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<p class=MsoNormal><st1:country-region w:st="on"><st1:place w:st="on"><font
size=3 color=black face="Times New Roman"><span style='font-size:12.0pt'>Kent</span></font></st1:place></st1:country-region>,<o:p></o:p></p>
<p class=MsoNormal><font size=3 color=black face="Times New Roman"><span
style='font-size:12.0pt'>No, this hasn’t happened to me yet.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 color=black face="Times New Roman"><span
style='font-size:12.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=3 color=black face="Times New Roman"><span
style='font-size:12.0pt'>My biggest issue with CBI breakers is finding the
correct bit/tip to get good torque. I’m not sure what it is, and would
appreciate hearing what works best – it’s something like a size 2½
Phillips crossed with a Whitworth square drive, or something (neither of those
actually exist). <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 color=black face="Times New Roman"><span
style='font-size:12.0pt'><o:p> </o:p></span></font></p>
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<p class=MsoNormal><font size=3 color=black face="Times New Roman"><span
style='font-size:12.0pt'>Allan Sindelar<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=black face="Times New Roman"><span
style='font-size:10.0pt'><a href="mailto:Allan@positiveenergysolar.com">Allan@positiveenergysolar.com</a></span></font><o:p></o:p></p>
<p class=MsoNormal><font size=2 color=black face="Times New Roman"><span
style='font-size:10.0pt'>NABCEP Certified Photovoltaic Installer</span></font><o:p></o:p></p>
<p class=MsoNormal><font size=2 color=black face="Times New Roman"><span
style='font-size:10.0pt'>EE98J Journeyman Electrician</span></font><o:p></o:p></p>
<p class=MsoNormal><font size=3 color=black face="Times New Roman"><span
style='font-size:12.0pt'>Positive Energy, Inc.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 color=black face="Times New Roman"><span
style='font-size:12.0pt'>3201 Calle Marie<o:p></o:p></span></font></p>
<p class=MsoNormal><st1:place w:st="on"><st1:City w:st="on"><font size=3
color=black face="Times New Roman"><span style='font-size:12.0pt'>Santa Fe</span></font></st1:City>,
<st1:State w:st="on">New Mexico</st1:State> <st1:PostalCode w:st="on">87507</st1:PostalCode></st1:place><o:p></o:p></p>
<p class=MsoNormal><font size=3 color=black face="Times New Roman"><span
style='font-size:12.0pt'>505 424-1112<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=black face=Arial><span style='font-size:
10.0pt;font-family:Arial'><a href="http://www.positiveenergysolar.com">www.positiveenergysolar.com</a></span></font><o:p></o:p></p>
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<p class=MsoNormal><font size=3 color=black face="Times New Roman"><span
style='font-size:12.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=3 color=black face="Times New Roman"><span
style='font-size:12.0pt'>Allan,<br>
I've had trouble with breakers opening when they shouldn't. On an array
of two strings of Mitsubishi 175s (Isc = 7.9A) I had two 15-A breakers
open. Last week, I had a low-power call from a customer with three
strings of Evergreen 190s (Isc = 7.1A); one 15-A breaker in the combiner was
open. Most of my installs are around 3000 ft elevation, so the irradiance
is possibly a little higher than normal, but not by enough that it should be an
issue for 15-amp breakers. If this is a wide-spread problem, I'd expect
others on this list to have noticed.<br>
<br>
As others have mentioned, it is important to take precautions to make sure that
stranded wires are well tightened in these breakers. I tighten, wiggle,
re-tighten, and then check again later. On systems where I've had
breakers open, loose connections haven't been the issue.<br>
<br>
Kent Osterberg<br>
<st1:place w:st="on"><st1:PlaceName w:st="on">Blue</st1:PlaceName> <st1:PlaceType
w:st="on">Mountain</st1:PlaceType></st1:place> Solar, Inc.<br>
<a href="http://www.bluemoutainsolar.com/">www.bluemoutainsolar.com</a><br>
<br>
<o:p></o:p></span></font></p>
<pre wrap=""><font size=2 color=black face="Courier New"><span
style='font-size:10.0pt'>Can you be more specific as to what<o:p></o:p></span></font></pre><pre><font
size=2 color=black face="Courier New"><span style='font-size:10.0pt'>problems you have had? <o:p></o:p></span></font></pre></div>
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