IEC 61496-3:20 18 RLV包含官方IEC国际标准及其红线版本。Redline版本不是官方文档，它只有英文版本，为您提供了一种快速简单的方法来比较IEC官方标准与其以前版本之间的所有变化。 IEC 61496-3:20 18规定了电敏感防护设备（ESPE）的设计、构造和测试的附加要求，该设备专门设计用于检测作为安全相关系统一部分的人员或人员部分，采用响应漫反射的主动光电防护设备（AOPDDRs）实现传感功能。特别注意确保达到适当的安全相关性能的要求。ESPE可以包括可选的安全-相关功能，其要求在本文件附件A和IEC 61496-1:20 12附件A中给出。IEC 61496-3:20 18未规定检测区域的尺寸或配置及其与任何特定应用的危险部件相关的配置，也未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。AOPDDR是具有以下任一项的设备 -在二维(AOPDDR-2D)中指定的一个或多个检测区，或 -三维指定的一个或多个检测区(AOPDDR-3D) 其中近红外范围内的辐射由发射元件发射。当发射的辐射照射到物体(例如，人或人的一部分)上时，发射的辐射的一部分通过漫反射被反射到(一个或多个)接收元件。该反射用于确定对象的位置。仅执行单个一维点状距离测量的光电设备，例如光学接近开关，不在本文件的覆盖范围内。IEC 61496-3:20 18没有解决对检测到的物体进行复杂分类或区分所需的那些方面。IEC 61496-3:20 18没有解决室外应用的要求和测试。IEC 61496-3:20 18不包括采用波长峰值在820 nm至950 nm范围之外的辐射的AOPDDR，以及采用AOPDDR本身产生的辐射以外的辐射的AOPDDR。对于采用该范围之外的波长辐射的感测设备，本文件可用作指南。IEC 61496-3:20 18适用于最小可检测物体尺寸在30mm至200mm范围内的AOPDDRs。IEC 61496-3:20 18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，不同的要求可能是合适的，例如当必须由感测功能识别的材料具有与人及其衣服的特性不同的特性时。IEC 61496-3:20 18不涉及电磁兼容性（EMC）排放要求。IEC 61496-3:20 18取消并取代了2008年发布的第二版。本版构成技术修订版。IEC 61496-3:20 18相对于上一版本包括以下重大技术变更: a)范围从AOPDDR-2D扩展到AOPDDR-3D； b)范围从第3类ESPE扩展到第2类ESPE；c)AOPDDR-3D和2型ESPE的要求和测试程序的实施； d)将参考边界监测列为ESPE的可选功能； e)执行用于相对于人体部分定位AOPDDR-3D的指令； f)对具有无故障危险条件的单一故障组合的修订要求，例如见4.2.2.4最后一段。 IEC 61496-3:20 18将与IEC 61496-1:20 12结合使用。

IEC 61496-3:2018 RLV contains both the official IEC International Standard and its Redline version. The Redline version is not an official document, it is available in English only and provides you with a quick and easy way to compare all the changes between the official IEC Standard and its previous edition.

IEC 61496-3:2018 specifies additional requirements for the design, construction and testing of electro-sensitive protective equipment (ESPE) designed specifically to detect persons or parts of persons as part of a safety-related system, employing active opto-electronic protective devices responsive to diffuse reflection (AOPDDRs) for the sensing function. Special attention is directed to requirements which ensure that an appropriate safety-related performance is achieved. An ESPE can include optional safety-related functions, the requirements for which are given both in Annex A of this document and in Annex A of IEC 61496-1:2012. IEC 61496-3:2018 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. AOPDDRs are devices that have either
– one or more detection zone(s) specified in two dimensions (AOPDDR-2D), or
– one or more detection zone(s) specified in three dimensions (AOPDDR-3D)
wherein radiation in the near infrared range is emitted by an emitting element(s). When the emitted radiation impinges on an object (for example, a person or part of a person), a portion of the emitted radiation is reflected to a receiving element(s) by diffuse reflection. This reflection is used to determine the position of the object. Opto-electronic devices that perform only a single one-dimensional spot-like distance measurement, for example, optical proximity switches, are not covered by this document. IEC 61496-3:2018 does not address those aspects required for complex classification or differentiation of the object detected. IEC 61496-3:2018 does not address requirements and tests for outdoor application. Excluded from IEC 61496-3:2018 are AOPDDRs employing radiation with the peak of wavelength outside the range 820 nm to 950 nm, and those employing radiation other than that generated by the AOPDDR itself. For sensing devices that employ radiation of wavelengths outside this range, this document can be used as a guide. IEC 61496-3:2018 is relevant for AOPDDRs having a minimum detectable object size in the range from 30 mm to 200 mm. IEC 61496-3:2018 can be relevant to applications other than those for the protection of persons, for example, for the protection of machinery or products from mechanical damage. In those applications, different requirements can be appropiate, for example when the materials that have to be recognized by the sensing function have different properties from those of persons and their clothing. IEC 61496-3:2018 does not deal with electromagnetic compatibility (EMC) emission requirements. IEC 61496-3:2018 cancels and replaces the second edition published in 2008. This edition constitutes a technical revision. IEC 61496-3:2018 includes the following significant technical changes with respect to the previous edition:
a) extension of the scope from AOPDDR-2D to AOPDDR-3D;
b) extension of the scope from Type 3 ESPE to Type 2 ESPE;
c) implementation of requirements and test procedures for AOPDDR-3D and Type 2 ESPE;
d) listing of reference boundary monitoring as an optional function of the ESPE;
e) implementation of instructions for positioning of AOPDDR-3D in respect of parts of the human body;
f) revised requirement for combinations of single faults with conditions for no failure to danger, see for example 4.2.2.4, last paragraph.
IEC 61496-3:2018 is to be used in conjunction with IEC 61496-1:2012.