the lines depart: one over Skollenborg railway substation and Noragutu Substation to Neslandsvatn Substation and the other to Asker substation, which has an interesting track. It runs from Sundhaugen Switching Station northward and shares north of Foss at the towers of a three phase AC lines. It runs then eastwards and passes three substations: Mjondalen at Langum at Lierbyen at South of Ulvenvn substation at , it runs again on own towers overhead until termination tower at . The rest of line is underground. Power stations Name Town Power Year of inauguration Coordinates Substations fed from 55 kV grid Switching stations Substations with converters In Norway nearly all railway substations uses motor-generators which converts three phase AC from public grid into single phase AC. Most of these device are mounted on rail-cars for quick replacement. Some substations are in blind-ending tunnels. The list may be incomplete and coordinates may be incorrect. Other systems The Oslo Tramway and the Oslo Metro both use 750 V DC, the tramway via an overhead wire and the metro via third rail. The tramway previously used 600 V DC, while its Ekeberg Line used 1,200 V DC. Future Further plans have been launched, in particular the section of the Nordland Line from Trondheim to Steinkjer, which is part of the Trøndelag Commuter Rail, and the Meråker Line, which connects to the electrified Middle Line in Sweden. References Bibliography See also Timeline of railway electrification in Norway Electrification Norway