IEC 60702-3-2016 Mineral insulated cables and their terminations with a rated voltage not exceeding 750 V - Part 3 Guidance for use《额定电压不超过750 V的矿物绝缘电缆和其终端 第3部分 使用指南》.pdf

《IEC 60702-3-2016 Mineral insulated cables and their terminations with a rated voltage not exceeding 750 V - Part 3 Guidance for use《额定电压不超过750 V的矿物绝缘电缆和其终端 第3部分 使用指南》.pdf》由会员分享，可在线阅读，更多相关《IEC 60702-3-2016 Mineral insulated cables and their terminations with a rated voltage not exceeding 750 V - Part 3 Guidance for use《额定电压不超过750 V的矿物绝缘电缆和其终端 第3部分 使用指南》.pdf（30页珍藏版）》请在麦多课文档分享上搜索。

1、 IEC 60702-3 Edition 1.0 2016-04 INTERNATIONAL STANDARD NORME INTERNATIONALE Mineral insulated cables and their terminations with a rated voltage not exceeding 750 V Part 3: Guidance for use Cbles isolant minral et leurs terminaisons de tension assigne ne dpassant pas 750 V Partie 3: Guide dutilisat

2、ion IEC 60702-3:2016-04(en-fr) THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2016 IEC, Geneva, Switzerland 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

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19、s dsirez nous donner des commentaires sur cette publication ou si vous avez des questions contactez-nous: csciec.ch. IEC 60702-3 Edition 1.0 2016-04 INTERNATIONAL STANDARD NORME INTERNATIONALE Mineral insulated cables and their terminations with a rated voltage not exceeding 750 V Part 3: Guidance f

20、or use Cbles isolant minral et leurs terminaisons de tension assigne ne dpassant pas 750 V Partie 3: Guide dutilisation INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE ICS 29.060.20 ISBN 978-2-8322-3324-5 Registered trademark of the International Electrotechnical

21、 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 via un distributeur agr. 2 IEC 60702-3:2016 IEC 2016 CONTENTS FOREWO

22、RD . 3 1 Scope 5 2 Normative references. 5 3 Terms and definitions 5 4 Safety . 5 4.1 Fundamental considerations 5 4.2 General . 5 4.3 Support and fixing . 7 5 Limiting conditions . 7 5.1 General . 7 5.2 Voltage . 7 5.3 Current carrying capacity . 7 5.4 Thermal effects . 8 5.5 Mechanical stress . 9

23、5.5.1 General . 9 5.5.2 Tension . 9 5.5.3 Bending . 9 5.5.4 Compression 9 5.6 Compatibility . 9 5.7 Dynamic stresses 10 5.8 Flexing 10 5.9 Corrosion protection and direct burial 10 6 Installation . 10 7 Initial and periodic verification 10 8 Packaging, storage and handling/transportation . 11 8.1 Pa

24、ckaging . 11 8.2 Storage/transportation . 11 8.3 Handling . 11 Bibliography . 12 Table 1 Limiting temperature conditions . 6 Table 2 Recommended fixing distances 7 IEC 60702-3:2016 IEC 2016 3 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ MINERAL INSULATED CABLES AND THEIR TERMINATIONS WITH A RATED VOL

25、TAGE NOT EXCEEDING 750 V Part 3: Guidance for use 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

26、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 Available Specifications (PAS) and Guides (hereafter referred to as “IEC

27、Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with may participate in this preparatory work. International, governmental and non- governmental organizations liaising with the IEC also participate in this preparati

28、on. IEC collaborates closely with the International Organization for Standardization (ISO) in accordance with conditions determined by agreement between the two organizations. 2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international consensus

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30、ade to ensure that the technical content of IEC Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any misinterpretation by any end user. 4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications trans

31、parently to the maximum extent possible in their national and regional publications. Any divergence between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter. 5) IEC itself does not provide any attestation of conformity. Independent c

32、ertification bodies provide conformity assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any services carried out by independent certification bodies. 6) All users should ensure that they have the latest edition of this publication. 7) No liability

