Coordination of technical standards has allowed some types of Power plug to be used across large regions to facilitate trade in electrical appliances, and for the convenience of travellers and consumers of imported electrical goods.
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The Power plug is a male connector, often with protruding pins that match the openings and female contacts in a socket.
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The Power plug is often designed so that the earth ground contact connects before the energized circuit contacts.
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Where a "neutral" conductor exists in supply wiring, polarisation of the Power plug can improve safety by preserving the distinction in the equipment.
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The most important difference from the Australian Power plug is that the Argentinian Power plug is wired with the live and neutral contacts reversed.
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The BS 1363 Power plug has a fuse rated to protect its flexible cord from overload and consequent fire risk.
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Alternative II, popularly known as the EuroPower plug, is a flat 2.
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The EuroPower plug is not rewirable and must be supplied with a flexible cord.
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EuroPower plug is used in the Middle East, Africa, South America, and Asia.
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Variation of the Danish Power plug is for use only on surge protected computer sockets.
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The Power plug is often used in companies, but rarely in private homes.
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Type 15 plug has three round pins, of the same dimensions as type 12, plus two smaller flat rectangular pins for two additional power phases.
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Type 25 Power plug has three rectangular pins of the same dimensions as type 23, plus two rectangular pins of the same dimensions as type 15.
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The Power plug is similar to, but not interchangeable with, the Israeli SI32 Power plug.
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Power plug was supplied by the public 240VDC mains which remained available in addition to the 240VAC mains until circa 1969, and thereafter from in-house rectifiers.
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The different style of plug makes it more difficult for office workers to connect computer equipment to a standard unprotected power line, or to overload the UPS by connecting other office appliances.
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