Polymeric insulators for indoor and outdoor use with a nominal voltage greater than 1000 V. General definitions, test methods and acceptance criteria— 38 стр.
Insulators for overhead lines - Composite suspension and tension insulators for a.c. systems with a nominal voltage greater than 1 000 V - Definitions, test methods and acceptance criteria— 57 стр.
Insulators for overhead lines. Composite suspension and tension insulators for a.c. systems with a nominal voltage greater than 1000 V. Definitions, test methods and acceptance criteria— 34 стр.
Railway applications. Insulation coordination. Basic requirements. Clearances and creepage distances for all electrical and electronic equipment— 52 стр.
BS EN 50488. Railway applications. Fixed Installations. Electrical protective measures for working on or near an overhead contact line system and/or its associated return circuit— 43 стр.
Railway applications - Fixed installations - Electrical safety, earthing and the return circuit -- Part 1: Protective provisions against electric shock (english version)
