SANS 60305-1995 标称电压超过1000V的架空线路用绝缘子.交流系统用陶瓷或玻璃绝缘子装置.盖式和插脚式绝缘子装置的特征
Insulators for overhead lines with a nominal voltage above 1 000 V - Ceramic or glass insulator units for a.c. systems - Characteristics of insulator units of the cap and pin type
Applies to string insulator units of the cap and pin type with insulating parts of ceramic material or glass, intended for a.c. overhead lines with a nominal voltage greater than 1 000 V and a frequency not greater than 100 Hz. Also applies to insulators