Fuse fuse all the reasons
In addition, the screw is not tightened when the fuse is installed, or fuse damage can also cause fuse blown.
Fuse blown the essence: the current flows through the fuse heat, so that the fuse heat, if the heat can not be dispersed in time, the fuse continues to heat up to melt melting after the break.
Pulse: When the circuit starts or the power supply is unstable, a momentary current causes the fuse to break
Overload: The current in the circuit exceeds the rated current of the fuse
Short circuit: circuit short circuit caused by excessive current
