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The plug is a male connector, often with protruding pins that match the openings and female contacts in a socket. Typically no energy is supplied to any exposed pins or terminals on the socket, for safety.Ī plug is the movable connector attached to an electrically operated device, and the socket is fixed on equipment or a building structure and connected to an energised electrical circuit. Clockwise from top left: CEE 7/4 (German) plug a matching CEE 7/3 socket with exposed earth (ground) projections on circumference of socket CEE 7/5 (French) socket with projecting earth pin. Plugs and sockets may sometimes combine male and female contacts. 8 Single phase electric stove plugs and sockets.7.4 Italian BTicino brand Magic security connector.4.12 Soviet standard GOST 7396 C 1 unearthed.4.11 North America, Central America and IEC 60906-2.4.10.1 Italian multiple standard sockets.4.7 Danish Section 107-2-D1 earthed (Type K).4.5.4 CEE 7/7 plug (compatible with E and F).4.5.3 CEE 7/5 socket and CEE 7/6 plug (French Type E).4.5.2 CEE 7/3 socket and CEE 7/4 plug (German "Schuko" Type F).4.5.1 CEE 7/1 unearthed socket and CEE 7/2 unearthed plug.4.4.1 BS 546 and related types (Type D and M).4.3 Brazilian standard NBR 14136 (Type N).4.2 Australian/New Zealand standard AS/NZS 3112 (Type I), used in Australasia.3.6 Appliance connections and extensions.3.5 Voltage rating of plugs and power cords.
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Some multi-standard sockets allow use of several types of plug improvised or unapproved adaptors between incompatible sockets and plugs may not provide the full safety and performance of an approved socket-plug combination. Coordination of technical standards has allowed some types of 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. Today there are about 20 types in common use around the world, and many obsolete socket types are found in older buildings. A proliferation of types developed for both convenience and protection from electrical injury.
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Plugs and sockets for portable appliances became available in the 1880s, to replace connections to light sockets with wall-mounted outlets. Different standard systems of plugs and sockets are used around the world. Electrical plugs and sockets differ from one another in voltage and current rating, shape, size, and connector type. Join us in our mission of opening the world through education – and live it for yourself.AC power plugs and sockets connect electric equipment to the alternating current (AC) mains electricity power supply in buildings and at other sites. Largest privately owned education company in the world, and a sponsor of 7 Olympic games.Global presence in 50+ countries and 60+ cities across China.Our mission is “opening the world through education” – our teachers are core to that mission.
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Professional training + career development.Competitive local salary + performance bonus.Participate in engaging social activities with kids.Leverage EF’s award-winning multi-media tech & curriculum in the classroom.A passport & bachelor’s degree from the US, UK, Canada, Australia, New Zealand, Ireland or South Africa.No teaching experience? No Chinese? No problem! All you need is: Travel for fun: explore places in China & Asia.Expand your network: form multicultural & multinational friendships.