Electrical outlet

An electrical outlet or receptacle is a socket that connects an electrical device to an electricity supply. In buildings, electrical outlets are usually installed in walls, although they can also be installed in the floor and other places. Occasionally, they are found in the ceiling for powering devices such as garage door openers or neon signs in storefront windows. Different countries often have different outlet types and voltages. Electrical adapters are used to convert between different types and voltages.

A North American electrical outlet

Other websites

• International power cords technology Archived 2012-01-06 at the Wayback Machine
• Glossary of standards terms
• Electricity Around The World (about plugs, sockets and electrical systems used around the world)
• Change to UK electrical wire colors 2004
• Household electrical safety handbook, Electrical and Mechanical Services Department, Hong Kong Special Administrative Region Government
• IEEE history of Australian power connectors (in pdf format) Archived 2014-08-24 at the Wayback Machine
• South Africa Eskom: Wiring a Plug Archived 2010-11-26 at the Wayback Machine
• Guidance Notes for the Electrical Products (Safety) Regulation (Electrical and Mechanical Services Department, Hong Kong)
• Museum of Plugs and Sockets: pictures including disassembled units