<div dir="ltr">Me bad. You're right of course. Found this though: "1951 The first requirement for grounded receptacles in residential construction dates back to 1951 when the NEC (National Electrical Code) required laundry areas to have grounded receptacles." I only have access back to 1968 edition so can't verify. It would not surprise me if a lot of jurisdictions amended the requirement out initially. </div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Mon, May 17, 2021 at 11:21 AM Stuart Wheaton via Stagecraft <<a href="mailto:stagecraft@theatrical.net">stagecraft@theatrical.net</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<div>
<p>That is GFCI, not just regular 3 wire edison outlet.</p>
<p>Stuart Wheaton<br>
</p>
<div>On 5/17/2021 5:30 PM, Bill Conner via
Stagecraft wrote:<br>
</div>
<blockquote type="cite">
<div dir="ltr">I don't know but <a href="https://forum.nachi.org/t/gfcis-code-changes-history-chart/11786" target="_blank">https://forum.nachi.org/t/gfcis-code-changes-history-chart/11786</a>
seems to say later than 60's. </div>
<br>
<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">On Mon, May 17, 2021 at 8:05
AM Stephen Litterst via Stagecraft <<a href="mailto:stagecraft@theatrical.net" target="_blank">stagecraft@theatrical.net</a>>
wrote:<br>
</div>
<blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">Early'
60s, I want to say '63. It was a year or so before aluminum
wire was introduced for residential wiring. <br>
<br>
I learned this when I bought a house from the era and the
inspector was pleasantly surprised to find ground wires and
copper wiring.<br>
<br>
<br>
Stephen Litterst<br>
ETCP - Certified Entertainment Electrician<br>
<a href="mailto:slitterst@gmail.com" target="_blank">slitterst@gmail.com</a><br>
<br>
<br>
<br>
> On May 15, 2021, at 8:38 PM, Dan Sheehan via Stagecraft
<<a href="mailto:stagecraft@theatrical.net" target="_blank">stagecraft@theatrical.net</a>>
wrote:<br>
> <br>
> Anybody know when codes started to require<br>
> "Edison" outlets be 3-wire including green wire ground,<br>
> as opposed to the former 2-wire hot&neutral only ?<br>
> -- <br>
> ...Dan Sheehan<br>
> Fixer of things that break<br>
> TD Walpole (MA) Footlighters<br>
> <br>
>
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<br clear="all">
<div><br>
</div>
-- <br>
<div dir="ltr">Bill Conner Fellow of the
ASTC</div>
<br>
<fieldset></fieldset>
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</blockquote></div><br clear="all"><div><br></div>-- <br><div dir="ltr" class="gmail_signature">Bill Conner Fellow of the ASTC</div>