List of railway electrification systems

Key to the tables below

• Volts: voltage or volt
• Current:
• * DC = direct current
• * xx Hz = frequency in hertz
• ** AC supplies are single-phase, except where marked three-phase
• Conductors:
• *overhead line or
• *conductor rail, usually a third rail to one side of the running rails
• ** Conductor rail can be:
• *** top contact: oldest, least safe, most affected by ice, snow, rain and leaves
• *** side contact: newer, safer, less affected by ice, snow, rain and leaves
• *** bottom contact: newest, safest, least affected by ice, snow, rain and leaves

  Systems using standard voltages

Overhead systems

600 V DC

750 V DC

1,200 V DC

Country	Location	Name of system	Notes
Cuba	Havana – Matanzas and branches	Ferrocarriles Nacionales de Cuba	originally the Hershey Electric Railway
Estonia			1924–1941 and 1946–1958, converted to 3000 V DC
Germany	Lusatian		gauge mining railways in the lignite district
Spain	Barcelona, Catalonia	Barcelona Metro	uses an overhead conductor rail/beam system
Spain	Palma – Sóller, Majorca	Sóller Railway
Switzerland	Canton of Bern / canton of Solothurn	Aare Seeland mobil
Switzerland	Dietikon, canton of Zürich – Wohlen, canton of Aargau	Bremgarten-Dietikon-Bahn
Switzerland	Zürich – Esslingen, canton of Zürich	Forchbahn	Forchbahn proper only; Forchbahn trains access their Zürich terminus via the Zürich tram network, which is electrified at 600 V DC. The rolling stock is equipped to run off both voltages.
Switzerland	Frauenfeld, canton of Thurgau – Wil, canton of St. Gallen	Frauenfeld-Wil-Bahn
Switzerland	Meiringen – Innertkirchen, canton of Bern	Meiringen–Innertkirchen Bahn
Switzerland	Zürich – Uetliberg, canton of Zürich	Sihltal Zürich Uetliberg Bahn	Uetliberg line only – uses an offset overhead line and pantograph to allow running on track shared with the AC-electrified Sihltal line
	East Bay, California	East Bay Electric Lines	1911–1941

