IEC 60118-13-2016 Electroacoustics - Hearing aids - Part 13 Electromagnetic compatibility (EMC)《电声学.助听器.第13部分 电磁兼容性(EMC)》.pdf

1、 IEC 60118-13 Edition 4.0 2016-01 INTERNATIONAL STANDARD NORME INTERNATIONALE Electroacoustics Hearing aids Part 13: Electromagnetic compatibility (EMC) lectroacoustique Appareils de correction auditive Partie 13: Compatibilit lectromagntique (CEM) IEC 60118-13:2016-01(en-fr) colour inside THIS PUBL

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19、r cette publication ou si vous avez des questions contactez-nous: csciec.ch. IEC 60118-13 Edition 4.0 2016-01 INTERNATIONAL STANDARD NORME INTERNATIONALE Electroacoustics Hearing aids Part 13: Electromagnetic compatibility (EMC) lectroacoustique Appareils de correction auditive Partie 13: Compatibil

20、it lectromagntique (CEM) INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE ICS 17.140.50; 33.100.20 ISBN 978-2-8322-3098-5 Registered trademark of the International Electrotechnical Commission Marque dpose de la Commission Electrotechnique Internationale Warning! M

21、ake sure that you obtained this publication from an authorized distributor. Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agr. colour inside 2 IEC 60118-13:2016 IEC 2016 CONTENTS FOREWORD . 4 INTRODUCTION . 6 1 Scope 7 2 Normative references 7 3 Terms an

22、d definitions 8 4 Operation and function of the hearing aid 10 5 Specification of EMC environment . 10 6 Requirements for electromagnetic emissions . 10 6.1 Requirements for radiated emissions 10 6.2 Limits of radiated emissions 10 6.3 Procedure for radiated emissions 10 7 Requirements for electroma

23、gnetic immunity 10 7.1 General . 10 7.2 Compliance criteria . 10 7.3 Radiated RF electromagnetic fields . 11 7.3.1 General . 11 7.3.2 Requirements 11 7.3.3 Procedure 13 7.4 Electrostatic Discharge (ESD) . 13 7.4.1 Requirements 13 7.4.2 Procedure 13 7.5 Power frequency magnetic fields . 13 7.5.1 Requ

24、irements 13 7.5.2 Procedure 13 8 Test procedures for immunity to radiated RF electromagnetic fields 13 8.1 General . 13 8.2 Test equipment and RF signal. 13 8.3 Hearing aid test setting . 13 8.4 Determination of gain 14 8.5 Hearing aid output coupling during immunity test 14 8.6 Position of the hear

25、ing aid during immunity test 15 8.7 Measurement of the input related ambient noise (IRAN) 17 8.8 Measurement of the output related interference level (ORIL) . 17 8.9 Calculation of the input related interference level (IRIL) 18 8.10 Report 18 9 Measurement uncertainty for immunity to radiated RF ele

26、ctromagnetic fields 18 Annex A (informative) Background for establishing test methods, performance criteria and test levels . 19 A.1 General . 19 A.2 Radiated RF electromagnetic fields, history of the test method . 19 A.3 Performance criteria . 21 A.4 Test field strengths Bystander compatibility . 2

27、1 A.5 Field strengths User compatibility 21 Annex B (informative) Rationale for particular clauses and subclauses 24 B.1 Rationale for Clause 6 Requirements for electromagnetic emissions . 24 IEC 60118-13:2016 IEC 2016 3 B.2 Rationale for 6.1 Radiated emissions 24 B.3 Rationale for Clause 6 Requirem

28、ents for RF emissions and Clause 7 Requirements for electromagnetic immunity 24 B.4 Rationale for 7.2 Compliance criteria 24 B.5 Rationale for 7.3 Radiated RF electromagnetic fields 24 B.6 Rationale for 7.4 Electrostatic discharge (ESD) . 24 B.7 Rationale for 7.5 Power frequency magnetic fields 25 B

29、ibliography 26 Figure 1 Examples of input-output response curves at 1 000 Hz and the determination of gain at an input level of 55 dB . 14 Figure 2 Example of a test arrangement for hearing aid immunity measurements using a GTEM cell 15 Figure 3 Positioning of BTE, during RF exposure . 16 Figure 4 P

30、ositioning of BTE with receiver, during RF exposure 16 Figure 5 Positioning of ITE with receiver, during RF exposure . 17 Figure A.1 Ratio of 1:2 between field strength and interference level in dB 20 Figure A.2 Example of test arrangement for hearing aid immunity measurements using dipole antenna .

31、 22 Table 1 Field strengths of RF test signals to be used to establish immunity for bystander compatible and user compatible hearing aids . 12 4 IEC 60118-13:2016 IEC 2016 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ ELECTROACOUSTICS HEARING AIDS Part 13: Electromagnetic compatibility (EMC) FOREWORD

32、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 questions concerning standardization in the electric

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42、 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 IEC 60118-13 has been prepared by IEC technical committee 29: Electroacoustics. This fourth edition cancels and r

43、eplaces the third edition published in 2011 and constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) introduction of a new set of general EMC requirements for hearing aids. It has the status of a product EMC stan

44、dard in accordance with IEC Guide 107, Electromagnetic compatibility Guide to the drafting of electromagnetic compatibility publications. IEC 60118-13:2016 IEC 2016 5 The text of this standard is based on the following documents: FDIS Report on voting 29/889/FDIS 29/896/RVD Full information on the v

45、oting 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. A list of all parts in the IEC 60118 series, published under the general title Electroacoustics Hearing aids

46、 can be found on the IEC website. The committee has decided that the contents of this publication will remain unchanged until the stability date indicated on the IEC website under “http:/webstore.iec.ch“ in the data related to the specific publication. At this date, the publication will be reconfirm

47、ed, withdrawn, replaced by a revised edition, or amended. IMPORTANT The colour inside logo on the cover page of this publication indicates that it contains colours which are considered to be useful for the correct understanding of its contents. Users should therefore print this document using a colo

48、ur printer. 6 IEC 60118-13:2016 IEC 2016 INTRODUCTION This international standard specifies EMC requirements of hearing aids. Most hearing aids contain digital signal processors and some can contain wireless transceivers. As the generic IEC 60601-1-2 EMC standard does not apply to hearing aids (ref.

49、 IEC 60601-2-66:2015, 201.17), this revision of IEC 60118-13:2011 introduces additional specifications for EMC requirements for hearing aids. Experience in connection with the use of hearing aids in recent times has identified digital wireless devices such as wireless telephones and GSM mobile phones as potential sources of disturbance for hearing aids. Interference in hearing aids depends on the emit