company news about How do fuses protect？

        When the fuse is blown due to short circuit current, the following changes occur inside the fuse:

a. The instantaneous high current generated by short circuit will heat the fuse melt

b. The melt temperature is continuously heated until the melting point is reached

c. The generated arc will produce high temperature and burn off the melt

d. Melt may be vaporized at high temperature and expand above its original size

e. The energy generated by high-voltage arc may melt the filling sand

f. Possible continuous high temperature will cause the filling sand to stick together and form a vitreous body

        Due to the good sealing of the fuse body, the energy released during short circuit will be limited in the fuse body, which will not affect other components in the circuit, and protect other components from high temperature, high voltage and electric arc.

        Suppose that if the fuse fails, what happens?

        The fuse contains complex engineering design inside to ensure safe fusing under specific conditions. Fuses usually deal with extremely high overload current to protect the circuit of the system or equipment from damage caused by such overload current. Once the fuse fails, it may cause disastrous consequences, and may explode, which may cause danger to equipment or nearby personnel. Improper use of fuse is the main reason for failure of fuse to fuse normally in the fault circuit. A variety of factors should be considered when selecting fuses to ensure that the correct fuse is used. All circuit conditions must be understood to ensure that the fuse can fuse safely.