Insulation - by covering the cables, sockets, metal conductors with plastic
- Double insulation -
Earthing - A 3rd wire, through which no electricty flows, is connected to the metall casing and to a metal plate buride underground. If either of the first two wires become lose and touch the metal case, the electricity is led to the underground metal plate avoiding anyone from getting electrocuted.
- Fuses - these protect wires. When wire overheat, fuses shut them down in order to prevent an accident.
- 3 amp (for up to 700 watts) and 13 amp (for over 700 watts)
Circuit breakers - fuses that can be reset. They detect when the earth wire is used.