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F-GLQ fuse box
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Fuse is based on the current exceeds the specified value for a certain period of time, with its own heat to melt the melt, so that the circuit is broken by the principle of a current protector. Fuse is widely used in low-voltage distribution systems and control systems and electrical equipment, as a short-circuit and over-current protection, is one of the most widely used protection devices.
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Fuse is based on the current exceeds the specified value for a certain period of time, with its own heat to melt the melt, so that the circuit is broken by the principle of a current protector. Fuse is widely used in low-voltage distribution systems and control systems and electrical equipment, as a short-circuit and over-current protection, is one of the most widely used protection devices.
An electrical appliance that uses a metal conductor as a melt to break a circuit. Series in the circuit, when the overload or short-circuit current through the melt, the melt itself will heat and fuse, so as to protect the power system, various electrical equipment and household appliances. With anti-delay characteristics, when the overload current is small, the fusing time is long; when the overload current is large, the fusing time is short. Therefore, in a certain overload current range to the current return to normal, the fuse will not blow, can continue to use. The fuse is mainly composed of three parts: the melt, the shell and the support, in which the melt is the key element to control the fusing characteristics.
Fuse in low-voltage distribution system is a kind of electrical safety protection, fuse is 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, to prevent the spread of accidents.
The fuse is composed of an insulating base (or support), a contact, and a melt. The melt is the main working part of the fuse. The melt is equivalent to a special wire connected 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, thereby cutting off the circuit. The melt is often made into filamentous, grid-like or flaky. The melt material has the characteristics of low relative melting point, stable characteristics and easy to fuse. Generally used lead-tin alloy, silver-plated copper, zinc, silver and other metals.
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