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<tt><font size="+1">How many basements, utility rooms etc. have
conductors that fail the ground mounted solar array test? I
hope the live parts is what is protected and not the conductors
themselves. </font></tt><br>
<br>
<div class="moz-cite-prefix">On 9/10/2015 7:32 PM, William Miller
wrote:<br>
</div>
<blockquote
cite="mid:72782D2C-77B7-4B46-9FDE-36583FF328D7@millersolar.com"
type="cite">
<meta http-equiv="content-type" content="text/html;
charset=windows-1252">
<div>Ray:</div>
<div><br>
</div>
<div>I apologize but I thought this discussion was off-line. </div>
<div><br>
</div>
<div>Mike Holy and everyone but apparently our local AHJ agree:
wire guarding is required. </div>
<div><br>
</div>
<div>William<br>
<br>
<br>
</div>
<div><br>
On Sep 10, 2015, at 4:04 PM, Ray Walters <<a
moz-do-not-send="true" href="mailto:ray@solarray.com"><a class="moz-txt-link-abbreviated" href="mailto:ray@solarray.com">ray@solarray.com</a></a>>
wrote:<br>
<br>
</div>
<blockquote type="cite">
<div>
<meta content="text/html; charset=windows-1252"
http-equiv="Content-Type">
I'm confused again. Do we need to guard ground mount arrays
or not? I thought it was clear that we did need to guard the
array wiring.<br>
<br>
<pre class="moz-signature" cols="72">R.Ray Walters
CTO, Solarray, Inc
Nabcep Certified PV Installer,
Licensed Master Electrician
Solar Design Engineer
303 505-8760</pre>
<div class="moz-cite-prefix">On 9/9/2015 6:46 PM, William
Miller wrote:<br>
</div>
<blockquote
cite="mid:93513de56ee52a966f9adc066a388b71@mail.gmail.com"
type="cite">
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<p class="MsoNormal"><span
style="font-family:"Arial","sans-serif";color:#1f497d">Bill:</span></p>
<p class="MsoNormal"><span
style="font-family:"Arial","sans-serif";color:#1f497d"> </span></p>
<p class="MsoNormal"><span
style="font-family:"Arial","sans-serif";color:#1f497d">How
right you are. I spoke with Mike Stoker of the County
of San Luis Obispo today and he told me that both you
and Mike Holt are saying that guards are not required
on readily accessible wiring. I sent him your recent
email to me on the subject. He may be in touch. If
you want to write him, his email is <a
moz-do-not-send="true"
href="mailto:mstoker@co.slo.ca.us"><a class="moz-txt-link-abbreviated" href="mailto:mstoker@co.slo.ca.us">mstoker@co.slo.ca.us</a></a>.</span></p>
<p class="MsoNormal"><span
style="font-family:"Arial","sans-serif";color:#1f497d"> </span></p>
<p class="MsoNormal"><span
style="font-family:"Arial","sans-serif";color:#1f497d">I
looked on Mike Holt’s site and did not see anything
from Mike about wire guarding. I wrote to Mike and
asked him directly. I will let you know what I learn.</span></p>
<p class="MsoNormal"><span
style="font-family:"Arial","sans-serif";color:#1f497d"> </span></p>
<p class="MsoNormal"><span
style="font-family:"Arial","sans-serif";color:#1f497d">William</span></p>
<p class="MsoNormal"><span
style="font-family:"Arial","sans-serif";color:#1f497d"> </span></p>
<p class="MsoNormal"><span
style="font-family:"Arial","sans-serif";color:#1f497d"> </span></p>
<div>
<p class="MsoNormal"><span
style="font-size:10.0pt;font-family:"Arial","sans-serif""><mime-attachment.jpg><br>
Lic 773985<br>
<a moz-do-not-send="true"
href="http://www.millersolar.com/"><span
style="color:blue">millersolar.com</span></a><br>
805-438-5600</span></p>
</div>
<p class="MsoNormal"><span
style="font-family:"Arial","sans-serif";color:#1f497d"> </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";color:windowtext">From:</span></b><span
style="font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext">
RE-wrenches [mailto:<a moz-do-not-send="true"
href="mailto:re-wrenches-bounces@lists.re-wrenches.org">re-wrenches-bounces@lists.re-wrenches.org</a>]
<b>On Behalf Of </b><a moz-do-not-send="true"
href="mailto:billbrooks7@sbcglobal.net">billbrooks7@sbcglobal.net</a><br>
<b>Sent:</b> Saturday, September 05, 2015 2:21 PM<br>
<b>To:</b> 'RE-wrenches'<br>
<b>Subject:</b> Re: [RE-wrenches] Guarding against
live parts 690.7 (D)</span></p>
</div>
</div>
<p class="MsoNormal"> </p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">William,</span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">You
can always quote me to an AHJ, as long as I actually
said it or wrote it. </span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">I
have been accused of saying all kinds of things that I
never said—people just misunderstood what I said and
“quoted” me incorrectly. </span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">All
the best—and stay safe. Always tragic to hear of
electrocutions—most are so preventable as this one
clearly was. Never, ever assume that a circuit is off.
