BS EN 62231-1. 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
BS EN 62231-1. 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
Composite station post insulators for substations with a.c. voltages greater than 1000 V up to 245 kV. Definitions, test methods and acceptance criteria