1,500 V DC

3 kV DC

AC,  Hz /

AC,

Country	Location	Name of system	Notes
Argentina	Buenos Aires	Roca Line	Constitución - Ezeiza Constitución - Alejandro Korn Constitución - Bosques Constitución - La Plata
Australia	Queensland: Brisbane, North Coast Line, Coalfields	Queensland Rail
Australia	Western Australia: Perth	Transperth
Australia	South Australia: Adelaide	Adelaide Metro	to be electrified
Belarus			national standard
Belgium	High-speed lines and some other lines	Belgium National Railways	the rest of the network is 3 kV DC — see rail transport in Belgium
Bosnia and Herzegovina		Rail transport in Bosnia and Herzegovina
Botswana			proposed line to Namibia
Bulgaria		Bulgarian State Railways BDZ
China	Nationwide	China Railway Corporation	national standard
China	Beijing	Beijing Subway	Daxing Airport Line only
China	Chengdu	Chengdu Metro	Lines 17, 18 and 19 only
China	Wenzhou	Wenzhou Rail Transit
Congo
Croatia	Nationwide	Croatian Railways	national standard
Czech Republic	Southern lines only	Czech Railway Infrastructure Administration
Denmark	nationwide	Banedanmark	See rail transport in Denmark
Djibouti	Addis Ababa–Djibouti Railway	Ethiopian Railway Corporation
Ethiopia	Addis Ababa–Djibouti Railway	Ethiopian Railway Corporation
Finland	Nationwide	Finnish Railway network	National standard
France	north and new lines	French National Railways
Germany	Harz	Rübelandbahn
Greece	Nationwide	Hellenic Railways Organisation	National standard. See Railways of Greece for details of progress.
Hong Kong	Kowloon, New Territories	Mass Transit Railway Corporation and
Hungary		Hungarian State Railways and Raaberbahn
India	Nationwide	Indian Railways	Entire IR network uses the current system since 2016.
India	Mumbai	Mumbai Suburban Railway	Conversion from 1.5 kV DC to the current system was completed in 2012 and 2016 respectively
India	Mumbai	Mumbai Metro
India	Chennai	Chennai Metro
India	Delhi	Delhi Metro
Iran			Planned
Israel		Israel Railways	Construction contract awarded in December 2015. Initial test runs began December 2017.
Italy			new high-speed lines only
Japan	Kantō, Tōhoku, and Hokkaido regions	JR East Tohoku Shinkansen, Joetsu Shinkansen, and Hokuriku Shinkansen JR Hokkaido Hokkaido Shinkansen	60 Hz in some areas, see 60 Hz overhead below.
Kazakhstan
Latvia		Latvian Railways	Eastern lines only
Lithuania	Kena — Kaunas and Lentvaris — Trakai	Lithuanian Railways	Electrification of Naujoji Vilnia – Kena — Gudogai route for Vilnius – Minsk services is established on 2017. Further Kaunas – Klaipeda corridor electrification will follow project.
Luxembourg	nationwide	Chemins de fer luxembourgeois	National standard, but the Luxembourg – Arlon line is electrified under 3 kV DC
Malaysia	Padang Besar - KL Sentral - Gemas	KTM ETS, Keretapi Tanah Melayu Berhad	Under Construction: Hat Yai - Padang Besar and Gemas - Johor Bahru
Malaysia	Bukit Mertajam - Padang Regas and Butterworth - Padang Besar	KTM Komuter Northern Sector, Keretapi Tanah Melayu Berhad
Malaysia	Batu Caves - Pulau Sebang/Tampin, Tanjung Malim - Port Klang and KL Sentral - Terminal Skypark	KTM Komuter Central Sector, Keretapi Tanah Melayu Berhad
Malaysia	KL Sentral - KLIA2	Express Rail Link
Montenegro	Belgrade–Bar railway and Nikšić–Podgorica railway	Railways of Montenegro
Morocco	Kenitra–Tangier high-speed rail line	ONCF	Casablanca–Kenitra section of high-speed rail remains at 3 kV DC
Namibia	Proposed line to Botswana
Netherlands	Used on new High Speed Lines and Freight Lines	Dutch Railways	1.5 kV DC used on the rest of the network
New Zealand	Auckland	Auckland suburban	77 km between Swanson and Papakura; first service 28 April 2014
New Zealand		North Island Main Trunk Railway	Central North Island section, 411 km between Palmerston North and Hamilton
North Macedonia		Makedonski Železnici
Portugal		Portuguese Railways	except the Linha de Cascais
Romania		Romanian Railways
Russian Federation		Russian Railways	National standard
Saudi Arabia	Haramain high-speed railway	Saudi Railways Organization	Renfe Operadora and Adif will operate the trains and manage the line until 2030
Serbia	nationwide	Serbian Railways
Slovakia		Slovak Republic Railways	South-western lines only and the entire network to follow
Spain		ADIF Alta Velocidad	High-speed lines only
South Africa		Transnet Freight Rail, Gautrain
Thailand	Bangkok	Suvarnabhumi Airport Link
Tunisia
Turkey	nationwide	Turkish State Railways	National standard
United Kingdom	Nationwide	Network Rail	except Southern region and Merseyside
Ukraine		Ukrainian Railways	national standard, in most of the west; also 3000 V DC in the east
Uzbekistan
Zimbabwe	Gweru-Harare	National Railways of Zimbabwe	de-energised in 2008

