NF C66-330-2*NF EN 60383-2:2015 Insulators for overhead lines with a nominal voltage above 1 000 V - Part 2 : insulator strings ans insulator sets for a.c. systems - Definitions, test methods and acceptance criteria
2015NF C66-330-2*NF EN 60383-2:2015 Insulators for overhead lines with a nominal voltage above 1 000 V - Part 2 : insulator strings ans insulator sets for a.c. systems - Definitions, test methods and acceptance criteria