农业和林业用拖拉机和机械.控制系统的安全相关部件.第2部分:概念阶段

[中文适用范围]： 本文件规定了农业和林业用拖拉机以及农业用自走式驾驶式机器和悬挂式、半悬挂式和牵引式机器控制系统安全相关部件（SRP/CS）开发的概念阶段。 也可应用于移动市政设备（如扫街机）。 本文件不适用于： ——农业用飞机和气垫车辆； ——草坪和花园设备。 本文件规定了 SRP/CS 执行其安全相关功能所需的特征和类别。 它不识别特定应用程序的性能级别。 注 1：机器特定的 C 类标准可以规定其范围内机器安全相关功能的性能等级 (AgPL)。 否则，AgPL 规范由制造商负责。 本文件适用于电气/电子/可编程电子系统（E/E/PES）的安全相关部分，因为这些部分与机电一体化系统相关。 它涵盖了 E/E/PES 安全相关系统的故障行为（包括这些系统的相互作用）可能造成的危险。 它不涉及与电击、火灾、烟雾、热、辐射、毒性、可燃性、反应性、腐蚀、能量释放和类似危险相关的危险，除非直接由 E/E/PES 安全相关的故障行为引起系统。 它还涵盖了 E/E/PES 安全相关系统的故障行为，这些系统涉及针对非 E/E/PES 危害的保护措施、保障措施或安全相关功能。 本文件范围内包含的示例： ——SRP/CS 限制电动混合动力汽车中的电流，以防止绝缘故障/电击危险； ——对SRP/CS的电磁干扰； ——SRP/CS 旨在防火。 不包括在本文件范围内的示例： ——由于摩擦导致的绝缘故障，导致电击危险； ——影响附近机器控制系统的标称电磁辐射； ——腐蚀导致电缆过热。 本文件不适用于非 E/E/PES 系统（例如液压、机械或气动）。 注 2：与机械安全相关的设计原则另见 ISO 12100。 本文件不适用于其发布之日之前制造的控制系统的安全相关部件。  [外文原描述]： This document specifies the concept phase of the development of safety-related parts of control systems (SRP/CS) on tractors used in agriculture and forestry and on self-propelled ride-on machines and mounted, semi-mounted and trailed machines used in agriculture. It can also be applied to mobile municipal equipment (such as street-sweeping machines). This document is not applicable to: — aircraft and air-cushion vehicles used in agriculture; — lawn and garden equipment. This document specifies the characteristics and categories required of SRP/CS for carrying out their safety-related functions. It does not identify performance levels for specific applications. NOTE 1 Machine specific type-C standards can specify performance levels (AgPL) for safety-related functions in machines within their scope. Otherwise, the specification of AgPL is the responsibility of the manufacturer. This document is applicable to the safety-related parts of electrical/electronic/programmable electronic systems (E/E/PES), as these relate to mechatronic systems. It covers the possible hazards caused by malfunctioning behaviour of E/E/PES safety-related systems, including interaction of these systems. It does not address hazards related to electric shock, fire, smoke, heat, radiation, toxicity, flammability, reactivity, corrosion, release of energy, and similar hazards., unless directly caused by malfunctioning behaviour of E/E/PES safety-related systems. It also covers malfunctioning behaviour of E/E/PES safety-related systems involved in protection measures, safeguards, or safety-related functions in response to non-E/E/PES hazards. Examples included within the scope of this document: — SRP/CS's limiting current flow in electric hybrids to prevent insulation failure/shock hazards; — electromagnetic interference with the SRP/CS; — SRP/CS's designed to prevent fire. Examples not included within the scope of this document: — insulation failure due to friction that leads to electric shock hazards; — nominal electromagnetic radiation impacting nearby machine control systems; — corrosion causing electric cables to overheat. This document is not applicable to non-E/E/PES systems (such as hydraulic, mechanic or pneumatic). NOTE 2 See also ISO 12100 for design principles related to the safety of machinery. This document is not applicable to safety-related parts of control systems manufactured before the date of its publication.