BS-EN-60118-6-1999-EDITION-2 IEC-60118-6-1999-EDITION-2.pdf
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1、BRITISH STANDARD BS EN 60118-6:1999 (Second Edition) IEC 60118-6: 1999 (Second Edition)Hearing aids Part 6: Characteristics of electrical input circuits for hearing aids The European Standard EN 60118-6:1999 has the status of a British Standard ICS 17.140.50 Licensed Copy: sheffieldun sheffieldun, n
2、a, Thu Nov 09 04:14:55 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 60118-6:1999 This British Standard, having been prepared under the direction of the Electrotechnical Sector Committee, was published under the authority of the Standards Committee and comes into effect on 15 November 1999 BSI 03
3、-2000 ISBN 0 580 35410 5 National foreword This British Standard is the English language version of EN 60118-6:1999. It is identical with IEC 60118-6:1999. It supersedes BS EN 60118-6:1999 which will be withdrawn on 2002-08-01. The UK participation in its preparation was entrusted by Technical Commi
4、ttee EPL/29, Electroacoustics, which has the responsibility to: aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and Europe
5、an developments and promulgate them in the UK. A list of organizations represented on this committee can be obtained on request to its secretary. From 1 January 1997, all IEC publications have the number 60000 added to the old number. For instance, IEC 27-1 has been renumbered as IEC 60027-1. For a
6、period of time during the change over from one numbering system to the other, publications may contain identifiers from both systems. Cross-references Attention is drawn to the fact that CEN and CENELEC Standards normally include an annex which lists normative references to international publication
7、s with their corresponding European publications. The British Standards which implement these international or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Fi
8、nd” facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from lega
9、l obligations. Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, the EN title page, pages 2 to 4 and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table
10、on the inside front cover. Amendments issued since publication Amd. No.DateComments Licensed Copy: sheffieldun sheffieldun, na, Thu Nov 09 04:14:55 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 60118-6:1999 BSI 03-2000i Contents Page National forewordInside front cover Foreword2 Text of EN 60118-
11、63 Licensed Copy: sheffieldun sheffieldun, na, Thu Nov 09 04:14:55 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ii blank Licensed Copy: sheffieldun sheffieldun, na, Thu Nov 09 04:14:55 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 60118-6 August 1999 I
12、CS 17.140.50Supersedes EN 60118-6:1998 English version Hearing aids Part 6: Characteristics of electrical input circuits for hearing aids (IEC 60118-6:1999) Appareils de correction auditive Partie 6: Caractristiques des circuits dentre lectriques des appareils de correction auditive (CEI 60118-6:199
13、9) Hrgerte Teil 6: Eigenschaften elektrischer Eingnge von Hrgerten (IEC 60118-6:1999) This European Standard was approved by CENELEC on 1999-08-01. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the statu
14、s 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).
15、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, Czech Republi
16、c, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elek
17、trotechnische Normung Central Secretariat: rue de Stassart 35, B-1050 Brussels 1999 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 60118-6:1999 E Licensed Copy: sheffieldun sheffieldun, na, Thu Nov 09 04:14:55 GMT+00:00 2006, Uncon
18、trolled Copy, (c) BSI EN 60118-6:1999 BSI 03-2000 2 Foreword The text of document 29/430/FDIS, future amendment to IEC 60118-6, prepared by IEC TC 29, Electroacoustics, was submitted to the IEC-CENELEC parallel vote. The text of this document, together with that of IEC 60118-6:1984 was approved CENE
19、LEC as EN 60118-6 on 1999-08-01. The following dates were fixed: Annexes designated “normative” are part of the body of the standard. In this standard, Annex ZA is normative. Annex ZA has been added by CENELEC. Endorsement notice The text of the International Standard IEC 60118-6:1999 was approved b
20、y CENELEC as a European Standard without any modification. Contents Page Foreword2 Introduction3 1Scope3 2Normative references3 3Electrical characteristics3 3.1Input impedance3 3.2Input sensitivity3 4Mechanical characteristics and electrical function of connector system for electrical input3 5Electr
21、ical safety3 Annex ZA (normative) Normative references to international publications with their corresponding European publications4 latest date by which the EN has to be implemented at national level by publication of an identical national standard or by endorsement(dop) 2000-05-01 latest date by w
22、hich the national standards conflicting with the EN have to be withdrawn(dow) 2002-08-01 Licensed Copy: sheffieldun sheffieldun, na, Thu Nov 09 04:14:55 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 60118-6:1999 BSI 03-20003 Introduction A personal hearing aid is a device which amplifies sound and i
23、s normally worn by a person whose hearing is impaired. The usual inputs to such an aid are acoustic through the microphone, or electro-magnetic through the induction pick-up coil. However, there is a need, for example for educational purposes, for an electrical connection between the hearing aid and
24、 the electrical output of a signal source, such as a radio FM system, tape recorder, infra-red system or external microphone. The required characteristics for such an input are given in this International Standard. 1 Scope This part of IEC 60118 specifies the electrical and safety characteristics of
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