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  2. File:World Map of Mains Voltages and Frequencies, Detailed.svg

    en.wikipedia.org/wiki/File:World_Map_of_Mains...

    This map reflects the nominal voltage of residential buildings of most countries. In the USA and Canada, there are 2 nominal voltages: 120V and 240V concurrently. This is not a 3 phase system and 240V is not a phase-phase voltage.

  3. File:World map of electrical mains power plug types used.svg

    en.wikipedia.org/wiki/File:World_map_of...

    Reverted to version as of 12:04, 17 July 2020 (UTC) Map was broken, only showed Peru France Belarus and Sri Lanka 03:09, 12 March 2021 2,753 × 1,538 (1.22 MB)

  4. Mains electricity by country - Wikipedia

    en.wikipedia.org/wiki/Mains_electricity_by_country

    Mains electricity by country includes a list of countries and territories, with the plugs, voltages and frequencies they commonly use for providing electrical power to low voltage appliances, equipment, and lighting typically found in homes and offices. (For industrial machinery, see industrial and multiphase power plugs and sockets.) Some ...

  5. List of United States electric companies - Wikipedia

    en.wikipedia.org/wiki/List_of_United_States...

    Basin Electric Power Cooperative; Dairyland Power Coop; East River Electric Power Co-op; Freeborn-Mower Co-op Services; Great River Energy, and its 28 member cooperatives; Hutchinson Utilities Commission; Interstate Power and Light Company; L&O Power Co-op; Marshall Municipal Utilities; Minnkota Power Cooperative, and its 11 member cooperatives ...

  6. Electric watch - Wikipedia

    en.wikipedia.org/wiki/Electric_watch

    Watches using this technology include Timex M87/Laco 882, Citizen X-8 series and Seiko Electronic 31A. Another common example is ESA Dynotron cal. 9150. Tuning fork watches: Instead of a balance wheel, these watches used a tuning fork driven by a solenoid powered by a one-transistor oscillator circuit and no mechanical contacts. [8]

  7. North American power transmission grid - Wikipedia

    en.wikipedia.org/wiki/North_American_power...

    The Energy Policy Act of 1992 required transmission line owners to allow electric generation companies open access to their network [3] [4] and led to a restructuring of how the electric industry operated in an effort to create competition in power generation. No longer were electric utilities built as vertical monopolies, where generation ...

  8. Electric power - Wikipedia

    en.wikipedia.org/wiki/Electric_power

    Electric power is the rate of transfer of electrical energy within a circuit.Its SI unit is the watt, the general unit of power, defined as one joule per second.Standard prefixes apply to watts as with other SI units: thousands, millions and billions of watts are called kilowatts, megawatts and gigawatts respectively.

  9. Electrical device - Wikipedia

    en.wikipedia.org/wiki/Electrical_device

    Electrical devices or electric devices are devices that functionally rely on electric energy (AC or DC) to operate their core parts (electric motors, transformers, lighting, rechargeable batteries, control electronics). They can be contrasted with traditional mechanical devices which depend on different power sources like fuels or human ...