Railway electrification system in the context of "Overhead line"

The East Coast Main Line (ECML) is a 393-mile-long (632 km) electrified railway between its northern terminus at Edinburgh Waverley and southern terminus at London King's Cross. Peterborough, Doncaster, York, Darlington, Durham and Newcastle are on the line, which is a key transport artery on the eastern side of Great Britain running broadly parallel to the A1 road. The main line acts as a 'spine' for several diverging branches, serving destinations such as Cambridge, Leeds, Hull, Sunderland and Lincoln, all with direct services to London. In addition, a few ECML services extend beyond Edinburgh to serve other Scottish destinations, such as Stirling, Inverness, Dundee, or Aberdeen.

The line was built during the 1840s by three railway companies, the North British Railway, the North Eastern Railway, and the Great Northern Railway. In 1923, the Railways Act 1921 led to their amalgamation to form the London and North Eastern Railway (LNER) and the line became its primary route. The LNER competed with the London, Midland and Scottish Railway (LMS) for long-distance passenger traffic between London and Scotland. The LNER's chief mechanical engineer Nigel Gresley designed iconic Pacific steam locomotives including Flying Scotsman and Mallard, the latter of which achieved a world record speed for a steam locomotive, 126 mph (203 km/h) on the Grantham-to-Peterborough section on 3 July 1938.

The Gare d'Orsay (French: [ɡaʁ dɔʁsɛ]) is a former Paris railway station and hotel, built in 1900 to designs by Victor Laloux, Lucien Magne and Émile Bénard; it served as a terminus for the Chemin de Fer de Paris à Orléans (Paris–Orléans railway). It was the first electrified urban terminal station in the world, opened 28 May 1900, in time for the 1900 Exposition Universelle.

After its closure as a station in 1939, it reopened in December 1986 as the Musée d'Orsay, an art museum. The museum is currently served by the eponymous RER station.

The railway from Piraeus to Platy is an electrified double-track railway line that connects Athens to northern Greece and the rest of Europe. It constitutes the longest section of the mostly completed higher-speed rail line known as P.A.Th.E./P., which includes Greece's most important rail connection, that between Athens and Thessaloniki. Its northern end is the station of Platy, on the Thessaloniki–Bitola railway. In the south, it connects to the Athens Airport–Patras railway at the Acharnes Railway Center. The line passes through Thebes, Katerini and Larissa, and offers connections to several other cities (Chalcis, Lamia, Volos, Karditsa, Trikala) through branch lines.

The Harlem Line is an 82-mile (132 km) commuter rail line owned and operated by the Metro-North Railroad in the U.S. state of New York. It runs north from New York City to Wassaic, in eastern Dutchess County. The lower 53 miles (85 km) from Grand Central Terminal to Southeast, in Putnam County, is electrified with a third rail and has at least two tracks. The section north of Southeast is a non-electrified single-track line served by diesel locomotives. Before the renaming of the line in 1983, it eventually became the Harlem Division of the New York Central Railroad. The diesel trains usually run as a shuttle on the northern end of the line, except for rush-hour express trains in the peak direction (two to Grand Central in the morning, two from Grand Central in the evening).

With 38 stations, the Harlem Line has the most of any Metro-North main line. Its northern terminal, Wassaic, is the northernmost station in the system. It is the only Metro-North line used exclusively by that carrier (no use by Amtrak, though CSX services freight customers as far north as Mount Vernon) and the only one that uses the entirety of existing track. It is colored blue on Metro-North timetables and system maps, and stations on the line have blue trim. The blue color-coding appears to have started with timetables issued by predecessor New York Central for the then-Harlem Division as far back as 1965.

Dover is an active commuter railroad train station in the town of Dover, Morris County, New Jersey. Located at the end of electric service, Dover station serves as a secondary terminal of NJ Transit's Morristown and Montclair–Boonton Lines. Non-electric service continues west to Hackettstown on both lines. The next station to the west is Mount Arlington while the next station to the east is Denville. Dover station consists of a single island platform, accessible for the handicapped.

The first train in Dover arrived on July 31, 1848, with the extension of the Morris and Essex Railroad from Rockaway, which opened just 27 days prior. The Delaware, Lackawanna and Western Railroad constructed the current station depot on Dickerson Street in 1901, opening on November 1. The station depot joined the National Register of Historic Places in 1980. Today the station serves as a major transportation center locally, it also serves commuters in nearby Sussex County.

