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And... after seeing boB's email I realize that my last sentence is
incorrect given the existence of the
<meta charset="utf-8">
MNPVHV8-DLTL-3R for exactly this purpose.<br>
<br>
DKC<br>
<br>
<br>
<div class="moz-cite-prefix">On 2014/10/9 15:29, Dave Click wrote:<br>
</div>
<blockquote cite="mid:5436E224.5080508@fsec.ucf.edu" type="cite">
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There is some pressure on NM specifically to postpone adoption of
690.12 until more products are available, so that may help you
out. To my knowledge, micro-inverters don't need to comply with
705.12(D)(6) since there are no suitable products available
[90.4]. Equipment does need to be listed, and it does need to
provide rapid shutdown functionality, but it does not need to be
"listed for rapid shutdown" to be code-compliant since that isn't
a thing.<br>
<br>
String inverters generally speaking would have to have some method
of "control" within 10' of a rooftop array, like contactor
combiners. I'm interested in seeing what SMA's solution is, since
contactor combiners (as discussed earlier in this thread) aren't
well suited for these multi-MPPT inverters. I guess you can always
add a second contactor but I don't know what listed equipment is
available right now (so... 90.4?).<br>
<br>
DKC<br>
<br>
<div class="moz-cite-prefix">On 2014/10/9 12:41, Randy wrote:<br>
</div>
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<p class="MsoNormal"><span style="color:#1F497D">Hi Wrenches,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">We are being
forced to adopt 690.12 Rapid Shutdown requirement based on
several explanations given to our industry:<o:p></o:p></span></p>
<p class="MsoListParagraph"
style="text-indent:-.25in;mso-list:l0 level1 lfo1"><!--[if !supportLists]--><span
style="color:#1F497D"><span style="mso-list:Ignore">1.<span
style="font:7.0pt "Times New Roman"">
</span></span></span><!--[endif]--><span
style="color:#1F497D">otherwise we would be ignoring the
life safety and put our fire fighters lives in peril <o:p></o:p></span></p>
<p class="MsoListParagraph"
style="text-indent:-.25in;mso-list:l0 level1 lfo1"><!--[if !supportLists]--><span
style="font-size:10.0pt;font-family:"Tahoma","sans-serif""><span
style="mso-list:Ignore">2.<span style="font:7.0pt
"Times New Roman""> </span></span></span><!--[endif]--><span
style="color:#1F497D">This product can be constructed from
readily available, over-the-counter code compliant
components. T</span><span
style="font-size:10.0pt;font-family:"Tahoma","sans-serif";color:#1F497D">his
(is) to be the intent of CMP4<span
class="apple-converted-space"> </span>when compiling
the NFPA<span class="apple-converted-space"> </span>70.</span><span
style="font-size:10.0pt;font-family:"Tahoma","sans-serif""><o:p></o:p></span></p>
<p style="margin:0in;margin-bottom:.0001pt"><span
style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> <o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">We do not
want to act like an industry that appears to be fighting
against safety. And we know there are a few products that
are code compliant, micro-inverters (don’t comply with
705.12 (D) (6) because there are no products), Solaredge,
and Tigo (is it approved?) yet this is not how we choose
products. <o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">And the SMA
SPS inverter is not going to work in a 690.12 environment
without complications as far as I can see. <o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Appreciate
comments that might support the right decision.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Thanks,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Randy<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<div>
<p class="MsoNormal"><span
style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F497D">Randy
Sadewic</span><span style="color:#1F497D"><o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F497D">Cell:
505 570-0137<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F497D"><a
moz-do-not-send="true"
href="mailto:Randy@PositiveEnergySolar.com"><span
style="color:blue">Randy@PositiveEnergySolar.com</span></a><o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F497D"><img
id="Picture_x0020_1"
src="cid:part2.03090306.06030707@fsec.ucf.edu"
alt="http://positiveenergysolar.com/admin/content/uploads/PES-logo-3.jpg"
border="0" height="103" width="239"><o:p></o:p></span></p>
</div>
<p class="MsoNormal"><span style="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 [<a moz-do-not-send="true"
class="moz-txt-link-freetext"
href="mailto:re-wrenches-bounces@lists.re-wrenches.org">mailto:re-wrenches-bounces@lists.re-wrenches.org</a>]
<b>On Behalf Of </b>Steve Jefferson<br>
<b>Sent:</b> Tuesday, October 07, 2014 8:33 AM<br>
<b>To:</b> RE-wrenches<br>
