Fuse Use Maintenance

- Feb 02, 2018 -

Low-voltage distribution system fuse is a security protection of an electrical appliance, fuses widely used in power grid protection and electrical equipment protection, when the power grid or electrical equipment short-circuit fault or overload, can automatically cut off the circuit, to avoid damage to electrical equipment, prevent the spread of accidents.

The fuse is provided by an insulating base (or supporting part), contact, melt and other components, melt is the main part of the fuse, melt equivalent to a series of special wires in the circuit, when the circuit occurs short circuit or overload, the current is too large, melt due to overheating and melting, thus cutting off the circuit. The melt is often made of filiform, raster or flaky shape. Melt material has the characteristics of low melting point, stable characteristic and easy fusing. The general use of lead-tin alloy, silver-plated copper, zinc, silver and other metals. In the process of melting and cutting off the circuit will produce arc, in order to safely and effectively extinguish the arc, the general will be installed in the fuse shell body, take measures to quickly extinguish the arc.

The fuse has the advantages of simple structure, convenient use and low price, and is widely used in low-voltage system.

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