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Plug vs. Plug — Which Nation's Socket Is Best?
CNETNate writes "Is the American mains socket really so much worse than the Italian design? And does the Italian socket fail at rivaling the sockets in British homes? This feature explores, in a not-at-all-parodic-and-anecdotal fashion, the designs, strengths and weaknesses of Earth's mains adapters. There is only one conclusion, and you're likely not to agree if you live in France. Or Italy. Or in fact most places." (For more plug pics and details, check out Wikipedia's list of the ones in current use.)
Having lived in the US, UK, Malaysia and France, I would concurr that the British plug system is far better. It was properly thought, and universally implemented across the country 50 years ago using an act of parliment on the premise that using anything else was dangerous and therefore potentially negligent. More features have been added since then (including household earth-leakage trip sensing).
I've had problems with a French pin snapping in a socket leaving an exposed live pin for my 3-year-old son to play with (luckily I spotted it in time and managed to cover it).
In the US I almost got used to the risk of shocks off electrical appliances. I also had a lab fire destroy some of my work because somebody had knocked out the cable of the pump supplying the coolant.
In Malaysia where the national standard specifies the british plug type, the biggest issue was that cheap Chinese imports sometimes didn't use it.
When basic safety is involved, I don't think that it's over-engineering. Your comment about extra points of failure doesn't make any sense.