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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>All,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Since Mr. Brearley called me out, I guess I need to jump in. UL 1703 has been substantially changed as to how modules are fire rated. Basically, modules will no longer receive a direct fire rating unless they are installed in a fire-rated mounting system. I current module with a Class C or Class A rating will no longer have that rating. The mounting system will carry the fire rating. Modules will have specific “types” based on their construction. This way a rack manufacturer can get a fire rating on modules of a particular module construction type and not have to rerate their rack with every module that has that same construction.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>All these changes in the UL1703 standard are going to require education so that fire officials and building code enforcement officials understand how to enforce the new building code rules in light of the new version of the UL standard.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Bill.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></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"'>From:</span></b><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"'> re-wrenches-bounces@lists.re-wrenches.org [mailto:re-wrenches-bounces@lists.re-wrenches.org] <b>On Behalf Of </b>David Brearley<br><b>Sent:</b> Monday, January 06, 2014 11:34 AM<br><b>To:</b> RE-wrenches<br><b>Subject:</b> Re: [RE-wrenches] CA Fire code<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Lars,<o:p></o:p></p><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>Back in October, UL was in the process of finalizing a new fire test method for for roof-mounted PV systems. This new test method will bridge the gap between the fire tests for roofing coverings (UL 790) and those found in UL 1703, the standard for flat-plate PV modules. Long story short, Class C PV modules installed over a Class A roofing system will result in a Class A fire-rated roof-mounted PV system.<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>At least that's how I understood the presentation delivered by Christopher Flueckinger from UL during the "Fire Safety" session at SPI in Chicago. I'm sure Bill Brooks will chime in shortly and provide more clarity.<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>Best regards,<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p><div><div><div><div><p class=MsoNormal><span style='font-size:13.5pt;font-family:"Helvetica","sans-serif";color:black'>David Brearley<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:13.5pt;font-family:"Helvetica","sans-serif";color:black'>Senior Technical Editor,<span class=apple-converted-space> </span><i>SolarPro</i><span class=apple-converted-space> </span>magazine<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:13.5pt;font-family:"Helvetica","sans-serif";color:black'>NABCEP Certified PV Installation Professional<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:13.5pt;font-family:"Helvetica","sans-serif";color:black'><a href="mailto:david.brearley@solarprofessional.com">david.brearley@solarprofessional.com</a><o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:13.5pt;font-family:"Helvetica","sans-serif";color:black'>Direct: 541.261.6545<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:13.5pt;font-family:"Helvetica","sans-serif";color:black'><o:p> </o:p></span></p></div></div><p class=MsoNormal><span style='font-size:13.5pt;font-family:"Helvetica","sans-serif";color:black'><o:p> </o:p></span></p></div><p class=MsoNormal><span style='font-size:13.5pt;font-family:"Helvetica","sans-serif";color:black'><br><br></span><o:p></o:p></p></div><p class=MsoNormal style='margin-bottom:12.0pt'><o:p> </o:p></p></div></div>
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