<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto"><div><p><span style="-webkit-text-size-adjust: auto; background-color: rgba(255, 255, 255, 0);">From UL:</span></p><p><span style="-webkit-text-size-adjust: auto; background-color: rgba(255, 255, 255, 0);">"Both PV wire and USE-2 wire use thermoset insulation and jacket typically made of XLPE or EPCV. Nevertheless, other thermoset materials such as CP over EP, CP over EPCV, SBR/IIR/NR and EP are also available. PV wire may also be constructed similar to Type UF but using an additional 15 mils more of 90ºC wet and dry rated integral PVC insulation and jacket."</span></p><p><span style="-webkit-text-size-adjust: auto; background-color: rgba(255, 255, 255, 0);"><br></span></p><div style="-webkit-text-size-adjust: auto;"><br></div><br><span style="-webkit-text-size-adjust: auto;">Brian</span></div><div style="-webkit-text-size-adjust: auto;"><br>On May 15, 2014, at 8:30 PM, Mick Abraham <<a href="mailto:mick@abrahamsolar.com">mick@abrahamsolar.com</a>> wrote:<br><br></div><blockquote type="cite" style="-webkit-text-size-adjust: auto;"><div><div dir="ltr">Hello, Mechanix~<div><br></div><div>I've recently learned there are two flavors of 600v "photovoltaic wire". I thought all "PV wire" must be normally insulated plus jacketed with an outer PVC layer but now I see some material marked as "photovoltaic wire" but it only has a single layer of XLPE slightly thicker than the insulation on good ol' USE-2.</div>
<div><br></div><div>Can any of you address the practical difference between the double jacket and single jacket versions of "PV wire"? Specifically, would the single jacket version still be appropriate for ungrounded installations? </div>
<div><br></div><div>Thanks all around. The Wrench List is the bomb!</div><div><br clear="all"><div>Mick Abraham, Proprietor<br><a href="http://www.abrahamsolar.com" target="_blank">www.abrahamsolar.com</a><br><br>Voice: 970-731-4675</div>
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