The following graph shows the time/current characteristics of six HRC fuses
(i) Why is the graph referred to as an inverse time current characteristic graph?
(ii) Which fuse would trip when a current of 27A flows with a pre-arcing time of 1.0 second?
(iii) What is the gG utilisation category (fusing factor) of a 6A rated fuse?
(iv)What value of current will operate the 6A fuse?