AC,

Country	Location	Name of system	Notes
Canada	Montreal	Deux-Montagnes Line	built by CNoR in 1918 as 2400 V DC, converted to 3000 V DC in the 1980s, converted to 25 kV AC/60 Hz in 1995 by ARTM, being converted to 1500 V DC for the REM system.
Japan	Kantō, Chūbu, Kansai, Chūgoku, and Kyushu regions	Tōkaidō-Sanyō Shinkansen Hokuriku Shinkansen Kyushu Shinkansen	50 Hz in eastern Japan; see 25 kV AC 50 Hz overhead above
South Korea	South Korea	Korail	all Korail freight/passenger lines except Seoul subway Line 3
South Korea	Seoul	Shinbundang line
South Korea	Incheon, Seoul	A'REX
Mexico	Mexico City	Ferrocarril Suburbano de la Zona Metropolitana del Valle de México
Taiwan	Taiwan	Taiwan Railways Administration	all electrified lines
Taiwan	Western Taiwan	Taiwan High Speed Rail
United States	New Jersey	Morris & Essex Lines, New Jersey Transit	former system
United States	Aberdeen-Matawan to Long Branch, New Jersey	North Jersey Coast Line, New Jersey Transit	Converted in 1978 from Pennsylvania Railroad system to the on the Rahway-Matawan ROW and electrification extended to Long Branch in 1988. The Matawan-Long Branch voltage converted from system to the in 2002.
United States	New York, NY to Boston	Northeast Corridor, Amtrak	electrified in 2000; see Amtrak's 60 Hz traction power system
United States	Denver	Denver RTD	opened in 2016; separate 750 V DC system for light rail
United States	San Francisco Peninsula	Caltrain	under construction, expected by 2022; see Electrification of Caltrain
United States	New Mexico	Navajo Mine Railroad
United States	Texas	Texas Utilities, Monticello & Martin Lake	see E25B and Internet reference

Conductor rail systems

600 V DC conductor

Type	Country	Location	Name of system	Notes
Top contact	Argentina	Buenos Aires	Urquiza Line	Federico Lacroze-General Lemos
Top contact	Canada	Toronto	Toronto Subway and Rapid Transit	only on subway lines
Top contact	Greece	Athens	EIS/ISAP	used between 1904 and 1985
Top contact	Italy	Turin	Superga Rack Railway
Top contact	Japan	Tokyo	Tokyo Metro Ginza Line and Marunouchi Line
	Japan	Nagoya, Aichi	Nagoya Municipal Subway Higashiyama Line and Meijō Line
Top contact	Sweden	Stockholm	Stockholm Metro	650 V, Green and Red Lines
Top contact	United Kingdom	Glasgow	Glasgow Subway
Top contact	United States	Boston	Massachusetts Bay Transportation Authority	Red and Orange Lines, the subway part of the Blue Line southwest of Airport Station
Top contact	United States	Chicago	Chicago "L"	elevated and subway lines
Top contact	United States	New York City	New York City Subway
Top contact	United States	New York City	Staten Island Railway
Top contact	United States	New York City metro area	PATH
Top contact	United States	Philadelphia	Southeastern Pennsylvania Transportation Authority	Broad Street Line Market–Frankford Line Norristown High Speed Line
	United States	Bay Lake, Florida	Walt Disney World Monorail System

750 V DC conductor

Bottom contact

Country	Location	Name of system	Notes
Algeria	Algiers	Algiers Metro
Austria	Vienna	Vienna U-Bahn
Brazil	São Paulo	São Paulo Metro	except Lines 4 and 5
China	Beijing	Beijing Subway	Capital Airport Line only
China	Kunming	Kunming Metro	except Line 4
China	Tianjin	Tianjin Metro	Lines 2 and 3 only
China	Wuhan	Wuhan Metro	Lines 1, 2, 3 and 4 only
Czech Republic	Prague	Prague Metro
Denmark	Copenhagen	Copenhagen Metro
Egypt	Cairo	Cairo Metro	Line 2 and Line 3
Finland	Helsinki	Helsinki Metro
Germany	Berlin	Berlin U-Bahn	Lines from U5 to U9. Negative polarity.
Germany	Hamburg	Hamburg U-Bahn
Germany	Munich	Munich U-Bahn
Germany	Nuremberg	Nuremberg U-Bahn
India	Bangalore	Namma Metro
India	Kochi	Kochi Metro
South Korea	Busan	Busan-Gimhae Light Rail Transit
Malaysia	Klang Valley	Klang Valley Integrated Transit System LRT & MRT, and KL Monorail	to be used on Bandar Utama–Klang and Sungai Buloh–Serdang–Putrajaya lines
Netherlands	Amsterdam	Amsterdam Metro	including line 51 north of Station Zuid
Netherlands	Rotterdam	Rotterdam Metro	North of Capelsebrug station overhead wires
Norway	Oslo	Oslo T-bane
Poland	Warsaw	Warsaw Metro
Romania	Bucharest	Bucharest Metro
Singapore	Singapore	Mass Rapid Transit	North South Line, East West Line and Circle Line operated by SMRT Trains Downtown Line operated by SBS Transit Thomson-East Coast Line
Taiwan	Kaohsiung	Kaohsiung Mass Rapid Transit
Taiwan	Taipei	Taipei Metro
Taiwan	Taoyuan-Taipei	Taoyuan Metro
Turkey	Ankara	Ankara Metro
Turkey	Istanbul	Istanbul Metro	Lines M2 and M6 only
Turkey	Izmir	Izmir Metro
United Kingdom	London	Docklands Light Railway
United States	New York City	Metro-North Railroad

