Circuit Breakers Have Some Advantages Over Fuses

Question 1

What are circuit breakers?

Answer 1

An electrical safety device used in some circuits

Question 2

What do circuit breakers do?

Answer 2

Like fuses, they protect the circuit from damage if too much current flows

Question 3

What do circuit breakers do when they detect a surge in current in a circuit?

Answer 3

They break the circuit by opening a switch

Question 4

How is a circuit breaker reset?

Answer 4

By flicking a switch on the device

Question 5

How are they more convenient than fuses when resetting them?

Answer 5

Circuit breakers - switch

Fuse - melts and has to be replaced

Question 6

What is one common type of circuit breaker?

Answer 6

Is a Residual Current Circuit Breaker (RCCB)

Question 7

What happens if somebody touches the live wire?

Answer 7

A current will flow through them to the earth

Question 8

What does the neutral wire carry less off compared to the live wire?

Answer 8

Current

Question 9

When does the circuit breaker break the circuit it compared to a fuse?

Answer 9

As soon as there is a current surge - much faster than fuses

Question 10

Why can RCCB’s be used for small current charges and not fuses?

Answer 10

RCCB’s even work for small current charges that might not be large enough to melt a fuse