Can we use any conducting wire to make a fuse?
Answers
Answer:
Explanation:
My class of budding electrical engineers were taken to a switchgear test site operated by a local company.
The final demonstration was about the use of High Rupture Current (HRC) fuses.
First a set of three fuses were connected between the three phases of a circuit and the floating star point. A current of several thousand amps was switched on to the fuses, There was a faint ‘pop’, and two of the fuses had blown, with the third still OK as the circuit had been broken when the other two blew.
The fuses were then replaced by 16 gauge tinned copper wire. We students were then herded back behind armour glass before the current was switched on. When it was, there was a huge flash, and a cloud of (presumably copper oxide) smoke. In less than a quarter second, before the circuit breaker opened, the copper wire and the mountings for the wire, had vanished. If the circuit breaker had not been opened (it was on a timer), the arc could have eaten its way back along the cables for a considerable distance.
Answer:
Which property of a conducting wire is utilised in making electric fuse? Soln: The low melting point of the wire is utilized in making electric fuse.
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