CEI EN 60118-4 : 2016
Current
The latest, up-to-date edition.
ELECTROACOUSTICS - HEARING AIDS - PART 4: INDUCTION-LOOP SYSTEMS FOR HEARING AID PURPOSES - SYSTEM PERFORMANCE REQUIREMENTS
Hardcopy , PDF
English
01-04-2016
FOREWORD
INTRODUCTION
1 Scope
2 Normative references
3 Terms and definitions
4 General
5 Using components of a sound system in an induction-loop
system
6 Meters and test signals
7 Magnetic background noise level of the installation site
8 Characteristics to be specified, methods of measurement
and requirements
9 Small-volume systems
10 Setting up (commissioning) the system
Annex A (informative) - Systems for small useful magnetic
field volumes
Annex B (informative) - Measuring equipment
Annex C (informative) - Provision of information
Annex D (informative) - Measuring speech signals
Annex E (informative) - Basic theory and practice of
audio-frequency induction-loop systems
Annex F (informative) - Effects of metal in the building
structure on the magnetic field
Annex G (informative) - Calibration of field-strength
meters
Annex H (informative) - Effect of the aspect ratio of the
loop on the magnetic field strength
Annex I (informative) - Overspill of magnetic field from
an induction-loop system
Bibliography
Annex ZA (normative) - Normative references to international
publications with their corresponding European
publications
Pertains to audio-frequency induction-loop systems producing an alternating magnetic field at audio frequencies and intended to provide an input signal for hearing aids operating with an induction pick-up coil (telecoil).
| Committee |
CT 29/87
|
| DevelopmentNote |
Classificazione CEI 29-40 (08/2001) Partially supersedes CEI 29-11 (05/2004) 2ED 2007 Edition is valid until 15-01-2018. (05/2016)
|
| DocumentType |
Standard
|
| Pages |
78
|
| ProductNote |
New child AMD 1 2018 is now added
|
| PublisherName |
Comitato Elettrotecnico Italiano
|
| Status |
Current
|
| Supersedes |
| Standards | Relationship |
| IEC 60118-4:2014+AMD1:2017 CSV | Identical |
| EN 60118-4:2015 | Identical |
| HD 483.10 : 200S1 | SOUND SYSTEM EQUIPMENT - PART 10: PEAK PROGRAMME LEVEL METERS |
| IEC 62489-1:2010+AMD1:2014 CSV | Electroacoustics - Audio-frequency induction loop systems for assisted hearing - Part 1: Methods of measuring and specifying theperformance of system components |
| IEC 60268-3:2013 | Sound system equipment - Part 3: Amplifiers |
| IEC 60268-10:1991 | Sound system equipment - Part 10: Peak programme level meters |
| EN 61672-1:2013 | Electroacoustics - Sound level meters - Part 1: Specifications |
| EN 60268-3:2013 | Sound system equipment - Part 3: Amplifiers |
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