SANS 60383-2-1993 公称电压高于1000V的架空线路绝缘子．第2部分：交流电路系统绝缘子串和绝缘子装置．试验方法和验收准则
Insulators for overhead lines with a nominal voltage above 1 000 V Part 2: Insulator strings and insulator sets for a.c. systems - Definitions, test methods and acceptance criteria
Applies to insulator strings and insulator sets comprising string insulator units of ceramic material or glass for use on a.c. overhead power lines with a nominal voltage exceeding 1 000 V and a frequency not exceeding 100 Hz.