Why do the electrical appliances fuse when we continuously turn the switch off and on?

UM Umairusman asked on 05 February 2020, 19:22
2 answers / 655 views / 6 votes
any electrical appliance that has a inductor load like a fan, a motor etc drays higher current at the beginning. When a load is switched on and off continuously, it increases the current heats and therefore fuse the wire.

There is difference between a steady current and current when switched ON and OFF. Steady current is less than the switch ON current.

Any equipment with inductor load like motor, fan etc draws higher current at start. Even a light bulb, even though it is a resistor, due to its cold start, draws little higher current when switched on.

When a load is switched ON again and again, the increase in current heats the fuse wire moe and more. This heat makes the fusing.

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