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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"
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<div class="WordSection1">
<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">mstoker@co.slo.ca.us</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""><img
id="_x0000_i1034"
src="cid:part2.07080907.08070607@solarray.com"
alt="Gradient Cap_mini" height="28" width="64"><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">re-wrenches@lists.re-wrenches.org</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:part8.01020808.04050804@solarray.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">re-wrenches@lists.re-wrenches.org</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:part8.01020808.04050804@solarray.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:part8.01020808.04050804@solarray.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"
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">re-wrenches-bounces@lists.re-wrenches.org</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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