Re: Mains plug restoration
Backwards compatible maybe, but it must have added to the fabrication cost, and it also thins down the brass in the pin over the insulated length. This must make it more fragile. In principle it will make it a bit more resistive too, and therefore more prone to heating, but I suspect that that's negligible compared with other, thinner, elements in the current path inside the plug and the socket.
However if it saves a lot of injuries and deaths then it's obviously worthwhile. If it saves none then it isn't. I wonder if anyone knows whether it does ?
Cheers,
GJ
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