Side contact

Country	Location	Name of system	Notes
Canada	Montreal	Montreal Metro
Chile	Santiago	Santiago Metro
France	Paris	Paris Métro	Positive polarity on guide bars. See DC, four-rail below.
France	Lyon	Lyon Métro	Positive polarity on guide bars. See DC, four-rail below.
France	Marseille	Marseille Métro	Positive polarity on guide bars. See DC, four-rail below.
France	Lille	Lille Métro	Positive polarity on guide bars. See DC, four-rail below.
France	Rennes	Rennes Métro	Positive polarity on guide bars. See DC, four-rail below.
France	Toulouse	Toulouse Métro	Positive polarity on guide bars. See DC, four-rail below.
Hong Kong	Hong Kong	Hong Kong International Airport Automated People Mover	Mitsubishi "Crystal Mover" system using two power rails with side collection.
Indonesia	Palembang, South Sumatra	Palembang Light Rail Transit	-
Japan	Sapporo, Hokkaido	Sapporo Municipal Subway Namboku Line
Singapore	Singapore	Light Rail Transit	Sengkang LRT Line and Punggol LRT Line operated by SBS Transit
Singapore	Singapore	Sentosa Express	Sentosa Express operated by SDC
United States	Las Vegas	Las Vegas Monorail

Top contact

Country	Location	Name of system	Notes
China	Beijing	Beijing Subway	Capital Airport Line use button contact
China	Tianjin	Tianjin Metro	Line 1 only
France	Paris	Paris Métro
Germany	Berlin	Berlin U-Bahn	Lines from U1 to U4
Greece	Athens	Athens Metro	Line 1 was 600 V before 1985.
Hungary	Budapest	Budapest Metro	except line M1, which is 600 V DC with overhead lines.
India	Kolkata	Kolkata Metro
Japan	Osaka, Osaka	Osaka Metro	except the Sakaisuji Line, Nagahori Tsurumi-ryokuchi Line, and the Imazatosuji Line, which are 1,500 V DC with overhead lines.
Japan	Suita, Osaka Toyonaka, Osaka	Kita-Osaka Kyuko Railway
Japan	Higashiosaka, Osaka Ikoma, Nara Nara, Nara	Kintetsu Keihanna Line
Japan	Yokohama, Kanagawa	Yokohama Municipal Subway	Blue Line only
North Korea	Pyongyang	Pyongyang Metro	based on fleet of cars from Beijing and Germany
South Korea	Yongin	Everline
Portugal	Lisbon	Lisbon Metro
Puerto Rico	San Juan	Tren Urbano
Sweden	Stockholm	Stockholm Metro	Nominal voltage 650 V, subway 3 750 V. Subway 1 and 2 will change in the long term to 750 V.
United Kingdom	Liverpool	Merseyrail
United Kingdom	London	Northern City Line	access to City
United Kingdom	London	LNWR Suburban Network	formerly four-rail out of Euston and Broad Street, curtailed, upgraded and standardised
United Kingdom	Southern England	Southern Region of British Railways and successors	660 V system upgraded and expanded
United States	Atlanta, Georgia	MARTA
United States	Los Angeles, California	Los Angeles Metro Rail	Red and Purple Lines
United States	Miami, Florida	Metrorail
United States	New York City and Long Island East River Tunnels shared with Amtrak	Long Island Rail Road	Central, Greenport, and Oyster Bay branches not electrified; Montauk Branch not electrified east of Babylon; Port Jefferson Branch not electrified east of Huntington
United States	Philadelphia, PA	PATCO Speedline
United States	Puerto Rico	Tren Urbano
United States	Washington, D.C.	Washington Metro
United States	within the Hudson and East River Tunnels as well as under Manhattan Northeast Corridor	Amtrak
United States	within the Hudson Tunnel into Manhattan	New Jersey Transit

