IEC-TS-61244-3-2005.pdf
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1、 TECHNICAL SPECIFICATION IEC TS 61244-3 Second edition 2005-11 Long-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) Copyright International Electrotechnical Commission Provided by IHS under license
2、with IECLicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/10/2007 04:50:58 MSTNo reproduction or networking permitted without license from IHS -,-,- Publication numbering As from 1 January 1997 all IEC publications are issued with a designation in the 60000 series. For example,
3、 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 incorporating amendment 1 and the base publication
4、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 publication, including its validity, is available in
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8、on. 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 Copyright International Electrotechnical Commission Provided by IHS under license
9、 with IECLicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/10/2007 04:50:58 MSTNo reproduction or networking permitted without license from IHS -,-,- TECHNICAL SPECIFICATION IEC TS 61244-3 Second edition 2005-11 Long-term radiation ageing in polymers Part 3: Procedures for in-s
10、ervice 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 mechanical, including photocopying and microfilm, without permission in writing from the publisher
11、. 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, see current catalogue Commission Electrotechnique Internationale International Electrotech
12、nical Commission Copyright International Electrotechnical Commission Provided by IHS under license with IECLicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/10/2007 04:50:58 MSTNo reproduction or networking permitted without license from IHS -,-,- 2 TS 61244-3 IEC:2005(E) CONTE
13、NTS 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.8 5.2 Local tests without sampling9 5.3 Local tests with micro-sampling.11 6 Summary14 Bibliography28 Figure 1 Schematic diagram showing
14、 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 material and the use of first derivative to eliminate baseline shifts 118 Figure 4 Correlation of first derivative of IR absorbance at 1 640
15、 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 Elongation at break versus torque value for flame-retardant PVC cables thermally aged at 158 C 5 .21 Figure 7 Elongation at break versus
16、 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 PVC cables thermally aged at 120 C 5 .22 Figure 9 Correlation of tensile elongation with modulus measurements made using the modulus pro
17、filing apparatus for a CSPE jacket aged at the five indicated temperatures 6 .22 Figure 10 Correlation of tensile elongation with modulus measurements made using the modulus profiling apparatus for a CP jacket aged at the three indicated temperatures (from Reference 8) 23 Figure 11 Correlation of te
18、nsile elongation with modulus measurements made using the modulus profiling apparatus for a CSPE jacket aged at the four indicated combined environments 9 .23 Figure 12 Correlation of tensile elongation with NMR relaxation time measurements for a CP jacket aged at the three indicated temperatures (f
19、rom Reference 8)24 Figure 13 Correlation of tensile elongation with NMR relaxation time measurements for a XLPO insulation aged at the two indicated temperatures 1224 Figure 14 Carbonyl absorbance as a function of the radiation dose for XLPE 1525 Copyright International Electrotechnical Commission P
20、rovided by IHS under license with IECLicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/10/2007 04:50:58 MSTNo reproduction or networking permitted without license from IHS -,-,- TS 61244-3 IEC:2005(E) 3 Figure 15 Carbonyl absorbance as a function of thermal ageing for XLPE 14.2
21、5 Figure 16 Correlation of tensile elongation with solvent uptake factor for a CP jacket aged at the three indicated 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 resul
22、ts for an XLPO insulation aged at 125 C 18.27 Table 1 Summary of currently available techniques for cable condition monitoring.15 Copyright International Electrotechnical Commission Provided by IHS under license with IECLicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/10/2007
23、04:50:58 MSTNo reproduction or networking permitted without license from IHS -,-,- 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 Ele
24、ctrotechnical 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
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