I know you warned against inductive sensors, but they
should still be used as one of several methods to
detect voltage. I just watched a video about a guy who
thought he was testing a 480V circuit when it was
really a 12kV circuit. The fireball caught him on fire
and burned him to death. The meter was the problem. An
inductive sensor would have saved his life. There is
no single method for safety.</span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Bill.</span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span></p>
<div>
<div style="border:none;border-top:solid #e1e1e1
1.0pt;padding:3.0pt 0in 0in 0in">
<p class="MsoNormal"><b><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:windowtext">From:</span></b><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:windowtext">
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>William Miller<br>
<b>Sent:</b> Friday, September 04, 2015 2:37 PM<br>
<b>To:</b> RE-wrenches <<a
moz-do-not-send="true"
href="mailto:re-wrenches@lists.re-wrenches.org"><a class="moz-txt-link-abbreviated" href="mailto:re-wrenches@lists.re-wrenches.org">re-wrenches@lists.re-wrenches.org</a></a>><br>
<b>Subject:</b> Re: [RE-wrenches] Guarding against
live parts 690.7 (D)</span></p>
</div>
</div>
<p class="MsoNormal"> </p>
<p class="MsoNormal"><span
style="font-family:"Arial","sans-serif";color:#1f497d">Bill:</span></p>
<p class="MsoNormal"><span
style="font-family:"Arial","sans-serif";color:#1f497d"> </span></p>
<p class="MsoNormal"><span
style="font-family:"Arial","sans-serif";color:#1f497d">I
apologize that I assumed incorrectly. Thank you for
your assessment. May I quote you to our AHJ?</span></p>
<p class="MsoNormal"><span
style="font-family:"Arial","sans-serif";color:#1f497d"> </span></p>
<p class="MsoNormal"><span
style="font-family:"Arial","sans-serif";color:#1f497d">Sincerely,</span></p>
<p class="MsoNormal"><span
style="font-family:"Arial","sans-serif";color:#1f497d"> </span></p>
<p class="MsoNormal"><span
style="font-family:"Arial","sans-serif";color:#1f497d">William</span></p>
<p class="MsoNormal"><span
style="font-family:"Arial","sans-serif";color:#1f497d"> </span></p>
<p class="MsoNormal"><span
style="font-family:"Arial","sans-serif";color:#1f497d"> </span></p>
<div>
<p class="MsoNormal"><span
style="font-size:10.0pt;font-family:"Arial","sans-serif""><img
id="_x0000_i1025"
src="cid:part8.00010001.00020107@entech-engineering.com"
alt="Gradient Cap_mini" border="0" height="28"
width="64"><br>
Lic 773985<br>
<a moz-do-not-send="true"
href="http://www.millersolar.com/">millersolar.com</a><br>
805-438-5600</span></p>
</div>
<p class="MsoNormal"><span
style="font-family:"Arial","sans-serif";color:#1f497d"> </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";color:windowtext">From:</span></b><span
style="font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext">
RE-wrenches [mailto:<a moz-do-not-send="true"
href="mailto:re-wrenches-bounces@lists.re-wrenches.org">re-wrenches-bounces@lists.re-wrenches.org</a>]
<b>On Behalf Of </b><a moz-do-not-send="true"
href="mailto:billbrooks7@sbcglobal.net">billbrooks7@sbcglobal.net</a><br>
<b>Sent:</b> Friday, September 04, 2015 12:59 PM<br>
<b>To:</b> 'RE-wrenches'<br>
<b>Subject:</b> Re: [RE-wrenches] Guarding against
live parts 690.7 (D)</span></p>
</div>
</div>
<p class="MsoNormal"> </p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">William,</span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">I’m
shocked and offended (a tiny bit) that you would
prejudice yourself to not agree with me ;-).</span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">First
of all I have been heavily involved in the revising of
the language in 690.31(A) to make it clear that we
cannot walk up and touch cables operating at 600V. The
term guarded is a defined term:</span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span></p>
<p class="MsoNormal" style="text-autospace:none"><b><span
style="font-size:10.0pt;font-family:Times-Bold;color:windowtext">Guarded.
