标准摘要
[中文适用范围]： IEC 60669的本部分适用于额定电压不超过440V、额定电流不超过125A的手动操作通用隔离开关，用于家用和类似固定电气装置，无论是室内还是室外。 [外文原描述]： This part of IEC 60669 applies to manually operated general purpose isolating switches with a rated voltage not exceeding 440 V and a rated current not exceeding 125 A, intended for household and similar fixed electrical installations, either indoors or outdoors.
英文名称Switches for household and similar fixed electrical installations - Part 2-4: Particular requirements - Isolating switches