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In electronics and
electrical engineering a fuse (from the Latin "fusus" meaning to
melt) is a type of sacrificial overcurrent protection device. Its essential
component is a metal wire or strip that melts when too much current flows,
which interrupts the circuit in which it is connected. Short circuit, overload or device
failure is often the reason for excessive current.
A fuse interrupts
excessive current (blows) so that further damage by overheating or fire is
prevented. Wiring regulations often define a maximum fuse current rating for
particular circuits. Overcurrent protection devices are essential in electrical
systems to limit threats to human life and property damage. Fuses are selected
to allow passage of normal current and of excessive current only for short periods.
A fuse was patented by Thomas Edison in 1890 [1] as part of his successful electric distribution system.
A fuse was patented by Thomas Edison in 1890 [1] as part of his successful electric distribution system.
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