Characteristic of fuse

As we know that a fuse is to carry the normal current without overheating but when the current exceeds its normal value, it rapidly heats up to a melting point and disconnects the circuits protected by it. In order that it may perform this function satisfactorily. The fuse element should have the following characteristic.

Characteristics of fuse element:

  • It is a low melting point.
  • High conductivity for silver and copper.
  • Free from deterioration due to oxidation.
  • Low cost for lead, tin, and copper.
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