标准摘要
[中文适用范围]: 本部分 IEC 60255 规定了测量继电器和保护设备的产品安全要求,适用于额定交流电压不超过 1000 V(额定频率不超过 65 Hz)或额定直流电压不超过 1500 V 的设备。超出这些限制时,IEC 60664-1 适用于确定间隙、爬电距离和耐压测试电压。 本文件详细说明了基本安全要求,以最大限度地减少火灾、电击或用户受伤和财产损失的风险。本文件仅规定产品安全要求,不涵盖设备的功能性能。 本标准不包括安装的安全要求。本文件涵盖了设备在机柜、机架和面板中安装和使用的所有方式,以及重新测试。本文件还适用于与测量继电器和保护设备一起使用并一起测试的辅助设备,如分流器、串联电阻器、变压器、辅助控制面板、显示设备等。 本标准旨在仅描述产品安全要求,因此不包括设备的功能性能。功能安全要求,包括 EMC 功能安全,不在本标准范围内。功能安全风险分析不在本产品安全标准的范围内。 本文件不指定单个设备、电路和组件的实现。本标准的目标是制定一个全面的标准,涵盖测量继电器和保护设备的所有产品安全方面以及相关的类型和例行测试。 本文件适用于设计在以下环境条件下至少安全的设备:室内使用;海拔不超过 2000 米(根据 IEC 60255-1);外部工作温度范围(根据 IEC 60255-1);额定环境温度范围(根据 IEC 60255-1);最大外部相对湿度 95%(非冷凝,根据 IEC 60255-1);电源波动(根据 IEC 60255-1);辅助激励电压的工作范围(根据 IEC 60255-1);适用的电源过电压类别;外部污染等级 1 和 2。 [外文原描述]: IEC 60255-27:2023 CMV contains both the official standard and its commented version. The commented version provides you with a quick and easy way to compare all the changes between IEC 60255-27:2023 edition 3.0 and the previous IEC 60255-27:2013 edition 2.0. Furthermore, comments from IEC TC 95 experts are provided to explain the reasons of the most relevant changes, or to clarify any part of the content. IEC 60255-27:2023 specifies the product safety requirements for measuring relays and protection equipment having a rated AC voltage up to 1 000 V, or a rated DC voltage up to 1 500 V. This document specifies essential safety requirements to minimize the risk of fire and hazards caused by electric shock or injury to the user and property. This document specifies only product safety requirements; functional performance of the equipment is not covered. This document covers all the ways in which the equipment can be mounted and used in cabinets, racks and panels. This document also applies to auxiliary devices such as shunts, series resistors, transformers, auxiliary control panels, display devices, etc., that are used in conjunction with measuring relays and protection equipment and are tested together.
英文名称Measuring relays and protection equipment - Part 27: Product safety requirements