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1、a Date: 31 January 2007 Origin: International Latest date for receipt of comments: 30 April 2007 Project no.: 2007/00281 Responsible committee: EPL/29 Electroacoustics Interested committees: Title: Draft BS EN 60118-13 ED.3 Electroacoustics - Hearing aids - Part 13: Electromagnetic compatability (EM
2、C) Supersession information: If this document is published as a standard, the UK implementation of it will supersede BSEN60118-13 : 2005 and partially supersede NONE . If you are aware of a current national standard which may be affected, please notify the secretary (contact details below). WARNING:
3、 THIS IS A DRAFT AND MUST NOT BE REGARDED OR USED AS A BRITISH STANDARD. THIS DRAFT IS NOT CURRENT BEYOND 30 April 2007. This draft is issued to allow comments from interested parties; all comments will be given consideration prior to publication. No acknowledgement will normally be sent. See overle
4、af for information on commenting. No copying is allowed, in any form, without prior written permission from BSI except as permitted under the Copyright, Designs and Patent Act 1988 or for circulation within a nominating organization for briefing purposes. Electronic circulation is limited to dissemi
5、nation by e-mail within such an organization by committee members. Further copies of this draft may be purchased from BSI Customer Services, Tel: +44(0) 20 8996 9001 or email ordersbsi-. British, International and foreign standards are also available from BSI Customer Services. British Standards on
6、CD or Online are available from British Standards Publishing Sales Limited. Tel: 01344 404409 or email bsonlinetechindex.co.uk. Information on the co-operating organizations represented on the committees referenced above may be obtained from the responsible committee secretary. Cross-references The
7、British Standards which implement International or European publications referred to in this draft may be found via the British Standards Online Service on the BSI web site http:/www.bsi-. Direct tel: 020 8996 7205 Responsible Committee Secretary: Mr A Ashrafi (BSI) E-mail: asghar.ashrafibsi- Draft
8、for Public Comment Head Office 389 Chiswick High Road London W4 4AL Telephone: +44(0)20 8996 9000 Fax: +44(0)20 8996 7001 Form 36 Version 6.1 DPC: 07/30161929 DC Licensed Copy: London South Bank University, London South Bank University, Thu Mar 01 06:58:13 GMT+00:00 2007, Uncontrolled Copy, (c) BSI
9、b Introduction This draft standard is based on international discussions in which the UK has taken an active part. Your comments on this draft are welcome and will assist in the preparation of the consequent standard. If no comments are received to the contrary, then the UK will approve this draft.
10、There is a high probability that this text could be adopted by CENELEC as a reference document for harmonization or as a European Standard. Recipients of this draft are requested to comment on the text bearing in mind this possibility. UK Vote Please indicate whether you consider the UK should submi
11、t a negative (with reasons) or positive vote on this draft. Submission The guidance given below is intended to ensure that all comments receive efficient and appropriate attention by the responsible BSI committee. Annotated drafts are not acceptable and will be rejected. All comments must be submitt
12、ed, preferably electronically, to the Responsible Committee Secretary at the address given on the front cover. Comments should be compatible with Version 6.0 or Version 97 of Microsoft Word for Windows, if possible; otherwise comments in ASCII text format are acceptable. Any comments not submitted e
13、lectronically should still adhere to these format requirements. All comments submitted should be presented as given in the example below. Further information on submitting comments and how to obtain a blank electronic version of a comment form are available from the BSI web site at:http:/www.bsi- Te
14、mplate for comments and secretariat observations Date: xx/xx/200x Document: ISO/DIS xxxxx 1 2 (3) 4 5 (6) (7) MB Clause No./ Subclause No./ Annex (e.g. 3.1) Paragraph/ Figure/Table/ Note (e.g. Table 1) Type of com- ment Comment (justification for change) by the MB Proposed change by the MB Secretari
15、at observations on each comment submitted 3.1 Definition 1 ed Definition is ambiguous and needs clarifying. Amend to read . so that the mains connector to which no connection . 6.4 Paragraph 2 te The use of the UV photometer as an alternative cannot be supported as serious problems have been encount
