In class on 28 August I was asked to show how to select a fuse.
The
problem below shows the selection of a fuse as part of a bigger
problem.
As you'll see when you look at this problem, we break the problem down
into steps:
determine the level of current we want to avoid
apply a margin of comfort to determine the level of current at
which
we'll
normally operate the circuit
choose a fuse to blow somewhere between these two levels