BS EN 61000-4-8 2010

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Performance criteria B description: During the test, degradation of performance is allowed. However, no change of operating state or stored data is allowed to persist after the test. After the test, the EUT shall continue to operate as intended without operator intervention. No degradation of perfor
BSEN61000-4-8:2010 EUROPEAN STANDARD EN6100048 NORME EUROPEENNE EUROPAISCHE NORM February 2010 Cs33.100.20 Supersedes EN61000-4-8:1993+A1:2001 English version Electromagnetic compatibility(EMc) Part 4-8: Testing and measurement techniques Power frequency magnetic field immunity test (EC61000-4-8:2009) Compatibilite electromagnetique(CEM) Elektromagnetische Vertraglichkeit (EMV) Partie 4-8: Techniques d'essai Teil 4-8: Pruf-und merverfahren et de mesure Prufung der Storfestigkeit gegen Essai d immunite au champ magnetique Magnetfelder mit energietechnischen a la frequence du reseau Frequenzen (CE|61000-48:2009) (EC61000-4-8:2009) This European standard was approved by cenelec on 2010-02-01. CENELEc members are bound to comply with the CEN/CENELEC Internal Regulations 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 European 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 the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, 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, Sloveni Spain, Sweden, Switzerland and the United Kingdom CENELEC European committee for electrotechnical Standardization Comite europeen de normalisation electrotechnique Europaisches Komitee fur Elektrotechnische Normung Central secretariat: Avenue marnix 17. B-1000 Brussels o 2010 CENELEC- All rights of exploitation in any form and by any means reserved worldwide for CENELEC members Ref.No.EN61000-4-8:2010E BSEN61000-4-8:2010 EN610004-8:2010 Foreword The text of document 77A/694/FDIS, future edition 2 of lEC 61000-4-8, prepared by SC77A, Low frequency phenomena, of lEC TC 77, Electromagnetic compatibility, was submitted to the IEC-CENELEC parallel vote and was approved by cenelec as en 61000-4-8 on 2010-02-01 This European Standard supersedes EN 61000-4-8: 1993+A1: 2001 EN 61000-4-8: 2010 includes the following significant technical changes with respe EN 61000-4-8: 1993: the scope is extended in order to cover 60 Hz. Characteristics, performance and verification of the test generator and related inductive coils are revised. Modifications are also introduced in the test set-up(GRP)and test procedure 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)2010-11-01 latest date by which the national standards conflicting with the en have to be withdrawn (doW)2013-0201 Annex Za has been added by cenelec Endorsement notice The text of the International Standard IEC 61000-4-8: 2009 was approved by CEnelec as a European Standard without any modification In the official version, for Bibliography, the following notes have to be added for the standards indicated EC60068-1 NoTE Harmonized as en 50068-1 EC61000-24 NOtE Harmonized as en 61000-2-4 BSEN61000-4-8:2010 3 EN610004-8:2010 Annex zA (normative) Normative references to international 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 amendments) applies NoTE When an international publication has been modified by common modifications, indicated by(mod), the relevant EN/HD ppl ublIcation Year Title EN/HD ear EC60050-161 International Electrotechnical Vocabulary (IEV) Chapter 161: Electromagnetic compatibility BSEN61000-4-8:2010 2 61000-4-8@IEc:2009 CONTENTS 丨 NTRODUCTION. 1 Scope 2 Normative references 3 Terms and definitions 4 Genera 5 Test levels 6 Test equipment. 10 6.1 General 10 6.2 Test generator 10 6.2.1 Current source 1 10 6.2.2 Characteristics and performances of the test generator for different inductive coils 10 6.2.3 Verification of the characteristics of the test generator ..11 6.3 Inductive coil 12 6.3.1 Field distribution 日11 12 6.3.2 Characteristics of the inductive standard coils 1 mx1 m and 1m×2.6m 12 6.3.3 Characteristics of the inductive coils for table top and floor standing equipment… 1 12 6.3.4 Measurement of the inductive coil factor 13 6. 4 Test and auxiliary instrumentation 13 6.4.1 Test instrumentation 13 6.4.2 Auxiliary instrumentation 14 7 Test set-u 14 7.1 Test set-up components 14 7.2 Ground (reference)plane for floor standing equipment .14 7.3 Equipment under test 14 7.4 Test generato 15 75 Inductive coil 15 8 Test procedure 15 8.1 General 15 8.2 Laboratory reference conditions 15 8.2.1 General 15 8.2.2 Climatic conditions 15 8.2.3 Electromagnetic conditions 16 8.3 Carrying out the test 面国国 16 9 Evaluation of the test results 17 10 Test report .......4..8 17 Annex A(normative)Inductive coil calibration method 22 Annex B(normative)Characteristics of the inductive coils 23 Annex c (informative) Selection of the test levels .29 Annex d(informative)Information on power frequency magnetic field strength Bibliography 33 BSEN61000-4-8:2010 61000-4-8c|EC:2009 Figure 1- Example of application of the test field by the immersion method Figure 2 -EXample of schematic circuit of the test generator for power frequency magnetic field 18 Figure 3- EXample of test set-up for table-top equipment .19 Figure 4- Calibration of the standard coils 19 Figure 5-EXample of test set-up for floor-standing equipment 20 Figure 6- Example of investigation of susceptibility to magnetic field by the proximity method with the 1 mx1 m inductive coil 20 Figure 7-Illustration of Helmholtz coils Figure B. 1- Characteristics of the field generated by a square inductive coil (1 m side) in its plane ..25 Figure B 2-3 dB area of the field generated by a square inductive coil (1 m side)in its plane 25 Figure B 3-3 dB area of the field generated by a square inductive coil (1 m side)in the mean orthogonal plane(component orthogonal to the plane of the coil) 26 Figure B 4-3 dB area of the field generated by two square inductive coils (1 m side) 0, 6 m spaced, in the mean orthogonal plane (component orthogonal to the plane of the coils .26 Figure B5-3 dB area of the field generated by two square inductive coils(1 m side) 0. 