Electrical circuits

To protect electrical circuits, blade-type fuses are used, the color of which corresponds to the protection current of the fuse. The health of the fuse is determined by the presence of a wire conductor connecting the contacts of the fuse. To replace a failed fuse, first turn off the corresponding electrical circuit, remove the fuse from the socket with tweezers. If a newly installed fuse fails instantly when energized, check the circuit being protected. If the fuse protects several circuits, then they must be connected in turn in order to determine the faulty circuit by blowing the fuse.