<html><body><span style="font-family:Verdana; color:#000000; font-size:10pt;"><div>Hey Charles, would you direct me to your reference "you’ll notice that foam does not work and should not be used."? I've found reference in this and other articles that states roughly 'like tarps, foam can not be relied upon to completely reduce array voltage to zero', but no where can I find the statement that states for the average Fire Fighter, a heavy foam is not a fast, safe and effective method of reducing array voltage in a PV array in an emergency situation - using equipment readily available. IMHO 20VDC is much preferable to 480VDC.</div><div><br></div><div>Thank You. db<br></div><div class="MsoNormal" style="font-size:12pt;"> </div><div></div><div><br></div><div><br>Dan Brown<br>Foxfire Energy Corp.<br>Renewable Energy Systems<br>(802)-483-2564<br><a href="http://www.Foxfire-Energy.com">www.Foxfire-Energy.com</a><br>NABCEP #092907-44</div><div></div><div><br><br></div>
<blockquote id="replyBlockquote" webmail="1" style="border-left: 2px solid blue; margin-left: 8px; padding-left: 8px; font-size:10pt; color:black; font-family:verdana;">
<div id="wmQuoteWrapper">
-------- Original Message --------<br>
Subject: Re: [RE-wrenches] Fire fighters safety class<br>
From: Charles Picard <<a href="mailto:cpicard@solarcity.com">cpicard@solarcity.com</a>><br>
Date: Tue, September 20, 2016 1:27 pm<br>
To: "<a href="mailto:palumbo131m@gmail.com">palumbo131m@gmail.com</a>" <<a href="mailto:palumbo131m@gmail.com">palumbo131m@gmail.com</a>><br>
Cc: "<a href="mailto:re-wrenches@lists.re-wrenches.org">re-wrenches@lists.re-wrenches.org</a>"<br>
<<a href="mailto:re-wrenches@lists.re-wrenches.org">re-wrenches@lists.re-wrenches.org</a>><br>
<br>
<style>
#wmQuoteWrapper /* Font Definitions */ @font-face {font-family:Calibri; panose-1:2 15 5 2 2 2 4 3 2 4;}
#wmQuoteWrapper /* Style Definitions */ p.MsoNormal, #wmQuoteWrapper li.MsoNormal, #wmQuoteWrapper div.MsoNormal {margin:0in; margin-bottom:.0001pt; font-size:11.0pt; font-family:"Calibri","sans-serif";}
#wmQuoteWrapper a:link, #wmQuoteWrapper span.MsoHyperlink {mso-style-priority:99; color:blue; text-decoration:underline;}
#wmQuoteWrapper a:visited, #wmQuoteWrapper span.MsoHyperlinkFollowed {mso-style-priority:99; color:purple; text-decoration:underline;}
#wmQuoteWrapper span.EmailStyle17 {mso-style-type:personal-compose; font-family:"Calibri","sans-serif"; color:windowtext;}
#wmQuoteWrapper .MsoChpDefault {mso-style-type:export-only; font-family:"Calibri","sans-serif";}
#wmQuoteWrapper @page WordSection1 {size:8.5in 11.0in; margin:1.0in 1.0in 1.0in 1.0in;}
#wmQuoteWrapper div.WordSection1 {page:WordSection1;}
</style> <div class="WordSection1"> <div class="MsoNormal" style="font-size:12pt;">Hi Dave,<o:p></o:p></div> <div class="MsoNormal" style="font-size:12pt;"><o:p> </o:p></div> <div class="MsoNormal" style="font-size:12pt;">These are some great questions you’re asking, and you’ve prompted some interesting responses. I’ve been partnered up with a career firefighter for the past 2yrs teaching this subject, and have a few thoughts for you:<o:p></o:p></div> <div class="MsoNormal" style="font-size:12pt;"><o:p> </o:p></div> <div class="MsoNormal" style="font-size:12pt;">Review the NFPA’s recommended best practices for interactions with PV, you can find that free training here <a target="_blank" href="https://lms.ulknowledgeservices.com/catalog/display.resource.aspx?resourceid=352901"> https://lms.ulknowledgeservices.com/catalog/display.resource.aspx?resourceid=352901</a><o:p></o:p></div> <div class="MsoNormal" style="font-size:12pt;"><o:p> </o:p></div> <div class="MsoNormal" style="font-size:12pt;">The training is based on this research: <a target="_blank" href="https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&cad=rja&uact=8&ved=0ahUKEwi_67iyt57PAhWDTSYKHd57DREQFggjMAA&url=http%3A%2F%2Fwww.ul.com%2Fglobal%2Fdocuments%2Fofferings%2Findustries%2Fbuildingmaterials%2Ffireservice%2FPV-FF_SafetyFinalReport.pdf&usg=AFQjCNEHXYPQ5_R0p-_QDW8fRvEYFx1xUg&sig2=W0zmY8dwh3D2EXk1XucXMA"> https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&cad=rja&uact=8&ved=0ahUKEwi_67iyt57PAhWDTSYKHd57DREQFggjMAA&url=http%3A%2F%2Fwww.ul.com%2Fglobal%2Fdocuments%2Fofferings%2Findustries%2Fbuildingmaterials%2Ffireservice%2FPV-FF_SafetyFinalReport.pdf&usg=AFQjCNEHXYPQ5_R0p-_QDW8fRvEYFx1xUg&sig2=W0zmY8dwh3D2EXk1XucXMA</a><o:p></o:p></div> <div class="MsoNormal" style="font-size:12pt;"><o:p> </o:p></div> <div class="MsoNormal" style="font-size:12pt;">That will get you headed in the right direction. As my colleague says, you can still “Put the wet stuff on the red stuff” but you need to understand the rules you’re playing by. This study does address how arrays may be de-energized, you’ll notice that foam does not work and should not be used.