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<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>I am concerned with Delta LA 600VDC cans being mounted exterior
from J-boxes (or disconnect switches) on ground mounts.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>I remember hearing from an old hand that these devices can
fail in a manner that could possibly expose the wiring to human hands. The
wires would have high voltage DC potential. Not something we need in our
industry.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Am I worrying about something that can’t happen? Or should
these be in PVC boxes?<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>David Palumbo <o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Independent Power LLC<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Offices in Lamoille and the Champlain Valley, Vermont<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>802.888.7194 <o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>www.independentpowerllc.com <o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:9.0pt;font-family:"Helvetica","sans-serif";
color:blue'>NABCEP Certified Solar PV Installer™</span><span
style='font-size:9.0pt;font-family:"Helvetica","sans-serif";color:black'><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Vermont RE Incentive Program Partner<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
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<div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'>
<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>
re-wrenches-bounces@lists.re-wrenches.org
[mailto:re-wrenches-bounces@lists.re-wrenches.org] <b>On Behalf Of </b>North
Texas Renewable Energy Inc<br>
<b>Sent:</b> Tuesday, August 31, 2010 10:07 PM<br>
<b>To:</b> RE-wrenches<br>
<b>Subject:</b> Re: [RE-wrenches] Testing LSAs<o:p></o:p></span></p>
</div>
</div>
<p class=MsoNormal><o:p> </o:p></p>
<div>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>For the first
time since 2004 we got a residential PV red tag for non-listed surge
supressors. I just took them off and replaced them after we got the green
tag. Of course he also red-tagged the copper ground plate because it was not
thick enough. Go figure....</span><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal> <o:p></o:p></p>
</div>
<div>
<div>
<p class=MsoNormal>Jim Duncan<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>North Texas Renewable Energy<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal> <o:p></o:p></p>
</div>
</div>
<div>
<p class=MsoNormal> <o:p></o:p></p>
</div>
<blockquote style='margin-top:5.0pt;margin-bottom:5.0pt'>
<p class=MsoNormal style='margin-bottom:12.0pt'><span style='font-size:10.0pt;
font-family:"Tahoma","sans-serif"'>-----Original Message-----<br>
<b>From:</b> re-wrenches-bounces@lists.re-wrenches.org
[mailto:re-wrenches-bounces@lists.re-wrenches.org]<b>On Behalf Of </b>Andrew
Truitt<br>
<b>Sent:</b> Tuesday, August 31, 2010 8:09 PM<br>
<b>To:</b> RE-wrenches<br>
<b>Subject:</b> Re: [RE-wrenches] Testing LSAs</span><o:p></o:p></p>
<p class=MsoNormal style='margin-bottom:12.0pt'><br>
<br>
Question: Since the Delta lightning arrestors are not UL Listed, do they
threaten the UL compliance of the PV system as a whole?<br>
<br>
<br>
- Andrew Truitt<br>
Currently of Standard Solar<br>
Free agent in the Denver area as of 10/6/10<br>
<br>
<br>
<o:p></o:p></p>
<div>
<p class=MsoNormal>On Tue, Aug 24, 2010 at 6:02 PM, Peter Parrish <<a
href="mailto:peter.parrish@calsolareng.com">peter.parrish@calsolareng.com</a>>
wrote:<o:p></o:p></p>
<p class=MsoNormal>I would think that an ohmmeter set to the 10 Mega-ohm
setting (or the<br>
highest setting possible), would be the first test. I would like to see<br>
something on the order of 750 k-ohms (3/4 of a mega-ohm).<br>
<br>
But the system should be tested at a higher voltage, than that available<br>
from a DMM. Apply 240 Vac and measure the RMS current. It should be should<br>
be 0.3 mA or less.<br>
<br>
Finally, these puppies really need to be tested at much higher voltages,<br>
perhaps someone knows how to use that megohmmeter to test? What does the<br>
manu recommend, “if suspect, throw it away and buy a new one”?<br>
<br>
- Peter<br>
<br>
Peter T. Parrish, Ph.D., President<br>
California Solar Engineering, Inc.<br>
820 Cynthia Ave., Los Angeles, CA 90065<br>
CA Lic. 854779, NABCEP Cert. 031806-26<br>
<a href="mailto:peter.parrish@calsolareng.com">peter.parrish@calsolareng.com</a><br>
Ph 323-258-8883, Mobile 323-839-6108, Fax 323-258-8885<br>
<br>
<br>
________________________________________<br>
From: <a href="mailto:re-wrenches-bounces@lists.re-wrenches.org">re-wrenches-bounces@lists.re-wrenches.org</a><br>
[mailto:<a href="mailto:re-wrenches-bounces@lists.re-wrenches.org">re-wrenches-bounces@lists.re-wrenches.org</a>]
On Behalf Of Kristopher<br>
Schmid<br>
Sent: Tuesday, August 24, 2010 1:30 PM<br>
To: 'RE-wrenches'<br>
Subject: [RE-wrenches] Testing LSAs<o:p></o:p></p>
<div>
<div>
<p class=MsoNormal style='margin-bottom:12.0pt'><br>
What is the best method for testing the integrity of a DC and/or AC<br>
lightning surge arrestor? Specifically, i use the Delta LA units. I
know<br>
they should be replaced if they look Bar-B-Qued, but otherwise...?<br>
<br>
Thanks,<br>
Kris Schmid<br>
<br>
Legacy Solar<br>
864 Clam Falls Trail<br>
Frederic, WI 54837<br>
715-653-4295<br>
<a href="mailto:solman@legacysolar.com">solman@legacysolar.com</a><br>
<a href="http://www.legacysolar.com" target="_blank">www.legacysolar.com</a><br>
<br>
<o:p></o:p></p>
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<br>
-- <br>
"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<o:p></o:p></p>
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