Mains Electricity And Plug Socket Flashcards
1
Q
What are the volts and hertz of UK mains power?
A
230V
50Hz
2
Q
What is a live wire?
A
A brown coloured wire that carries the alternating potential difference from the supply.
3
Q
What is the neutral wire?
A
A blue coloured wire that completes the circuit, taking the current back to the source.
4
Q
What is the earth wire?
A
A green and yellow striped wire that stops the appliance becoming live. If there is an electrical fault the earth wire will prevent the current from reaching a person and harming them.
5
Q
What is a fuse?
A
A safety device with a small thin wire. If the current gets too high, the fuse will melt and break the circuit.