16、ered in its use in the UK. Delete reference to UV photometer. Microsoft and MS-DOS are registered trademarks, and Windows is a trademark of Microsoft Corporation. Licensed Copy: London South Bank University, London South Bank University, Thu Mar 01 06:58:13 GMT+00:00 2007, Uncontrolled Copy, (c) BSI
17、 FORM CD (IEC) 2002-08-08 29/625/CD COMMITTEE DRAFT (CD) IEC/TC or SC: 29 Project number IEC 60118-13 Ed.3 Title of TC/SC: Electroacoustics Date of circulation 2007-01-26 Closing date for comments 2007-04-27 Also of interest to the following committees Supersedes document 29/624/MCR Functions concer
18、ned: Safety EMC Environment Quality assurance Secretary: L.E. NIELSEN, DS THIS DOCUMENT IS STILL UNDER STUDY AND SUBJECT TO CHANGE. IT SHOULD NOT BE USED FOR REFERENCE PURPOSES. RECIPIENTS OF THIS DOCUMENT ARE INVITED TO SUBMIT, WITH THEIR COMMENTS, NOTIFICATION OF ANY RELEVANT PATENT RIGHTS OF WHIC
19、H THEY ARE AWARE AND TO PROVIDE SUPPORTING DOCUMENTATION. Title: First IEC/CD 60118-13 “Electroacoustics Hearing aids Part 13: Electromagnetic compatibility (EMC) (Revision of IEC 60118-13:2004) (Titre) : Introductory note At its meeting September 2006 in Barcelona, IEC/TC 29 supported the proposal
20、from WG 13 “Hearing aids“ to revise IEC 60118-13:2004 in order to take account of new mobile telephone systems, which use higher frequency ranges than covered by the present standard that only covers up to 2,0 GHz. In accordance with the maintenance rules, a Maintenance Cycle Report is now circulate
21、d together with the present document as a first CD 60118-13 for comments. Copyright 2007 International Electrotechnical Commission, IEC. All rights reserved. It is permitted to download this electronic file, to make a copy and to print out the content for the sole purpose of preparing National Commi
22、ttee positions. You may not copy or “mirror“ the file or printed version of the document, or any part of it, for any other purpose without permission in writing from IEC. Licensed Copy: London South Bank University, London South Bank University, Thu Mar 01 06:58:13 GMT+00:00 2007, Uncontrolled Copy,
23、 (c) BSI 1CD 60118-13 IEC:2007 29/625/CD 2 First IEC/CD 60118-13 ELECTROACOUSTICS HEARING AIDS Part 13: Electromagnetic compatibility (EMC) (Revision of IEC 60118-13:2004) FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising all n
24、ational electrotechnical committees (IEC National Committees). The object of IEC is to promote international co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and in addition to other activities, IEC publishes International Standards, Techn
25、ical Specifications, Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with may participate in this preparatory work
26、. International, governmental and non- governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely with the International Organization for Standardization (ISO) in accordance with conditions determined by agreement between the two organizations. 2)
27、 The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international consensus of opinion on the relevant subjects since each technical committee has representation from all interested IEC National Committees. 3) IEC Publications have the form of recommend
28、ations for international use and are accepted by IEC National Committees in that sense. While all reasonable efforts are made to 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 en
29、d user. 4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications transparently to the maximum extent possible in their national and regional publications. Any divergence between any IEC Publication and the corresponding national or regional publica
30、tion shall be clearly indicated in the latter. 5) IEC provides no marking procedure to indicate its approval and cannot be rendered 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)
31、 No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and members of its 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 cos
32、ts (including legal fees) and expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC Publications. 8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is indispensable for the correct applic
33、ation of this publication. 9) Attention is drawn to the possibility that 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 tec
34、hnical committee 29: Electroacoustics. It has the status of a product EMC standard in accordance with IEC Guide 107, Electromagnetic compatibility Guide to the drafting of electromagnetic compatibility publications. This third edition cancels and replaces the second edition published in 2004. This t
