The electrician has replaced a fuse wire of higher specification for a circuit of lower specification. What will be the consequence? What should he have done?
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No, because fuse is made of lead wire which has a very low melting point. A fuse wire melts quickly and breaks when large amount of current passes through the circuit. If the electrician replaces a fuse by a piece of ordinary wire (which has high melting point) it increases the risk of overheating due to flow of excessive current. This may lead to short circuit and fire.
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