergie et de communications.
- L'Article 529 apporte des changements mineurs au choix et à la mise en uvre des canalisations en fonction de la maintenance, comprenant le nettoyage. Le contenu du corrigendum de février 2011 a été pris en considération dans cet exemplaire.

General Information

Status
Published
Publication Date
19-Oct-2009
Current Stage
PPUB - Publication issued
Start Date
31-Oct-2009
Completion Date
20-Oct-2009
Ref Project

Relations

Buy Standard

Standard
IEC 60364-5-52:2009 - Low-voltage electrical installations - Part 5-52: Selection and erection of electrical equipment - Wiring systems
English and French language
171 pages
sale 15% off
Preview
sale 15% off
Preview

Standards Content (Sample)


IEC 60364-5-52 ®
Edition 3.0 2009-10
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Low-voltage electrical installations –
Part 5-52: Selection and erection of electrical equipment – Wiring systems

Installations électriques à basse tension –
Partie 5-52: Choix et mise en œuvre des matériels électriques – Canalisations

All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by
any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either IEC or
IEC's member National Committee in the country of the requester.
If you have any questions about IEC copyright or have an enquiry about obtaining additional rights to this publication,
please contact the address below or your local IEC member National Committee for further information.

Droits de reproduction réservés. Sauf indication contraire, aucune partie de cette publication ne peut être reproduite
ni utilisée sous quelque forme que ce soit et par aucun procédé, électronique ou mécanique, y compris la photocopie
et les microfilms, sans l'accord écrit de la CEI ou du Comité national de la CEI du pays du demandeur.
Si vous avez des questions sur le copyright de la CEI ou si vous désirez obtenir des droits supplémentaires sur cette
publication, utilisez les coordonnées ci-après ou contactez le Comité national de la CEI de votre pays de résidence.

IEC Central Office
3, rue de Varembé
CH-1211 Geneva 20
Switzerland
Email: inmail@iec.ch
Web: www.iec.ch
About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.

About IEC publications
The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the
latest edition, a corrigenda or an amendment might have been published.
ƒ Catalogue of IEC publications: www.iec.ch/searchpub
The IEC on-line Catalogue enables you to search by a variety of criteria (reference number, text, technical committee,…).
It also gives information on projects, withdrawn and replaced publications.
ƒ IEC Just Published: www.iec.ch/online_news/justpub
Stay up to date on all new IEC publications. Just Published details twice a month all new publications released. Available
on-line and also by email.
ƒ Electropedia: www.electropedia.org
The world's leading online dictionary of electronic and electrical terms containing more than 20 000 terms and definitions
in English and French, with equivalent terms in additional languages. Also known as the International Electrotechnical
Vocabulary online.
ƒ Customer Service Centre: www.iec.ch/webstore/custserv
If you wish to give us your feedback on this publication or need further assistance, please visit the Customer Service
Centre FAQ or contact us:
Email: csc@iec.ch
Tel.: +41 22 919 02 11
Fax: +41 22 919 03 00
A propos de la CEI
La Commission Electrotechnique Internationale (CEI) est la première organisation mondiale qui élabore et publie des
normes internationales pour tout ce qui a trait à l'électricité, à l'électronique et aux technologies apparentées.

A propos des publications CEI
Le contenu technique des publications de la CEI est constamment revu. Veuillez vous assurer que vous possédez
l’édition la plus récente, un corrigendum ou amendement peut avoir été publié.
ƒ Catalogue des publications de la CEI: www.iec.ch/searchpub/cur_fut-f.htm
Le Catalogue en-ligne de la CEI vous permet d’effectuer des recherches en utilisant différents critères (numéro de référence,
texte, comité d’études,…). Il donne aussi des informations sur les projets et les publications retirées ou remplacées.
ƒ Just Published CEI: www.iec.ch/online_news/justpub
Restez informé sur les nouvelles publications de la CEI. Just Published détaille deux fois par mois les nouvelles
publications parues. Disponible en-ligne et aussi par email.
ƒ Electropedia: www.electropedia.org
Le premier dictionnaire en ligne au monde de termes électroniques et électriques. Il contient plus de 20 000 termes et
définitions en anglais et en français, ainsi que les termes équivalents dans les langues additionnelles. Egalement appelé
Vocabulaire Electrotechnique International en ligne.
ƒ Service Clients: www.iec.ch/webstore/custserv/custserv_entry-f.htm
Si vous désirez nous donner des commentaires sur cette publication ou si vous avez des questions, visitez le FAQ du
Service clients ou contactez-nous:
Email: csc@iec.ch
Tél.: +41 22 919 02 11
Fax: +41 22 919 03 00
IEC 60364-5-52 ®
Edition 3.0 2009-10
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Low-voltage electrical installations –
Part 5-52: Selection and erection of electrical equipment – Wiring systems

