标准摘要
[中文适用范围]： 目的是通过使用小时数来识别三相互连系统的导体，并以所施加电压的任意原点开始的相序为基础。相同的数字伴随给定的导体a [外文原描述]： Provides a means for identifying the conductors of 3-phase interconnected systems by the use of hour (clock-face) numbers, taking as a basis the phase sequence, starting from an arbitrary origin, of their applied voltages.
英文名称Identification by hour numbers of the phase conductors of 3-phase electric systems