IEC 62040-1:2017+AMD1:2021+AMD2:2022适用于低压配电系统中使用的移动式、固定式或内置式UPS，且拟安装在普通人可进入的区域或限制进入的区域（如适用），其提供固定频率的AC输出电压，端口电压不超过1000V AC或1500V DC。它适用于可插拔和永久连接的UPS，无论是由互连单元或独立单元组成的系统，但须按照制造商规定的方式安装、操作和维护UPS。 本文件规定了确保接触UPS的普通人员安全的要求，如有特别说明，还规定了技术人员的安全要求。其目的是减少使用和操作过程中以及（如有特别说明）维修和维护过程中的火灾、触电、热、能量和机械危害风险。本产品标准与电力电子转换器系统的团体安全出版物IEC 62477-1:2012的适用部分相协调，并包含与UPS相关的附加要求。 本版本包括与前一版本相比的以下重大技术变更:参考文件已从IEC 60950-1:2005（IT设备安全）变更为IEC 62477-1（电力电子转换器组安全标准）。2019年10月的更正内容已包含在本副本中。

IEC 62040-1:2017+AMD1:2021+AMD2:2022 applies to movable, stationary, fixed or built-in UPS for use in low-voltage distribution systems and that are intended to be installed in an area accessible by an ordinary person or in a restricted access area as applicable, that deliver fixed frequency AC output voltage with port voltages not exceeding 1 000 V AC or 1 500 V DC and that include an energy storage device. It applies to pluggable and to permanently connected UPS, whether consisting of a system of interconnected units or of independent units, subject to installing, operating and maintaining the UPS in the manner prescribed by the manufacturer. This document specifies requirements to ensure safety for the ordinary person who comes into contact with the UPS and, where specifically stated, for the skilled person. The objective is to reduce risks of fire, electric shock, thermal, energy and mechanical hazards during use and operation and, where specifically stated, during service and maintenance. This product standard is harmonized with the applicable parts of group safety publication IEC 62477-1:2012 for power electronic converter systems and contains additional requirements relevant to UPS. This edition includes the following significant technical change with respect to the previous edition: the reference document has been changed from IEC 60950-1:2005 (safety for IT equipment) to IEC 62477-1 (group safety standard for power electronic converters). The contents of the corrigendum of October 2019 have been included in this copy.