IEC 62489-2:2014适用于辅助听力的音频感应回路系统。只要适用，也可适用于用于其他目的的此类系统。本标准旨在通过计算和现场测试，评估人体暴露在系统产生的低频磁场中的情况。本标准不涉及IEC 60065适用的其他安全方面，也不涉及EMC。第二版取消并取代2011年出版的第一版。本版本是一次技术修订，包括重大技术变更，以反映ICNIRP指南（限制暴露于时变电场、磁场和电磁场的指南）的几次更新，该指南经常引用。最显著的变化是，指南中的基本指标已从组织电流密度更改为感应电场。 关键词:助听器，可接近性，存活率，耳聋

IEC 62489-2:2014 applies to audio-frequency induction-loop systems for assisted hearing. It may also be applied to such systems used for other purposes, as far as it is applicable. The standard is intended for assessment of human exposure to low-frequency magnetic fields produced by the system, by calculation and by in-situ testing. This standard does not deal with other aspects of safety, for which IEC 60065 applies, or with EMC. This second edition cancels and replaces the first edition published in 2011. This edition constitutes a technical revision which includes significant technical changes to reflect several updates to the ICNIRP Guide (Guidelines for limiting exposure to time-varying electric, magnetic, and electromagnetic fields) to which it makes frequent reference. The most significant change is that the underlying metric in the Guide has been changed from tissue current density to induced electric field. Keywords: hearing aid, accessibility, surdity, deafness