This British Standard gives recommendations for and guidance on the design, planning, installation, testing, operation and maintenance of an audio frequency induction loop system (AFILS) intended for communicating speech, music and/or other signals. It is mainly concerned with AFILS for hearing enhancement, in which the signals are communicated to users of hearing aids equipped with magnetic pick-up coils. However, most of the standard also applies to AFILS used for other purposes, and some additional information on these purposes is given in Section 3.
This standard does not apply to induction-loop systems which use a carrier frequency, nor to other systems for hearing enhancement purposes which do not use magnetic induction.
BS 7594:2011 Referenced Document
BS 7671 Requirements for Electrical Installations. IET Wiring Regulations*, 2022-03-28 Update
BS EN 60065 Audio, video and similar electronic apparatus - Safety requirements
BS EN 62489-1 Electroacoustics. Audio-frequency induction loop systems for assisted hearing - Methods of measuring and specifying the performance of system components*, 2018-07-31 Update
IEC 62489-1 Electroacoustics - Audio-frequency induction loop systems for assisted hearing - Part 1: Methods of measuring and specifying the performance of system components CONSOLIDATED EDITION*, 2017-11-27 Update
BS 7594:2011 history
2011BS 7594:2011 Code of practice for audio-frequency induction-loop systems (AFILS)
1993BS 7594:1993 Code of practice for audio-frequency induction-loop systems (AFILS)