5.3 Fuses Flashcards
1
Q
What is a fuse?
A
Thin wire that heats up and melts if too much current passes through it. Stop appliance working so wont catch fire ( if faulty)
2
Q
What is a circuit breaker?
A
An electromagnetic switch that opens and cuts the current off if too much current passes through.
3
Q
What is is a residual current circuit breaker ? (RCCD)
A
Cuts off the current in the live wire when it is different in the neutral wire.