</span></b><span
style="font-size:10.0pt;font-family:Times-Roman;color:windowtext">Covered,
shielded, fenced, enclosed, or otherwise</span></p>
<p class="MsoNormal" style="text-autospace:none"><span
style="font-size:10.0pt;font-family:Times-Roman;color:windowtext">protected
by means of suitable covers, casings, barriers,</span></p>
<p class="MsoNormal" style="text-autospace:none"><span
style="font-size:10.0pt;font-family:Times-Roman;color:windowtext">rails,
screens, mats, or platforms to remove the likelihood</span></p>
<p class="MsoNormal" style="text-autospace:none"><span
style="font-size:10.0pt;font-family:Times-Roman;color:windowtext">of
approach or contact by persons or objects to a point</span></p>
<p class="MsoNormal"><span
style="font-size:10.0pt;font-family:Times-Roman;color:windowtext">of
danger.</span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">A
fence actually does not prevent ready access (unless
it does not have a gate), but the term guarded fixes
that problem. The guarding means has to be approved by
the AHJ, but many methods have been employed including
mounting lattice work around the backside of fixed
ground-mounted systems.</span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Fences
are best used for larger systems (over 50-100kW)
whereas other methods—albeit labor intensive—are
generally preferred for smaller installations (under
100 kW)</span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">No
intelligent person would disagree with this proper
interpretation of the NEC—including you.</span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Bill.</span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span></p>
<div>
<div style="border:none;border-top:solid #e1e1e1
1.0pt;padding:3.0pt 0in 0in 0in">
<p class="MsoNormal"><b><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:windowtext">From:</span></b><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:windowtext">
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>William Miller<br>
<b>Sent:</b> Friday, September 04, 2015 12:09 PM<br>
<b>To:</b> RE-wrenches <<a
moz-do-not-send="true"
href="mailto:re-wrenches@lists.re-wrenches.org"><a class="moz-txt-link-abbreviated" href="mailto:re-wrenches@lists.re-wrenches.org">re-wrenches@lists.re-wrenches.org</a></a>><br>
<b>Subject:</b> Re: [RE-wrenches] Guarding against
live parts 690.7 (D)</span></p>
</div>
</div>
<p class="MsoNormal"> </p>
<p class="MsoNormal" style="margin-left:.25in"><span
style="font-family:"Arial","sans-serif";color:#1f497d">Ray:</span></p>
<p class="MsoNormal" style="margin-left:.25in"><span
style="font-family:"Arial","sans-serif";color:#1f497d"> </span></p>
<p class="MsoListParagraph" style="text-indent:-.25in"><span
style="font-family:"Arial","sans-serif"">1.</span><span
style="font-size:7.0pt"> </span><span
style="font-family:"Arial","sans-serif";color:#1f497d">Why
no fence? Aesthetics. Also costs may be a wash by
the time you mobilize a fencing contractor.</span></p>
<p class="MsoListParagraph" style="text-indent:-.25in"><span
style="font-family:"Arial","sans-serif"">2.</span><span
style="font-size:7.0pt"> </span><span
style="font-family:"Arial","sans-serif";color:#1f497d">I’d
apply the same requirements to a fence as one would to
an uncovered swimming pool. There are the same
consequences if a child ends up in the wrong place.</span></p>
<p class="MsoListParagraph" style="text-indent:-.25in"><span
style="font-family:"Arial","sans-serif"">3.</span><span
style="font-size:7.0pt"> </span><span
style="font-family:"Arial","sans-serif";color:#1f497d">Why
