Draw an appropriate schematic diagram showing common domestic circuits and discuss the importance of fuse. Why is it that a burnt out fuse should be replaced by another fuse of identical rating?
Important of Fuse:
• Fuse is an important safety device in household wiring and in electrical appliance.
• Fuse prevents any damage to the circuit and appliance which may happen due to overload.
• Fuse prevents accidental fire which may happen because of short circuit.
Fuse of a particular rating is used with a particular appliance. A fuse with lower rating would result in lot of inconvenience because of frequent need of changing the fuse. A fuse with higher rating would not serve the purpose because it will not melt even if the current exceeds the limit of the device. Hence, a burnt out fuse should be replaced by another fuse of identical rating.