NF EN 62489-2

NF EN 62489-2

August 2011
Standard Cancelled

Electroacoustics - Audio-frequency induction loop systems for assisted hearing - Part 2 : methods of calculating and measuring the low-frequency magnetic field emissions from the loop for assessing conformity with guidelines on limits for human exposure

Le présent document s'applique aux systèmes de boucles d'induction audiofréquences pour améliorer l'audition.

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Main informations

Collections

National standards and national normative documents

Publication date

August 2011

Number of pages

21 p.

Reference

NF EN 62489-2

ICS Codes

17.140.50   Electroacoustics

Classification index

S31-016-2

Print number

1 - septembre 2011

International kinship

IEC 62489-2:2011

European kinship

EN 62489-2:2011
Sumary
Electroacoustics - Audio-frequency induction loop systems for assisted hearing - Part 2 : methods of calculating and measuring the low-frequency magnetic field emissions from the loop for assessing conformity with guidelines on limits for human exposure

Le présent document s'applique aux systèmes de boucles d'induction audiofréquences pour améliorer l'audition.
Standard replaced by (1)
NF EN 62489-2
December 2014
Standard Current
Electroacoustics - Audio-frequency induction loop systems for assisted hearing - Part 2 : methods of calculating and measuring the low-frequency magnetic field emissions from the loop for assessing conformity with guidelines on limits for human exposure

Table of contents
  • AVANT-PROPOS
    2
  • 1 Domaine d'application
    4
  • 2 Références normatives
    4
  • 3 Valeurs assignées
    5
  • 4 Situation concernant les normes actuelles
    5
  • 5 Configurations des boucles
    5
  • 5.1 Principaux types de configuration
    5
  • 5.2 Considérations générales
    5
  • 5.3 Boucles de grande surface
    6
  • 5.4 Boucles de surface moyenne
    6
  • 5.5 Boucles de petite surface
    6
  • 5.6 Antennes solénoïdes
    6
  • 6 Calculs
    7
  • 6.1 Généralités
    7
  • 6.2 Antennes solénoïdes
    7
  • 7 Mesures
    7
  • 7.1 Généralités
    7
  • 7.2 Signal d'entrée
    8
  • 7.3 Instrument de mesure
    8
  • 8 Comparaison des résultats calculés ou mesurés avec les indications ou les limites
    8
  • 9 Respect des limites ou des instructions
    10
  • 10 Incertitude de mesure
    10
  • Annexe A (informative) Justifications pour cette norme de famille de produits relative aux émissions de champ magnétique, concernant les systèmes de boucle d'induction audiofréquences (AFILS) dans un contexte d'exposition humaine au rayonnement non ionisant
    11
  • Annexe B (informative) Exemple de calcul utilisant le facteur de couplage K
    16
  • Annexe ZA (normative) Références normatives à d'autres publications internationales avec les publications européennes correspondantes
    17
  • Bibliographie
    18
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