Composite station post insulators for substations with AC voltages greater than 1 000 V up to 245 kV -- Part 1: Dimensional, mechanical and electrical characteristics (IEC 62231-1:2015) (english version)
Composite station post insulators for substations with a.c. voltages greater than 1 000 V up to 245 kV - Definitions, test methods and acceptance criteria— 71 стр.
