The narrator asserts that the plug fully meets Britain's exacting safety standards. If this is the case, and the wear and tear of folding and unfolding it doesn't cause it to explode in flames or electrocute the user, it is a neat piece of design.
(Britain's rather conservative specifications for plugs and sockets seem to have something to do with the fact that, in a fit of post-war thrift, British houses were wired for electricity using a single ring of copper cable, rather than a length for each socket (which would be safer and more expensive), which is the case with the rest of the world. I'm not an electrical engineer, though I wonder whether (a) adopting the European plug standards (you know, the slender round-pinned ones they use on the continent) would have been more hazardous with ring mains, or whether there was somewhat of an ideological nativism and/or imperial exceptionalism in Britain's decision to roll its own rather than surrender their wall outlets to Johnny Foreigner.)
Anyway, if this idea works and ends up being manufactured, I'd gladly buy a few.
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