Mixed

Type	Country	Location	Name of system	Notes
See note	China	Tianjin	Tianjin Metro	Top contact in Line 1, bottom contact in Lines 2 and 3

1200 V DC conductor

Side contact

Country	Location	Name of system	Notes
Germany	Hamburg	Hamburg S-Bahn	15 kV/16.7 Hz with overhead line in part of network.
United Kingdom	Manchester	Manchester-Bury	Dismantled 1991, converted to Manchester Metrolink tramway

Systems using non-standard voltages

Overhead systems

DC voltage

Voltage	Country	Location	Name of system	Notes
120	United Kingdom	Seaton, Devon	Seaton Tramway	Half scale trams. Operated 1969-now. Substations have battery banks for back up.
250	United States	Chicago	Chicago Tunnel Company	operated 1906–1959
525	Switzerland	Lauterbrunnen	Bergbahn Lauterbrunnen-Mürren
550	China	Hong Kong	Hong Kong Tramways
550	Isle of Man	Isle of Man	Manx Electric Railway	including Snaefell Mountain Railway
550	India	Kolkata	Trams in Kolkata
650	United States	Buffalo, New York	Buffalo Metro Rail
650	United States	El Paso, Texas	El Paso Streetcar
650	United States	Pittsburgh	Pittsburgh Light Rail
650	Switzerland	Basel	Basel Trams
700	Switzerland	Bex – Col de Bretaye, Vaud	Chemin de fer Bex-Villars-Bretaye
740	USA	Oklahoma City	Oklahoma City Streetcar
800	Poland	Tricity	Szybka Kolej Miejska	Operated 1951-1976. Converted to 3,000 V DC in 1976.
825	USA	Portland, Oregon	MAX, TriMet	light rail sections west of NE 9th Avenue & Holladay Street utilize a 750 V system
850	Switzerland	Capolago – Monte Generoso, Ticino	Ferrovia Monte Generoso
900	Switzerland	Fribourg	Gruyere – Fribourg – Morat
900	Switzerland	Montreux	Montreux-Oberland Bernois
1,000	Switzerland Italy	St Moritz, canton of Graubünden – Tirano, Lombardy	Rhätische Bahn	Bernina line only; remainder of system electrified at 11 kV AC, 16 2⁄3 Hz. The Bernina line is an international line linking Switzerland with Italy
1,000	Hungary	Budapest	Budapest Commuter Rail and Rapid Transit
1,100	Argentina	Buenos Aires	Buenos Aires Metro	only Line A
1,250	Switzerland	Canton of Bern	Regionalverkehr Bern-Solothurn	All lines except tram line 6 between Bern and Worb, which is electrified at 600 V DC
1,350	Italy Switzerland	Domodossola, Piedmont – Locarno, canton of Ticino	Ferrovia Domodossola–Locarno	International railway between Italy and Switzerland
1,350	Switzerland	Lugano – Ponte Tresa, canton of Ticino	Ferrovia Lugano–Ponte Tresa
2,400	Germany	Lausitzer		work line of the Lausitzer Brown Coal AG company
2,400	Poland	Konin	PAK KWB KONIN	-
2,400	Poland	Turek	PAK KWB ADAMÓW	-
2,400	France	Grenoble	Chemin de fer de La Mure	−1,200 V, +1,200 V two wire system from 1903 to 1950. 2,400 V since 1950.
3,000	USA		Chicago, Milwaukee, St. Paul and Pacific Railroad	on two sections, dismantled 1974
3,500	United Kingdom	Manchester	Bury – Holcombe Brook	operated 1913–1918
6,000	Russia			experiments in the late 1970s

