What is overhead line?

Overhead Line

An overhead line, or overhead wire, is used to transmit electrical energy to trams, trolleybuses or trains at a distance from the energy supply point. It is known variously as

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Some articles on overhead line:

History Of Trams - Electric Trams
... route was just a testing plant Siemens named it an "elevated line taken down from its pillars and girders" ... This 2 km (2,000 m) line, re-gauged to 2 ft 9 in (840 mm) in 1884, remains in service to this day, and is the oldest operating electric tramway in the world ... same year, the first permanent tram with transmission of electricity by a bipolar overhead line was opened in Austria ...
Suez Canal Overhead Line Crossing
... The Suez Canal overhead line crossing is an important electrical power line built across the Suez Canal in 1998, located in the city of Suez, Suez Governorate, Egypt ... Because the required clearance over the Suez Canal is 152 metres, the overhead line has two 221 metre high pylons (one on either side of the crossing) in spite of its small span width of 600 metres ...
Overhead Line Crossing
... An overhead line crossing is the crossing of an obstacle—such as a traffic route, a river, a valley or a strait—by an overhead power line ... conditions and regulations at the time the power line is constructed ... Overhead line crossings can sometimes require extensive construction and can also have operational issues ...
Overhead Line - History
... In 1881 the first tram with overhead lines was presented by Werner von Siemens on the International Electric Exposition in Paris 1881 but the installation was removed after that event ... the first permanent tram service with overhead lines was started on Mödling and Hinterbrühl Tram in Austria ... These trams had bipolar overhead lines, consisting of two U-pipes, in which the pantographs hung and ran like shuttles ...
HVDC Vancouver Island
... HVDC Vancouver Island consists of three overhead line sections with a total length of 42 kilometres and two submarine cable sections with a length of 33 kilometres ... After its departure of Arnott Substation the overhead power line on the mainland split at 49°3′38″N 123°4′30″W / 49.06056°N 123.075°W / 49.06056 -123.075 ... first submarine cable sections ends and a short overhead line section running southwestly across Galiano Island starts ...

Famous quotes containing the words line and/or overhead:

    The English never draw a line without blurring it.
    Winston Churchill (1874–1965)

    During a walk or in a book or in the middle of an embrace, suddenly I awake to a stark amazement at everything. The bare fact of existence paralyzes me... To be alive is so incredible that all I can do is to lie still and merely breathe—like an infant on its back in a cot. It is impossible to be interested in anything in particular while overhead the sun shines or underneath my feet grows a single blade of grass.
    W.N.P. Barbellion (1889–1919)