1、Vehicles, boats and internal combustion engines Radio disturbance characteristics Limits and methods of measurement for the protectionof on-board receiversBS EN 55025:2008raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI British StandardsNational fo
2、rewordThis British Standard is the UK implementation of EN 55025:2008. It is identi-cal to CISPR 25:2008. It supersedes BS EN 55025:2003, which will be with-drawn on 1 June 2011.The UK participation in its preparation was entrusted by Technical CommitteeGEL/210, EMC - Policy committee, to Subcommitt
3、ee GEL/210/11, EMC prod-uct standards.A list of organizations represented on this committee can be obtained onrequest to its secretary.This publication does not purport to include all the necessary provisions of acontract. Users are responsible for its correct application. BSI 2008ISBN 978 0 580 558
4、62 7ICS 33.100.10; 33.100.20BRITISH STANDARDBS EN 55025:2008Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of the StandardsPolicy and Strategy Committee on Amendments issued since publicationAmd. No. Date Text a
5、ffectedMarch 200931EUROPEAN STANDARD EN 55025 NORME EUROPENNE EUROPISCHE NORM August 2008 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B - 1050
6、 Brussels 2008 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 55025:2008 E ICS 33.100.10; 33.100.20 Supersedes EN 55025:2003English version Vehicles, boats and internal combustion engines - Radio disturbance characteristics - Lim
7、its and methods of measurement for the protection of on-board receivers (CISPR 25:2008) Vhicules, bateaux et moteurs combustion interne - Caractristiques des perturbations radiolectriques - Limites et mthodes de mesure pour la protection des rcepteurs embarqus (CISPR 25:2008) Fahrzeuge, Boote und vo
8、n Verbrennungsmotoren angetriebene Gerte - Funkstreigenschaften - Grenzwerte und Messverfahren fr den Schutz von an Bord befindlichen Empfngern (CISPR 25:2008) This European Standard was approved by CENELEC on 2008-06-01. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations
9、which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CENELEC member. This Europ
10、ean Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CENELEC member into its own language and notified to the Central Secretariat has the same status as the official versions. CENELEC members are t
11、he national electrotechnical committees of Austria, Belgium, Bulgaria, Cyprus, the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain
12、, Sweden, Switzerland and the United Kingdom. BS EN 55025:2008EN 55025:2008 - 2 - Foreword The text of document CISPR/D/344/CDV, future edition 3 of CISPR 25, prepared by CISPR SC D, Electromagnetic disturbances related to electric/electronic equipment on vehicles and internal combustion engine powe
13、red devices, was submitted to the IEC-CENELEC parallel Unique Acceptance Procedure and was approved by CENELEC as EN 55025 on 2008-06-01. This European Standard supersedes EN 55025:2003. The following significant changes were made with respect to EN 55025:2003: addition of required measurements with
14、 both an average detector and a peak or quasi-peak detector; addition of methods and limits for the protection of new analogue and digital radio services, which cover the frequency range up to 2 500 MHz; addition of a new measurement method for components (stripline) as an informative Annex G; addit
15、ion of Annex H; deletion of narrowband / broadband determination; deletion of the annex on rod antenna characterisation (this is now covered by EN 55016-1-4); deletion of the annex on characterisation of shielded enclosure (EN 55025 will be amended when the CISPR/D / CISPR/A Joint Task Force on cham
16、ber validation finishes its work). The following dates were fixed: latest date by which the EN has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2009-03-01 latest date by which the national standards conflicting with the EN have to be wi
17、thdrawn (dow) 2011-06-01 Annex ZA has been added by CENELEC. _ Endorsement notice The text of the International Standard CISPR 25:2008 was approved by CENELEC as a European Standard without any modification. _ BS EN 55025:2008- 3 - EN 55025:2008 Annex ZA (normative) Normative references to internati
18、onal publications with their corresponding European publications The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amend
