DIN EN 50502:2016-03

This European Standard applies to electrical systems on board of vehicles of the type trolley bus fed with a nominal line voltage (Un) between 600 V d.c. and 750 V d.c. It defines the requirements and constructional hints, especially to avoid electrical danger to the public and to staff. Where special requirements are existing for trolley buses, hints are given for mechanical and functional safety as well as for protection against fire. This standard covers vehicles intended for public transport of persons and applies to: - trolley buses, - buses with current rail for guidance in the road surface, - guided buses with bipolar roof current collector. The responsible committee is Subcommittee DKE/UK 351.1 "Fahrzeuge" ("Rolling stock") of the DKE (German Commission for Electrical, Electronic and Information Technologies) at DIN and VDE.