give the function of electric fuse? Mention its characteristics?
Answers
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Function:
The function of a fuse is usually to prevent fire - that's the basic protection a fuse offers - between power supply and appliance there may be a few feet or metres of cable - if a short circuit occurs in the appliance, the cable could easily become overheated (due to excess current) and burn or rupture its insulation.
Characteristics:
Fuse Wire Materials. The material used for fuse elements must be of low melting point, low ohmic loss, high conductivity (or low resistivity), low cost and free from detraction. The material used for making fuse element has a low melting point such as tin, lead, or zinc.
Electric fuse is a electrical device by which electricity is transferred. Today (MCB) miniature circuit breaker is available everywhere. If any shock takes place then MCB is switched down automatically.