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Message: <blockquote data-quote="laal" data-source="post: 8462015" data-attributes="member: 94459">FuseIn 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.<img src="http://lh4.ggpht.com/_8JZhVVmpICU/S8Ac3zQYORI/AAAAAAAAAJ4/5Qsec-ILxNE/Smt%20fuse.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" />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.</blockquote>

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