Fuse
A fuse breaks a
circuit when the flow of current becomes too high. This large
amount of current (excessive current) could be caused by a fault
in the electrical appliance. When the current gets too high in the
circuit, the wire in the fuse will melt due to the heat energy
produced, I2Rt. (The larger the current, the greater
the amount of heat energy produced.) When the wire melts, the fuse
is said to be broken and the circuit is open. This prevents
excessive current from flowing into the appliance and damaging it.
Common fuses are rated 3A, 5A and 13A. The chosen fuse should be the one rated slightly higher than what the appliance or device needs.
Common fuses are rated 3A, 5A and 13A. The chosen fuse should be the one rated slightly higher than what the appliance or device needs.
| Appliance works at | Fuse to use |
| 3A | 5A |
| 10A | 13A |
