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 TRCISPR 18-3:2010(E)INTERNATIONAL SPECIAL COMMITTEE ON RADIO INTERFERENCE THIS PUBLICATION IS
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9、2 11 Fax: +41 22 919 03 00 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 INTERNATIONAL ELECTROTECHNICAL COMMISSION XICS 33.100.01 PRICE CODEI
10、SBN 978-2-88912-018-5INTERNATIONAL SPECIAL COMMITTEE ON RADIO INTERFERENCE Registered trademark of the International Electrotechnical Commission 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 overhea
11、d power lines and associated equipment in order 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 pol
12、luted insulators .10 4.5 Spark and microsparks due 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 publicat
13、ion 11 5.3 CIGR formula 12 5.4 Determination of 80 % level.13 5.5 Conclusions 13 6 Preventive and remedial measures to minimize radio noise generated by bad contacts and their detection and location14 6.1 General .14 6.2 Preventive and remedial measures14 6.3 Methods of detecting and locating bad co
14、ntacts 15 7 Formulae for predetermination of the radio 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
15、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 strength .19 7.3 Evaluation of corona radio noise
16、 field strength due to large tubular conductors 20 8 Figures.22 Annex A (informative) Formulae for predicting the radio noise field strength from the conductors of an overhead line .30 Annex B (informative) Analytical procedure for the predetermination of the radio noise field strength, at a given d
17、istance from an overhead line with large bundle conductors .38 Bibliography45 Figure 1 Bundle conductors .22 Figure 2 Line with conductors in a flat configuration.23 TR CISPR 18-3 IEC:2010(E) 3 Figure 3 Line with conductors in a delta configuration24 Figure 4 Line with conductors in a triangular con
18、figuration.25 Figure 5 Line with conductors in a flat configuration.26 Figure 6 Line with conductors in a delta configuration27 Figure 7 Line with conductors in a triangular configuration.28 Figure 8 Tubular conductors of 40 cm diameter .29 Figure B.1 Designation of the geometrical quantities for th
19、e simplified analytical method .43 Figure B.2 Lateral profiles of the radio noise field strengths produced by the individual phases and of the total field, as calculated in the given example44 Table A.1 Empirical methods, terms of the predetermination formulae developed by several institutions, surv
20、ey32 Table A.2 Empirical methods, complete predetermination formulae developed by several institutions, survey34 Table A.3 Predetermination formulae, examples for calculation of the absolute field strength levels 36 4 TR CISPR 18-3 IEC:2010(E) INTERNATIONAL ELECTROTECHNICAL COMMISSION INTERNATIONAL
21、SPECIAL COMMITTEE ON RADIO INTERFERENCE _ RADIO INTERFERENCE CHARACTERISTICS OF OVERHEAD POWER LINES AND HIGH-VOLTAGE EQUIPMENT Part 3: Code of practice for minimizing the generation of radio noise FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standa
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31、rawn to the Normative references cited in this publication. Use of the referenced 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 n
32、ot be held responsible for identifying any or all such patent rights. The main task of IEC technical committees is to prepare International Standards. However, a technical committee may propose the publication of a technical report when it has collected data of a different kind from that which is no
33、rmally published as an International Standard, for example “state of the art“. CISPR 18-3, which is a technical report, has been prepared by CISPR subcommittee B: Interference relating to industrial, scientific and medical radio-frequency apparatus, to other (heavy) industrial equipment, to overhead
34、 power lines, to high voltage equipment and to electric traction. This second edition cancels and replaces the first edition published in 1986. It is a technical revision. TR CISPR 18-3 IEC:2010(E) 5 This edition includes the following significant technical changes with respect to the previous editi
35、on: while the first edition of CISPR 18-3 only covered recommendations for minimizing the generation of radio noise emanating from high-voltage (HV) power systems, this second edition now also covers a new clause providing formulae for predetermination of the radio noise field strength levels from H
36、V overhead power lines with large conductor bundles. Furthermore, Annex A was accomplished with a collation of predetermination formulae developed and used by several institutions around the world. The tables also contain typical examples of radio noise field strength levels obtained during some mea
37、surements campaigns at several HV overhead power line constructions. The text of this technical report is based on the following documents: DTR Report on voting CISPR/B/495/DTR CISPR/B/503/RVC Full information on the voting for the approval of this technical report can be found in the report on voti
38、ng indicated in the above table. This technical report has been drafted in accordance with the ISO/IEC Directives, Part 2. A list of all parts of the CISPR 18 series can be found, under the general title Radio interference characteristics of overhead power lines and high-voltage equipment, on the IE
39、C website. The committee has decided that the contents of this publication will remain unchanged until the stability date indicated on the IEC web site under “http:/webstore.iec.ch“ in the data related to the specific publication. At this date, the publication will be reconfirmed, withdrawn, replace
40、d by a revised edition, or amended. A bilingual version of this publication may be issued at a later date. 6 TR CISPR 18-3 IEC:2010(E) INTRODUCTION This technical report forms the third of a three-part publication dealing with radio noise generated by electrical power transmission and distribution f
41、acilities (overhead lines and substations). It contains recommendations for minimizing the generation of radio noise emanating from high-voltage (HV) power systems which include, but are not restricted to, HVAC or HVDC overhead power lines, HVAC substations and HVDC converter stations, hardware, etc
42、., in order to promoting protection of radio reception. The recommendations given in this part 3 of the CISPR 18 series are intended to be a useful aid to engineers involved in design, erection and maintenance of overhead lines and HV stations and also to anyone concerned with checking the radio noi
43、se performance of a line to ensure satisfactory protection of radio reception. Information on the physical phenomena involved in the generation of electromagnetic noise fields is found in CISPR/TR 18-1. It also includes the main properties of such fields and their numerical values. CISPR/TR 18-2 con
44、tains recommendations for methods of measurement for use on-site or in a laboratory. It furthermore recommends procedures for determination of limits for the radio noise from HV power systems. This second edition of CISPR 18-3 was adapted to the modern structure and content of technical reports issu
45、ed by IEC. The first edition of CISPR 18-3 underwent thorough edition and adaptation to modern terminology. Furthermore its content was adjusted such as to allow for use of the lateral distance y for the conduction of measurements in the field. The CISPR 18 series does not deal with biological effec
46、ts on living matter or any issues related to exposure in electromagnetic fields. The main content of this technical report is based on CISPR Rec. No. 57 given below: CISPR RECOMMENDATION No. 57 CODE OF PRACTICE FOR MINIMIZING THE GENERATION OF RADIO NOISE The CISPR CONSIDERING a) that the radiation
47、of electromagnetic energy from overhead power lines causes interference to sound and television broadcasting, b) that the level of this noise may be reduced by the design and lay-out of a line, c) that when defects cause unusually high levels of interference there is need to detect and locate these
48、faults, RECOMMENDS That the latest edition of CISPR Publication 18-3, including amendments, be used as guide for minimizing the generation of radio noise caused by overhead power lines. CISPR/TR 18-1 describes the main properties of the physical phenomena involved in the production of disturbing ele
49、ctromagnetic fields by overhead lines and provides numerical values of such fields. In CISPR/TR 18-2 methods of measurement and procedures for determining limits of such radio interference are recommended. This CISPR/TR 18-3 forms a “Code of Practice“ to reduce to a minimum the production of radio noise by power lines and equipment. TR CISPR 18-3 IEC:2010(E) 7 It provides information which is advisable to follow both when designing various fittings and components and when stringin
