Thursday, 21 September 2017

Fuse Part 3

#channel2

[ to read previous parts
Click part 1 & part 2]

#Desirable_Character_of_fuse_element.
   • low melting point
             - because you would like a wire that responds to current flow without heating up too much thus avoiding a fire hazard.
  •   High Conductivity.
  •   Free from deterioration due to oxidation.
  •   Low cost.
Low melting point material comes with high specific resistance and with higher mass.
High melting point material comes with low specific resistance and with low mass.
Oxidation of fuse element(e.g. copper and iron) tends to generate an outer layer which may be strong enough to support the metalic core of fuse element when it is in molten state.
Part1 Part2  Part3 Part4  Part5
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