1、 IEC 61914 Edition 2.0 2015-11 INTERNATIONAL STANDARD NORME INTERNATIONALE Cable cleats for electrical installations Brides de cbles pour installations lectriques IEC 61914:2015-11(en-fr) colour inside THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2015 IEC, Geneva, Switzerland All rights reserve
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19、tactez-nous: csciec.ch. IEC 61914 Edition 2.0 2015-11 INTERNATIONAL STANDARD NORME INTERNATIONALE Cable cleats for electrical installations Brides de cbles pour installations lectriques INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE ICS 29.120.20 ISBN 978-2-8322
20、3012-1 Registered trademark of the International Electrotechnical Commission Marque dpose de la Commission Electrotechnique Internationale Warning! Make sure that you obtained this publication from an authorized distributor. Attention! Veuillez vous assurer que vous avez obtenu cette publication vi
21、a un distributeur agr. colour inside 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
22、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
23、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 Resi
24、stant 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 Req
25、uirements . 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.
26、5 19 10 Fire hazards 19 10.1 Flame propagation 19 IEC 61914:2015 IEC 2015 3 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 compat
27、ibility 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 mecha
28、nical 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 Figu
29、re 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 24 Figure B.2
30、Short-circuit current of a near-to-generator short circuit with decaying a.c. component 25 Figure B.3 Two parallel conductors 26 Table 1 Maximum temperature for permanent application 9 Table 2 Minimum temperature for permanent application . 9 Table 3 Impact test values . 14 Table 4 Resistance to cor
31、rosion . 22 4 IEC 61914:2015 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 Nationa
32、l Committees). The object of IEC is to promote international co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports, Publicly
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41、ferenced publications is indispensable for the correct application of this publication. 9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of patent rights. IEC shall not be held responsible for identifying any or all such patent rights. Int
42、ernational Standard IEC 61914 has been prepared by subcommittee 23A: Cable management systems, of IEC technical committee 23: Electrical accessories. This second edition cancels and replaces the first edition published in 2009. This edition constitutes a technical revision. This edition includes the
43、 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 t
44、est 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
45、 the cable used; IEC 61914:2015 IEC 2015 5 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 defini
46、tions; 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 eithe
47、r 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. The text of this standard is based on the following docum
48、ents: FDIS Report on voting 23A/786/FDIS 23A/795/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. In this standard, the followin
49、g print types are used: requirements proper: in roman type; test specifications: in italic type; notes: in smaller roman type. The committee has decided that the contents of this publication will remain unchanged until the stability date indicated on the IEC website 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 e
