BS EN 50121-5:2017

Autotransformers, Railway electric traction equipment, Electronic equipment and components, Switching substations, Electric substations, Performance, Booster transformers, Electromagnetic radiation, Electromagnetic fields, Electrical equipment, Electromagnetic compatibility, Emission, Electrical protection equipment, Radio disturbances, Frequencies, Switchgear, Railway fixed equipment, Electric power systems, Railway equipment, Noise (spurious signals), Electric power system disturbances, Power transformers Railway applications