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<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>Voltage drop
and Vd%<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>We have been
using a Calculated Industries - Electro-Calc Pro for the last 3[?] Code changes.
Web site is <a href="http://www.calculatedindustries.com">www.calculatedindustries.com</a><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>Conduit size,
multiple combinations of wire size, Vd, Vd%, Ground size, HP, you name it &
it calculates it. The calculator has an upgradeable chip for the changes in the
code when that happens. Great investment @ $129??<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>It is all a
few key strokes away.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>We keep one
on the desk, one in the travel case and on each truck.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>. <o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'><o:p> </o:p></span></p>
<div>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif";color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif";color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif";color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif";color:#1F497D'>Dana
Orzel<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif";color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif";color:#1F497D'>Great
Solar Works, Inc<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif";color:#1F497D'>www.solarwork.com<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif";color:#1F497D'>E
- dana@solarwork.com<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif";color:#1F497D'>V
- 970.626.5253<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif";color:#1F497D'>F
- 970.626.4140<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif";color:#1F497D'>C
- 970.209.4076<o:p></o:p></span></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span
lang=EN style='font-family:"Arial","sans-serif";color:#1F497D'>“I'd put
my money on solar energy… I hope we don't have to wait 'til oil and coal
run out before we tackle that.”<o:p></o:p></span></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span
lang=EN style='font-family:"Arial","sans-serif";color:#1F497D'>—Thomas
Edison, in conversation with Henry Ford and Harvey Firestone, March 1931</span><span
style='font-family:"Arial","sans-serif";color:#1F497D'><o:p></o:p></span></p>
</div>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'><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 style='margin-left:.5in'><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>Drake
Chamberlin<br>
<b>Sent:</b> Wednesday, April 22, 2009 8:15 AM<br>
<b>To:</b> dkatz@aeesolar.com; RE-wrenches<br>
<b>Subject:</b> Re: [RE-wrenches] Long MC Cable Mid String<o:p></o:p></span></p>
</div>
</div>
<p class=MsoNormal style='margin-left:.5in'><o:p> </o:p></p>
<p class=MsoNormal style='margin-left:.5in'>I have scratched my head on this
one before, because it seems that two terminals bonded together by a wire are
essentially the same terminal. The theoretical voltage difference on a
terminal is zero. How do we figure a voltage drop on a wire that has near
zero volt potential between the ends of the wire. Can we really use the
voltage of the entire array to figure the drop on an interconnect between two
modules? If so, why can we do this?<br>
<br>
Thanks,<br>
<br>
Drake <br>
<br>
<br>
<br>
At 07:49 PM 4/21/2009, you wrote:<br>
<br>
<o:p></o:p></p>
<p class=MsoNormal style='margin-left:.5in'>David,<br>
There will be less than a 1 volt drop in 36 feet of 10 AWG at the 11 amps you
get from the Evergreen modules. I don't think anyone will notice.<br>
David<br>
<br>
David Katz<br>
<br>
<br>
David Palumbo wrote: <br>
<br>
<o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:0in;margin-right:0in;margin-bottom:
12.0pt;margin-left:.5in'>Does the following series string wiring cause a
problem? With (18) Evergreen ES-A 205’s (low voltage modules
18.4Vmp) in series feeding a grid tie inverter with a long series connector in
the middle of the string. (2) Top Of Pole 9 module mounts with the series
connection from module #8 on the first pole to module #9 on the second pole.
This MC cable connection would be, about, 36 feet in length to go 10’
down the pole below grade 18” for 13’ and back up the second pole
10’ (in conduit all the way) .<br>
<br>
Will this extra long series wire cause problems?<br>
<br>
I could use other modules of course but that would raise the cost per watt by
70 cents.<br>
<br>
Dave<br>
<br>
<i>David Palumbo, President<br>
Independent Power LLC<br>
462 Solar Way Drive<br>
Hyde Park, VT 05655<br>
</i>NABCEP Certified<br>
<i><a href="http://www.independentpowerllc.com">www.independentpowerllc.com</a>
<br>
</i> <o:p></o:p></p>
<pre style='margin-left:.5in'><o:p> </o:p></pre><pre style='margin-left:
.5in'><o:p> </o:p></pre><pre style='margin-left:.5in'><o:p> </o:p></pre><pre
style='margin-left:.5in'><o:p> </o:p></pre><pre style='margin-left:.5in'> <o:p></o:p></pre>
<p class=MsoNormal style='margin-left:.5in'>_______________________________________________<br>
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<p style='margin-left:.5in'>Drake Chamberlin<br>
Athens Electric<br>
OH License 44810<br>
CO License 3773<br>
740-448-7328<br>
740-856-9648 <o:p></o:p></p>
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