Mains Electricity Flashcards
(5 cards)
1
Q
What is a fuse?
A
They stop the flow of current by melting if the current is too high
2
Q
What is a circuit breaker?
A
The break the circuit if the current is too high
3
Q
What is earthing?
A
It is a path for fault currents to flow to the ground instead of through you
4
Q
What is insulation?
A
A material that reduces the flow of energy usually heat and electricity from one place to another
5
Q
What is double insulation?
A
A feature in electrical appliances where two layers are used to protect the user from electric shock