<b>Subject:</b> Re: [RE-wrenches] TL Inverters<o:p></o:p></span></p>
</div>
</div>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span style="color:#1F497D">The first gen
of TL’s did have a somewhat tight window for the DC
window.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">However, the
new SBxxxxTL-US-22 (3kW – 7700kW, with secure power
supply) Start Voltage is 125, MPPT is 175-480 (max of
600Vdc)<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Also, for
larger needs, the STP (12kW – 24kW) start voltage is 150,
MPPT is 300-800V (max of 1000Vdc).<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<div>
<p class="MsoNormal"><span
style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F497D">SMA
America, LLC<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F497D">Steve
Jefferson<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F497D">Service
Line Supervisor<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F497D">3925
Atherton Ave<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F497D">Rocklin,
CA 95765 - 3714<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F497D">U.S.A.<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F497D">Tel: +1
916 625 3185 (direct)<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F497D">Fax:
+1 916 625 0871<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F497D">Mobile:
+1 916 622 4253<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F497D">Email:
</span><span style="color:#1F497D"><a
moz-do-not-send="true"
href="mailto:Steve.jefferson@SMA-America.com"><span
style="font-size:10.0pt;font-family:"Arial","sans-serif"">Steve.jefferson@SMA-America.com</span></a></span><span
style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F497D"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><a
moz-do-not-send="true"
href="http://www.sma-america.com/"><span
style="font-size:10.0pt;font-family:"Arial","sans-serif"">www.SMA-America.com</span></a></span><span
style="font-size:10.0pt;font-family:"Arial","sans-serif";color:blue"><o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><a moz-do-not-send="true"
href="http://www.youtube.com/watch?v=yQWzPuyqhzo&feature=youtu.be"><span
style="color:#1F497D;text-decoration:none"><img
id="Picture_x0020_8"
src="cid:part6.09050307.08010201@fsec.ucf.edu"
alt="cid:image001.png@01CF1CFA.FE18BEB0" border="0"
height="90" width="432"></span></a><span
style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F497D"><o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F497D"> <o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:9.0pt;font-family:"Arial","sans-serif";color:#1F497D">This
email and any attachments thereto may contain SMA
America, LLC confidential, privileged and private
material for the sole use of the intended recipient. Any
review, copying, or distribution of this email (or any
attachments thereto) by others is strictly prohibited.
If you are not the intended recipient, please contact
the sender immediately and permanently delete the
original and any copies of this email and any
attachments thereto. Thank you.<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
</div>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<div>
<div style="border:none;border-top:solid #E1E1E1
1.0pt;padding:3.0pt 0in 0in 0in">
<p class="MsoNormal"><b>From:</b> RE-wrenches [<a
moz-do-not-send="true"
href="mailto:re-wrenches-bounces@lists.re-wrenches.org">mailto:re-wrenches-bounces@lists.re-wrenches.org</a>]
<b>On Behalf Of </b>Mark Byington<br>
<b>Sent:</b> Tuesday, October 07, 2014 6:59 AM<br>
<b>To:</b> <a moz-do-not-send="true"
href="mailto:RE-wrenches@lists.re-wrenches.org">RE-wrenches@lists.re-wrenches.org</a><br>
<b>Subject:</b> Re: [RE-wrenches] TL Inverters<o:p></o:p></p>
</div>
</div>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Just a word
of caution to those not having experience with SMA TL
inverters - the larger units (7-11 kW) have an extremely
narrow input DC voltage window. Depending on your module
voltage and string design, all you need is a module or two
to be shaded to fall out of the MPPT input voltage range.
The smaller units (3-5 kW) with the Secure Power Supply
don't have this problem. We no longer use these larger
SMA TL inverters unless we can do maximum string length
(e.g. strings of 8 for SunPower 96-cell) and there is zero
shade at the site.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">I believe SMA
is in the process of adding larger units to the line that
has the Secure Power Supply. They added the 6 kW unit
earlier this year, and just announced the 7 kW unit with
Secure Power Supply.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Mark Byington<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Cobalt Power
Systems, Inc.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
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