1、 TR CISPR 18-2Edition 2.0 2010-06TECHNICAL REPORT Radio interference characteristics of overhead power lines and high-voltage equipment Part 2:Methods of measurement and procedure for determining limits TR CISPR 18-2:2010(E)INTERNATIONAL SPECIAL COMMITTEE ON RADIO INTERFERENCE Copyrighted material l
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10、adison.No further reproduction or distribution is permitted.Uncontrolled when printed.TR CISPR 18-2Edition 2.0 2010-06TECHNICAL REPORT Radio interference characteristics of overhead power lines and high-voltage equipment Part 2:Methods of measurement and procedure for determining limits INTERNATIONA
11、L ELECTROTECHNICAL COMMISSION XBICS 33.100.01 PRICE CODEISBN 978-2-88912-017-8INTERNATIONAL 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-28-
12、2014 by James Madison.No further reproduction or distribution is permitted.Uncontrolled when printed.2 TR CISPR 18-2 IEC:2010(E)CONTENTS FOREWORD.6 INTRODUCTION.8 1 Scope.10 2 Normative references.10 3 Terms and definitions.11 4 Measurements.11 4.1 Measuring instruments.11 4.1.1 Response of a standa
13、rd quasi-peak CISPR measuring receiver to a.c.generated corona noise.11 4.1.2 Other measuring instruments.12 4.2 On-site measurements on HV overhead power lines.12 4.2.1 General.12 4.2.2 Measurements in the frequency range from 0,15 MHz to 30 MHz.12 4.2.3 Measurements in the frequency range from 30
14、MHz to 300 MHz.14 4.3 Statistical evaluation of the radio noise level of a line.15 4.4 Additional information to be given in the report.16 4.5 Measurements on HV equipment in the laboratory.16 4.5.1 Overview.16 4.5.2 State of the test object.17 4.5.3 Test area.17 4.5.4 Atmospheric conditions.18 4.5.
15、5 Test circuit Basic diagram.18 4.5.6 Practical arrangement of the test circuit.18 4.5.7 Test circuit components.19 4.5.8 Measuring receiver connections.19 4.5.9 Mounting and arrangement of test object.21 4.5.10 Measurement frequency.21 4.5.11 Checking of the test circuit.21 4.5.12 Calibration of th
16、e test circuit.21 4.5.13 Test procedure.22 4.5.14 Related observations during the test.23 4.5.15 Data to be given in test report.23 5 Methods for derivation of limits for HV power systems.24 5.1 Overview.24 5.2 Significance of CISPR limits for power lines.24 5.3 Technical considerations for derivation of limits for lines.25 5.3.1 Basic approach.25 5.3.2 Scope.25 5.3.3 Minimum broadcast signal levels to be protected.26 5.3.4 Required signal-to-noise ratio.27 5.3.5 Use of data on radio noise co
