The City Tunnel in Leipzig connects the south of the city with the main station in the north of the city centre. This removes the onus for circumnavigating the inner city making regional train traffic faster and more comfortable for passengers. Two overground and four underground stations have been newly built for local and long-distance trains. In the Bayerischer Bahnhof underground station, Selux was contracted to illuminate the pedestrian entrances.
Steel tubes with a diameter of 400 mm, most of them brightly painted but some in grey, have been attached here from wall-to-wall across the entire breadth of the station. The grey tubes are semi-opened on one side at the bottom to enable installation of the Selux hollow light conductor system. Overall both entrances have been equipped with 25 illuminated tubes.
Each system consists of two individual tubes with a diameter of 250 mm and a length of 3.50 m while at the top of the tube on the inside is a reflecting surface that ensures the light is dispersed uniformly. The start of the tube is sealed with a glass pane, while a plate with a mirror seals off its end, from where a HIT 400 Watt luminant generates the light. A parabolic reflector casts the light into the tube from where it is beamed downwards. The luminaire is powered by an electric ballast with hot re-ignition.