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<p>Good work all, and to Mr. Nelson for pursuing. I am in the
middle of two battery designs, and I am hoping our inspector
doesn't make the same mistake. Now I can show this thread if so.
Chris</p>
<div class="moz-cite-prefix">On 7/30/2025 3:58 PM, MDElectricSolar
via RE-wrenches wrote:<br>
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cite="mid:FBB99218-216C-43ED-8353-5C39F00DC89A@gmail.com">
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Yes! Thanks to all of the amazing wrenches who continually share
their vast knowledge and experiences.
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<div>Michael D Nelson</div>
<div>MD Electric & Solar, Inc.</div>
<div>707-684-0064 mobile</div>
<div>707-884-1862 office</div>
<div><a class="moz-txt-link-abbreviated" href="http://www.mdelectricsolar.com">www.mdelectricsolar.com</a></div>
<div><a class="moz-txt-link-abbreviated" href="http://www.facebook.com/mdelectricandsolar">www.facebook.com/mdelectricandsolar</a></div>
<br>
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<div dir="ltr"><br>
<blockquote type="cite">On Jul 30, 2025, at 12:47 PM, Jason
Szumlanski via RE-wrenches
<a class="moz-txt-link-rfc2396E" href="mailto:re-wrenches@lists.re-wrenches.org"><re-wrenches@lists.re-wrenches.org></a> wrote:<br>
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<div class="gmail_default"
style="font-family:arial,helvetica,sans-serif">Whew!
That is a relief. Good for you for taking it to the
next level. These inspectors can't keep claiming
that the "industry is new." They need to get with
the times!</div>
<br clear="all">
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<div dir="ltr" class="gmail_signature">
<div dir="ltr"><br>
Jason Szumlanski
<div><span
style="color:rgb(51,51,51);font-family:Roboto,RobotoDraft,Helvetica,Arial,sans-serif;font-size:13px">Principal
Solar Designer | Florida Solar Design Group</span><br
style="color:rgb(51,51,51);font-family:Roboto,RobotoDraft,Helvetica,Arial,sans-serif;font-size:13px">
<span
style="color:rgb(51,51,51);font-family:Roboto,RobotoDraft,Helvetica,Arial,sans-serif;font-size:13px">NABCEP
Certified Solar Professional (PVIP)</span><br
style="color:rgb(51,51,51);font-family:Roboto,RobotoDraft,Helvetica,Arial,sans-serif;font-size:13px">
<span
style="color:rgb(51,51,51);font-family:Roboto,RobotoDraft,Helvetica,Arial,sans-serif;font-size:13px">Florida
State Certified Solar Contractor CVC56956</span></div>
<div><font color="#333333"
face="Roboto, RobotoDraft, Helvetica, Arial, sans-serif">Florida
Certified Electrical Contractor EC13013208</font></div>
</div>
</div>
</div>
<br>
</div>
<br>
<div class="gmail_quote gmail_quote_container">
<div dir="ltr" class="gmail_attr">On Wed, Jul 30, 2025
at 3:33 PM MDElectricSolar <<a
href="mailto:mdelectricsolar@gmail.com"
moz-do-not-send="true" class="moz-txt-link-freetext">mdelectricsolar@gmail.com</a>>
wrote:<br>
</div>
<blockquote class="gmail_quote"
style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<div dir="auto">I emailed and eventually spoke with
the building inspector supervisor and got him to
agree that what they're looking for is an AC
disconnect, within sight of the ESS which
disconnects and locks open any connection to the
house. He was going to reiterate to his inspectors
that it is not between the battery and the
inverter. <br
id="m_-4391956576879911638lineBreakAtBeginningOfSignature">
<div dir="ltr">
<div>Michael D Nelson</div>
<div>MD Electric & Solar, Inc.</div>
<div>707-684-0064 mobile</div>
<div>707-884-1862 office</div>
<div><a href="http://www.mdelectricsolar.com"
target="_blank" moz-do-not-send="true">www.mdelectricsolar.com</a></div>
<div><a
href="http://www.facebook.com/mdelectricandsolar" target="_blank"
moz-do-not-send="true">www.facebook.com/mdelectricandsolar</a></div>
<br>
</div>
<div dir="ltr"><br>
<blockquote type="cite">On Jul 30, 2025, at
12:21 PM, Jason Szumlanski via RE-wrenches <<a
href="mailto:re-wrenches@lists.re-wrenches.org" target="_blank"
moz-do-not-send="true"
class="moz-txt-link-freetext">re-wrenches@lists.re-wrenches.org</a>>
wrote:<br>
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</div>
<blockquote type="cite">
<div dir="ltr">
<div dir="ltr">
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<div
style="font-family:arial,helvetica,sans-serif">True, but a suitable DC
rated disconnect switch with large
enough terminals is going to be very
expensive.</div>
<div
style="font-family:arial,helvetica,sans-serif"><br>
</div>
<div
style="font-family:arial,helvetica,sans-serif">The whole thing boils
down to the definition of an ESS.
