<div dir="ltr">Hi again Hugh,<div><br></div><div>Also, in Colorado, homeowners can do any and all work that they want, as long as they can get it passed inspection.  Oftentimes, incentives discourage this because they need to use a licensed contractor to get the incentive.  We have done a significant amount of business from shameful homeowners that have tried wiring stuff up that they bought off of the internet and couldn't get technical support to do code-compliant installation.  We always charge a lot for this type of work.</div>
<div><br></div><div>Thanks</div><div><br></div><div>Thanks</div></div><div class="gmail_extra"><br><br><div class="gmail_quote">On Fri, Mar 7, 2014 at 6:09 AM, Mac Lewis <span dir="ltr"><<a href="mailto:maclewis1@gmail.com" target="_blank">maclewis1@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">Hi Hugh,<div><br></div><div>This varies quite a bit all over the States.  In Colorado, they have a distinction between an electrician and a PV installer.  Electricians can do anything that the PV Installer can do, but not vice versa.  In order to pull a state permit, a pv installer just needs to be listed on the regulatory agencies website, which takes a simple one-page application, and has more to do with business credentials than technical expertise.  The PV installer is supposed to do only DC wiring.  The voltage does not matter because that can mean all the way up to 600 VDC (and beyond) for PV and battery systems above 48V nominal are restricted by the NEC.  </div>

<div><br></div><div>This seems to be the case in all of the jurisdictions that I have worked in.  You don't need any credentials to install the DC side of things.  The DC voltage is not a significant factor in who can wire what.  For the AC side, a master electrician license is required to pull permits that have an AC portion of wiring.</div>

<div><br></div><div>However, often for some financial reason, such as utility incentive or to comply with bid requirements, a NABCEP certified person is required to oversee the DC side of things.</div><div><br></div><div>

Hope this helps,</div><div><br></div><div>Cheers</div></div><div class="gmail_extra"><div><div class="h5"><br><br><div class="gmail_quote">On Thu, Mar 6, 2014 at 6:44 PM, Ray Walters <span dir="ltr"><<a href="mailto:ray@solarray.com" target="_blank">ray@solarray.com</a>></span> wrote:<br>

<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
  
    
  
  <div bgcolor="#FFFFFF" text="#000000">
    <div>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 cols="72">R.Ray Walters
CTO, Solarray, Inc
Nabcep Certified PV Installer, 
Licensed Master Electrician
Solar Design Engineer
<a href="tel:303%20505-8760" value="+13035058760" target="_blank">303 505-8760</a></pre><div><div>
      On 3/6/2014 6:33 PM, Hugh Piggott wrote:<br>
    </div></div></div><div><div>
    <blockquote 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>
            <blockquote type="cite">
              <div style="word-wrap:break-word">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>
                <div>
                  <span style="border-collapse:separate;font-family:Helvetica;font-style:normal;font-variant:normal;font-weight:normal;letter-spacing:normal;line-height:normal;text-align:-webkit-auto;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;font-size:medium"><span style="border-collapse:separate;font-family:Helvetica;font-style:normal;font-variant:normal;font-weight:normal;letter-spacing:normal;line-height:normal;text-align:-webkit-auto;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;font-size:medium">
                      <div style="word-wrap:break-word">
                        <div>Hugh Piggott</div>
                        <div>Scoraig Wind Electric</div>
                        <div>Dundonnell</div>
                        <div>Ross shire</div>
                        <div>IV23 2RE,  UK</div>
                        <div><a href="tel:%2B44%2077%201315%207600" value="+447713157600" target="_blank">+44 77 1315 7600</a></div>
                        <div><a href="mailto:hugh@scoraigwind.co.uk" target="_blank">hugh@scoraigwind.co.uk</a></div>
                        <div><a href="http://www.scoraigwind.co.uk/" target="_blank">www.scoraigwind.co.uk</a></div>
                        <div><br>
                        </div>
                      </div>
                    </span><br>
                  </span><br>
                </div>
                <br>
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<br></blockquote></div><br><br clear="all"><div><br></div></div></div><span class="HOEnZb"><font color="#888888">-- <br><div><br></div><div><font color="#305A78" face="'times new roman', serif"><br></font></div><div>
<br></div>Mac Lewis<br><br><span style="font-family:'Times New Roman';font-size:medium;color:rgb(255,153,0)"><b><font face="Arial, Helvetica, sans-serif" size="3"><p align="left">
<font color="#000000" face="Verdana, Arial, Helvetica, sans-serif"><span style="font-size:small"><span style="font-family:arial;font-weight:normal;color:rgb(48,90,120)"><font face="'times new roman', serif">"Yo solo sé que no sé nada." </font><span style="font-weight:700;color:rgb(104,104,104)"><font face="'times new roman', serif">-Sócrates</font></span></span></span></font></p>

</font></b></span>
</font></span></div>
</blockquote></div><br><br clear="all"><div><br></div>-- <br><div><br></div><div><font color="#305A78" face="'times new roman', serif"><br></font></div><div><br></div>Mac Lewis<br><br><span style="font-family:'Times New Roman';font-size:medium;color:rgb(255,153,0)"><b><font face="Arial, Helvetica, sans-serif" size="3"><p align="left">
<font color="#000000" face="Verdana, Arial, Helvetica, sans-serif"><span style="font-size:small"><span style="font-family:arial;font-weight:normal;color:rgb(48,90,120)"><font face="'times new roman', serif">"Yo solo sé que no sé nada." </font><span style="font-weight:700;color:rgb(104,104,104)"><font face="'times new roman', serif">-Sócrates</font></span></span></span></font></p>
</font></b></span>
</div>