How does use of a fuse wire protect electrical appliances?

As we know electrical appliances work on current and the current which passes through the conductor generates heat accordingly. Electrical appliances should be handled carefully to avoid any damage to it and the wiring in the house. The heat generated in a conductor is directly proportional to the square of the current which flows through it. Once I was also curious about the working process of fuse wire. So I examined the circuit and then got to know about how it really works. I will tell you with the following points about how does use of a fuse wire protect electrical appliances.

How does fuse wire protect electrical appliances?

The sudden increase in the current flow can damage the electrical appliances badly. That’s why the fuse wire is used to protect the damage to the appliances. Heat is produced within a wire or other conductor when current runs through it. The heat produced by the wire is proportional to the square of the current passing through it. As a result, as the current in the circuit rises, more heat is generated in the appliances, potentially causing damage to the appliances' circuits.

The ideal way to solve this issue is to turn the circuit off when the current surpasses a specified threshold. This way you can get some idea on how does a fuse wire protect electrical appliances.

Process on how does use of fuse wire protect electrical appliances:

1) The melting point of fuse wires is way too lower than that of other components in the circuit. 

2) The fuse wires are connected to the other components in series in the circuit respectively.

3) When the circuit current increases, the heat produced by the current melts the fuse wire because of excess flow of current.

4) This process breaks the circuit and stops the current flowing in the circuit.

5) And then current is interrupted from the circuit before it causes any damage to the equipment.

This guides your query on how does use of a fuse wire protect electrical appliances.