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An overhead line or overhead wire is an electrical cable that is used to transmit electrical energy to electric locomotives, electric multiple units, trolleybuses or trams. The generic term used by the International Union of Railways for the technology is overhead line . [ 1 ]
An aerial tramway consists of one or two fixed cables (called track cables), one loop of cable (called a haulage rope), and one or two passenger or cargo cabins.The fixed cables provide support for the cabins while the haulage rope, by means of a grip, is solidly connected to the truck (the wheel set that rolls on the track cables).
Overhead lines are used to provide power for most electric tram and light rail systems. Electric trams use various devices to collect power from overhead lines. The most common device is the pantograph, while some older systems use trolley poles or bow collectors. Ground-level power supply has become a more recent innovation.
Both lines between Cologne and Bonn were originally heavy load train lines electrified at 1,200 V. Line 18 once was metre gauge: Trams in Cottbus: 20.1 km 1,000 mm (3 ft 3 + 3 ⁄ 8 in) 600 V Trams in Darmstadt: 42 km 1,000 mm (3 ft 3 + 3 ⁄ 8 in) 600 V Dortmund Stadtbahn: 75 km 1,435 mm (4 ft 8 + 1 ⁄ 2 in) 750 V 600 V until 1999 Trams in ...
Overhead wires in depots; all trains are equipped with pantographs Kunming: Kunming Metro: Line 4 only Qingdao: Qingdao Metro: Shanghai: Shanghai Metro: Lines 16 and 17 only. Overhead wires in depot of Line 16, all trains on Line 16 have pantographs for depot use. Shenzhen: Shenzhen Metro: Lines 3 and 6 only. Overhead wires in depot of Line 6 ...
When used on a tram or trolley car (i.e. a railway vehicle), a single trolley pole usually collects current from the overhead wire, and the steel rails on the tracks act as the electrical return. To reduce electrolytic corrosion of underground pipes and metallic structures, most tram lines are operated with the wire positive with respect to the ...
The Lichterfelde tram in Berlin, 1882 Volks Electric Railway, built in 1883, is still in operation First type of Mödling and Hinterbrühl Tramcars, powered by bipolar overhead line, 1883 Fully restored 1920 Toronto streetcar A Double-decker tram in Blackpool A Box Hill to Doncaster tram in Melbourne, 1890s
Initially, residents were promised that overhead power lines would be buried as part of the project, but as cost overruns mounted, this plan was scrapped. [53] Neighborhood opponents of the tram have cited other reasons for opposing the tram's construction, including the fact that the North Corbett neighborhood is a historic district listed on ...