IEC 61914:2015
(Main)Cable cleats for electrical installations
Cable cleats for electrical installations
IEC 61914:2015 specifies requirements and tests for cable cleats and intermediate restraints used for securing cable in electrical installations. Cable cleats provide resistance to electromechanical forces where declared. This standard includes cable cleats that rely on a mounting surface specified by the manufacturer for axial and/or lateral retention of cables. This second edition cancels and replaces the first edition published in 2009. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
a) Additional declaration and test for lateral load retention depending on cleat mounting orientation with associated new figures;
b) Additional declaration of the distance between the cable centres in any short-circuit test and associated new figures;
c) Specification of the cable to be used in short-circuit testing and relaxation of the ambient temperature limits for the test;
d) Additional requirement to photograph the short-circuit test arrangement before and after the test and to record more complete details of the cable used;
e) Revised parameters for the test of resistance to UV light.
This edition also includes the following editorial changes with respect to the previous edition:
f) Revised and updated normative references and bibliography;
g) Editorial clarification of definitions;
h) Editorial clarification of procedures for selection of test samples and the testing of cleats designed for more than one cable;
i) Relaxation of some mandrel material requirements;
j) Clarification of the inspection requirements following a short-circuit test and adding the option of either a.c. or d.c. voltage testing following a second short-circuit;
k) Clarification that the resistance to corrosion test applies to all types of fixing;
l) New cleat example illustration;
m) Limitations of use of the formulae in Annex B added.
Brides de câbles pour installations électriques
L'IEC 61914:2015 spécifie les exigences et essais pour brides de câbles et dispositifs intermédiaires de tenue utilisés pour la fixation de câbles dans des installations électriques. Les brides de câbles fournissent une résistance aux forces électromécaniques lorsque cela est déclaré. La présente norme inclut les brides de câbles qui reposent sur une surface de montage spécifiée par le fabricant pour le maintien axial et/ou latéral des câbles. Cette deuxième édition annule et remplace la première édition parue en 2009. Cette édition constitue une révision technique. Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente:
a) Déclaration et test complémentaires pour le maintien latéral à la charge en fonction de l'orientation de montage des brides, et ajout de nouvelles figures associées;
b) Déclaration supplémentaire de la distance entre les centres des câbles pour tout essai de court-circuit, et mise à jour des figures associées;
c) Définition du type de câble à utiliser pour les essais de court-circuit et assouplissement des limites de température ambiante durant les essais;
d) Ajout de photographies illustrant le montage d'essai avant et après l'essai de court-circuit et exigence supplémentaire de consigner les caractéristiques détaillées du câble utilisé;
e) Modifications des paramètres de l'essai de tenue aux rayonnements lumineux ultraviolets.
Cette édition inclut également les modifications éditoriales suivantes par rapport à l'édition précédente:
f) Mise à jour des références normatives et de la bibliographie;
g) Clarification éditoriale des définitions;
h) Clarification éditoriale des règles de choix des échantillons d'essai et des essais de brides de câbles conçues pour plusieurs câbles;
i) Assouplissement de certaines exigences relatives aux matériaux des mandrins;
j) Clarification des exigences de contrôle après un essai de court-circuit et ajout de l'option d'essai en tension alternative ou en tension continue après un deuxième court-circuit;
k) Clarification de l'application de l'essai de tenue à la corrosion à tous les types de fixations;
l) Nouvelle illustration d'exemple de bride de câbles;
m) Limitations de l'utilisation des formules de l'Annexe B.
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IEC 61914 ®
Edition 2.0 2015-11
REDLINE VERSION
INTERNATIONAL
STANDARD
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Cable cleats for electrical installations
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
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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.
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The advanced search enables to find IEC publications by a More than 60 000 electrotechnical terminology entries in
variety of criteria (reference number, text, technical English and French extracted from the Terms and Definitions
committee,…). It also gives information on projects, replaced clause of IEC publications issued since 2002. Some entries
and withdrawn publications. have been collected from earlier publications of IEC TC 37,
77, 86 and CISPR.
