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<div class=Section1>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>EPV Solar EVP-54</span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>The Isc is 1.49 A</span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>The cut sheet does not list a series fuse
rating for the module.</span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>But it does say something about being able
to use up to 8 in parallel without external protection.</span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>I am in the hunt for installation
instructions.</span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'> </span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>- Peter </span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'> </span></font></p>
<div>
<p class=MsoNormal><font size=3 color=navy face="Times New Roman"><span
style='font-size:12.0pt;color:navy'> </span></font></p>
<br clear=ALL>
<p><font size=2 color=navy face=Arial><span style='font-size:10.0pt'> </span></font></p>
<p class=MsoNormal><img width=67 height=80
src="cid:image003.gif@01CA0A16.B957FCB0" align=left hspace=12><font size=1
color=navy><span style='font-size:9.0pt;color:navy'>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
</span></font></p>
<p><font size=2 color=navy face=Arial><span style='font-size:10.0pt'> </span></font></p>
</div>
<div>
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face="Times New Roman"><span style='font-size:12.0pt'>
<hr size=2 width="100%" align=center tabindex=-1>
</span></font></div>
<p class=MsoNormal><b><font size=2 face=Tahoma><span style='font-size:10.0pt;
font-family:Tahoma;font-weight:bold'>From:</span></font></b><font size=2
face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'>
re-wrenches-bounces@lists.re-wrenches.org
[mailto:re-wrenches-bounces@lists.re-wrenches.org] <b><span style='font-weight:
bold'>On Behalf Of </span></b>Kirpal Khalsa<br>
<b><span style='font-weight:bold'>Sent:</span></b> Tuesday, July 21, 2009 3:11
PM<br>
<b><span style='font-weight:bold'>To:</span></b> RE-wrenches<br>
<b><span style='font-weight:bold'>Subject:</span></b> Re: [RE-wrenches] String
Combiners for a-Si modules</span></font></p>
</div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> </span></font></p>
<p class=MsoNormal style='margin-bottom:12.0pt'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'>Peter...depending on the
series fuse rating you might be able to get away with more strings in parallel
before series fusing is required........what panels are they and what is the
series fuse rating of the modules?<br>
Fronius has a white paper explaining when series fusing is required and when
you can get by without.......it all relates to series fuse rating and
Isc......the higher the series fuse rating and the lower the Isc the more
strings you can parallel with out adding series fusing........<br>
-- <br>
Sunny Regards,<br>
Kirpal Khalsa<br>
NABCEP Certified Solar PV Installer<br>
Renewable Energy Systems<br>
<a href="http://www.oregonsolarworks.com">www.oregonsolarworks.com</a><br>
541-218-0201 m<br>
541-592-3958 o</span></font></p>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>On Tue, Jul 21, 2009 at 2:44 PM, Peter Parrish <<a
href="mailto:peter.parrish@calsolareng.com">peter.parrish@calsolareng.com</a>>
wrote:</span></font></p>
<p class=MsoNormal style='margin-bottom:12.0pt'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'>We are doing an
engineering design for a large scale PV ground mount system<br>
based on a-Si modules. Since the Isc of the modules is 1.5 A, instead of 7-8<br>
A of typical c-Si modules, are there special low-current combiners out<br>
there? Does each string need an overcurrent protection device? Any help with<br>
a-Si based system design would be greatly appreciated.<br>
<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>
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