机械安全.人身保护用安全相关传感器

[中文适用范围]： 本技术规范提供了用于保护人员的与安全相关的传感器（SRS）和安全相关传感器系统（SRSS）的开发和集成的要求，特别关注系统能力。该通用标准仅在以下情况下适用：需使用传感器保护人员；功能性安全电气控制系统标准将传感器作为子系统或子系统元素进行处理；产品专用传感器标准（例如 IEC 61496（所有部分）、IEC 60947-5-2）不包含所有必要条款，或未开发产品专用传感器标准。本文件中规定的检查系统能力的方法仅限于以下目的的保护人员：检测潜在危险物体；检测进入危险区域的人体、人体部位以及与人体部位相关的物体；或对这些物体与其他物体进行分类或区分。性能等级根据现有功能性安全标准（如 IEC 62061、IEC 61508（所有部分）和 ISO 13849（所有部分））定义。本文件不针对 IEC 61508-2 中所述的已验证使用（例如过程或元素）。 [外文原描述]： IEC TS 62998-1:2019 gives requirements for the development and integration of safety related sensors (SRS) and safety related sensor systems (SRSS) used for protection of persons with special attention to systematic capabilities. This generic standard only applies if – protection of persons is to be performed by using sensors, and – standards for functional safety of electrical control systems address sensor(s) as subsystem or subsystem element, and – product specific sensor standards (e.g. IEC 61496 (all parts), IEC 60947-5-2) do not contain all necessary provisions, or product specific sensor standards are not developed. The approach of examination of systematic capabilities by using different safety related sensor standards is described in Annex A. The requirements and methods within this document are limited to the purpose of protection of persons – by detection of potentially hazardous objects, – by detection of a body, parts of a body and objects associated to parts of a body entering a hazardous area, or – by classification respective discrimination of these against other objects. Special attention is given to the sensing function and dependability of the detection capability. Environmental influences and tests for indoor and outdoor use are defined which influence the sensing function and dependability of the detection capability. IEC TS 62998-1:2019 can be relevant to applications other than those for the protection of persons in industries, for example, for the protection of persons in public like agriculture or metro stations. IEC TS 62998-1:2019 does not consider and address proven in use (e.g. processes or elements) as done in IEC 61508-2.