BS IEC 62505-3-1. Railway applications. Fixed installations. Particular requirements for a.c. switchgear. Part 3-1. Measurement, control and protection devices for specific use in a.c. tractions systems. Devices— 22 стр.
BS IEC 62505-3-2. Railway applications. Fixed installations. Particular requirements for a.c. switchgear. Part 3-2. Measurement, control and protection devices for specific use in a.c. traction systems. Current transformers— 14 стр.