Skip to main content
Tagasi

EVS-EN 60118-4:2015

Electroacoustics - Hearing aids - Part 4: Induction-loop systems for hearing aid purposes - System performance requirements

Üldinfo

Kehtiv alates 04.03.2015
Alusdokumendid
IEC 60118-4:2014; EN 60118-4:2015
Tegevusala (ICS grupid)
17.140.50 Elektroakustika
Direktiivid või määrused
puuduvad

Standardi ajalugu

Staatus
Kuupäev
Tüüp
Nimetus
15.02.2018
Muudatus
04.03.2015
Põhitekst
06.02.2007
Põhitekst
IEC 60118-4:2014 is applicable 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). Throughout this standard, it is assumed that the hearing aids used with it conform to all relevant parts of IEC 60118. This standard specifies requirements for the field strength in audio-frequency induction loops for hearing aid purposes, which will give adequate signal-to-noise ratio without overloading the hearing aid. The standard also specifies the minimum frequency response requirements for acceptable intelligibility. Methods for measuring the magnetic field strength are specified, and information is given on appropriate measuring equipment (see Annex B), information that should be provided to the operator and users of the system (see Annex C), and other important considerations. This standard does not specify requirements for loop driver amplifiers or associated microphone or audio signal sources, which are dealt with in IEC 62489-1, or for the field strength produced by equipment, such as telephone handsets, within the scope of ITU-T P.370. This third edition cancels and replaces the second edition published in 2006. This edition constitutes a technical revision which includes the following significant technical changes with respect to the previous edition: Addition of Annexes G, H and I where more information is provided about practical considerations and methods of measurement.

Nõutud väljad on tähistatud *

*
*
*
PDF
31,72 € koos KM-ga
Paber
31,72 € koos KM-ga
Sirvi standardit alates 2,44 € koos KM-ga
Standardi monitooring

Teised on ostnud veel

Muudatus

EVS-EN IEC 60118-4:2015/A1:2018

Electroacoustics - Hearing aids - Part 4: Induction-loop systems for hearing aid purposes - System performance requirements
Uusim versioon Kehtiv alates 15.02.2018
Põhitekst

EVS-EN 50388:2012

Raudteealased rakendused. Energiavarustus ja veerevkoosseis. Energiavarustuse (alajaama) ja veerevkoosseisu vahelise koostalitusvõime saavutamise kooskõlastatud tehnilised tingimused
Kehtetu alates 16.08.2022
Põhitekst

EVS-EN 50500:2008

Measurement procedures of magnetic field levels generated by electronic and electrical apparatus in the railway environment with respect to human exposure
Uusim versioon Kehtiv alates 05.09.2008
Muudatus

EVS-EN 62489-1:2010/A2:2018

Electroacoustics - Audio-frequency induction loop systems for assisted hearing - Part 1: Methods of measuring and specifying the performance of system components
Uusim versioon Kehtiv alates 01.03.2018