19、ments) applies. NOTE When an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD applies. Publication Year Title EN/HD Year IEC 60050-161 A1 A2 1990 1997 1998 International Electrotechnical Vocabulary (IEV) - Chapter 161: Electromagnetic compat
20、ibility - - CISPR 12 2007 Vehicles, boats and internal combustion engines - Radio disturbance characteristics - Limits and methods of measurement for the protection of off-board receivers EN 55012 2007 CISPR 16-1-1 A1 A2 2006 2006 2007 Specification for radio disturbance and immunity measuring appar
21、atus and methods - Part 1-1: Radio disturbance and immunity measuring apparatus - Measuring apparatus EN 55016-1-1 A1 A2 2007 2007 2008 CISPR 16-1-2 A1 A2 2003 2004 2006 Specification for radio disturbance and immunity measuring apparatus and methods - Part 1-2: Radio disturbance and immunity measur
22、ing apparatus - Ancillary equipment - Conducted disturbances EN 55016-1-2 A1 A2 2004 2005 2006 CISPR 16-1-4 A1 2007 2007 Specification for radio disturbance and immunity measuring apparatus and methods - Part 1-4: Radio disturbance and immunity measuring apparatus - Ancillary equipment - Radiated di
23、sturbances EN 55016-1-4 A1 2007 2008 CISPR 16-2-3 2006 Specification for radio disturbance and immunity measuring apparatus and methods - Part 2-3: Methods of measurement of disturbances and immunity - Radiated disturbance measurements EN 55016-2-3 2006 ISO 11452-4 2005 Road vehicles - Component tes
24、t methods for electrical disturbances from narrowband radiated electromagnetic energy - Part 4: Bulk current injection (BCI) - - SAE ARP 958.1 2003 Electromagnetic Interference Measurement Antennas; Standard Calibration Method - - BS EN 55025:2008 2 CISPR 25 IEC:2008 CONTENTS FOREWORD.5 INTRODUCTION
25、.7 1 Scope.8 2 Normative references .9 3 Terms and definitions10 4 Requirements common to vehicle and component/module emissions measurement12 4.1 General test requirements and test plan 12 4.1.1 Categories of disturbance sources (as applied in the test plan) .12 4.1.2 Test plan .13 4.1.3 Determinat
26、ion of conformance of EUT with limits .13 4.1.4 Operating conditions15 4.1.5 Test report.15 4.2 Shielded enclosure15 4.3 Absorber-lined shielded enclosure (ALSE).15 4.3.1 Reflection characteristics.15 4.3.2 Size.16 4.3.3 Objects in ALSE 16 4.4 Measuring instrument 16 4.4.1 Spectrum analyser paramete
27、rs 16 4.4.2 Scanning receiver parameters .17 4.5 Power supply.18 5 Measurement of emissions received by an antenna on the same vehicle 19 5.1 Antenna measuring system .19 5.1.1 Type of antenna 19 5.1.2 Measuring system requirements 19 5.2 Method of measurement20 5.3 Examples of limits for vehicle ra
28、diated disturbances23 6 Measurement of components and modules .25 6.1 Test equipment .25 6.1.1 Ground plane.25 6.1.2 Power supply and AN 25 6.1.3 Load Simulator 25 6.1.4 Signal/control line filters 26 6.2 Conducted emissions from components/modules Voltage method 26 6.2.1 General .26 6.2.2 Ground pl
29、ane arrangement 26 6.2.3 Limits for conducted disturbances from components/modules Voltage method .33 6.3 Conducted emissions from components/modules current probe method .34 6.3.1 Test set-up 34 6.3.2 Test procedure 35 6.3.3 Limits for conducted disturbances from components/modules Current probe me
30、thod37 6.4 Radiated emissions from components/modules - ALSE method.38 6.4.1 General .38 6.4.2 Test set-up 39 CISPR 25 IEC:2008 3 6.4.3 Test procedure 41 6.4.4 Limits for radiated disturbances from components/modules ALSE method 47 6.5 Radiated emissions from components/modules TEM cell method .49 6
31、.5.1 General .49 6.5.2 Test set-up 51 6.5.3 Test procedure 52 6.5.4 Limits for radiated disturbances from components/modules TEM cell method54 6.6 Radiated emissions from components/modules Stripline method 56 Annex A (informative) Flow chart for checking the applicability of CISPR 25 57 Annex B (no
32、rmative) Antenna matching unit Vehicle test 58 Annex C (informative) Sheath-current suppressor60 Annex D (informative) Guidance for the determination of the noise floor of active vehicle antennas in the AM and FM Range .61 Annex E (normative) Artificial network .64 Annex F (informative) TEM cell dim
33、ensions .66 Annex G (informative) Radiated emissions from components/modules Stripline method .68 Annex H (informative) Interference to mobile radio communication in the presence of impulsive noise Methods of judging degradation 76 Annex I (informative) Items Under Consideration .80 Bibliography81 F
