Insulators for overhead lines with a nominal voltage above 1 kV. Ceramic or glass insulator units for a.c. systems. Characteristics of insulator units of the cap and pin type— 14 стр.
Insulators for overhead lines with a nominal voltage above 1000 V - Part 1: Ceramic or glass insulator units for a.c. systems - Definitions, test methods and acceptance criteria— 57 стр.