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Overhead line

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. It is known variously as overhead catenary, overhead contact line (OCL), overhead…

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Overview

Construction

Types of wires

Tensioning

Breaks

Overhead conductor rails

Crossings

Multiple overhead lines

Overhead catenary

Problems with overhead equipment

History

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Map overview Semantic statistics

Overhead line

Nodes183
Edges182
Triples136
Avg. degree1.99
Density0.010929
Components1

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Overhead line

Top relations

related to Further reading · 32
Overhead line → AC, Alternating Current, Archived, Catenaries, Catenary Maintenance, Contact Wires, Cooper, Dailydka, DC, Direct Current, Edition, EMAP National Publications, February, Garry, ISBN, ISSN, January, Keenor, Lionginas, Liudvinavičius
related to history · 22
Overhead line → Austria, Electricity, Electromote, Frank, From, From April, Hinterbrühl Tram, In October, International Exposition, June, Much, Mödling, Paris, Richmond, Richmond Union Passenger Railway, Siemens, Sprague, The, This, U-pipes
related to Multiple overhead lines · 21
Overhead line → AC, Berlin-Lichtenberg, Brazil, Cologne, Corcovado Rack Railway, France, Gornergrat Railway, Italy, Jungfrau Railway, Marienfelde, On, Petit, Rhune, Siemens, Some, Switzerland, The, These, This, Until
related to Overhead conductor rails · 10
Overhead line → An, Baltimore Belt Line, For, Given, In, Simplon Tunnel, The, There, To, When
related to Parallel overhead lines · 8
Overhead line → AC, An, For, Pantographs, Parallel, The, Trams, Trolleybuses
related to Height · 6
Overhead line → Channel Tunnel, China, Exceptions, India, The, Warning
related to overview · 6
Overhead line → Alternative, Current, Electric, It, Non-electric, Vehicles
related to Section break · 6
Overhead line → Booster Transformer, For, In, Sections, The, To
related to Problems with overhead equipment · 5
Overhead line → During, Ice, Lightning, Overhead, This
related to Electrification support structures · 4
Overhead line → OLE, The, These, Various

Important terminology Word statistics

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Important terminology

wire overhead wires used line lines two catenary contact rail pantograph tram one tension railway section systems system trolleybus track

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
a pantographinstance ofOverviewElectric trains that collect their current from overhead lines use a device0.80text
bow collector or trolley poleinstance ofOverviewElectric trains that collect their current from overhead lines use a device0.80text
Franceinstance ofA simple section break is insufficient to guard against this as the pantograph briefly connects both sections.In countries0.80text
South Africainstance ofA simple section break is insufficient to guard against this as the pantograph briefly connects both sections.In countries0.80text
Australiainstance ofA simple section break is insufficient to guard against this as the pantograph briefly connects both sections.In countries0.80text
the United Kingdominstance ofA simple section break is insufficient to guard against this as the pantograph briefly connects both sections.In countries0.80text
a pair of permanent magnets beside the rails at either side of the neutral section operate a bogie-mounted transducer on the train which causes a large electrical circuit-breaker to openinstance ofA simple section break is insufficient to guard against this as the pantograph briefly connects both sections.In countries0.80text
close when the locomotive or the pantograph vehicle of a multiple unit passes over theminstance ofA simple section break is insufficient to guard against this as the pantograph briefly connects both sections.In countries0.80text
in tunnelsinstance ofOverhead conductor railsGiven limited clearance0.80text
the overhead wire may be replaced by a rigid overhead railinstance ofOverhead conductor railsGiven limited clearance0.80text
viale Stelvioinstance ofTrolleybus and tram wires run parallel in streets0.80text
viale Umbriainstance ofTrolleybus and tram wires run parallel in streets0.80text

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