34、igure 1 Method of determination of conformance for all frequency bands .14 Figure 2 Example of gain curve20 Figure 3 Vehicle-radiated emissions Example for test layout (end view with monopole antenna) .22 Figure 4 Average limit for radiated disturbances from vehicles GPS band 1 567,42 to 1 583,42 MH
35、z .24 Figure 5 Example for the required minimum attenuation of the signal / control line filters 26 Figure 6 Conducted emissions EUT with power return line remotely grounded. .29 Figure 7 Conducted emissions EUT with power return line locally grounded30 Figure 8 Conducted emissions Test layout for a
36、lternators and generators.31 Figure 9 Conducted emissions Test layout for ignition system components.32 Figure 10 Conducted emissions Example of test layout for current probe measurements 36 Figure 11 Test harness bending requirements40 Figure 12 Example of test set-up rod antenna .43 Figure 13 Exam
37、ple of test set-up biconical antenna 44 Figure 14 Example of test set-up log-periodic antenna45 Figure 15 Example of test set-up above 1 GHz .46 Figure 16 Example of average limit for radiated disturbances from components GPS band 1 567,42 to 1 583,42 MHz Class 549 Figure 17 TEM cell (example) 50 4
38、CISPR 25 IEC:2008 Figure 18 Example of arrangement of leads in the TEM cell and to the connector panel 51 Figure 19 Example of the arrangement of the connectors, the lead frame and the dielectric support 52 Figure 20 Example of the TEM cell method test layout .53 Figure B.1 Verification set-up59 Fig
39、ure C.1 Attenuation vs. frequency .60 Figure D.1 Vehicle test set up for equipment noise measurement in the AM/FM range.62 Figure D.2 Vehicle test set up for antenna noise measurement in the AM/FM range.63 Figure E.1 Characteristics of the AN impedance 64 Figure E.2 Example of 5 H AN schematic.65 Fi
40、gure F.1 TEM cell .66 Figure G.1 Example of a basic stripline test setup in a shielded enclosure.70 Figure G.2 Example for a 50 stripline .74 Figure G.3 Example for a 90 stripline .75 Table 1 Spectrum analyser parameters17 Table 2 Scanning receiver parameters.18 Table 3 Antenna types .19 Table 4 Exa
41、mple for limits of disturbance Complete vehicle 23 Table 5 Examples of quasi-peak or peak limits for conducted disturbances Voltage Method .33 Table 6 Examples of average limits for conducted disturbances Voltage Method.34 Table 7 Examples of quasi-peak and peak limits for conducted disturbances - c
42、ontrol/signal lines Current probe method 37 Table 8 Examples of average limits for conducted disturbances - control/signal lines Current probe method 38 Table 9 Examples of quasi-peak or peak limits for radiated disturbances ALSE 47 Table 10 Examples of average limits for radiated disturbances ALSE4
43、8 Table 11 Examples of quasi-peak or peak limits for radiated disturbances TEM cell55 Table 12 Examples of average limits for radiated disturbances TEM Cell 56 Table F.1 Dimensions for TEM cells.67 Table G.1 Examples of quasi-peak or peak limits for radiated disturbances Stripline 71 Table G.2 Examp
44、les of average limits for radiated disturbances Stripline72 CISPR 25 IEC:2008 5 INTERNATIONAL ELECTROTECHNICAL COMMISSION INTERNATIONAL SPECIAL COMMITTEE ON RADIO INTERFERENCE _ VEHICLES, BOATS AND INTERNAL COMBUSTION ENGINES RADIO DISTURBANCE CHARACTERISTICS LIMITS AND METHODS OF MEASUREMENT FOR TH
45、E PROTECTION OF ON-BOARD RECEIVERS FOREWORD 1) The International Electrotechnical 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 question
46、s concerning standardization in the electrical and electronic fields. To this end and in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC Publication(s)”
47、). Their preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with may participate in this preparatory work. International, governmental and non-governmental organizations liaising with the IEC also participate in this preparation. IEC collabor
48、ates closely with the International Organization for Standardization (ISO) in accordance with conditions determined by agreement between the two organizations. 2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international consensus of opinion on t
49、he relevant subjects since each technical committee has representation from all interested IEC National Committees. 3) IEC Publications have the form of recommendations for international use and are accepted by IEC National Committees in that sense. While all reasonable efforts are made to ensure that the technical conte
