IEC TS 61244-3-2005 Long-term radiation ageing in polymers - Part 3 Procedures for in-service monitoring of low-voltage cable materials《高聚物的长期辐射老化.第3部分 低压电缆材料的使用中监测规程》.pdf
《IEC TS 61244-3-2005 Long-term radiation ageing in polymers - Part 3 Procedures for in-service monitoring of low-voltage cable materials《高聚物的长期辐射老化.第3部分 低压电缆材料的使用中监测规程》.pdf》由会员分享,可在线阅读,更多相关《IEC TS 61244-3-2005 Long-term radiation ageing in polymers - Part 3 Procedures for in-service monitoring of low-voltage cable materials《高聚物的长期辐射老化.第3部分 低压电缆材料的使用中监测规程》.pdf(36页珍藏版)》请在麦多课文档分享上搜索。
1、 TECHNICAL SPECIFICATION IECTS 61244-3Second edition 2005-11Long-term radiation ageing in polymers Part 3: Procedures for in-service monitoring of low-voltage cable materials Reference number IEC/TS 61244-3:2005(E) Publication numbering As from 1 January 1997 all IEC publications are issued with a d
2、esignation in the 60000 series. For example, IEC 34-1 is now referred to as IEC 60034-1. Consolidated editions The IEC is now publishing consolidated versions of its publications. For example, edition numbers 1.0, 1.1 and 1.2 refer, respectively, to the base publication, the base publication incorpo
3、rating amendment 1 and the base publication incorporating amendments 1 and 2. Further information on IEC publications The technical content of IEC publications is kept under constant review by the IEC, thus ensuring that the content reflects current technology. Information relating to this publicati
4、on, including its validity, is available in the IEC Catalogue of publications (see below) in addition to new editions, amendments and corrigenda. Information on the subjects under consideration and work in progress undertaken by the technical committee which has prepared this publication, as well as
5、 the list of publications issued, is also available from the following: IEC Web Site (www.iec.ch) Catalogue of IEC publications The on-line catalogue on the IEC web site (www.iec.ch/searchpub) enables you to search by a variety of criteria including text searches, technical committees and date of pu
6、blication. On-line information is also available on recently issued publications, withdrawn and replaced publications, as well as corrigenda. IEC Just Published This summary of recently issued publications (www.iec.ch/online_news/ justpub) is also available by email. Please contact the Customer Serv
7、ice Centre (see below) for further information. Customer Service Centre If you have any questions regarding this publication or need further assistance, please contact the Customer Service Centre: Email: custserviec.ch Tel: +41 22 919 02 11 Fax: +41 22 919 03 00 TECHNICAL SPECIFICATION IEC TS 61244-
8、3Second edition 2005-11Long-term radiation ageing in polymers Part 3: Procedures for in-service monitoring of low-voltage cable materials PRICE CODE IEC 2005 Copyright - all rights reserved No part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanica
9、l, including photocopying and microfilm, without permission in writing from the publisher. International Electrotechnical Commission, 3, rue de Varemb, PO Box 131, CH-1211 Geneva 20, Switzerland Telephone: +41 22 919 02 11 Telefax: +41 22 919 03 00 E-mail: inmailiec.ch Web: www.iec.ch U For price, s
10、ee current catalogue Commission Electrotechnique Internationale International Electrotechnical Commission 2 TS 61244-3 IEC:2005(E) CONTENTS FOREWORD.4 INTRODUCTION.6 1 Scope.7 2 Normative references .7 3 Abbreviations .7 4 Requirements of a monitoring technique.8 5 Techniques available8 5.1 General
11、.8 5.2 Local tests without sampling9 5.3 Local tests with micro-sampling.11 6 Summary14 Bibliography28 Figure 1 Schematic diagram showing the operating principles of the sonic velocity meter 1.16 Figure 2 Sonic velocity test results 317 Figure 3 Variation in IR absorbance with wavelength for PVC mat
12、erial and the use of first derivative to eliminate baseline shifts 118 Figure 4 Correlation of first derivative of IR absorbance at 1 640 nm to 1 650 nm and elongation at break for thermal ageing of PVC at 110 C 1 .19 Figure 5 Schematic diagram and photographs of prototype torque tester .20 Figure 6
13、 Elongation at break versus torque value for flame-retardant PVC cables thermally aged at 158 C 5 .21 Figure 7 Elongation at break versus torque value for PVC cables exposed to sequential radiation ageing to 0,5 MGy and thermal ageing at 120 C 521 Figure 8 Elongation at break versus torque value for
14、 PVC cables thermally aged at 120 C 5 .22 Figure 9 Correlation of tensile elongation with modulus measurements made using the modulus profiling apparatus for a CSPE jacket aged at the five indicated temperatures 6 .22 Figure 10 Correlation of tensile elongation with modulus measurements made using t
15、he modulus profiling apparatus for a CP jacket aged at the three indicated temperatures (from Reference 8) 23 Figure 11 Correlation of tensile elongation with modulus measurements made using the modulus profiling apparatus for a CSPE jacket aged at the four indicated combined environments 9 .23 Figu
16、re 12 Correlation of tensile elongation with NMR relaxation time measurements for a CP jacket aged at the three indicated temperatures (from Reference 8)24 Figure 13 Correlation of tensile elongation with NMR relaxation time measurements for a XLPO insulation aged at the two indicated temperatures 1
17、224 Figure 14 Carbonyl absorbance as a function of the radiation dose for XLPE 1525 TS 61244-3 IEC:2005(E) 3 Figure 15 Carbonyl absorbance as a function of thermal ageing for XLPE 14.25 Figure 16 Correlation of tensile elongation with solvent uptake factor for a CP jacket aged at the three indicated
18、 temperatures 8.26 Figure 17 Elongation results compared to uptake and gel results for XLPE insulation aged at 130 C 18.26 Figure 18 Elongation results compared to uptake and gel results for an XLPO insulation aged at 125 C 18.27 Table 1 Summary of currently available techniques for cable condition
19、monitoring.15 4 TS 61244-3 IEC:2005(E) INTERNATIONAL ELECTROTECHNICAL COMMISSION _ LONG-TERM RADIATION AGEING IN POLYMERS Part 3: Procedures for in-service monitoring of low-voltage cable materials FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standa
20、rdization 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 this end and in addition to other activities, IEC publishes Inte
21、rnational Standards, Technical Specifications, Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with may participat
22、e in this preparatory work. International, governmental and non- governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely with the International Organization for Standardization (ISO) in accordance with conditions determined by agreement between
23、 the two organizations. 2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international consensus of opinion on the relevant subjects since each technical committee has representation from all interested IEC National Committees. 3) IEC Publications
24、have the form of recommendations for international use and are accepted by IEC National Committees in that sense. While all reasonable efforts are made 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 m
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