TS Class 7
Encyclopedia
TS Class 6 was a series of 28 tram
Tram
A tram is a passenger rail vehicle which runs on tracks along public urban streets and also sometimes on separate rights of way. It may also run between cities and/or towns , and/or partially grade separated even in the cities...

s and 15 trailers built by Strømmens Værksted
Strømmens Værksted
Strømmens Værksted A/S was an industrial company based in Skedsmo, Norway, specializing in the production of rolling stock. Founded in 1873, it remains as a part of Bombardier Transportation...

 for Trondheim Sporvei
Trondheim Sporvei
Trondheim Sporvei was a municipally owned tram operator in Trondheim, Norway that existed between 1936 and 1974. The company operated the municipal parts of the Trondheim Tramway until it was merged with A/S Graakalbanen and Trondheim Bilruter to create Trondheim Trafikkselskap...

. They were delivered in two slightly different batches; ten in 1948–49 and six in 1955.

On 10 October 1956, almost all operative trams used by the company were lost to the flames. Subsequently, Trondheim Sporvei ordered the Class 6 from Strømmen. Five engines were salvaged from the fire, and were reused in trams 1 through 5. The remaining deliveries were numbered 10–32. The trams delivered with new motors, had four NEBB
Norsk Elektrisk & Brown Boveri
Norsk Elektrisk & Brown Boveri A/S also known as NEBB was a Norwegian manufacturing company, which built a large amount of the rolling stock that is used by Norges Statsbaner. The plant was located at Skøyen. In 1988 it merged into Asea Brown Boveri ....

 motors with a power output of 43 kW. The Class 6 remained in service until 1984, when the Class 8
TT Class 8
TT Class 8 are the only remaining trams used on the Trondheim Tramway. Built by Linke-Hofmann-Busch in 1984–85, they replaced the aging Class 7 trams used by Trondheim Trafikkselskap...

 was delivered. Until then, the Class 7 served as the only tram on the Trondheim Tramway
Trondheim Tramway
Trondheim Tramway located in Trondheim, Norway consists presently of one 8.8 km tramway line, Gråkallbanen, from St. Olav's Gate in the city centre through Byåsen to Lian Station in Bymarka...

. Four trams and one trailer have been preserved by the Trondheim Tramway Museum
Trondheim Tramway Museum
Trondheim Tramway Museum is a tram museum located in Trondheim, Norway. The museum offers in addition to a display of the tramway history of Trondheim also heritage trips with old trams on the sole remains of the tramway in Trondheim, Gråkallbanen...

.
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