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19 2024-08

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　　The working principle of fuses

　　A fuse is an electrical safety device used to protect circuits from damage caused by overcurrent. Its working principle is based on the accumulation and release of thermal energy. When current passes through a fuse, heat is generated due to the resistance of the fuse material. If the current exceeds the predetermined threshold, the heat generated will cause the temperature of the fuse to rise rapidly, ultimately leading to the fuse melting and cutting off the circuit.

　　The core part of a fuse is a thin wire or sheet made of silver copper alloy with high resistivity and low melting point. This design ensures that the fuse can conduct electricity normally under normal current conditions; In the case of excessive current, the fuse can quickly melt, protecting other components in the circuit from damage.

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