35、hird edition constitutes a technical revision. It introduces requirements for use of hearing aids with mobile phones at higher frequencies. The text of this standard is based on the following documents: FDIS Report on voting Full information on the voting for the approval of this International Stand
36、ard 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. Licensed Copy: London South Bank University, London South Bank University, Thu Mar 01 06:58:13 GMT+00:00 2007, Uncontrolled Copy, (c) BSI 1CD 60
37、118-13 IEC:2007 29/625/CD 3 IEC 60118 consists of the following parts, under the general title Hearing aids:1 Part 0: Measurement of electroacoustical characteristics Part 1: Hearing aids with induction pick-up coil input Part 2: Hearing aids with automatic gain control circuits Part 3: Hearing aid
38、equipment not entirely worn on the listener Part 4: Magnetic field strength in audio-frequency induction loops for hearing aid purposes Part 5: Nipples for insert earphones Part 6: Characteristics of electrical input circuits for hearing aids Part 7: Measurement of the performance characteristics of
39、 hearing aids for quality inspection for delivery purposes Part 8: Methods of measurement of performance characteristics of hearing aids under simulated in situ working conditions Part 9: Methods of measurement of characteristics of hearing aids with bone vibrator output Part 12: Dimensions of elect
40、rical connector systems Part 13: Electromagnetic compatibility (EMC) Part 14: Specification of a digital interface device The committee has decided that the contents of this publication will remain unchanged until the maintenance result date indicated on the IEC web site under “http:/webstore.iec.ch
41、“ in the data related to the specific publication. At this date, the publication will be reconfirmed; withdrawn; replaced by a revised edition, or amended. _ 1 IEC 60118-10:1986 (Ed.1), Hearing aids Guide to hearing aid standards, was withdrawn in 2002. Licensed Copy: London South Bank University, L
42、ondon South Bank University, Thu Mar 01 06:58:13 GMT+00:00 2007, Uncontrolled Copy, (c) BSI 1CD 60118-13 IEC:2007 29/625/CD 4 INTRODUCTION This revised version of this International Standard introduces specifications for EMC requirements for user compatible hearing aids. The standard only deals with
43、 hearing aid immunity, as experience has shown that hearing aids do not emit electromagnetic signals to an extent that can disturb other equipment. Hearing aids containing RF transmitting equipment is covered by this standard regarding immunity, however the RF transmitting equipment is not covered.
44、Experience in connection with the use of hearing aids in recent times has identified digital wireless devices, such as GSM mobile phones as potential sources of disturbance for hearing aids. Interference in hearing aids depends on the emitted power from the wireless telephone as well as the immunity
45、 of the hearing aid. The performance criteria in this standard will not totally ensure hearing aid users interference- and noise-free use of wireless telephones but will establish useable conditions in most situations. In practice a hearing aid user, when using a wireless phone, will seek, if possib
46、le, to find a position on the ear which gives a minimum or no interference in the hearing aid. Hearing aids are battery powered devices, and therefore disturbances related to A.C. or D.C. power inputs are not relevant and are therefore not considered in this standard. Hearing aids whose output is no
47、t acoustic, e.g. cochlear implants and bone conduction hearing aids, are not covered by this standard. In some cases, hearing aids are connected to other equipment by cable, but this standard does not cover common mode transients and common mode surges on such cable connections. Based on experience
48、in connection with the use of hearing aids, relevant sources of disturbance for hearing aids include low frequency radiated magnetic fields, which may interact with the telecoil input included in some hearing aids. As the telecoil input is an intended feature of some hearing aids, and the hearing ai
49、d therefore must have a certain sensitivity to low frequency magnetic fields, it is not relevant to specify immunity against disturbing low frequency magnetic fields. To avoid unintended interference from low frequency magnetic noise fields, the recommendations specified in IEC 60118-4 12), regarding specifications for induction loop systems, should be followed. With regard to high frequency radiated ele