If the fuse has only blown once it may mean that the fuse was faulty or the connection was not good causing a higher than normal resistance. At least it blew before something else did. How many times does it seem that you have only just replaced a light bulb when you need to replace it again. I know a fuse is not the same as a light bulb but, like any manufactured item, even one so simple, there must be a small percentage that are sub standard.

Trying to track the cause of failure of a fuse that has only blown once would be almost impossible.

If you do not have any more problems with this fuse I would stop worrying about it. If it blows again that is another story. In any case carrying a small selection of replacement fuses is always a good idea.

Peter

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