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<font face="Helvetica, Arial, sans-serif">NEC says 10' from the
array, defined as "</font><font face="Helvetica, Arial,
sans-serif">
<meta http-equiv="Content-Type" content="text/html;
charset=ISO-8859-1">
A mechanically integrated assembly of modules or panels with a
support structure and foundation, tracker, and other components,
as required, to form a direct-current power-producing unit.
<title>70HB14_CH00_FM_pi_xii.pdf</title>
" I take this to mean that the "array" definition includes support
structure, so you could go 10' from the bottom of the pole? <br>
<br>
But that doesn't matter, as rapid shutdown requirements only apply
to PV systems "on or in" buildings; it only applies to a
ground-mounted system if you bring the dc all the way into a
building (for at least a 5' run within the structure). So, Rapid
Shutdown doesn't apply at all to your scenario where only the ac
wiring from a pole mount enters the building.<br>
<br>
DKC<br>
<br>
<br>
</font>
<div class="moz-cite-prefix">On 2014/6/25, 12:00, Jesse Dahl wrote:<br>
</div>
<blockquote
cite="mid:CAJLdFVc10ohBXE949za=Mvs9cRsES4vL+pFF6VQWB5JHc7no3A@mail.gmail.com"
type="cite">
<div dir="ltr">Re-reading this rapid shutdown convo.
<div><br>
</div>
<div> Does 10' from the array mean from the modules or the
"mount"? What if the array is on a pole, the pole is 15' tall
and the inverter is mounted at the base of the pole? Since
the array (modules) is 15' from the inverter is rapid shutdown
required? </div>
<div><br>
</div>
<div>Again, since the title of 690.12 is "On Buildings" is it
required for pole mounts where only AC enters the building?
Thoughts?</div>
<div><br>
</div>
<div>Thanks!</div>
<div><br>
</div>
<div><br>
</div>
<div>Jesse </div>
</div>
<div class="gmail_extra"><br>
<br>
<div class="gmail_quote">On Sat, Apr 19, 2014 at 12:22 PM, Dan
Fink <span dir="ltr"><<a moz-do-not-send="true"
href="mailto:danbob88@gmail.com" target="_blank">danbob88@gmail.com</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">
<div dir="ltr">Hi Aaron, boB, Wrenches;
<div>
<div><br>
</div>
<div>I think Aaron brings up a good point, and it's
certainly confusing to me.</div>
<div><br>
</div>
<div>The boldface type heading of 690.12 is "Rapid
Shutdown of PV Systems on Buildings"</div>
<div><br>
</div>
<div>The body of the 690.12 text begins with "PV system
*circuits* installed on or in buildings shall....."</div>
<div><br>
</div>
<div>690.2 defines "Photovoltaic source circuit" as
"Circuits between modules and from modules to the
common connection point(s) of the DC system" </div>
<div><br>
</div>
<div>and "Photovoltaic output circuit" as "Circuit
conductors between the PV source circuit(s) and the
inverter or DC utilization equipment."</div>
<div><br>
</div>
<div>"PV system" from the heading of 690.12 is not
defined in 690.2, other than that the definition of
"Photovoltaic system voltage" specifically includes
both PV output and source circuits.</div>
<div><br>
</div>
<div>To me the confusing part of 690.12 is "PV Systems
on Buildings" is that "system" is not defined, and
tends to imply rooftop arrays. But "PV system circuits
installed on or in buildings shall....." is pretty
clear. I interpret it to mean anything DC and PV stuck
to the side of building like conduit, etc, or running
inside....which means it applies to ground-mount
arrays too if they terminate outside or inside the
building.</div>
<div><br>
</div>
<div>What I'm seeing as the easy work-around for us
off-grid folk is the old "power shed" idea containing
battery bank, balance of system, inverter etc....just
build it within 10 feet of the PV array and you're
fine.</div>
<div><br>
</div>
<div>Any thoughts?</div>
<div>
<div>
<div><br>
</div>
</div>
</div>
</div>
</div>
<div class="gmail_extra"><br clear="all">
<div>Dan Fink,<br>
Executive Director;<br>
Otherpower<br>
Buckville Energy Consulting<br>
Buckville Publications LLC<br>
NABCEP / IREC accredited Continuing Education Providers<br>
<a moz-do-not-send="true" href="tel:970.672.4342"
value="+19706724342" target="_blank">970.672.4342</a><br>
<br>
</div>
<br>
<br>
<div class="gmail_quote">On Fri, Apr 18, 2014 at 3:30 PM,
<a moz-do-not-send="true"
href="mailto:boB@midnitesolar.com" target="_blank">boB@midnitesolar.com</a>
<span dir="ltr"><<a moz-do-not-send="true"
href="mailto:boB@midnitesolar.com" target="_blank">boB@midnitesolar.com</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex"><br>
Bill Brooks should probably respond to this also, but
reading the NEC, it looks like if the wires<br>
do not go inside the building to run more than 5 feet
(as the crow flies), the the rapid disconnect<br>
does not apply. OR, less than 10 feet from the
array IF the PV is mounted on that building.<span><font
color="#888888"><br>
<br>
boB</font></span>
<div>
<div><br>
<br>
<br>
<br>
On 4/18/2014 1:34 PM, Aaron Mandelkorn wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0
0 .8ex;border-left:1px #ccc
solid;padding-left:1ex">
The rapid shutdown language is so confusing.
When looking at the rapid shutdown language,
does PV systems "on" a building refer to only
situations where the array is on a building; or
does it include DC conductors as well. For
example, if the DC conductors from a pole
mounted array run up the side of a building
before punching in to the inverter, does this
require rapid shutdown? Is this PV system
considered "on" a building?<br>
<br>
Aaron<br>
<br>
Aaron Mandelkorn<br>
Owner/Solar Specialist<br>
Renewable Energy Outfitters<br>
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href="tel:970-596-3744" value="+19705963744"
target="_blank">970-596-3744</a><br>
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<a moz-do-not-send="true"
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<br>
<br>
</blockquote>
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