Plug sockets Flashcards
What are the two types of current
alternating and direct current
which current supplies the mains electricity
alternating current
what voltage is the mains electricity to our house
230 Volts
what is the frequency of the AC to our homes
50Hz
What are the 3 wires in sockets
Earth
Neutral
Live
What colour is each wire in sockets
earth - striped yellow and green
neutral - blue
live - brown
what is the function of an earth pin
to earth the current so we don’t get an electric shock
what feature is an extra safety precaution in sockets
the earth pin is longer then the live and neutral so it is always grounded first
what sacrificial wire is added to the socket for safety
a fuse, if current is too high it melts and breaks the circuit
what is the function of the live wire
to bring current into house and supply energy
what is the function of the neutral wire
to finish the circuit
what happens if live wire and earth are connected
a shock or a fire are likely
