Thread: Internal wiring of USA v UK mains plug
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Geoffrey S. Mendelson Geoffrey S. Mendelson is offline
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Default Internal wiring of USA v UK mains plug
wrote:
Round pin systems did not consistently have good contact arrangement,
leading to frequent bad connections between plug & socket, producing
the same type of damage as occurs with unswitched sockets.

Flat plugs came about because of Thomas Edison. He hated Tesla and
refused to use anything but direct current in his electrical systems.
His electrical service company, which supplied New York City,
started out as DC and the large spring loaded plugs were needed.

The originaly were made of two leaf springs, probably brass.

Geoff.

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