bother?</span></p>
<p class="MsoListParagraph" style="margin-left:1.0in"><span
style="font-family:"Arial","sans-serif";color:#1f497d">We
figure the expense will decrease as we figure better
design and implementation. Hasn’t yet. </span></p>
<p class="MsoListParagraph" style="margin-left:1.0in"><span
style="font-family:"Arial","sans-serif";color:#1f497d">We
care about safety. I figure we, as an industry, will
kill a child by electrocution someday—it is a matter
of probability. I hope it won’t be on one of our
jobs.</span></p>
<p class="MsoListParagraph" style="margin-left:1.0in"><span
style="font-family:"Arial","sans-serif";color:#1f497d">We
hope, in some small way, we influence the industry to
improve.</span></p>
<p class="MsoListParagraph" style="text-indent:-.25in"><span
style="font-family:"Arial","sans-serif"">4.</span><span
style="font-size:7.0pt"> </span><span
style="font-family:"Arial","sans-serif";color:#1f497d">The
industry has not developed solutions because there is
no demand. There is no demand because AHJs don’t
enforce the code.</span></p>
<p class="MsoNormal"><span
style="font-family:"Arial","sans-serif";color:#1f497d"> </span></p>
<p class="MsoNormal"><span
style="font-family:"Arial","sans-serif";color:#1f497d">Thanks
for the compliment. We have several new designs not
yet featured on the web site. Check back next time
this comes up.</span></p>
<p class="MsoNormal"><span
style="font-family:"Arial","sans-serif";color:#1f497d"> </span></p>
<p class="MsoNormal"><span
style="font-family:"Arial","sans-serif";color:#1f497d">William</span></p>
<p class="MsoNormal"><span
style="font-family:"Arial","sans-serif";color:#1f497d"> </span></p>
<p class="MsoNormal"><span
style="font-family:"Arial","sans-serif";color:#1f497d">PS:
I am curious what Bill Brooks take on this is, but I
don’t think I will agree with his interpretation.</span></p>
<p class="MsoNormal"><span
style="font-family:"Arial","sans-serif";color:#1f497d"> </span></p>
<p class="MsoNormal"><span
style="font-family:"Arial","sans-serif";color:#1f497d">W</span></p>
<p class="MsoNormal"><span
style="font-family:"Arial","sans-serif";color:#1f497d"> </span></p>
<p class="MsoNormal"><span
style="font-family:"Arial","sans-serif";color:#1f497d"> </span></p>
<div>
<p class="MsoNormal"><span
style="font-size:10.0pt;font-family:"Arial","sans-serif""><img
id="_x0000_i1026"
src="cid:part8.00010001.00020107@entech-engineering.com"
alt="Gradient Cap_mini" border="0" height="28"
width="64"><br>
Lic 773985<br>
<a moz-do-not-send="true"
href="http://www.millersolar.com/">millersolar.com</a><br>
805-438-5600</span></p>
</div>
<p class="MsoNormal"><span
style="font-family:"Arial","sans-serif";color:#1f497d"> </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";color:windowtext">From:</span></b><span
style="font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext">
RE-wrenches [mailto:<a moz-do-not-send="true"
href="mailto:re-wrenches-bounces@lists.re-wrenches.org">re-wrenches-bounces@lists.re-wrenches.org</a>]
<b>On Behalf Of </b>Ray Walters<br>
<b>Sent:</b> Friday, September 04, 2015 11:37 AM<br>
<b>To:</b> RE-wrenches<br>
<b>Subject:</b> Re: [RE-wrenches] Guarding against
live parts 690.7 (D)</span></p>
</div>
</div>
<p class="MsoNormal"> </p>
<p class="MsoNormal" style="margin-bottom:12.0pt">WilIiam;<br>
<br>
checked out your guards on your website, that looks
really clean, but also like a lot of work and expense.
I'm still so surprised manufacturers are not offering an
option like that to their frame systems.<br>
My question: how come you didn't just fence the array?
