ISO 22201-1:2017适用于住宅楼、办公室、医院、酒店、工业厂房等使用的客梯和货物/客梯产品系列。本文件涵盖了使用可编程电子系统执行电梯电气安全功能（PESSRAL）时需要解决的方面。本文件适用于PESSRAL参考本文件的电梯规范、标准或法律中确定的电梯安全功能。根据附录B中引用的电梯规范、标准和法律，本文件中规定的SIL对PESSRAL有效。 注:在本文件中，始终使用英国术语“电梯”，而不是美国术语“电梯”。 ISO 22201-1:2017也适用于新的或与本文件所述内容不同的PESSRAL。 本文件关于电气安全/保护装置的要求是，无需考虑符合本文件和其他相关标准所有要求的电气安全/保护装置发生故障的可能性。 特别是，这份文件 a） 使用安全完整性等级（SIL）为PESSRAL实施的安全功能指定目标故障度量； b） 规定了实现功能安全完整性的要求，但未规定谁负责实施和维护这些要求（例如，设计师、供应商、业主/运营公司、承包商）； 根据安全规划和国家法规，该责任分配给不同的各方； c） 适用于满足公认升降机标准（如EN 81、ASME A17）最低要求的升降机应用中使用的PE系统。1-2007/CSA B44-07，或《日本建筑标准电梯和自动扶梯执法令》等电梯法； d） 定义了本文件与IEC 61508之间的关系，以及本文件与EMC电梯抗扰度标准ISO 22200之间的关系； e） 概述电梯安全功能及其安全状态条件之间的关系； f） 适用于特定于软件和相关硬件设计的阶段和活动，但不适用于后期发生的阶段和活动- 设计，例如采购和制造； g） 要求PESSRAL的制造商提供说明，说明为执行电梯组装、连接、调整和维护的组织维护PESSRAL（说明手册）完整性所需的内容； h） 提供与软件和硬件安全验证相关的要求； i） 确定特定电梯安全功能的安全完整性等级； j） 规定达到规定安全完整性水平所需的技术/措施； k） 为PESSRALs的应用提供风险降低决策表； l） 定义了根据本文件PESSRAL可达到的最高性能水平（SIL 3），并定义了最低性能水平（SIL 1）。 ISO 22201-1:2017不包括: -PE系统设备本身产生的危险，如触电等。； -故障安全的概念，当故障模式定义明确且复杂程度相对较低时，这一概念很有价值；故障安全的概念被认为是不合适的，因为PESSRAL的所有复杂性都在本文件的范围内； -在电梯安全功能中完整应用PESSRAL所需的其他相关要求，如包含PESSRAL的开关、致动器或传感器的机械结构、安装和标签。这些要求必须按照参考本文件的国家升降机标准执行。 -涉及恶意或未经授权行为相关安全威胁的可预见滥用。在需要考虑安全威胁分析的情况下，可以使用本标准，前提是重新评估了指定的SIL。

ISO 22201-1:2017 is applicable to the product family of passenger and goods/passenger lifts used in residential buildings, offices, hospitals, hotels, industrial plants, etc. This document covers those aspects that it is necessary to address when programmable electronic systems are used to carry out electric safety functions for lifts (PESSRAL). This document is applicable for lift safety functions that are identified in lift codes, standards or laws that reference this document for PESSRAL. The SILs specified in this document are understood to be valid for PESSRAL in the context of the referenced lift codes, standards and laws in Annex B. NOTE Within this document, the UK term "lift" is used throughout instead of the US term "elevator". ISO 22201-1:2017 is also applicable for PESSRAL that are new or deviate from those described in this document. The requirements of this document regarding electrical safety/protective devices are such that it is not necessary to take into consideration the possibility of a failure of an electric safety/protective device complying with all the requirements of this document and other relevant standards. In particular, this document a) uses safety integrity levels (SIL) for specifying the target failure measure for the safety functions implemented by the PESSRAL; b) specifies the requirements for achieving safety integrity for a function but does not specify who is responsible for implementing and maintaining the requirements (for example, designers, suppliers, owner/operating company, contractor); this responsibility is assigned to different parties according to safety planning and national regulations; c) applies to PE systems used in lift applications that meet the minimum requirements of a recognized lift standard such as EN 81, ASME A17.1-2007/CSA B44-07, or lift laws such as the Japan Building Standard Law Enforcement Order For Elevator and Escalator; d) defines the relationship between this document and IEC 61508 and defines the relationship between this document and the EMC standard for lifts on immunity, ISO 22200; e) outlines the relationship between lift safety functions and their safe-state conditions; f) applies to phases and activities that are specific to design of software and related hardware but not to those phases and activities that occur post-design, for example sourcing and manufacturing; g) requires the manufacturer of the PESSRAL to provide instructions that specify what is necessary to maintain the integrity of the PESSRAL (instruction manual) for the organization carrying out the assembly, connections, adjustment and maintenance of the lift; h) provides requirements relating to the software and hardware safety validation; i) establishes the safety integrity levels for specific lift safety functions; j) specifies techniques/measures required for achieving the specified safety integrity levels; k) provides risk-reduction decision tables for the application of PESSRALs; l) defines a maximum level of performance (SIL 3) that can be achieved for a PESSRAL according to this document and defines a minimum level of performance (SIL 1). ISO 22201-1:2017 does not cover: - hazards arising from the PE systems equipment itself, such as electric shock, etc.; - the concept of fail-safe, which can be of value when the failure modes are well defined and the level of complexity is relatively low; the concept of fail-safe is considered inappropriate because of the full range of complexity of the PESSRAL that are within the scope of this document; - other relevant requirements necessary for the complete application of a PESSRAL in a lift safety function, such as the mechanical construction, mounting and labelling of switches, actuators, or sensors that contain the PESSRAL. It is necessary that these requirements be carried out in accordance with the national lift standard that references this document. - foreseeable misuse involving security threats related to malevolent or unauthorized action. In cases where a security threat analysis needs to be considered, this standard may be used, provided the specified SIL has been reassessed.