Insulators for overhead lines - Composite line post insulators for A.C. systems with a nominal voltage greater than 1 000 V - Definitions, test methods and acceptance criteria— 54 стр.
Railway applications. Fixed installations. Electric traction. Specific requirements for composite insulators used for overhead contact line systems— 34 стр.
Railway applications. Fixed installations. Electric traction. Specific requirements for composite insulators used for overhead contact line systems— 32 стр.
Railway applications - Fixed installations - Electric traction - Specific requirements for composite insulators used for overhead contact line systems ( IEC 62621:2011) (english version)