<o:p></o:p></div> <div class="MsoNormal" style="font-size:12pt;"><o:p> </o:p></div> <div class="MsoNormal" style="font-size:12pt;">You’ll likely find the level of understanding on Li-Ion technology is woefully lacking, even amongst PV industry professionals. If you’re going to tackle the subject, I recommend doing a little research on the types of construction and chemistries used. Too often folks lead their presentations with exploding hoverboards or stories about the FAA ban. In reality these are apples to oranges comparisons. For the Powerwall specifically, they have published an Emergency Response Guide that is publically available. They have also released results of a burn-test study that is very informative.<o:p></o:p></div> <div class="MsoNormal" style="font-size:12pt;"><o:p> </o:p></div> <div class="MsoNormal" style="font-size:12pt;">There are a few YouTube videos floating around as well. Captain Matt Paiss has some publicly available, and recently collaborated with the IAFF and IREC to create some online training content that looks very good.<o:p></o:p></div> <div class="MsoNormal" style="font-size:12pt;"><o:p> </o:p></div> <div class="MsoNormal" style="font-size:12pt;">Feel free to contact me directly with any questions.<o:p></o:p></div> <div class="MsoNormal" style="font-size:12pt;"><o:p> </o:p></div> <div class="MsoNormal" style="font-size:12pt;"><o:p> </o:p></div> <div> <div class="MsoNormal" style="font-size:12pt;"><b><span style="font-family:"Arial","sans-serif";color:#00833F">Charles Picard</span></b><span style="font-size:9.0pt;font-family:"Arial","sans-serif""> <br> <span style="color:#777777">Sr. Compliance Engineer |</span><span style="color:#00833F"> </span><a target="_blank" href="http://www.solarcity.com"><span style="color:#00833F;text-decoration:none">SolarCity</span></a> <br> <span style="color:#00833F">-----------------------------------------------------------------------</span><br> <span style="color:#777777">t: 518.380.6628</span><br> <span style="color:#777777">m: 508.965.0144</span><br> <br> </span><span style="font-size:6.0pt;font-family:"Arial","sans-serif";color:#777777">RI A-004714 REPC-119, CA CSLB 888104, MA HIC 168572/EL-1136MR. </span><span style="font-size:9.0pt;font-family:"Arial","sans-serif""><a target="_blank" href="http://www.solarcity.com/company/contractor-licenses"><span style="font-size:6.0pt;color:#777777">Click here</span></a> </span><span style="font-size:6.0pt;font-family:"Arial","sans-serif";color:#777777">to view our complete list of license numbers by state.</span><span style="font-size:9.0pt;font-family:"Arial","sans-serif""> <o:p></o:p></span></div> </div> <div class="MsoNormal" style="font-size:12pt;"><span style="font-size:9.0pt;font-family:"Arial","sans-serif""> </span><o:p></o:p></div> </div> <hr>_______________________________________________<br>
List sponsored by Redwood Alliance<br>
<br>
List Address: <a href="mailto:RE-wrenches@lists.re-wrenches.org">RE-wrenches@lists.re-wrenches.org</a><br>
<br>
Change listserver email address & settings:<br>
<a href="http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org">http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org</a><br>
<br>
List-Archive: <a href="http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html">http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html</a><br>
<br>
List rules & etiquette:<br>
<a href="http://www.re-wrenches.org/etiquette.htm">www.re-wrenches.org/etiquette.htm</a><br>
<br>
Check out or update participant bios:<br>
<a href="http://www.members.re-wrenches.org">www.members.re-wrenches.org</a><br>
<br>
</div>
</blockquote></span></body></html>