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<TITLE>Re: [RE-wrenches] module / panel</TITLE>
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<FONT FACE="Calibri, Verdana, Helvetica, Arial"><SPAN STYLE='font-size:11pt'>People in and out of the industry misuse the term PV panel all the time. The NEC is pretty clear that the basic building block for a PV system is a module, the complete unit. Assemble some of these together & now you have a panel. (This is less common now that we have 250 watt modules and not 50 watt modules.) An array is defined in the NEC as a mechanically integrated unit; I tend to think of an array as all of the modules on site. They added a definition for a subarray in the 2011 NEC; this is an electrical subset of an array. <BR>
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On 2/8/11 4:49 PM, "benn kilburn" <<a href="benn@daystarsolar.ca">benn@daystarsolar.ca</a>> wrote:<BR>
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</SPAN></FONT><BLOCKQUOTE><FONT SIZE="2"><FONT FACE="Tahoma, Verdana, Helvetica, Arial"><SPAN STYLE='font-size:10pt'>Wrenchers,<BR>
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Which term do you to describe a single framed unit with either a j-box or two wire leads on the back, module or panel? <BR>
Which term do you believe to be correct and why?<BR>
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My interpretation is that a single framed unit is a module. Any number of modules attached to a single detached 'rack' is a panel, and a group of panels with the same orientation or mounting location/type is an array.<BR>
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If you agree with my interpretation, what are your thoughts on the widespread use of the term 'panel' to describe a module.<BR>
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thanks,<BR>
benn<BR>
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