AC voltage

Voltage	Frequency	Country	Location	Name of system	Notes
5,500	Hz	Germany	Murnau	Ammergau Railway	1905–1955, after 1955 15 kV, 16.7 Hz
6,250	50 Hz	United Kingdom	London, Essex, Herts	Great Eastern suburban lines	Great Eastern suburban lines from Liverpool Street London, 1950s–c1980
6,250	50 Hz	United Kingdom	Glasgow	Glasgow suburban lines	Sections of the North Clyde Line and Cathcart Circle Line from 1960-1970s
6,300	25 Hz	Germany	Hamburg	Hamburg S-Bahn	Operated with AC 1907–1955. Used both AC and DC 1940–1955.
6,500	25 Hz	Austria	Sankt Pölten	Mariazellerbahn
6,600	25 Hz	Norway	Orkdal	Thamshavnbanen
6,600	50 Hz	Germany	Cologne Lowland	:de:Hambachbahn|Hambachbahn and :de:Nord-Süd-Bahn |Nord-Süd-Bahn	transports lignite from open-pit mines to powerplants. Owned by RWE.
6,700	25 Hz	United Kingdom	Morecambe branch line	Lancaster to Heysham	1908–1951 Converted to 25 kV 50 Hz as a test bed for the future main line electrification system
6,700	25 Hz	United Kingdom	South London line	London Victoria station to London Bridge station	1909–1928 Converted to 660 V DC third-rail supply
8 kV	25 Hz	Germany	Karlsruhe	Alb Valley Railway	1911–1966, today using 750 V DC
10 kV	25 Hz	Netherlands	The Hague - Rotterdam	Hofpleinlijn	from 1908, in 1926 converted to 1,500 DC, In 2006 replaced by 750 V DC light rail
10 kV	50 Hz	Russia	industrial railways at quarries	Russian Railways	operated from 1950s at coal and ore quarries
10 kV	50 Hz	Ukraine	industrial railways at quarries	Ukrainian Railways	operated from 1950s at coal and ore quarries
10 kV	50 Hz	Kazakhstan	industrial railways at quarries	some private industrial railways in Kazakhstan	operated from 1950s at coal and ore quarries
11 kV	Hz	Switzerland	Graubünden	Rhätische Bahn	Except the Bernina line, which is electrified at 1,000 V DC
11 kV	Hz	Switzerland		Matterhorn-Gotthard-Bahn	formerly Furka Oberalp Bahn and BVZ Zermatt-Bahn
11 kV	50 Hz	France	Saint-Gervais-les-Bains	Mont Blanc Tramway
11 kV	25 Hz	United States		Pennsylvania Railroad Etc.,	All lines now or See Railroad electrification in the United States
12 kV	Hz	France	lines in Pyrenees	Chemin de fer du Midi	most converted to 1,500 V 1922–23; Villefranche-Perpignan diesel 1971, then 1,500 V 1984
12 kV	25 Hz	United States	Washington, DC - New York City	Northeast Corridor, Amtrak	11 kV until 1978
12 kV	25 Hz	United States	Harrisburg, PA to Philadelphia, PA	Keystone Corridor, Amtrak	11 kV until 1978
12 kV	25 Hz	United States	Philadelphia	SEPTA	Regional Rail system only; 11 kV until 1978
12 kV	25 Hz	United States	Rahway to Aberdeen-Matawan, New Jersey	North Jersey Coast Line, New Jersey Transit	1978-2002. Converted to
12.5 kV	60 Hz	United States	Pelham, NY-New Haven, CT	New Haven Line, Metro-North Railroad, Amtrak	11 kV until 1985
16 kV	50 Hz	Hungary	Budapest–Hegyeshalom railway	Budapest to Hegyeshalom	Kandó system 1931–1972, converted to
20 kV	50 Hz	Germany	Freiburg	Höllentalbahn	Operated 1933–1960. Converted to 15 kV Hz.
20 kV	50 Hz	France	Aix-les-Bains – La Roche-sur-Foron	Société Nationale des Chemins de fer	Operated 1950–1953. Converted to 25 kV 50 Hz.
20 kV	50 Hz	Japan	most electrified JR/the third sector lines in Hokkaidō and Tōhoku	JR East, JR Hokkaidō, and others
20 kV	60 Hz	Japan	most electrified JR/the third sector lines in Kyūshū and Hokuriku region	JR Kyūshū and others
50 kV	50 Hz	South Africa	Northern Cape, Western Cape	Sishen–Saldanha railway line	opened in 1976 and hauls iron ore
50 kV	60 Hz	Canada	British Columbia	Tumbler Ridge Subdivision of BC Rail	Opened in 1983 to serve a coal mine in the northern Rocky Mountains. No longer in use.
50 kV	60 Hz	United States	Arizona	Black Mesa and Lake Powell Railroad	First line to use 50 kV electrification when it opened in 1973. This was an isolated coal-hauling short line; no longer in use.
50 kV	60 Hz	United States	Utah	Deseret Power Railroad	Formerly Deseret Western Railway. This is an isolated coal-hauling short line.

