A fuse, such as a fuse in a fuse panel, blows when the current flowing through it exceeds its rated capacity for a certain duration. This excess current causes the metal wire or element inside the fuse to heat up and melt, thereby interrupting the electrical circuit and preventing further flow of electricity. The blowing of the fuse serves as a safety mechanism to protect electrical devices and prevent potential hazards like overheating or fires. Fuses can blow due to overload, short circuits, or faulty equipment.
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