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IEC 61914 ®
Edition 2.0 2015-11
REDLINE VERSION
INTERNATIONAL
STANDARD
colour
inside
Cable cleats for electrical installations
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 29.120.20 ISBN 978-2-8322-3050-3
– 2 – IEC 61914:2015 RLV © IEC 2015
CONTENTS
FOREWORD . 4
1 Scope . 7
2 Normative references . 7
3 Terms, definitions and abbreviations . 7
4 General requirements . 9
5 General notes on tests . 9
6 Classification . 10
6.1 According to material . 10
6.1.1 Metallic . 10
6.1.2 Non-metallic . 10
6.1.3 Composite . 10
6.2 According to maximum and minimum temperature . 10
6.3 According to resistance to impact . 11
6.3.1 Very light . 11
6.3.2 Light . 11
6.3.3 Medium . 11
6.3.4 Heavy . 11
6.3.5 Very heavy . 11
6.4 According to type of retention or resistance to electromechanical forces or
both . 11
6.4.1 General . 11
6.4.2 With lateral retention . 11
6.4.3 With axial retention . 11
6.4.4 Resistant to electromechanical forces, withstanding one short circuit . 11
6.4.5 Resistant to electromechanical forces, withstanding more than one
short circuit . 11
6.5 According to environmental influences . 11
6.5.1 Resistant to ultraviolet light for non-metallic and composite components . 11
6.5.2 Resistant to corrosion for metallic and composite components . 11
7 Marking and documentation . 11
7.1 Marking . 11
7.2 Durability and legibility . 12
7.3 Documentation . 12
8 Construction . 12
9 Mechanical properties. 12
9.1 Requirements . 12
9.2 Impact test . 13
9.3 Lateral load test . 15
9.4 Axial load test . 17
9.5 Test for resistance to electromechanical force . 19
9.5.1 General . 19
9.5.2 For cable cleats and intermediate restraints classified in 6.4.4 . 21
9.5.3 For cable cleats and intermediate restraints classified in 6.4.5 . 21
10 Fire hazards . 22
10.1 Flame propagation . 22
10.2 Smoke emission . 23
10.3 Smoke toxicity . 23
11 Environmental influences . 24
11.1 Resistance to ultraviolet light . 24
11.2 Resistance to corrosion . 24
11.2.1 General . 24
11.2.2 Salt spray test . 25
12 Electromagnetic compatibility . 25
12.1 Electromagnetic emission . 25
12.2 Inductive heating . 26
Annex A (informative) Examples of cable cleats . 27
Annex B (informative) Calculation of forces caused by short-circuit currents . 28
B.1 Characteristics . 28
B.2 Specification of the test current . 29
B.3 Calculation of the mechanical forces between conductors . 29
Bibliography . 32
Figure 1– Typical arrangement for impact test . 14
Figure 2 – Typical arrangements for lateral load test . 17
Figure 3 – Typical arrangement for axial load test . 18
Figure 4 – Typical assemblies for test for resistance to electromechanical force . 19
Figure 5 – Typical arrangement of three cables in trefoil formation . 20
Figure 6 – Typical arrangement of cables in flat formation . 20
Figure 7 – Typical arrangement of the needle-flame test . 23
Figure B.1 – Short-circuit current of a far-from-generator short circuit with constant a.c.
component . 28
Figure B.2 – Short-circuit current of a near-to-generator short circuit with decaying a.c.
component . 29
Figure B.3 – Two parallel conductors . 30
Table 1 – Maximum temperature for permanent application . 10
Table 2 – Minimum temperature for permanent application . 10
Table 3 – Impact test values . 15
Table 4 – Resistance to corrosion . 25
– 4 – IEC 61914:2015 RLV © IEC 2015
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
CABLE CLEATS FOR ELECTRICAL INSTALLATIONS
FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote
international co-operation on all questions concerning standardization in the electrical and electronic fields. To
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4) In order to pro
...
IEC 61914 ®
Edition 2.0 2015-11
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Cable cleats for electrical installations
Brides de câbles pour installations électriques
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
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questions sur le copyright de l'IEC ou si vous désirez obtenir des droits supplémentaires sur cette publication, utilisez
les coordonnées ci-après ou contactez le Comité national de l'IEC de votre pays de résidence.
IEC Central Office Tel.: +41 22 919 02 11
3, rue de Varembé Fax: +41 22 919 03 00
CH-1211 Geneva 20 info@iec.ch
Switzerland 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.