33、 shall attach to IEC or its directors, employees, servants or agents including individual experts and members of its technical committees and IEC National Committees for any personal injury, property damage or other damage of any nature whatsoever, whether direct or indirect, or for costs (including

34、 legal fees) and expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC Publications. 8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is indispensable for the correct application of this

35、 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. International Standard IEC 60702-3 has been prepared by IEC technical committ

36、ee 20: Electric cables. This first edition of IEC 60702-3 is based on CENELEC HD 586.3. The text of this standard is based on the following documents: FDIS Report on voting 20/1618/FDIS 20/1623/RVD Full information on the voting for the approval of this standard can be found in the report on voting

37、indicated in the above table. This publication has been drafted in accordance with the ISO/IEC Directives, Part 2. 4 IEC 60702-3:2016 IEC 2016 A list of all parts in the IEC 60702 series, published under the general title Mineral insulated cables and their terminations with a rated voltage not excee

38、ding 750 V, 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 website under “http:/webstore.iec.ch“ in the data related to the specific publication. At this date, the publication will b

39、e reconfirmed, withdrawn, replaced by a revised edition, or amended. IEC 60702-3:2016 IEC 2016 5 MINERAL INSULATED CABLES AND THEIR TERMINATIONS WITH A RATED VOLTAGE NOT EXCEEDING 750 V Part 3: Guidance for use 1 Scope This part of IEC 60702 provides guidance for the safe use of mineral insulated ca

40、bles and their terminations with a rated voltage not exceeding 750 V which are specified in IEC 60702- 1 and IEC 60702-2. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references,

41、only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. IEC 60364-1, Low-voltage electrical installations Part 1: Fundamental principles, assessment of general characteristics, definitions 3 Terms and definitions For t

42、he purposes of this document, the terms and definitions given in IEC 60364-1 apply. 4 Safety 4.1 Fundamental considerations 4.1.1 Safety of a cable means that the product does not present an unacceptable risk of danger to life or property whilst being used in its intended manner. 4.1.2 Unless otherw

43、ise stated, cables shall not be used for any other purpose than the transmission and distribution of electricity. 4.1.3 The test methods, test parameters and requirements described in IEC 60702-1 and IEC 60702-2 are only provided for the purpose of checking design with respect to safety and quality

44、assurance. They shall not be regarded as providing guidance as to whether the cables are suitable for service under conditions equivalent to the test conditions. 4.2 General 4.2.1 All conductors and cables shall be selected so as to be suitable for the voltages and currents likely to occur under all

45、 conditions which are or shall have been anticipated in the equipment or installation in which they are used. 4.2.2 Cables shall be constructed, installed, protected, used and maintained so as to prevent danger so far as it is reasonably practical. 4.2.3 The limiting temperature conditions under whi

46、ch mineral insulated cables and terminations can reasonably be expected to operate safely under normal circumstances are given in Table 1. 6 IEC 60702-3:2016 IEC 2016 These conditions are those which are considered capable of ensuring a reasonable length of life in service. It has been accepted as r

47、easonable by experience and use of the cable and terminations in the particular installations. Table 1 Limiting temperature conditions Temperature condition Limit value Maximum continuous sheath operating temperature, exposed to touch or in contact with combustible material: bare copper sheath 70 C

48、covered copper sheath 70 C Maximum continuous sheath operating temperature, not exposed to touch, and not in contact with combustible material: bare copper sheath and 105 C seals 105 C bare copper sheath and 250 C seals 250 C Maximum conductor temperature under fault conditions, exposed to touch or

49、in contact with combustible material: bare or covered sheath 160 C aMaximum conductor temperature under fault conditions, not exposed to touch, and not in contact with combustible material bare copper sheath 250 C aMinimum installation temperature: bare copper sheath bcovered copper sheath cMinimum continuous operating temperature bare copper sheath bcovered copper sheath caSeals shall be suitable for this temperat