Shading issues on the south?<br>
If fencing, what height of fence is considered
adequate? 4 ft? 6 ft?</p>
<pre>R.Ray Walters</pre>
<pre>CTO, Solarray, Inc</pre>
<pre>Nabcep Certified PV Installer, </pre>
<pre>Licensed Master Electrician</pre>
<pre>Solar Design Engineer</pre>
<pre>303 505-8760</pre>
<div>
<p class="MsoNormal">On 9/4/2015 9:44 AM, William Miller
wrote:</p>
</div>
<blockquote style="margin-top:5.0pt;margin-bottom:5.0pt">
<p class="MsoNormal"><span
style="font-family:"Arial","sans-serif";color:#1f497d">Gary:</span></p>
<p class="MsoNormal"><span
style="font-family:"Arial","sans-serif";color:#1f497d"> </span></p>
<p class="MsoNormal"><span
style="font-family:"Arial","sans-serif";color:#1f497d">I
think the issue of PV wiring behind module that are
readily accessible is addressed in (2014) 690.31: </span></p>
<p class="MsoNormal"><span
style="font-family:"Arial","sans-serif";color:#1f497d"> </span></p>
<p class="MsoNormal"><i><span
style="font-family:"Arial","sans-serif";color:#1f497d">Where
PV source and output circuits operating at maximum</span></i></p>
<p class="MsoNormal"><i><span
style="font-family:"Arial","sans-serif";color:#1f497d">system
voltages greater than 30 volts are installed in</span></i></p>
<p class="MsoNormal"><i><span
style="font-family:"Arial","sans-serif";color:#1f497d">readily
accessible locations, circuit conductors shall be</span></i></p>
<p class="MsoNormal"><i><span
style="font-family:"Arial","sans-serif";color:#1f497d">guarded
or installed in a raceway.</span></i></p>
<p class="MsoNormal"><span
style="font-family:"Arial","sans-serif";color:#1f497d"> </span></p>
<p class="MsoNormal"><span
style="font-family:"Arial","sans-serif";color:#1f497d">I
am not sure what application the original poster had
in mind, but this is the question I think you are
asking. The interpretation to 690.31 seems clear to
me: No one should be able to touch the conductors
without resorting to a ladder, opening a locked gate
or removing a protective panel. Readily accessible
is defined thusly:</span></p>
<p class="MsoNormal"><span
style="font-family:"Arial","sans-serif";color:#1f497d"> </span></p>
<p class="MsoNormal"><i><span
style="font-family:"Arial","sans-serif";color:#1f497d">Capable
of being </span></i></p>
<p class="MsoNormal"><i><span
style="font-family:"Arial","sans-serif";color:#1f497d">reached
quickly for operation, renewal, or inspections</span></i></p>
<p class="MsoNormal"><i><span
style="font-family:"Arial","sans-serif";color:#1f497d">without
requiring those to whom ready access is requisite</span></i></p>
<p class="MsoNormal"><i><span
style="font-family:"Arial","sans-serif";color:#1f497d">to
actions such as to use tools, to climb over or
remove</span></i></p>
<p class="MsoNormal"><i><span
style="font-family:"Arial","sans-serif";color:#1f497d">obstacles,
or to resort to portable ladders, and so forth.</span></i></p>
<p class="MsoNormal"><span
style="font-family:"Arial","sans-serif";color:#1f497d"> </span></p>
<p class="MsoNormal"><span
style="font-family:"Arial","sans-serif";color:#1f497d">Implementing
this is harder than it might seem. Lacking a fence,
the installer must either use the flimsy solar-scrim
product or fabricate his or her own shielding. We
have put a fair amount of effort towards this. See
<a moz-do-not-send="true"
href="http://www.millersolar.com/MillerSolar/practices/PV_wiring/Wire_shielding/_Wire%20Shielding_history.html">link</a>.</span></p>
<p class="MsoNormal"><span
style="font-family:"Arial","sans-serif";color:#1f497d"> </span></p>
<p class="MsoNormal"><span
style="font-family:"Arial","sans-serif";color:#1f497d"> </span></p>
<p class="MsoNormal"><span
style="font-family:"Arial","sans-serif";color:#1f497d">William</span></p>
<p class="MsoNormal"><span
style="font-family:"Arial","sans-serif";color:#1f497d"> </span></p>
<p class="MsoNormal"><span
style="font-family:"Arial","sans-serif";color:#1f497d"> </span></p>
<p class="MsoNormal"><span
style="font-family:"Arial","sans-serif";color:#1f497d"> </span></p>
<p class="MsoNormal"><span
style="font-family:"Arial","sans-serif";color:#1f497d"> </span></p>
<p class="MsoNormal"><span
style="font-size:10.0pt;font-family:"Arial","sans-serif""><img
id="Picture_x0020_1"
src="cid:part8.00010001.00020107@entech-engineering.com"
