1、 Collection of SANS standards in electronic format (PDF) 1. Copyright This standard is available to staff members of companies that have subscribed to the complete collection of SANS standards in accordance with a formal copyright agreement. This document may reside on a CENTRAL FILE SERVER or INTRA
2、NET SYSTEM only. Unless specific permission has been granted, this document MAY NOT be sent or given to staff members from other companies or organizations. Doing so would constitute a VIOLATION of SABS copyright rules. 2. Indemnity The South African Bureau of Standards accepts no liability for any
3、damage whatsoever than may result from the use of this material or the information contain therein, irrespective of the cause and quantum thereof. ISBN 978-0-626-22784-5 SANS 212:2009Edition 4.1CISPR 12:2009Edition 6.1SOUTH AFRICAN NATIONAL STANDARD Vehicles, boats, and internal combustion engines R
4、adio disturbance characteristics Limits and methods of measurement for the protection of off-board receivers This national standard is the identical implementation of CISPR 12:2009 and is adopted with the permission of the International Electrotechnical Commission (International Special Committee on
5、 Radio Interference). Published by SABS Standards Division 1 Dr Lategan Road Groenkloof Private Bag X191 Pretoria 0001Tel: +27 12 428 7911 Fax: +27 12 344 1568 www.sabs.co.za SABS SANS 212:2009 Edition 4.1 CISPR 12:2009 Edition 6.1 Table of changes Change No. Date Scope CISPR amdt 1 2009 Amended to
6、include traction batteries in the scope, and add floor treatment machines under the definitions for vehicle and device. National foreword This South African standard was approved by National Committee SABS TC 73, Electromagnetic compatibility, in accordance with procedures of the SABS Standards Divi
7、sion, in compliance with annex 3 of the WTO/TBT agreement. This SANS document was published in May 2009. This SANS document supersedes SANS 212:2007 (edition 4). CISPR 12Edition 6.1 2009-03INTERNATIONAL STANDARD NORME INTERNATIONALEVehicles, boats and internal combustion engines Radio disturbance ch
8、aracteristics 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 INTERNATIONAL ELECTROTECHNICAL COMMISSION C
9、OMMISSION ELECTROTECHNIQUE INTERNATIONALE CKICS 27.020; 33.100.10 PRICE CODECODE PRIXISBN 2-8318-1029-3INTERNATIONAL SPECIAL COMMITTEE ON RADIO INTERFERENCE COMIT INTERNATIONAL SPCIAL DES PERTURBATIONS RADIOLECTRIQUES Registered trademark of the International Electrotechnical Commission Marque dpose
10、 de la Commission Electrotechnique Internationale SANS 212:2009This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS . 2 CISPR 12 IEC:2007+A1:2009 CONTENTS FOREWORD.5 INTRODUCTION.7 1 Scope.8 2 Normative references .9 3 Terms and definitions .9 4 Li
11、mits of disturbance 11 4.1 Determination of 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
12、.1.3 Antenna types .16 5.1.4 Accuracy .16 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
13、 Devices .23 5.4 Data collection 24 6 Methods 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 Sing
14、le sample25 6.4.2 Multiple samples (optional)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 anal
15、ysis of the results of measurements .26 Annex B (normative) Procedure to determine an alternative emission limit for measurements at 3 m antenna distance28 SANS 212:2009This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .CISPR 12 IEC:2007+A1:2009
16、 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 (inform
17、ative) 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 .54 Bibliography55 Figure 1 Met
18、hod 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 boat
19、s 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 fact
20、or 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.6 Ri
21、ght-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 ignition
22、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 com
23、ponents 48 Figure F.6 Top view of the test set-up for distributor rotors 49 SANS 212:2009This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS . 4 CISPR 12 IEC:2007+A1:2009 Figure F.7 Side view of the test set-up for ready-to-use resistive ignition
24、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 SANS 212:2009This s tandard may only be used and printed
25、by approved subscription and freemailing clients of the SABS .CISPR 12 IEC:2007+A1:2009 5 INTERNATIONAL ELECTROTECHNICAL COMMISSION INTERNATIONAL SPECIAL COMMITTEE ON RADIO INTERFERENCE _ VEHICLES, BOATS AND INTERNAL COMBUSTION ENGINES RADIO DISTURBANCE CHARACTERISTICS LIMITS AND METHODS OF MEASUREM
26、ENT FOR THE PROTECTION OF OFF-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 a
27、ll questions 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 Publ
28、ication(s)”). 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. I
29、EC collaborates 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 o
30、pinion on the 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 t
31、o ensure that the technical content of IEC Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any misinterpretation by any end user. 4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications transparen
32、tly to the maximum extent possible in their national and regional publications. Any divergence between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter. 5) IEC provides no marking procedure to indicate its approval and cannot be rend
33、ered responsible for any equipment declared to be in conformity with an IEC Publication. 6) All users should ensure that they have the latest edition of this publication. 7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and members of i
34、ts technical committees and IEC National Committees for any personal injury, property damage or other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any ot
35、her IEC Publications. 8) Attention is drawn 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 th
36、e 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 disturbances related to electric/electronic equipment on vehicles and internal combustion powered de
37、vices. This consolidated version of CISPR 12 consists of the sixth edition (2007) documents CISPR/D/322/CDV and CISPR/D/341/RVC and its amendment 1 (2009) documents CISPR/D/354/CDV and CISPR/D/361/RVC. The technical content is therefore identical to the base edition and its amendment and has been pr
38、epared for user convenience. It bears the edition number 6.1. SANS 212:2009This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS . 6 CISPR 12 IEC:2007+A1:2009 A vertical line in the margin shows where the base publication has been modified by amendm
39、ent 1. The following changes were made with respect to the previous edition: deletion of narrowband / broadband determination general improvement of wording This publication has been drafted in accordance with the ISO/IEC Directives, Part 2. The committee has decided that the contents of the base pu
40、blication and its amendments will remain unchanged until the maintenance result 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, replaced by a revised edition, or amended. S
41、ANS 212:2009This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .CISPR 12 IEC:2007+A1:2009 7 INTRODUCTION There is a specific need for standards to define acceptable radio frequency performance of all electrical/electronic products. CISPR 12 has b
42、een developed to serve the road vehicle and related industries with test methods 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
43、environment. It has been extremely effective in protecting the radio environment outside the vehicle. SANS 212:2009This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS . 8 CISPR 12 IEC:2007+A1:2009 VEHICLES, BOATS AND INTERNAL COMBUSTION ENGINES RA
44、DIO 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 broadcast receivers in the frequency range of 30 MHz to 1 000 MHz when used in the residential environm
45、ent. 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 device. NOTE 1 Experience has shown that compliance with this standard may provide satisfactory protec
46、tion 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 emission of electromagnetic energy which may cause interference to radio reception and which is emitt
47、ed 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 be tested in the same manner as vehicles except where they have unique characteristics as explicit
48、ly stated in this standard; c) devices equipped with internal combustion engines or traction batteries (see 3.3). See Annex G for a flow chart to help determine the applicability of CISPR 12. This standard does not apply to aircrafts, household appliances, traction systems (railway, tramway and elec
49、tric trolley bus), or to incomplete vehicles. 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. NOTE 2 Protection of receivers used on board the same vehicle as the disturbance sour
