Definition and working principle of fuse

- Feb 02, 2018 -

Fuse refers to when the current exceeds the specified value, the heat generated by itself to fuse the melt, disconnect the circuit of an electrical appliance. Fuse is based on the current over the specified value for a period of time, with its own heat generated to melt the melt, so that the circuit disconnected; A current protector made of this principle. Fuses are widely used in high and low voltage distribution systems and control systems as well as in electrical equipment, as short circuit and overcurrent protector, is one of the most widely used protection devices.

Principle: The use of metal conductor as a melt in the circuit, when the overload or short-circuit current through the melt, because of its own heat and fuse, thus breaking the circuit of a kind of electrical appliances. The fuse is simple in structure and easy to use, and is widely used as protection device in electric power system, various electrical equipment and household appliances.


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