IEC 61496-2:20 20规定了电敏感防护设备（ESPE）的设计、构造和测试要求，该设备专门设计用于检测人员，作为安全相关系统的一部分，采用主动光电防护设备（AOPD）进行传感功能。特别注意确保实现适当的安全相关性能的特征。ESPE可以包括可选的安全相关功能，其要求在IEC 61496-1:20 20和本文件的附录A中给出。 本文件没有规定检测区的尺寸或配置及其与任何特定应用的危险部件的关系，也没有规定任何机器的危险状态。它仅限于ESPE的功能及其与机器的接口方式。本文档不包括采用波长在400nm至1500nm范围之外的辐射的AOPD。 本文件可以与保护人员以外的应用相关，例如，保护机器或产品免受机械损坏。在这些应用中，例如，当要由感测功能识别的材料具有与人的特性不同的特性时，可能需要额外的要求。 本文件不涉及电磁兼容性（EMC）发射要求。 IEC 61496-2:20 20取消并取代2013年发布的第三版。本版构成技术修订版。 与上一版相比，此版本包括以下重大技术变更: a)第2部分中所有ESPE共有的要求和测试程序已移至第1部分。依赖于传感技术的测试程序保留在第2部分中。

IEC 61496-2:2020 specifies requirements for the design, construction and testing of electro-sensitive protective equipment (ESPE) designed specifically to detect persons as part of a safety-related system, employing active opto-electronic protective devices (AOPDs) for the sensing function. Special attention is directed to features which ensure that an appropriate safety-related performance is achieved. An ESPE can include optional safety-related functions, the requirements for which are given in Annex A of IEC 61496-1:2020 and of this document.
This document does not specify the dimensions or configurations of the detection zone and its disposition in relation to hazardous parts for any particular application, nor what constitutes a hazardous state of any machine. It is restricted to the functioning of the ESPE and how it interfaces with the machine.
Excluded from this document are AOPDs employing radiation at wavelengths outside the range 400 nm to 1 500 nm.
This document can be relevant to applications other than those for the protection of persons, for example, the protection of machinery or products from mechanical damage. In those applications, additional requirements can be necessary, for example, when the materials that are to be recognized by the sensing function have different properties from those of persons.
This document does not deal with electromagnetic compatibility (EMC) emission requirements.
IEC 61496-2:2020 cancels and replaces the third edition published in 2013. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) Requirements and test procedures in Part 2 that were found to be common to all ESPEs have been moved to Part 1. Test procedures that are dependent on the sensing technology remain in Part 2.