CISPR 12-2007 Vehicles boats and internal combustion engines - Radio disturbance characteristics - Limits and methods of measurement for the protection of off-board receivers《车辆 船舶.pdf

1、 INTERNATIONAL ELECTROTECHNICAL COMMISSION CISPR12COMMISSION LECTROTECHNIQUEINTERNATIONALE Sixth editionSixime dition2007-05Vehicles, boats and internal combustion engines Radio disturbance characteristics Limits and methods of measurement for the protection of off-board receivers Vhicules, bateaux

2、et moteurs combustion interne Caractristiques de perturbation radiolectrique Limites et mthodes de mesure pour la protection des rcepteurs extrieurs Reference number Numro de rfrence CISPR 12:2007 INTERNATIONAL SPECIAL COMMITTEE ON RADIO INTERFERENCE COMIT INTERNATIONAL SPCIAL DES PERTURBATIONS RADI

3、OLECTRIQUESCopyright International Electrotechnical Commission Provided by IHS under license with IECNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2007 IEC, Geneva, Switzerland All rights reserved. Unless otherwis

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16、n Provided by IHS under license with IECNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-INTERNATIONAL ELECTROTECHNICAL COMMISSION CISPR12COMMISSION LECTROTECHNIQUEINTERNATIONALE Sixth editionSixime dition2007-05Vehicles, boats and internal combustion engines Radio

17、disturbance characteristics Limits and methods of measurement for the protection of off-board receivers Vhicules, bateaux et moteurs combustion interne Caractristiques de perturbation radiolectrique Limites et mthodes de mesure pour la protection des rcepteurs extrieurs For price, see current catalo

18、guePour prix, voir catalogue en vigueur XA Commission Electrotechnique InternationaleInternational Electrotechnical Commission PRICE CODE CODE PRIX INTERNATIONAL SPECIAL COMMITTEE ON RADIO INTERFERENCE COMIT INTERNATIONAL SPCIAL DES PERTURBATIONS RADIOLECTRIQUESCopyright International Electrotechnic

19、al Commission Provided by IHS under license with IECNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- 2 CISPR 12 IEC:2007 CONTENTS FOREWORD.5 INTRODUCTION.7 1 Scope.8 2 Normative references .9 3 Terms and definitions .9 4 Limits of disturbance 11 4.1 Determination o

20、f conformance of vehicle/boat/device with limits11 4.2 Peak and quasi-peak detector limits 13 4.3 Average detector limit13 5 Methods of measurement .14 5.1 Measuring instrument 14 5.1.1 Spectrum analyser parameters 15 5.1.2 Scanning receiver parameters .15 5.1.3 Antenna types .16 5.1.4 Accuracy .16

21、5.2 Measuring location requirements.17 5.2.1 Outdoor test site (OTS) requirements 17 5.2.2 Absorber lined shielded enclosure (ALSE) requirements19 5.2.3 Antenna requirements .20 5.3 Test object conditions22 5.3.1 General .22 5.3.2 Vehicles and boats 22 5.3.3 Devices .23 5.4 Data collection 24 6 Meth

22、ods of checking for compliance with CISPR requirements .24 6.1 General .24 6.2 Application of limit curves24 6.2.1 Measurements under dry conditions 24 6.2.2 Measurements under wet conditions24 6.3 Evaluation (general) 25 6.4 Type approval test.25 6.4.1 Single sample25 6.4.2 Multiple samples (option

23、al)25 6.5 Surveillance (quality audit) of series production.25 6.5.1 Single sample25 6.5.2 Multiple samples (optional)25 6.6 Quick prototype check for development testing (optional, quasi-peak detector emissions only) .25 Annex A (normative) Statistical analysis of the results of measurements .26 An

24、nex B (normative) Procedure to determine an alternative emission limit for measurements at 3 m antenna distance28 Copyright International Electrotechnical Commission Provided by IHS under license with IECNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-CISPR 12 IEC:

25、2007 3 Annex C (informative) Antenna and transmission line maintenance and characterization 30 Annex D (informative) Construction features of motor vehicles affecting the emission of ignition noise 35 Annex E (informative) Measurement of the insertion loss of ignition noise suppressors36 Annex F (in

