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1 jan 1883 ano - Edison patents a three-wire distribution system.

Descrição:

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

Adicionado na linha do tempo:

Events Leading to 120V Decision in the US

11 out 2018

0

0

818

Data:

1 jan 1883 ano

Agora

~ 142 years ago

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