A railway infrastructure manager is a rail transport company or body of other type, responsible for maintaining railway infrastructure. The European Union defines it as "any body or undertaking that is responsible in particular for establishing and maintaining railway infrastructure. This may also include the management of infrastructure control and safety systems. The functions of the infrastructure manager on a network or part of a network may be allocated to different bodies or undertakings" This includes mainly railway track and catenary, if the railway line is electrified, and respective command and control systems. It can also include the stations and power supply network. A significant proportion of these companies are state-owned monopolies, responsible for all or most of the railway infrastructure within a given country.

Ownership and operation of these two components varies by location. In some places (notably, most of North America) private railway companies own and operate both the infrastructure and rolling stock (for example, Union Pacific). In the United Kingdom, the infrastructure is owned and maintained by Network Rail while rolling stock is largely owned and operated by private railway companies. In countries with nationalized rail systems such as China, both the infrastructure and rolling stock are owned and operated directly or indirectly by the national government. In the European Union (EU), separation of infrastructure and operation is mandated by law, so train operation is performed by another type of company, a railway undertaking which must be provided with non-discriminatory access to any railway path within the EU. Outside the European Union it is possible that the same company is owning the infrastructure and also operating trains and in that case this designation might not make sense. Infrastructure managers charge for the use of its network.

The Røros Line (Norwegian: Rørosbanen) is a 383-kilometer (238 mi) railway line which runs through the districts of Hedmarken, Østerdalen, and Gauldalen in Innlandet and Trøndelag, Norway. The line branches off from the Dovre Line at Hamar Station and runs a more easterly route to Støren Station, where the two lines meet again. The Røros Line also intersects with the Solør Line at Elverum Station. The single track, standard gauge line lacks electrification and only has centralized traffic control south of Røros Station. SJ Norge operate regional passenger trains. In addition the line is used by freight trains hauling lumber and wood chippings.

The first parts of the line was the Hamar–Grundset Line and the Trondhjem–Støren Line, which opened on 23 June 1862 and 5 August 1964, respectively. To save costs, the lines were built with narrow gauge, thus making it the first locomotive-hauled 1,067 mm (3 ft 6 in) line in Norway. The Grundset–Aamot Line extension to Rena Station was opened on 19 October 1871. The connecting line onwards to Støren opened on 13 October 1877. The 1880 completion of the Dovre Line to Hamar allowed a continuous train service linking Oslo and Trondheim, albeit with a break-of-gauge in Hamar.

The Bergen Line, or the Bergen Railway (Norwegian: Bergensbanen or Nynorsk: Bergensbana), is a 371-kilometre (231 mi) long scenic standard gauge railway line between Bergen and Hønefoss, Norway. The name is often applied to the entire route from Bergen to Oslo, including the Randsfjord and Drammen lines between Hønefoss and Oslo, covering a total distance of 496 kilometres (308 mi). It is the highest mainline railway line in Northern Europe, crossing the Hardangervidda plateau at 1,237 metres (4,058 ft) above sea level.

The railway opened from Bergen to Voss in 1883 as the narrow gauge Voss Line. In 1909, the route was continued over the mountain to Oslo and the whole route converted to standard gauge, and the Voss Line became part of the Bergen Line. The line is single track, and was electrified in 1954–64. The Bergen Line is owned and maintained by Bane NOR, and served with passenger trains by Vy Tog and freight trains by CargoNet. The Flåm Line remains as the only branch line, after the closure of the Hardanger Line. The western section from Bergen to Voss is also served by the Bergen Commuter Rail, and was shortened following the 1966 opening of the Ulriken Tunnel.

Railway electrification in Great Britain began in the late 19th century. A range of voltages has been used, employing both overhead lines and conductor rails. The two most common systems are 25 kV AC using overhead lines, and the 750 V DC third rail system used in Southeast England and on Merseyrail. As of October 2023, 6,065 kilometres (3,769 mi) (38%) of the British rail network was electrified.

According to Network Rail, as at 2003, 64% of the electrified network used the 25 kV AC overhead system, and 36% used the 660/750 V DC third-rail system.