alt="Gradient Cap_mini" border="0" height="28"
width="64"><br>
Lic 773985<br>
<a moz-do-not-send="true"
href="http://www.millersolar.com/">millersolar.com</a><br>
805-438-5600</span></p>
<p class="MsoNormal"><span
style="font-family:"Arial","sans-serif";color:#1f497d"> </span></p>
<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 [mailto:<a moz-do-not-send="true"
href="mailto:re-wrenches-bounces@lists.re-wrenches.org">re-wrenches-bounces@lists.re-wrenches.org</a>]
<b>On Behalf Of </b>gary easton<br>
<b>Sent:</b> Friday, September 04, 2015 2:22 AM<br>
<b>To:</b> RE-wrenches<br>
<b>Subject:</b> Re: [RE-wrenches] Guarding against
live parts 690.7 (D)</span></p>
<p class="MsoNormal"> </p>
<p class="MsoNormal">Bill </p>
<div>
<p class="MsoNormal">Are you saying there is no
requirement to shield wires on a ground array?<br>
<br>
On Friday, September 4, 2015, <<a
moz-do-not-send="true"
class="moz-txt-link-abbreviated"
href="mailto:billbrooks7@sbcglobal.net"><a class="moz-txt-link-abbreviated" href="mailto:billbrooks7@sbcglobal.net">billbrooks7@sbcglobal.net</a></a>>
wrote:</p>
<div>
<div>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Craig,</span></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">This
one is easy to misinterpret. You missed the
words “live parts”. This has been removed from
the 2017 NEC because it is actually referring
to load circuits being fed directly by a PV
system on the dc side. All references to loads
and batteries are being removed from 690.</span></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">This
is a complete non-issue.</span></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Bill.</span></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span></p>
<div>
<div style="border:none;border-top:solid #e1e1e1
1.0pt;padding:3.0pt 0in 0in 0in">
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><b><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif"">From:</span></b><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif"">
RE-wrenches [mailto:<a
moz-do-not-send="true"
href="javascript:_e(%7B%7D,'cvml','re-wrenches-bounces@lists.re-wrenches.org');"
target="_blank"><a class="moz-txt-link-abbreviated" href="mailto:re-wrenches-bounces@lists.re-wrenches.org">re-wrenches-bounces@lists.re-wrenches.org</a></a>]
<b>On Behalf Of </b>Craig Gerald Buttke<br>
<b>Sent:</b> Thursday, September 03, 2015
11:44 AM<br>
<b>To:</b> <a moz-do-not-send="true"
href="javascript:_e(%7B%7D,'cvml','re-wrenches@lists.re-wrenches.org');"
target="_blank">re-wrenches@lists.re-wrenches.org</a><br>
<b>Subject:</b> [RE-wrenches] Guarding
against live parts 690.7 (D)</span></p>
</div>
</div>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> </p>
<p class="MsoNormal" style="margin-bottom:12.0pt"><span
style="font-size:13.5pt;font-family:"Century
Schoolbook , serif""><br>
<br>
How is everyone handling 690.7 (D)</span></p>
<div>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><b><span
style="font-size:10.0pt;font-family:Times">Circuits
over 150 Volts to Ground. </span></b><span
style="font-size:10.0pt;font-family:Times">In
one- and two- family dwellings, live parts
in photovoltaic source circuits and
photovoltaic output circuits over 150 volts
to ground shall not be accessible to other
than qualified persons while energized. </span></p>
</div>
<p class="MsoNormal" style="margin-bottom:12.0pt"><span
style="font-size:13.5pt;font-family:"Century
Schoolbook , serif""><br>
<br>
If you have a commercial (non one or
two-family dwelling) are you screening your
ground mount arrays to keep people from
touching live conductors PV wires)?</span><br>
<br>
Thanks for your thoughts</p>
<pre>-- </pre>
<pre>Yours in Solardarity,</pre>
<pre> </pre>
<pre>Craig Gerald Buttke</pre>
<pre> </pre>
<pre>M:(715) 630-1227</pre>
<pre>O:(715) 630-6451</pre>
<pre>F:(715) 952-4501</pre>
<pre> </pre>
<pre>North Wind Renewable Energy, LLC</pre>
<pre>1626C W Pearl Street</pre>
<pre>Stevens Point, WI 54481</pre>
<pre> </pre>
<pre><a moz-do-not-send="true" href="http://www.northwindre.com" target="_blank">www.northwindre.com</a></pre>
<pre> </pre>
<pre>NABCEP Certified PV Installation Professional™</pre>
<pre>NABCEP Certified PV Technical Sales Professional™</pre>
<pre>State of WI: Master Electrician</pre>
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