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The International Electrotechnical Commission (IEC) publishes a web microsite World Plugs [1] which provides the main source for this page, except where other sources are indicated. World Plugs includes some history, a description of plug types, and a list of countries giving the type(s) used and the mains voltage and frequency.
A passive electric power adapter, sometimes called a travel plug or travel adapter, allows using a plug from one region with a foreign socket. As other countries supply 120-volt, 60 Hz AC, using a travel adapter in a country with a different supply poses a safety hazard if the connected device does not support both input voltages.
The Réseau Express Régional (French pronunciation: [ʁezo ɛkspʁɛs ʁeʒjɔnal]; English: Regional Express Network), commonly abbreviated RER (pronounced), is a hybrid commuter rail and rapid transit system, similar to the S-Bahns of German-speaking countries and the S Lines of Milan, serving Paris and its suburbs.
Afterwards, in the 1920s, the main lines starting from Paris and lines in the Pyrenees were electrified with 1,500 V DC. After World War II and with the improvements in power electronics, tests were made with 20 kV AC and subsequently with 25 kV AC in the Alps, which was considered satisfactory. Then the North and the East of France were ...
Railway electrification is the development of powering trains and locomotives using electricity instead of diesel or steam power.The history of railway electrification dates back to the late 19th century when the first electric tramways were introduced in cities like Berlin, London, and New York City.
In 1999, it changed its name to Alstom Power & Conversion, then on 10 November 2005, it became a separate company from Alstom. On 29 March 2011, it was announced that a 90% stake in Converteam was to be bought by GE Energy for $3.2 billion. [2] This deal was completed on 2 September 2011.
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