Wondering Why?

Why Do Fuses Blow?

Why Do Fuses Blow?

A fuse is a metal wire or strip that melts when there is an overload of current flowing and interrupts circuit in which it is connected. It is a safety device that is made up of aluminum, copper or nickel. It interrupts excessive current in order to avoid further damage by overheating or fire.

Fuses blow or opens the circuit if it is overloaded in order to protect the wires from breaking down and burning. There is overloading if a circuit is beyond the preset amount of amps. In order to solve the problem the electrical load should be lightened by removing things connected to the circuit until the fuse holds.

Power line transmission problems and power surges from lightning are the leading causes why fuses blow. The abnormal voltage and current flows almost always create damage to appliances like the TV. If an internal fuse blows it is almost always associated with a problem in one’s television.
A fuse is designed to blow if something else is wrong especially in a television or another home appliance. It is, by the way, its very purpose. Nevertheless, if a fuse is a blown in any appliance you are expected to fix it.

Fixing the fuse, however, will not actually solve any electrical problem. A blown fuse is just the symptom of an underlying problem. It should be addressed and resolved and the appliance which caused the damage should be thoroughly checked.

The fuse was patented by Thomas Edison in the year 1890 and its main purpose is opening a circuit to stabilize current flow. When a circuit is opened at its highest condition, electronic components can be saved from overheating. It is one electrical device which is not only beneficial to our lives but also a very smart invention.


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