1、BRITISH STANDARDBS EN 55012:2007Vehicles, boats and internal combustion engines Radio disturbance characteristics Limits and methods of measurement for the protection of off-board receiversICS 27.020; 33.100.10g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g
2、50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58+A1:2009National forewordThis British Standard is the UK implementation of EN 55012:2007+A1:2009. It is identical to CISPR 12:2007, incorporating amendment 1:2009. It supersedes BS EN 55012:
3、2002 which will be withdrawn 1 September 2010 and BS EN 55012:2007 which will be withdrawn 1 July 2012.The start and finish of text introduced or altered by amendment is indicated in the text by tags. Tags indicating changes to IEC text carry the number of the IEC amendment. For example, text altere
4、d by IEC amendment 1 is indicated by !“.The UK participation in its preparation was entrusted by Technical Committee GEL/210, EMC Policy committee, to Subcommittee GEL/210/11, EMC product standards.A list of organizations represented on this subcommittee can be obtained on request to its secretary.T
5、his publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunity from legal obligations.BS EN 55012:2007+A1:2009This British Standard was published under the authority o
6、f the Standards Policy and Strategy Committee on 29 February 2008 BSI 2010Amendments/corrigenda issued since publicationDate Comments 31 January 2010 Implementation of IEC amendment 1:2009 with CENELEC endorsement A1:2009ISBN 978 0 580 61545 0EUROPEAN STANDARD EN 55012:2007+A1 NORME EUROPENNE EUROPI
7、SCHE NORM July 2009 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B - 1050 Brussels 2007 CENELEC - All rights of exploitation in any form and by
8、 any means reserved worldwide for CENELEC members. Ref. No. EN 55012:2007 E ICS 27.020; 33.100.10 Supersedes EN 55012:2002 + A1:2005English version Vehicles, boats and internal combustion engines - Radio disturbance characteristics - Limits and methods of measurement for the protection of off-board
9、receivers (CISPR 12:2007) Vhicules, bateaux et moteurs combustion interne - Caractristiques de perturbation radiolectrique - Limites et mthodes de mesure pour la protection des rcepteurs extrieurs (CISPR 12:2007) Fahrzeuge, Boote und von Verbrennungsmotoren angetriebene Gerte - Funkstreigenschaften
10、- Grenzwerte und Messverfahren zum Schutz von auerhalb befindlichen Empfngern (CISPR 12:2007) This European Standard was approved by CENELEC on 2007-09-01. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard t
11、he 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 European Standard exists in three official versions (English, French, G
12、erman). 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 the national electrotechnical committees of Austria, Belgium, Bulga
13、ria, 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, Sweden, Switzerland and the United Kingdom. Foreword The text of
14、 document CISPR/D/322/CDV, future edition 6 of CISPR 12, prepared by CISPR SC D, Electromagnetic disturbances related to electric/electronic equipment on vehicles and internal combustion engine powered devices, was submitted to the IEC-CENELEC parallel Unique Acceptance Procedure and was approved by
15、 CENELEC as EN 55012 on 2007-09-01. This European Standard supersedes EN 55012:2002 + A1:2005. The following changes were made with respect to EN 55012:2002 + A1:2005: deletion of narrowband / broadband determination; general improvement of wording. The following dates were fixed: latest date by whi
16、ch the EN has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2008-06-01 latest date by which the national standards conflicting with the EN have to be withdrawn (dow) 2010-09-01 This European Standard has been prepared under a mandate giv
17、en to CENELEC by the European Commission and the European Free Trade Association and covers essential requirements of EC Directive EMC (2004/108/EC). See Annex ZZ. Annexes ZA and ZZ have been added by CENELEC. _ Endorsement notice The text of the International Standard CISPR 12:2007 was approved by
18、CENELEC as a European Standard without any modification. _ 2 Foreword to amendment A1 The text of document CISPR/D/354/CDV, future amendment 1 to CISPR 12:2007, prepared by CISPR SC D, Electromagnetic disturbances related to electric/electronic equipment on vehicles and internal combustion engine po