Getting the inspector to realize that
the 706.2 disconnect is not required to
be a<b> battery</b> disconnect is key
here.</div>
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<div dir="ltr" class="gmail_signature">
<div dir="ltr"><br>
Jason Szumlanski
<div><span
style="color:rgb(51,51,51);font-family:Roboto,RobotoDraft,Helvetica,Arial,sans-serif;font-size:13px">Principal
Solar Designer | Florida Solar
Design Group</span><br
style="color:rgb(51,51,51);font-family:Roboto,RobotoDraft,Helvetica,Arial,sans-serif;font-size:13px">
<span
style="color:rgb(51,51,51);font-family:Roboto,RobotoDraft,Helvetica,Arial,sans-serif;font-size:13px">NABCEP
Certified Solar Professional
(PVIP)</span><br
style="color:rgb(51,51,51);font-family:Roboto,RobotoDraft,Helvetica,Arial,sans-serif;font-size:13px">
<span
style="color:rgb(51,51,51);font-family:Roboto,RobotoDraft,Helvetica,Arial,sans-serif;font-size:13px">Florida
State Certified Solar Contractor
CVC56956</span></div>
<div><font color="#333333"
face="Roboto, RobotoDraft, Helvetica, Arial, sans-serif">Florida
Certified Electrical Contractor
EC13013208</font></div>
</div>
</div>
</div>
<br>
</div>
<br>
<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">On Tue,
Jul 29, 2025 at 11:38 PM William Miller
via RE-wrenches <<a
href="mailto:re-wrenches@lists.re-wrenches.org" target="_blank"
moz-do-not-send="true"
class="moz-txt-link-freetext">re-wrenches@lists.re-wrenches.org</a>>
wrote:<br>
</div>
<blockquote class="gmail_quote"
style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<div>
<div lang="EN-US">
<div>
<p class="MsoNormal"><span
style="font-family:Verdana,"sans-serif";color:rgb(31,73,125)">Jason:</span></p>
<p class="MsoNormal"><span
style="font-family:Verdana,"sans-serif";color:rgb(31,73,125)"> </span></p>
<p class="MsoNormal"><span
style="font-family:Verdana,"sans-serif";color:rgb(31,73,125)">Fine
stranded cables can be used with
set screw terminals if you use
ferrules.</span></p>
<p class="MsoNormal"><span
style="font-family:Verdana,"sans-serif";color:rgb(31,73,125)"> </span></p>
<p class="MsoNormal"><span
style="font-family:Verdana,"sans-serif";color:rgb(31,73,125)">You
hint at a broader point: The
industry is not providing
solutions that the regulators
are demanding. Any battery with
BMS should have a remote
inhibit. Problem solved.</span></p>
<p class="MsoNormal"><span
style="font-family:Verdana,"sans-serif";color:rgb(31,73,125)"> </span></p>
<p class="MsoNormal"><span
style="font-family:Verdana,"sans-serif";color:rgb(31,73,125)">William</span></p>
<p class="MsoNormal"><span
style="font-family:Verdana,"sans-serif";color:rgb(31,73,125)"> </span></p>
<p class="MsoNormal"><span
style="font-family:Arial,"sans-serif";color:rgb(31,73,125)">Miller
Solar</span></p>
<p class="MsoNormal"><span
style="font-family:Arial,"sans-serif";color:rgb(31,73,125)">17395
Oak Road, Atascadero, CA 93422</span></p>
<p class="MsoNormal"><span
style="font-family:Arial,"sans-serif";color:rgb(31,73,125)">805-438-5600</span></p>
<p class="MsoNormal"><span
style="font-family:Arial,"sans-serif";color:rgb(31,73,125)"><a
href="http://www.millersolar.com/" target="_blank"
moz-do-not-send="true"><span
style="color:blue">www.millersolar.com</span></a></span></p>
<p class="MsoNormal"><span
style="font-family:Arial,"sans-serif";color:rgb(31,73,125)">CA
Lic. 773985</span></p>
<p class="MsoNormal"><span
style="font-size:11pt;font-family:Calibri,"sans-serif";color:rgb(31,73,125)"> </span></p>
<p class="MsoNormal"><span
style="font-family:Verdana,"sans-serif";color:rgb(31,73,125)"> </span></p>
<p class="MsoNormal"><b><span
style="font-size:10pt;font-family:Tahoma,"sans-serif"">From:</span></b><span
style="font-size:10pt;font-family:Tahoma,"sans-serif"">
RE-wrenches [mailto:<a
href="mailto:re-wrenches-bounces@lists.re-wrenches.org" target="_blank"
moz-do-not-send="true"
class="moz-txt-link-freetext">re-wrenches-bounces@lists.re-wrenches.org</a>]
<b>On Behalf Of </b>Jason
Szumlanski via RE-wrenches<br>
<b>Sent:</b> Tuesday, July 29,
2025 2:45 PM<br>
<b>To:</b> RE-wrenches<br>
<b>Cc:</b> Jason Szumlanski<br>
<b>Subject:</b> Re:
[RE-wrenches] Battery RSD</span></p>
<p class="MsoNormal"> </p>
<div>
<div>
<div>
<div>
<p class="MsoNormal"><span
style="font-family:Arial,"sans-serif"">The problem I see with
just complying is that
there is really no
practical or
cost-effective way to
comply. You would have
to somehow transition
from battery cable to
some other cable type,
because typical fusible
disconnect switch lugs
are not going to be
rated to accept
fine-stranded battery cable,
especially in the
required size. </span></p>
</div>
<div>
<p class="MsoNormal"><span
style="font-family:Arial,"sans-serif""> </span></p>
</div>
</div>
</div>
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<pre wrap="" class="moz-quote-pre">_______________________________________________
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<pre class="moz-signature" cols="72">--
Christopher Warfel, PE
ENTECH Engineering, Inc.
PO Box 871, Block Island, RI 02807
(401) 447-5773</pre>
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