Question

what is role of fuse wire???

Answer 1

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.

Answer 2

Fuse wire plays a very important role in safety of our houses. It acts as when there is a shot circuit it wires melt and breaks the circuit which secure the house from shot circuit. Now day miniature circuit breaker is also used in place of fuse wire