<html>
  <head>
    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
  </head>
  <body>
    <p>That is GFCI, not just  regular 3 wire edison outlet.</p>
    <p>Stuart Wheaton<br>
    </p>
    <div class="moz-cite-prefix">On 5/17/2021 5:30 PM, Bill Conner via
      Stagecraft wrote:<br>
    </div>
    <blockquote type="cite"
cite="mid:CAHtCQ9SnnB9ZG83u8AReUsc2eoN84i1VPbant0BqV_f6m-dokQ@mail.gmail.com">
      <meta http-equiv="content-type" content="text/html; charset=UTF-8">
      <div dir="ltr">I don't know but <a
          href="https://forum.nachi.org/t/gfcis-code-changes-history-chart/11786"
          moz-do-not-send="true">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"
            moz-do-not-send="true">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"
            moz-do-not-send="true">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"
            moz-do-not-send="true">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>
          >
          ____________________________________________________________<br>
          > For list information see <<a
            href="http://stagecraft.theprices.net/" rel="noreferrer"
            target="_blank" moz-do-not-send="true">http://stagecraft.theprices.net/</a>><br>
          > Stagecraft mailing list<br>
          > <a href="mailto:Stagecraft@theatrical.net"
            target="_blank" moz-do-not-send="true">Stagecraft@theatrical.net</a><br>
          > <a
            href="http://theatrical.net/mailman/listinfo/stagecraft_theatrical.net"
            rel="noreferrer" target="_blank" moz-do-not-send="true">http://theatrical.net/mailman/listinfo/stagecraft_theatrical.net</a><br>
          <br>
          <br>
          ____________________________________________________________<br>
          For list information see <<a
            href="http://stagecraft.theprices.net/" rel="noreferrer"
            target="_blank" moz-do-not-send="true">http://stagecraft.theprices.net/</a>><br>
          Stagecraft mailing list<br>
          <a href="mailto:Stagecraft@theatrical.net" target="_blank"
            moz-do-not-send="true">Stagecraft@theatrical.net</a><br>
          <a
            href="http://theatrical.net/mailman/listinfo/stagecraft_theatrical.net"
            rel="noreferrer" target="_blank" moz-do-not-send="true">http://theatrical.net/mailman/listinfo/stagecraft_theatrical.net</a><br>
        </blockquote>
      </div>
      <br clear="all">
      <div><br>
      </div>
      -- <br>
      <div dir="ltr" class="gmail_signature">Bill Conner Fellow of the
        ASTC</div>
      <br>
      <fieldset class="mimeAttachmentHeader"></fieldset>
      <pre class="moz-quote-pre" wrap="">____________________________________________________________
For list information see <a class="moz-txt-link-rfc2396E" href="http://stagecraft.theprices.net/"><http://stagecraft.theprices.net/></a>
Stagecraft mailing list
<a class="moz-txt-link-abbreviated" href="mailto:Stagecraft@theatrical.net">Stagecraft@theatrical.net</a>
<a class="moz-txt-link-freetext" href="http://theatrical.net/mailman/listinfo/stagecraft_theatrical.net">http://theatrical.net/mailman/listinfo/stagecraft_theatrical.net</a>
</pre>
    </blockquote>
  </body>
</html>