IEC Catalogue - webstore.iec.ch/catalogue Electropedia - www.electropedia.org
The stand-alone application for consulting the entire The world's leading online dictionary of electronic and
bibliographical information on IEC International Standards, electrical terms containing more than 30 000 terms and
Technical Specifications, Technical Reports and other definitions in English and French, with equivalent terms in 15
documents. Available for PC, Mac OS, Android Tablets and additional languages. Also known as the International
iPad. Electrotechnical Vocabulary (IEV) online.
IEC publications search - www.iec.ch/searchpub IEC Glossary - std.iec.ch/glossary
The advanced search enables to find IEC publications by a More than 60 000 electrotechnical terminology entries in
variety of criteria (reference number, text, technical English and French extracted from the Terms and Definitions
committee,…). It also gives information on projects, replaced clause of IEC publications issued since 2002. Some entries
and withdrawn publications. have been collected from earlier publications of IEC TC 37,
77, 86 and CISPR.
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IEC 61914 ®
Edition 2.0 2015-11
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Cable cleats for electrical installations
Brides de câbles pour installations électriques
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.120.20 ISBN 978-2-8322-3012-1
– 2 – IEC 61914:2015 © IEC 2015
CONTENTS
FOREWORD . 4
1 Scope . 6
2 Normative references . 6
3 Terms, definitions and abbreviations . 6
4 General requirements . 8
5 General notes on tests . 8
6 Classification . 9
6.1 According to material . 9
6.1.1 Metallic . 9
6.1.2 Non-metallic . 9
6.1.3 Composite . 9
6.2 According to maximum and minimum temperature . 9
6.3 According to resistance to impact . 10
6.3.1 Very light . 10
6.3.2 Light . 10
6.3.3 Medium . 10
6.3.4 Heavy . 10
6.3.5 Very heavy . 10
6.4 According to type of retention or resistance to electromechanical forces or
both . 10
6.4.1 General . 10
6.4.2 With lateral retention . 10
6.4.3 With axial retention . 10
6.4.4 Resistant to electromechanical forces, withstanding one short circuit . 10
6.4.5 Resistant to electromechanical forces, withstanding more than one
short circuit . 10
6.5 According to environmental influences . 10
6.5.1 Resistant to ultraviolet light for non-metallic and composite components . 10
6.5.2 Resistant to corrosion for metallic and composite components . 10
7 Marking and documentation . 10
7.1 Marking . 10
7.2 Durability and legibility . 11
7.3 Documentation . 11
8 Construction . 11
9 Mechanical properties. 11
9.1 Requirements . 11
9.2 Impact test . 12
9.3 Lateral load test . 14
9.4 Axial load test . 15
9.5 Test for resistance to electromechanical force . 17
9.5.1 General . 17
9.5.2 For cable cleats and intermediate restraints classified in 6.4.4 . 19
9.5.3 For cable cleats and intermediate restraints classified in 6.4.5 . 19
10 Fire hazards . 19
10.1 Flame propagation . 19
10.2 Smoke emission . 20
10.3 Smoke toxicity . 20
11 Environmental influences . 21
11.1 Resistance to ultraviolet light . 21
11.2 Resistance to corrosion . 21
11.2.1 General . 21
11.2.2 Salt spray test . 22
12 Electromagnetic compatibility . 22
12.1 Electromagnetic emission . 22
12.2 Inductive heating . 22
Annex A (informative) Examples of cable cleats . 23
Annex B (informative) Calculation of forces caused by short-circuit currents . 24
B.1 Characteristics . 24
B.2 Specification of the test current . 25
B.3 Calculation of the mechanical forces between conductors . 25
Bibliography . 28
Figure 1– Typical arrangement for impact test . 13
Figure 2 – Typical arrangements for lateral load test . 15
Figure 3 – Typical arrangement for axial load test . 16
Figure 4 – Typical assemblies for test for resistance to electromechanical force . 17
Figure 5 – Typical arrangement of three cables in trefoil formation . 18
Figure 6 – Typical arrangement of cables in flat formation . 18
Figure 7 – Typical arrangement of the needle-flame test . 20
Figure B.1 – Short-circuit current of a far-from-generator short circuit with constant a.c.
component .
...
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