19、wered devices, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as amendment A1 to EN 55012:2007 on 2009-07-01. The following dates were fixed: latest date by which the amendment has to be implemented at national level by publication of an identical national standard or by
20、endorsement (dop) 2010-04-01 latest date by which the national standards conflicting with the amendment have to be withdrawn (dow) 2012-07-01 _ Endorsement notice The text of amendment 1:2009 to the International Standard CISPR 12:2007 was approved by CENELEC as an amendment to the European Standard
21、 without any modification. _ BS EN 55012:2007+A1:2009CONTENTS INTRODUCTION.6 1 Scope.7 2 Normative references .8 3 Terms and definitions .8 4 Limits of disturbance 104.1 Determination of conformance of vehicle/boat/device with limits10 4.2 Peak and quasi-peak detector limits 12 4.3 Average detector
22、limit12 5 Methods of measurement .13 5.1 Measuring instrument 13 5.1.1 Spectrum analyser parameters 14 5.1.2 Scanning receiver parameters .14 5.1.3 Antenna types .15 5.1.4 Accuracy .15 5.2 Measuring location requirements.16 5.2.1 Outdoor test site (OTS) requirements 16 5.2.2 Absorber lined shielded
23、enclosure (ALSE) requirements18 5.2.3 Antenna requirements .19 5.3 Test object conditions21 5.3.1 General .21 5.3.2 Vehicles and boats 21 5.3.3 Devices .22 5.4 Data collection 23 6 Methods of checking for compliance with CISPR requirements .23 6.1 General .23 6.2 Application of limit curves23 6.2.1
24、Measurements under dry conditions 23 6.2.2 Measurements under wet conditions23 6.3 Evaluation (general) 24 6.4 Type approval test.24 6.4.1 Single sample24 6.4.2 Multiple samples (optional)24 6.5 Surveillance (quality audit) of series production.24 6.5.1 Single sample24 6.5.2 Multiple samples (option
25、al)24 6.6 Quick prototype check for development testing (optional, quasi-peak detector emissions only) .24 Annex A (normative) Statistical analysis of the results of measurements .25 Annex B (normative) Procedure to determine an alternative emission limit for measurements at 3 m antenna distance27 3
26、 BS EN 55012:2007+A1:2009Annex C (informative) Antenna and transmission line maintenance and characterization 29 Annex D (informative) Construction features of motor vehicles affecting the emission of ignition noise 34 Annex E (informative) Measurement of the insertion loss of ignition noise suppres
27、sors35 Annex F (informative) Methods of measurement to determine the attenuation characteristics of ignition noise suppressors for high voltage ignition systems 41 Annex G (informative) Flow chart for checking the applicability of CISPR 12.51 Annex H (informative) Items under consideration .52 Bibli
28、ography53 Figure 1 Method of determination of conformance11 Figure 2 Limit of disturbance (peak and quasi-peak detector) at 10 m antenna distance12 Figure 3 Limits of disturbance (average detector) at 10 m antenna distance 13 Figure 4 Measuring site (OTS) for vehicles and devices.17 Figure 5 Measuri
29、ng site (OTS) for boats 18 Figure 6 Antenna position to measure emissions Vertical polarization.19 Figure 7 Antenna position to measure emissions Horizontal polarization.20 Figure B.1 Determination of the maximum antenna angle.27 Figure B.2 Calculation of the resulting gain reduction a28 Figure C.1
30、Alternate antenna factor determination (10 m antenna distance).33 Figure E.1 Test circuit37 Figure E.2 General arrangement of the test box.37 Figure E.3 Details of the test box lid 38 Figure E.4 Details of the test box .38 Figure E.5 Straight spark-plug ignition noise suppressor (screened or unscree
31、ned) .39 Figure E.6 Right-angle spark-plug ignition noise suppressor (screened or unscreened)39 Figure E.7 Noise suppression spark-plug .39 Figure E.8 Resistive distributor brush 39 Figure E.9 Noise suppressor in distributor cap .40 Figure E.10 Noise suppression distributor rotor40 Figure E.11 Noise
32、 suppression ignition cable (resistive or reactive) .40 Figure F.1 Test set-up, side view .43 Figure F.2 Test set-up, top view.44 Figure F.3 Pressure chamber with ventilation.45 Figure F.4 Top view of the set-up of a right-angle ignition noise suppressor for distributors46 Figure F.5 Location of hig
33、h voltage ignition components 47 Figure F.6 Top view of the test set-up for distributor rotors 48 4 Annex ZA (normative) Normative references to international publications with theircorresponding European publications54Annex ZZ (informative) Coverage of Essential Requirements of EC Directives.55BS E
