An Introduction To Electrical Fuse
A fuse is a single phase device that is employed in almost every electrical circuit for protecting them against overload conditions. It is basically the weakest point or link in a circuit that burns out before any other expensive electrical appliance. Thus, it acts as a safety device that checks for circuit overloading and overheating of wires.
Fuse prevents electrical circuit damage and if not possible to totally prevent , it minimizes the level of damage by limiting it to lowest level that is possible.
A fusible link is connected between the fuse terminals, so that when the electrical current flowing through the fuse exceeds a predetermined limit, the link melts and open the circuit through the fuse to prevent electrical component damage. The blown off fuse link is then required to be replaced by a new one since fixing the old one is not possible.
Replacing a fuse is a pretty easy home maintenance task but you need to be very careful because electricity can be dangerous. Unplug all the devices that are connected to the power supply prior to fuse replacement. In addition to this, use a correct rating fuse every time you replace it.
Accomplish the task with proper safety measures. Wearing a good quality insulated gloves would be safe enough. Use proper tools to handle the fuse wires and terminals and avoid touching the metal parts with bare hands.
Condition generally arrives that after the electricity is restored and you have not turned on the devices, but still the fuse blows off. Then there is a defect in your home wiring system or your appliance connections are wrong. And hence, you need to hire a professional for this job.
Fuses protect electrical devices, components and circuits from over currents and short circuits. In addition to this, high reliability is one of the major advantage of using the fuse for over current protection. These are capable of limiting the overloads to only single circuit thus minimizing the danger of fire. Other benefits include circuit breaking and relatively low cost.
Fuses are typically used in the design monolithic integrated circuits and in particular in memory devices as elements for altering the configuration of the circuitry contained therein. Besides, fuses have become an inseparable part of household equipments. Also, these are applicable in automotive vehicles such as motor cycles, ships, boats.
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