EN 62489-1:2010

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.VOXãQHAkustik - Audiofrequenz-Induktionsschleifenanlagen zur Unterstützung von Hörsystemen - Teil 1: Verfahren zur Messung und Angabe des Betriebsverhaltens der Systemkomponenten (IEC 62489-1:2010)Electroacoustique - Systèmes de boucles d'induction audiofréquences pour améliorer l'audition - Partie 1: Méthodes de mesure et de spécification des performances des composants de systèmes (CEI 62489-1:2010)Electroacoustics - Audio-frequency induction loop systems for assisted hearing - Part 1: Methods of measuring and specifying the performance of system components (IEC 62489-1:2010)17.140.50ElektroakustikaElectroacoustics11.180.15Aids for deaf and hearing impaired peopleICS:Ta slovenski standard je istoveten z:EN 62489-1:2010SIST EN 62489-1:2010en01-september-2010SIST EN 62489-1:2010SLOVENSKI
STANDARD
EUROPEAN STANDARD EN 62489-1 NORME EUROPÉENNE
EUROPÄISCHE NORM April 2010
CENELEC European Committee for Electrotechnical Standardization Comité Européen de Normalisation Electrotechnique Europäisches Komitee für Elektrotechnische Normung
Management Centre: Avenue Marnix 17, B - 1000 Brussels
© 2010 CENELEC -
All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 62489-1:2010 E
ICS 17.140.50
English version
Electroacoustics -
Audio-frequency induction loop systems for assisted hearing -
Part 1: Methods of measuring and specifying the performance of system components (IEC 62489-1:2010)
Electroacoustique -
Systèmes de boucles d'induction audiofréquences pour améliorer l'audition - Partie 1: Méthodes de mesure
et de spécification des performances
des composants de systèmes (CEI 62489-1:2010)
Akustik – Audiofrequenz-Induktionsschleifenanlagen
zur Unterstützung von Hörsystemen –
Teil 1: Verfahren zur Messung
und Angabe des Betriebsverhaltens
der Systemkomponenten (IEC 62489-1:2010)
This European Standard was approved by CENELEC on 2010-04-01. 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, Slovenia, Spain, Sweden, Switzerland and the United Kingdom.
at national level by publication of an identical
national standard or by endorsement
(dop)
2011-01-01 – latest date by which the national standards conflicting
with the EN have to be withdrawn
(dow)
2013-04-01 Annex ZA has been added by CENELEC. __________ Endorsement notice The text of the International Standard IEC 64289-1:2010 was approved by CENELEC as a European Standard without any modification. In the official version, for Bibliography, the following note has to be added for the standards indicated: [1]
IEC 60065 NOTE
Harmonized as EN 60065. __________ SIST EN 62489-1:2010

- 3 - EN 62489-1:2010
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 applies.
Publication Year Title EN/HD Year
IEC 60118-4 2006 Electroacoustics - Hearing aids -
Part 4: Induction loop systems for hearing aid purposes - Magnetic field strength EN 60118-4 2006
IEC 60268-1 1985 Sound system equipment -
Part 1: General HD 483.1 S2 1)
IEC 60268-2 - Sound system equipment -
Part 2: Explanation of general terms and calculation methods HD 483.2 S2 2)
-
IEC 60268-3 2000 Sound system equipment -
Part 3: Amplifiers EN 60268-3 + corr. January
2000 2002
IEC 60268-4 2004 Sound system equipment -
Part 4: Microphones EN 60268-4 2004
IEC 61938 - Audio, video and audiovisual systems - Interconnections and matching values - Preferred matching values of analogue signals EN 61938 -
ISO/IEC Guide 98-3 - Uncertainty of measurement -
Part 3: Guide to the expression of uncertainty in measurement (GUM:1995) - -
1) HD 483.1 S2 includes A1 to IEC 60268-1. 2) HD 483.2 S2 includes A1 to IEC 60268-2. SIST EN 62489-1:2010

IEC 62489-1Edition 1.0 2010-01INTERNATIONAL STANDARD NORME INTERNATIONALEElectroacoustics – Audio-frequency induction loop systems for assisted
hearing –
Part 1: Methods of measuring and specifying the performance of system components
Électroacoustique – Systèmes de boucles d’induction audiofréquences pour améliorer l'audition –
Partie 1: Méthodes de mesure et de spécification des performances des composants de systèmes
INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE SICS 17.140.50 PRICE CODECODE PRIXISBN 2-8318-1077-8
– 2 – 62489-1 © IEC:2010 CONTENTS FOREWORD.4 1 Scope.6 2 Normative references.6 3 Terms and definitions.7 4 Rated values.7 5 Amplifiers.7 5.1 General.7 5.2 Rated conditions and standard measuring conditions.7 5.2.1 Rated conditions.7 5.2.2 Standard measurement conditions.8 5.3 Pre-conditioning.8 5.4 Characteristics to be specified, methods of measurement and presentation of results.8 5.4.1 Rated source impedance.9 5.4.2 Rated source e.m.f.9 5.4.3 Rated load.9 5.4.4 Rated temperature-limited output current.9 5.4.5 Rated time for delivery of rated distortion-limited output current.10 5.4.6 Rated total harmonic distortion of the output current.10 5.4.7 Maximum (distortion-limited) output current.10 5.4.8 Compliance voltage.10 5.4.9 Noise.11 5.4.10 Magnetic field strength.12 5.4.11 Loop dimensions.13 5.4.12 Frequency response.13 5.4.13 Automatic gain control and compression.13 5.4.14 Phase error of quadrature networks for phased loop arrays.14 5.4.15 Installation.14 5.4.16 Physical characteristics.14 6 Microphones.14 6.1 General.14 6.2 Characteristics to be specified, methods of measurement and presentation of results.14 7 Other components.15 7.1 General.15 7.2 Characteristics to be specified, methods of measurement and presentation of results.15 8 Measurement uncertainty.15 Annex A (informative)
Automatic gain control and compression.16 Annex B (informative)
Loop conductors and some typical impedance values.17 Annex C (informative)
Microphones.20 Bibliography.21
Figure A.1 – Typical steady-state output/input characteristics.16
62489-1 © IEC:2010 – 3 – Table B.1 – Typical loop characteristics.18 Table B.2 – Cable characteristics.19
– 4 – 62489-1 © IEC:2010 INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ELECTROACOUSTICS –
AUDIO-FREQUENCY INDUCTION LOOP
SYSTEMS FOR ASSISTED HEARING –
Part 1: Methods of measuring and specifying
the performance of system components
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 all 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 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. 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) 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.
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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
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