34、N 55012:2007+A1:2009Figure F.7 Side view of the test set-up for ready-to-use resistive ignition cables 49 Table 1 Spectrum analyser parameters14 Table 2 Scanning receiver parameters.14 Table 3 Internal combustion engine operating speeds22 Table A.1 Statistical factors .25 Table A.2 Example of freque
35、ncy sub-bands .26 Table F.1 Limits .41 5 BS EN 55012:2007+A1:2009INTRODUCTION There is a specific need for standards to define acceptable radio frequency performance of all electrical/electronic products. CISPR 12 has been developed to serve the road vehicle and related industries with test methods
36、and limits that provide satisfactory protection for radio reception. CISPR 12 has been used for many years as a regulatory requirement in numerous countries, to provide protection for radio receivers in the residential environment. It has been extremely effective in protecting the radio environment
37、outside the vehicle. 6 BS EN 55012:2007+A1:2009VEHICLES, BOATS AND INTERNAL COMBUSTION ENGINES RADIO DISTURBANCE CHARACTERISTICS LIMITS AND METHODS OF MEASUREMENT FOR THE PROTECTION OF OFF-BOARD RECEIVERS 1 Scope The limits in this International Standard are designed to provide protection for broadc
38、ast receivers in the frequency range of 30 MHz to 1 000 MHz when used in the residential environment. Compliance with this standard may not provide adequate protection for new types of radio transmissions or receivers used in the residential environment nearer than 10 m to the vehicle, boat or devic
39、e. NOTE 1 Experience has shown that compliance with this standard may provide satisfactory protection for receivers of other types of transmissions when used in the residential environment, including radio transmissions in frequency ranges other than that specified. This standard applies to the emis
40、sion of electromagnetic energy which may cause interference to radio reception and which is emitted from a) vehicles propelled by an internal combustion engine, electrical means or both (see 3.1); b) boats propelled by an internal combustion engine, electrical means or both (see 3.2). Boats are to b
41、e tested in the same manner as vehicles except where they have unique characteristics as explicitly stated in this standard; c) devices equipped with internal combustion engines (see 3.3). See Annex G for a flow chart to help determine the applicability of CISPR 12. NOTE 2 Protection of receivers us
42、ed on board the same vehicle as the disturbance source(s) are covered by CISPR 25. The measurement of electromagnetic disturbances while the vehicle is connected to power mains for charging is not covered in this standard. The user is referred to appropriate IEC and CISPR standards which define meas
43、urement techniques and limits for this condition. Annex H lists work being considered for future revisions. Residential Environment 7 or traction batteriesThis standard does not apply to aircrafts, household appliances, traction systems (railway, tramway and electric trolley bus), or to incomplete v
44、ehicles. In the case of a dual-mode trolley bus (e.g. propelled by power from either a.c./d.c. mains or an internal combustion engine), the internal combustion propulsion system shall be included, but the a.c./d.c. mains portion of the vehicle propulsion system shall be excluded from this standard.
45、! “!“BS EN 55012:2007+A1:20092 Normative references 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 amendments) applie
46、s. IEC 60050-161, International Electrotechnical Vocabulary (IEV) Chapter 161: Electro-magnetic compatibility CISPR 16-1-1:2006, Specification for radio disturbance and immunity measuring apparatus and methods Part 1-1: Radio disturbance and immunity measuring apparatus Measuring apparatus CISPR 16-
47、1-3:2004, Specification for radio disturbance and immunity measuring apparatus and methods Part 1-3: Radio disturbance and immunity measuring apparatus Ancillary equipment Disturbance power CISPR 16-1-4:2007, Specification for radio disturbance and immunity measuring apparatus and methods Part 1-4:
48、Radio disturbance and immunity measuring apparatus Ancillary equipment Radiated disturbances 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 CISPR 25, R
49、adio disturbance characteristics for the protection of receivers used on board vehicles, boats, and on devices Limits and methods of measurement 3 Terms and definitions For the purpose of this document, the terms and definitions contained in IEC 60050-161 as well as the following apply. 3.2 boat vessel intended to be used on the surface of water, its length being no greater than 15 m 3.4 impulsive ignit
