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1 Jan 1883 Jahr - Edison patents a three-wire distribution system.

Beschreibung:

It allowed two 110V conductors to connect to a neutral one to make 220V.

Zugefügt zum Band der Zeit:

Events Leading to 120V Decision in the US

11 Okt 2018

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Datum:

1 Jan 1883 Jahr

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~ 142 years ago

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