Tag: Electricity

  • UK Electrical Plug Protections

    UK Electrical Plug Protections

    British 240v/50Hz electricity can injure people, so electrical plugs are designed so that live electrical pins are never exposed. 1. the pins’ position and orientation are such that the plug can only fit one way in the socket 2. the pins are insulated near the plug body so that electric shock is not possible via…

  • Don’t Leave the Lights On at the Hotel

    Don’t Leave the Lights On at the Hotel

    In China, where electric power has been scarce, hotel rooms are equipped with a room key holder that turns off the power when the key is removed. This ensures no electricity flows to the room while it is vacant. This is now common in other countries too.