26、formative) Methods of measurement to determine the attenuation characteristics of ignition noise suppressors for high voltage ignition systems 42 Annex G (informative) Flow chart for checking the applicability of CISPR 12.52 Annex H (informative) Items under consideration .53 Bibliography54 Figure 1

27、 Method of determination of conformance12 Figure 2 Limit of disturbance (peak and quasi-peak detector) at 10 m antenna distance13 Figure 3 Limits of disturbance (average detector) at 10 m antenna distance 14 Figure 4 Measuring site (OTS) for vehicles and devices.18 Figure 5 Measuring site (OTS) for

28、boats 19 Figure 6 Antenna position to measure emissions Vertical polarization.20 Figure 7 Antenna position to measure emissions Horizontal polarization.21 Figure B.1 Determination of the maximum antenna angle.28 Figure B.2 Calculation of the resulting gain reduction a29 Figure C.1 Alternate antenna

29、factor determination (10 m antenna distance).34 Figure E.1 Test circuit38 Figure E.2 General arrangement of the test box.38 Figure E.3 Details of the test box lid 39 Figure E.4 Details of the test box .39 Figure E.5 Straight spark-plug ignition noise suppressor (screened or unscreened) .40 Figure E.

30、6 Right-angle spark-plug ignition noise suppressor (screened or unscreened)40 Figure E.7 Noise suppression spark-plug .40 Figure E.8 Resistive distributor brush 40 Figure E.9 Noise suppressor in distributor cap .41 Figure E.10 Noise suppression distributor rotor41 Figure E.11 Noise suppression ignit

31、ion cable (resistive or reactive) .41 Figure F.1 Test set-up, side view .44 Figure F.2 Test set-up, top view.45 Figure F.3 Pressure chamber with ventilation.46 Figure F.4 Top view of the set-up of a right-angle ignition noise suppressor for distributors47 Figure F.5 Location of high voltage ignition

32、 components 48 Figure F.6 Top view of the test set-up for distributor rotors 49 Copyright International Electrotechnical Commission Provided by IHS under license with IECNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- 4 CISPR 12 IEC:2007 Figure F.7 Side view of th

33、e test set-up for ready-to-use resistive ignition cables 50 Table 1 Spectrum analyser parameters15 Table 2 Scanning receiver parameters.15 Table 3 Internal combustion engine operating speeds23 Table A.1 Statistical factors .26 Table A.2 Example of frequency sub-bands .27 Table F.1 Limits .42 Copyrig

34、ht International Electrotechnical Commission Provided by IHS under license with IECNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-CISPR 12 IEC:2007 5 INTERNATIONAL ELECTROTECHNICAL COMMISSION INTERNATIONAL SPECIAL COMMITTEE ON RADIO INTERFERENCE _ VEHICLES, BOATS

35、AND INTERNAL COMBUSTION ENGINES RADIO DISTURBANCE CHARACTERISTICS LIMITS AND METHODS OF MEASUREMENT FOR THE PROTECTION OF OFF-BOARD RECEIVERS FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising all national electrotechnical commi

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45、ttention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of patent rights. IEC shall not be held responsible for identifying any or all such patent rights. International Standard CISPR 12 has been prepared by CISPR subcommittee D: Electromagnetic dist

46、urbances related to electric/electronic equipment on vehicles and internal combustion powered devices. This sixth edition cancels and replaces the fifth edition published in 2001 and its Amendment 1 (2005). This edition constitutes a technical revision. The following changes were made with respect t

47、o the previous edition: deletion of narrowband / broadband determination general improvement of wording Copyright International Electrotechnical Commission Provided by IHS under license with IECNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- 6 CISPR 12 IEC:2007 Th

48、e text of this standard is based on the following documents: Enquiry draft Report on voting CISPR/D/322CDV CISPR/D/341/RVC Full information on the voting for the approval of this standard can be found in the report on voting indicated in the above table. This publication has been drafted in accordance with the ISO/IEC Directives, Part 2. The committee has decided that the contents of this publication will remain unchanged u