Installations électriques à basse tension –
Partie 5-52: Choix et mise en œuvre des matériels électriques – Canalisations

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
XC
CODE PRIX
ICS 13.260; 91.140.50 ISBN 978-2-88910-175-7
– 2 – 60364-5-52 © IEC:2009
CONTENTS
FOREWORD.6
520 Introduction .8
520.1 Scope .8
520.2 Normative references .8
520.3 Terms and definitions .9
520.4 General .9
521 Types of wiring system .10
521.4 Busbar trunking systems and powertrack systems .10
521.5 AC circuits – Electromagnetic effects (prevention of eddy current).10
521.6 Conduit systems, cable ducting systems, cable trunking systems, cable
tray systems and cable ladder systems.10
521.7 Several circuits in one cable .11
521.8 Circuit arrangements .11
521.9 Use of flexible cables or cords .11
521.10 Installation of cables.11
522 Selection and erection of wiring systems in relation to external influences .11
522.1 Ambient temperature (AA) .11
522.2 External heat sources .12
522.3 Presence of water (AD) or high humidity (AB).12
522.4 Presence of solid foreign bodies (AE) .12
522.5 Presence of corrosive or polluting substances (AF) .13
522.6 Impact (AG) .13
522.7 Vibration (AH).13
522.8 Other mechanical stresses (AJ) .13
522.9 Presence of flora and/or mould growth (AK).15
522.10 Presence of fauna (AL) .15
522.11 Solar radiation (AN) and ultraviolet radiation.15
522.12 Seismic effects (AP) .15
522.13 Wind (AR).15
522.14 Nature of processed or stored materials (BE) .15
522.15 Building design (CB) .15
523 Current-carrying capacities .16
523.5 Groups containing more than one circuit.17
523.6 Number of loaded conductors .17
523.7 Conductors in parallel.17
523.8 Variation of installation conditions along a route .18
523.9 Single-core cables with a metallic covering.18
524 Cross-sectional areas of conductors .18
524.2 Cross-sectional area of the neutral conductor .19
525 Voltage drop in consumers' installations .20
526 Electrical connections .20
526.8 Connection of multi wire, fine wire and very fine wire conductors.21
527 Selection and erection of wiring systems to minimize the spread of fire .21
527.1 Precautions within a fire-segregated compartment.21
527.2 Sealing of wiring system penetrations.22
528 Proximity of wiring systems to other services .23

60364-5-52 © IEC:2009 – 3 –
528.1 Proximity to electrical services.23
528.2 Proximity of communications cables .23
528.3 Proximity to non-electrical services.23
529 Selection and erection of wiring systems in relation to maintainability, including
cleaning.24
Annex A (normative) Methods of installations.25
Annex B (informative) Current-carrying capacities .34
Annex C (informative) Example of a method of simplification of the tables of
Clause 523 .63
Annex D (informative) Formulae to express current-carrying capacities .67
Annex E (normative) Effect of harmonic currents on balanced three-phase systems .71
Annex F (informative) Selection of conduit systems .73
Annex G (informative) Voltage drop in consumers’ installations .74
Annex H (informative) Examples of configurations of parallel cables .76
Annex I (informative) List of notes concerning certain countries .79
Bibliography.84

Figure H.52.1 – Special configuration for 6 parallel single-core cables in a flat plane
(see 523.7) .76
Figure H.52.2 – Special configuration for 6 parallel single-core cables above each
other (see 523.7) .76
Figure H.52.3 – Special configuration for 6 parallel single-core cables in trefoil (see
523.7) .77
Figure H.52.4 – Special configuration for 9 parallel single-core cables in a flat plane
(see 523.7) .77
Figure H.52.5 – Special configuration for 9 parallel single-core cables above each
other (see 523.7) .77
Figure H.52.6 – Special configuration for 9 parallel single-core cables in trefoil (see
523.7) .78
Figure H.52.7 – Special configuration for 12 parallel single-core cables in a flat plane
(see 523.7) .78
Figure H.52.8 – Special configuration for 12 parallel single-core cables above each
other (see 523.7) .78
Figure H.52.9 – Special configuration for 12 parallel single-core cables in trefoil (see
523.7) .78

Table 52.1 – Maximum operating temperatures for types of insulation .
...

Questions, Comments and Discussion

Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.