A fuse is an electrical component installed in a circuit to ensure the safe operation of the circuit. When the circuit is faulty or abnormal, it may burn the circuit or even cause a fire. Some fuses have a fuse indication device, its role is when the fuse action (fuse) after its own appearance changes, easy to be found by maintenance personnel. So what are the parts of a fuse?
1, electrode
There are usually two, it is an important part of the melt and the circuit connection, it needs to have good electrical conductivity, should not produce obvious installation contact resistance.
2, melt
It is the core of the fuse, fuses play a role in cutting off the current, the same type, the same specification of fuse melt, the material should be the same, the geometric size should be the same, the resistance value as small as possible and should be consistent, it is important that the fuse characteristics should be consistent.
3, support
Fuse melt is generally thin and soft, the role of the bracket is to fix the melt and make the three parts a rigid whole for easy installation and use, it needs to have good mechanical strength, insulation, heat resistance and flame retardant, in use should not produce fracture, deformation, combustion and short circuit and other phenomena.