<div dir="ltr"><br><div>I've seen the grounding clamp method a few times:</div><div><br></div><div><img src="cid:ii_14f1ee9c371e4bc4" alt="Inline image 1" width="562" height="465"><br></div><div><br></div><div>If the clamp is outdoor rated (unlike this one) then I think its an acceptable method.</div><div><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><br><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><br><div><br></div><div><div><p class="MsoNormal"><span style="color:rgb(56,118,29)">For a brighter energy future,<br>
<br><br>Andrew Truitt <br>
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</div><div><p class="MsoNormal"><span style="color:rgb(56,118,29)">Principal<br>Truitt Renewable Energy </span><span style="color:rgb(56,118,29)">Consulting, LLC</span></p></div><div><p class="MsoNormal"><span style="color:rgb(56,118,29)"><a href="tel:%28202%29%20486-7507" value="+12024867507" target="_blank">(202) 486-7507</a></span></p>
<p class="MsoNormal"><a href="https://www.linkedin.com/in/andrewtruitt" target="_blank">LinkedIn Profile</a></p><p class="MsoNormal"><a href="http://truittreconsulting.weebly.com/" target="_blank">Company Website<span><span></span></span></a></p>
<p class="MsoNormal"><span style="color:rgb(56,118,29)"><span>NABCEP</span> Certified PV Installation Professional ID: 032407-66</span></p><p class="MsoNormal"><span style="color:rgb(56,118,29)">Colorado Journeyman Electrician License No.: 600132</span><br>
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</div></div></div></div></div></div></div></div><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div><p><span style="color:rgb(20,125,186)"></span><span style="color:rgb(20,125,186)"><img src="cid:image001.jpg@01CD17CF.85626660" alt="24 copy.jpg" border="0" height="133" width="200"></span><br>
<span style="color:rgb(20,125,186)"><br></span>"Don't get me wrong: I love nuclear energy! It's just that I prefer fusion to fission. And it just so happens that there's an enormous fusion reactor safely banked a few million miles from us. It delivers more than we could ever use in just about 8 minutes. And it's wireless!"<br>
<br>~William McDonough</p><div><div><br></div></div></div>
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<br></div><div><br></div></div><div class="gmail_extra"><br><div class="gmail_quote">On Tue, Aug 11, 2015 at 4:19 PM, August Goers <span dir="ltr"><<a href="mailto:august@luminalt.com" target="_blank">august@luminalt.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div lang="EN-US" link="blue" vlink="purple"><div><p class="MsoNormal">Hi Wrenches,</p><p class="MsoNormal"> </p><p class="MsoNormal">I have another best practices questions: what are you doing to run your PV wire between arrays on a rooftops? This question has come up on this list in the past but I’m still on the hunt for a robust and faster lower cost method. We mostly install outdoor boxes on each sub array and then run EMT between these boxes. We use strain reliefs to enter the boxes and then either keep PV wire or transition to THWN-2 in the EMT depending on the layout. This method takes time and the outdoor boxes aren’t cheap. Alternatively, we can run open-ended EMT with ground bushings on the ends to bond the conduit. Since ground bushings are designed to be used in boxes we switch out the aluminum lug with a tin-coated outdoor rated lug and stainless hardware. This technically violates the listing but at least the materials hold up. The EMT needs to be carefully bent down at the ends so rain doesn’t enter. Lastly, we sometimes run our PV wires along strut or angle aluminum (this is the fastest method) which also needs to be bonded with a lay-in lug. </p><p class="MsoNormal"> </p><p class="MsoNormal">Does anyone have other methods?</p><p class="MsoNormal"> </p><p class="MsoNormal">Best,</p><p class="MsoNormal"> </p><p class="MsoNormal">August</p><p class="MsoNormal">Luminalt</p></div></div>
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