[SML] ground history

[Bill Conner]

I don't know but
https://forum.nachi.org/t/gfcis-code-changes-history-chart/11786 seems to
say later than 60's.

On Mon, May 17, 2021 at 8:05 AM Stephen Litterst via Stagecraft <
stagecraft at theatrical.net> wrote:

> Early' 60s, I want to say '63.  It was a year or so before aluminum wire
> was introduced for residential wiring.
>
> I learned this when I bought a house from the era and the inspector was
> pleasantly surprised to find ground wires and copper wiring.
>
>
> Stephen Litterst
> ETCP - Certified Entertainment Electrician
> slitterst at gmail.com
>
>
>
> > On May 15, 2021, at 8:38 PM, Dan Sheehan via Stagecraft <
> stagecraft at theatrical.net> wrote:
> >
> > Anybody know when codes started to require
> > "Edison" outlets be 3-wire including green wire ground,
> > as opposed to the former 2-wire hot&neutral only ?
> > --
> > ...Dan Sheehan
> > Fixer of things that break
> > TD Walpole (MA) Footlighters
> >
> > ____________________________________________________________
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>
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-- 
Bill Conner Fellow of the ASTC
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