IEC 60445. Ed.4. Basic and safety principles for man-machine interface, marking and identification. Identification of equipment terminals and of terminations of certain designated conductors, including general rules for an alphanumeric system
IEC 60445 Ed.4 人机界面、标记和标识的基本原则和安全原则 设备终端和某些指定导体终端的标识 包括字母数字系统的一般规则