1、 TR CISPR 18-3Edition 2.0 2010-06TECHNICAL REPORT Radio interference characteristics of overhead power lines and high-voltage equipment Part 3:Code of practice for minimizing the generation of radio noise TR CISPR 18-3:2010(E)INTERNATIONAL SPECIAL COMMITTEE ON RADIO INTERFERENCE Copyrighted material
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10、 Madison.No further reproduction or distribution is permitted.Uncontrolled when printed.TR CISPR 18-3Edition 2.0 2010-06TECHNICAL REPORT Radio interference characteristics of overhead power lines and high-voltage equipment Part 3:Code of practice for minimizing the generation of radio noise INTERNAT
11、IONAL ELECTROTECHNICAL COMMISSION XICS 33.100.01 PRICE CODEISBN 978-2-88912-018-5INTERNATIONAL SPECIAL COMMITTEE ON RADIO INTERFERENCE Registered trademark of the International Electrotechnical Commission Copyrighted material licensed to BR Demo by Thomson Reuters(Scientific),Inc.,downloaded on Nov-
12、28-2014 by James Madison.No further reproduction or distribution is permitted.Uncontrolled when printed.2 TR CISPR 18-3 IEC:2010(E)CONTENTS FOREWORD.4 INTRODUCTION.6 1 Scope.8 2 Normative references.8 3 Terms and definitions.8 4 Practical design of overhead power lines and associated equipment in or
13、der to control interference to radio broadcast sound and television reception.8 4.1 Overview.8 4.2 Corona on conductors.9 4.3 Corona on metal hardware.9 4.4 Surface discharges on insulators.9 4.4.1 Clean or slightly polluted insulators.9 4.4.2 Very polluted insulators.10 4.5 Spark and microsparks du
14、e to bad contacts,commutation effects.10 4.6 Defects on power lines and associated equipment in service.10 5 Methods of prediction of the reference level of an overhead line.11 5.1 General.11 5.2 Correlation of data given elsewhere in this publication.11 5.3 CIGR formula.12 5.4 Determination of 80%l
15、evel.13 5.5 Conclusions.13 6 Preventive and remedial measures to minimize radio noise generated by bad contacts and their detection and location.14 6.1 General.14 6.2 Preventive and remedial measures.14 6.3 Methods of detecting and locating bad contacts.15 7 Formulae for predetermination of the radi
16、o noise field strength produced by large conductor bundles(more than four sub-conductors)and by tubular conductors.17 7.1 Basic principles.17 7.2 Calculation of corona radio noise field strengths due to large bundles.18 7.2.1 Procedure for the predetermination of the radio noise field strength.18 7.2.2 Calculation of the excitation function in heavy rain.18 7.2.3 Correction factor to evaluate the excitation function in other weather categories.19 7.2.4 Calculation of the radio noise field str
