Thamshavnbanen

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Norwegian Electric Locomotive No. 3 Ohma Electra. The locomotive was used on Thamshavnbanen from 1908 until the 1950s. In 1972 it was moved to Trondheim and displayed near the Norwegian University of Science and Technology

Thamshavnbanen was Norway's first electric railway. It was running from 1908 to 1974. Today it is the world's oldest railway running on alternating current ^[1], using 25 Hz and 6600 V.

It was built to transport ore from the mines at Løkken Verk to the harbor at Thamshavn. It also transported passengers. It had initially six stations; Thamshavn, Orkanger, Bårdshaug, Fannrem, Solbusøy, and Svorkmo. The tracks were extended to Løkken Verk in 1910.

Thamshavbanen is Scandinavia's only railway with a rail gauge of 1 m (3 ft 3³⁄₈ in). It is the world's only railway with this combination of gauge and electrical equipment. The total length of the railway was 25.15 km (15.63 miles).

The transportation of passengers ended in 1963, but the transportation of ore continued until 1974. In 1983, parts of the railway were reopened as a heritage railway.