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    <div class="moz-cite-prefix">New Mexico used to have a low voltage
      electrician.  It was for communications guys, and was limited to
      under 50 v.  <br>
      Actually pretty useless, since most systems had inverters.  Also
      it wasn't that much harder to just get a regular electrical
      license.<br>
      Also, some considered even 24 v systems to be over 50 v, since the
      Voc in cold weather could exceed 50v.<br>
      Generally, for maintenance/ battery replacement on off grid stuff,
      no one worries about it.  If you are doing new construction,
      pulling permits, then you need to have much more than just the
      license.<br>
      Insurance, bonding, worker's comp, etc. are also all required.<br>
      <pre class="moz-signature" cols="72">R.Ray Walters
CTO, Solarray, Inc
Nabcep Certified PV Installer, 
Licensed Master Electrician
Solar Design Engineer
303 505-8760</pre>
      On 3/6/2014 6:33 PM, Hugh Piggott wrote:<br>
    </div>
    <blockquote
      cite="mid:9FAA3334-1DDE-4FD0-892A-EDBE4E9B7774@scoraigwind.co.uk"
      type="cite">Me again,
      <div><br>
      </div>
      <div>Maybe that was confusing.  Just to clarify this question, I
        will break it down as follows:
        <div>
          <ul>
            <li>What qualifications do you need to legally work on
              electrical systems in your country/state?</li>
            <li><b>Is the circuit voltage a factor</b>, and if there is
              a different rule for ELV systems, then how is ELV defined?</li>
            <li>What other factors are applicable such as status
              (homeowner, installer, paid/unpaid) and location (inside
              home, wet location, etc)?</li>
          </ul>
        </div>
        <div>Thanks for any observations.</div>
        <div><br>
        </div>
        <div>Hugh</div>
        <div><br>
          <div>
            <div>On 5 Mar 2014, at 08:34, Hugh Piggott wrote:</div>
            <br class="Apple-interchange-newline">
            <blockquote type="cite">
              <div style="word-wrap: break-word; -webkit-nbsp-mode:
                space; -webkit-line-break: after-white-space; ">hi All,
                <div><br>
                </div>
                <div>I am trying to find some general statements that
                  can be made about the global legal position on who may
                  or may not work on/install "extra low voltage" (ELV)
                  systems or equipment such as batteries, PV, turbines
                  etc.</div>
                <div><br>
                </div>
                <div>I understand that in the USA this is a matter for
                  state legislation rather than federal.  I'd be
                  interested to learn what rules people follow regarding
                  such work and who can do it, for themselves or for
                  money, in what environment (inside or outside the home
                  for example, dry or wet etc) and at what voltages?
                   The definition of ELV seems to change depending on
                  various factors, one of which is whether it is
                  "separated" (floating and well insulated) or not.</div>
                <div><br>
                </div>
                <div>Many of us work with battery systems, and not
                  everyone is a certified electrician.  I'd love to know
                  some ground rules.</div>
                <div><br>
                </div>
                <div>thanks!</div>
                <div><br>
                </div>
                <div>Hugh</div>
                <br>
                <br>
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                        <div>Hugh Piggott</div>
                        <div>Scoraig Wind Electric</div>
                        <div>Dundonnell</div>
                        <div>Ross shire</div>
                        <div>IV23 2RE,  UK</div>
                        <div>+44 77 1315 7600</div>
                        <div><a moz-do-not-send="true"
                            href="mailto:hugh@scoraigwind.co.uk">hugh@scoraigwind.co.uk</a></div>
                        <div><a moz-do-not-send="true"
                            href="http://www.scoraigwind.co.uk/">www.scoraigwind.co.uk</a></div>
                        <div><br>
                        </div>
                      </div>
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                  </span><br class="Apple-interchange-newline">
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