Three-phase AC voltage

Two wires

Voltage	Current	Country	Location	Name of system	Notes
725	50 Hz, 3Ø	Switzerland	Zermatt – Gornergrat, canton of Valais	Gornergratbahn
750	40 Hz, 3Ø	Switzerland	Burgdorf – Thun	:de:Burgdorf-Thun-Bahn|Burgdorf-Thun Bahn	Operated 1899–1933 converted to 15 kV Hz in 1933
800	60 Hz, 3Ø	Brazil	Rio de Janeiro	Corcovado Rack Railway
1125	50 Hz, 3Ø	Switzerland	Interlaken	Jungfraubahn
3600	15 Hz, 3Ø	Italy	Northern Italy	Valtellina Electrification	1902–1917
3600	50 Hz, 3Ø	France	Saint-Jean-de-Luz to Larrun	Chemin de Fer de la Rhune
3600	16 Hz, 3Ø	Switzerland, Italy	Simplon Tunnel		1906–1930
3600	Hz, 3Ø	Italy			operated 1912–1976 in Upper Italy
3600	Hz, 3Ø	Italy	Porrettana railway	FS	1927–1935
3600	Hz, 3Ø	Italy	Trento/Trient to Brenner	Brenner Railway	1929 - 1965
5200	25 Hz, 3Ø	Spain	Almeria – Gergal		1911–1966?
6600	25 Hz, 3Ø	United States	Cascade Tunnel	Great Northern Railway	1909 - 1929
10 kV	45 Hz, 3Ø	Italy	Roma - Sulmona	FS	1929–1944

Three wires

Voltage	Current	Country	Location	Name of system	Notes
3000 V	50 Hz	Germany	Kierberg	:de:Zahnradbahn Tagebau Gruhlwerk|Zahnradbahn Tagebau Gruhlwerk	rack railway operated 1927–1949
10000 V	50 Hz	Germany	Berlin-Lichterfelde		test track ; variable voltage and frequency; trial runs 1898–1901
14 kV	38 Hz - 48 Hz	Germany	Zossen - Marienfelde		test track ; trial runs 1901–1904 variable voltage between 10 kV and 14 kV and frequency between 38 Hz and 48 Hz.
	50 Hz	Russia	Ship elevator of Krasnoyarsk Reservoir		length: 1.5 km, 9000 mm gauge

Conductor rail systems (all DC voltage)

Top contact systems

Side contact systems

Voltage	Type	Country	Location	Name of system	Notes
850	third rail	France	Martigny	Ligne de Saint Gervais - Vallorcine
1200	third rail	United Kingdom	Manchester	Manchester-Bury	Dismantled 1991, converted to Manchester Metrolink tramway
1200	third rail	Germany	Hamburg	Hamburg S-Bahn	Since 1940. Used both third rail DC and overhead line AC until 1955. Also uses German standard 15 kV, 16 2/3 Hz overhead electrification on the section between Neugraben and Stade on line S3, opened in December 2007.