8 m spaced, in the mean orthogonal plane (component orthogonal to the plane of the coils) 27 Figure B 6-3 dB area of the field generated by a rectangular inductive coil (1 m x 2, 6 m) in its plane 27 Figure B 7-3 dB area of the field generated by a rectangular inductive coil (1 m x 2, 6 m) with ground plane, in the mean orthogonal plane(component orthogonal to the plane or 3.28 in its plane (ground plane as a side of the inductive coil) Figure B8-3 dB area of the field generated by a rectangular inductive coil (1 m x 2, 6 m the coil) 28 Table 1- test levels for continuous field 9 Table 2-Test levels for short duration : 1s to 3 s 10 Table 3- Specification of the generator for different inductive coils 11 Table 4-Verification parameter for the different inductive coils Table D. 1-values of the maximum magnetic field produced by household appliances (results of the measurements of 100 different devices of 25 basic types) 31 Table D 2 -Values of the magnetic field generated by a 400 kV line 31 Table D 3-values of the magnetic field in high voltage sub-station areas .32 Table d. 4-values of the magnetic field in power plants 32 BSEN61000-4-8:2010 6 61000-4-8@IEc:2009 INTRODUCTION This standard is part of the Ec 61000 series of standards, according to the following structure Part 1: General General considerations(introduction, fundamental principles) Definitions terminology Part 2: Environ ment Description of the environment Classification of the environment Compatibility levels Part 3: Limits Emission limits Immunity limits (in so far as they do not fall under the res ponsibility of the product committees) Part 4 Testing and measurement techniques Measurement techniques Testing techniques Part 5: Installation and mitigation guidelines Installation guidelines Mitigation methods and devices Part 9 Miscellaneous Each part is further subdivided into several parts, published either as international standards as technical specifications or technical reports, some of which have already been published as sections. Others will be published with the part number followed by a dash and a second number identifying the subdivision(example: IEC 61000-6-1) This part is an international standard which gives immunity requirements and test procedures related to "power frequency magnetic field BSEN61000-4-8:2010 61000-4-8c|EC:2009 ELECTROMAGNETIC COMPATIBILITY (EMC) Part 4-8: Testing and measurement techniques Power frequency magnetic field immunity test Scope This part of lEc 61000 relates to the immunity requirements of equipment, only under operational conditions, to magnetic disturbances at power frequencies 50 Hz and 60 Hz related to residential and commercial locations. ndustrial installations and power plants medium voltage and high voltage sub-stations The applicability of this standard to equipment installed in different locations is determined by the presence of the phenomenon, as specified in Clause 4. This standard does not consider disturbances due to capacitive or inductive coupling in cables or other parts of the field installation Other IEC standards dealing with conducted disturbances cover these aspects The object of this standard is to establish a common and reproducible basis for evaluating the performance of electrical and electronic equipment for household, commercial and industrial applications when subjected to magnetic fields at power frequency (continuous and short duration field) e standard defines recommended test levels test equipment; test set-up test procedure 2 Normative references he 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 ) applies lEC 60050(161),International Electrotechnical vocabulary (Ev- Chapter 161: Electro magnetic compatibility 3 Terms and definitions For the purposes of this document the following terms and definitions apply to the restricted field of magnetic disturbances as well as the terms and definitions from IEC 60050(161)[EVI current distortion factor ratio of the root-mean square value of the harmonics content of an alternating current to the root-mean square value of the fundamental curren BSEN61000-4-8:2010 61000-4-8@IEc:2009 3.2 EUT equipment under test 3.3 inductive coil conductor loop of defined shape and dimensions, in which flows a current, generating a magnetic field of defined constancy in its plane and in the enclosed volume 3.4 inductive coil factor ratio between the magnetic field strength generated by an inductive coil of given dimensions and the corresponding current value; the field is that measured at the centre of the coil plane without the eut immersion method method of application of the magnetic field to the eUt, which is placed in the centre of an inductive coil(see Figure 1) 3.6 proximity method method of application of the magnetic field to the EUT, where a small inductive coil is moved along the side of the EUT in order to detect particularly sensitive areas 3.7 ground(reference) plane GRP flat conductive surface whose potential is used as a common reference for the magnetic field generator and the auxiliary equipment (the ground plane can be used to close the loop of the inductive coil, as in Figure 5) [EV 161-04-36, modified] 3.8 decoupling network back filter electrical circuit intended to avoid reciprocal influence with other equipment not submitted to the magnetic field immunity test 4 General The magnetic fields to which equipment is subjected may influence the reliable operation of equipment and systems. The following tests are intended to demonstrate the immunity of equipment when subjected to power frequency magnetic fields related to the specific location and installation condition of the equipment(e.g. proximity of equipment to the disturbance source) The power frequency magnetic field is generated by power frequency current in conductors or, more seldom, from other devices (e.g. leakage of transformers)in the proximity of equipment As for the influence of nearby conductors, one should differentiate between the current under normal operating conditions, which produces a steady magnetic field with a comparatively small magnitude

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