company news about What structure is the low-voltage fuse composed of？

         Low-voltage fuse is composed of insulating base (or support part), contact, melt, etc. The melt is the main working part of the fuse. The melt is equivalent to a special wire in series in the circuit. When the circuit is short-circuited or overloaded, the current is too large, and the melt melts due to overheating, thus cutting off the circuit. Melts are often made into filaments, grids or sheets. The melt material has the characteristics of low relative melting point, stable characteristics and easy to fuse. Generally, lead-tin alloy, silver-plated copper sheet, zinc, silver and other metals are used.

        In order to extinguish the arc safely and effectively, the melt is usually installed in the fuse housing and measures are taken to extinguish the arc quickly. Fuses have the advantages of simple structure, convenient use and low price, and are widely used in low-voltage systems. The fuse in the low-voltage distribution system is an electrical appliance that plays a role of safety protection. The fuse is widely used in the protection of the power grid and electrical equipment. When the power grid or electrical equipment has a short circuit fault or overload, it can automatically cut off the circuit to avoid damage to electrical equipment and prevent the spread of accidents.