Bottom contact systems

Voltage	Type	Country	Location	Name of system	Notes
650	third rail	Canada	Vancouver	SkyTrain	Expo Line and Millennium Line
700	third rail	United States	New York	Metro-North Railroad	Hudson and Harlem Lines, southern part of New Haven Line. Original New York Central Railroad electrification scheme to Grand Central Terminal.
700	third rail	United States	Philadelphia	Market-Frankford Line	Originally 600 V, raised to 700 V
825	third rail	Bulgaria	Sofia	Sofia Metro	Lines 1 and 2
825	third rail	Russia	Moscow	Moscow Metro	Nominal voltage: 825 V; allowed range: 550 V - 975 V
825	third rail	Russia	Saint Petersburg	Saint Petersburg Metro	Nominal voltage: 825 V; allowed range: 550 V - 975 V
825	third rail	Russia	Novosibirsk	Novosibirsk Metro	Nominal voltage: 825 V; allowed range: 550 V - 975 V
825	third rail	Russia	Nizhny Novgorod	Nizhny Novgorod Metro	Nominal voltage: 825 V; allowed range: 550 V - 975 V
825	third rail	Russia	Samara	Samara Metro	Nominal voltage: 825 V; allowed range: 550 V - 975 V
825	third rail	Russia	Yekaterinburg	Yekaterinburg Metro	Nominal voltage: 825 V; allowed range: 550 V - 975 V
825	third rail	Russia	Kazan	Kazan Metro	Nominal voltage: 825 V; allowed range: 550 V - 975 V
825	third rail	Ukraine	Kiev	Kiev Metro	FSU underground systems share the same standard
825	third rail	Ukraine	Kharkiv	Kharkiv Metro	FSU underground systems share the same standard
825	third rail	Ukraine	Dnipro	Dnipro Metro	FSU underground systems share the same standard
830	third rail	Argentina	Buenos Aires	Mitre Line	Retiro - José León Suárez Retiro - Bartolomé Mitre Retiro - Tigre
830	third rail	Argentina	Buenos Aires	Once - Moreno	Sarmiento Line
850	third rail	France	Villefranche	Ligne de Cerdagne	Often referred to as the "Yellow Train"
850	third rail	Austria	Vienna	Wiener Lokalbahn
900	third rail	Belgium	Brussels	Brussels Metro
1500	third rail	China	Beijing	Beijing Subway	Line 7 only
1500	third rail	China	Guangzhou	Guangzhou Metro	Lines 4, 5, 6, 14 and 21 only. Overhead wires in depots; all trains are equipped with pantographs
1500	third rail	China	Kunming	Kunming Metro	Line 4 only
1500	third rail	China	Qingdao	Qingdao Metro
1500	third rail	China	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.
1500	third rail	China	Shenzhen	Shenzhen Metro	Lines 3 and 6 only. Overhead wires in depot of Line 6, all trains on Line 6 have pantographs for depot use.
1500	third rail	China	Wuhan	Wuhan Metro	Lines 7, 8, 11 and Yangluo Line only
1500	third rail	China	Wuxi	Wuxi Metro

Special or unusual types

DC, plough collection from conductors in conduit below track

• London County Council Tramways, later operated by London Transport
• streetcars in New York City, New York
• Washington, D.C. streetcars
• Panama Canal locks' ship handlers

  DC, one ground-level conductor

• Wolverhampton Corporation Tramways, England
• Bordeaux Tramway, France
• Sydney Light Rail

  DC, two-wire

• Greenwich, England. Previously used by trams when in the vicinity of Greenwich Observatory; separate from trolleybus supply.
• Cincinnati, Ohio, US. Tram system used this arrangement throughout, probably due to legal constraints on ground return currents.
• Havana and Guanabacoa, Cuba. Tram systems in both cities used this arrangement.
• Lisbon, Portugal. Elevador da Bica, Elevador da Glória and Elevador da Lavra.

  DC, power from running rails

• Gross-Lichterfelde Tramway, 180 V
• Ungerer Tramway
• transportable railways as a ride for children

  DC, four-rail

Footnotes