Re: Why does laptop PSU have an earth wire?

Andy wrote:

[...]

I have always wondered though why no-one had actually invented a 3 pin
plug with a resettable fuse in it rather than physically having to take
the plug apart to change the fuse inside.

Mostly because of the cost I would imagine. An MCB costs from around a
fiver.

It would be pretty difficult also to package such a device in a way that was
acceptable.

Chris

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