Wiring fire, advice sought!

Thanks for the info and link,unfortunately i'm in England and need to fix the car quickly for a major trip.
I thought the idea of a fusible link was that it wont break/blow if there is a temporarey electrical spike. I'm concerned that if my fuse blows i'll be left without power in the middle of the road/highway!
Does the maxi-fuse have a similar delay function as the old fusible link?
thanks, Tim