Quote:
Originally Posted by BB_TX
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110 vac was the original voltage level Edison chose for his light bulb and was used as the standard for many years. And that became ingrained as the term used to describe an electrical outlet. But that was raised to 115 vac in the 1930’s and was the standard voltage until it was raised again in 1984 to 120 vac, the current standard. Utilities are required to supply 120 vac +/- 5%. But, although inaccurate, the 110 vac term lives on.
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I never knew that there was a "history" of using 110V-115V-120V. I never really knew why it is often referred to it as 110V.
It appears that accounts vary on when we went to 120V, as Wikipedia lists it as 1967. Who knows.
https://en.wikipedia.org/wiki/Mains_electricity
At any rate, thanks for an insight into history. I learned something today!
