Mains electricity refers to grid power, i.e. the wire wires above or below ground distributing electricity through many parts of the world. Voltage, frequency, and plug types differ by region.
Lists of voltage, frequency and plug types for various regions can be found at:
- https://en.wikipedia.org/wiki/Mains_electricity_by_country
- https://www.worldstandards.eu/electricity/plug-voltage-by-country/
- https://www.powerstream.com/cv.htm
See also:
