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<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Bill,<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'>I checked with Delta and they say the LA’s are designed to
be mounted inside, or, outside the box. On their product sheets that came with
the arrestors in years past they clearly showed the LA’s inside the load
center. In fact that is the way they are still showing them used on their sales
web site <a href="http://www.deltasurgeprotectors.com/home.cfm">http://www.deltasurgeprotectors.com/home.cfm</a>
<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Maybe the lawyers want them shown in the box for liability concerns.
The tech person I spoke with says they recommend putting them in the box
if they are around combustible material such as insulation. Could that also be
dry grass around a ground mount?<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>They did say that on LA’s manufactured 2009 and
later that the jar no longer cracks, they have a “VIP plug” on the
bottom of the jar that pops out when the LA is done. They did say that on big,
close by strikes, all bets are off on just the VIP plug popping out. Expect
more damage in that case.<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'>BTW, great article in Solar Pro on PV array voltage issues.<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'>Thanks,<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Dave<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>
<div>
<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>Bill
Brooks<br>
<b>Sent:</b> Thursday, September 02, 2010 12:46 PM<br>
<b>To:</b> 'RE-wrenches'<br>
<b>Subject:</b> Re: [RE-wrenches] Delta LA's<o:p></o:p></span></p>
</div>
</div>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>David,<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'>They are supposed to be mounted outside boxes so that you can
clearly see when they have been used up. Sand makes glass that expands and
breaks the plastic. They used to be porcelain for the very same reason. If you
are concerned about unqualified people coming in contact with conductors, put a
guard around it.<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'>Bill.<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>
<div>
<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>Dave
Palumbo<br>
<b>Sent:</b> Wednesday, September 01, 2010 5:32 PM<br>
<b>To:</b> 'RE-wrenches'<br>
<b>Subject:</b> Re: [RE-wrenches] Delta LA's<o:p></o:p></span></p>
</div>
</div>
<p class=MsoNormal><o:p> </o:p></p>
<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>
<div>
<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<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><o:p></o:p></p>
</div>
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<p class=MsoNormal style='margin-bottom:12.0pt'><br>
<br clear=all>
<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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