标准摘要
[中文适用范围]： 该版本取代了 IEC 255-8 (1978) 和 IEC 255-17 (1982) 第一版。适用于从属规定时间电气测量继电器，通过测量受保护设备中流动的电流来保护设备免受电气热损坏。规定了热继电器的特殊要求。应与 IEC 255 系列中的更高级别文档一起阅读。 [外文原描述]： This edition supersedes the first edition of IEC 255-8 (1978) and IEC 255-17 (1982). Applies to dependent specified time electrical measuring relays which protect equipment from electrical thermal damage by the measurement of current flowing in protected equipment. States the particular requirements for thermal electrical relays. Is to be read in conjunction with higher level documents in the IEC 255 series.
英文名称Electrical relays - Part 8: Thermal electrical relays