<html><head></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">HI Matt,<div><br></div><div>I was just at a conference discussing this exact topic.</div><div><br></div><div>As usual Solar, at least smaller systems in reality can't get to a arc flash explosion potential, there just isn't enough watts there.</div><div>Now if you are talking about a megawatt system, thats a different story.</div><div><br></div><div><br></div><div>And yes that doesn't hold up if an inspector wants to go to the full NEC/NFPA code.</div><div><br></div><div>So we need to try and get the code updated to our industry, but in the mean time, as usual depends on the AHJ.</div><div><br></div><div>jay</div><div><br></div><div>peltz power </div><div><div><div>On Mar 23, 2010, at 4:36 PM, Matt Lafferty wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite">
<div>
<div><span class="921061523-23032010"><font size="2" face="Arial">Wrenches,</font></span></div>
<div><span class="921061523-23032010"><font size="2" face="Arial"></font></span> </div>
<div><span class="921061523-23032010"><font size="2" face="Arial">You know solar is
prime-time when it hits the mainstream "What's wrong with this picture" quiz! <a href="http://ecmweb.com/nec/whats_wrong_here/whats_wrong_020410/">http://ecmweb.com/nec/whats_wrong_here/whats_wrong_020410/</a></font></span></div>
<div><span class="921061523-23032010"><font size="2" face="Arial"></font></span> </div>
<div><span class="921061523-23032010"><font size="2" face="Arial">How are you dealing
with NEC 110.16? </font></span></div>
<div><span class="921061523-23032010"><font size="2" face="Arial"></font></span> </div>
<div><span class="921061523-23032010"><font size="2" face="Arial"><strong>2008 NEC
110.16 Flash Protection.<br></strong>Electrical equipment, such as switchboards,
panelboards, industrial control panels, meter socket enclosures, and motor
control centers, that are in other than dwelling occupancies, and are likely to
require examination, adjustment, servicing, or maintenance while energized shall
be field marked to warn qualified persons of potential electric arc flash
hazards. The marking shall be located so as to be clearly visible to qualified
persons before examination, adjustment, servicing, or maintenance of the
equipment.</font></span></div>
<div><font size="2" face="Arial"></font> </div>
<div><font size="2" face="Arial"><span class="921061523-23032010">I'm seeing all
flavors out there. Including the most common, pretending it doesn't exist. Back
in the day, relying on Qualified Persons Only and Danger! High Voltage! You
Can Die If You Touch It (or similar) was enough. </span></font><font size="2" face="Arial"><span class="921061523-23032010">Are you finding building inspectors
that are requiring the specific Arc Flash Hazard signage? In addition to, or in
lieu of, other signage?</span></font></div>
<div><font size="2" face="Arial"><span class="921061523-23032010"></span></font> </div>
<div><font size="2" face="Arial"><span class="921061523-23032010">Separate, but
related issue: Now that OSHA and NFPA 70e are dancing to the same song, has this
affected your operations? If so, in what way?</span></font></div>
<div><font size="2" face="Arial"><span class="921061523-23032010"></span></font> </div>
<div><span class="921061523-23032010"></span><font size="2" face="Arial"><span class="921061523-23032010">Keep it Safe and Sunny!</span></font></div>
<div><font size="2" face="Arial"><span class="921061523-23032010"></span></font> </div>
<div><font size="2" face="Arial"><span class="921061523-23032010">-Matt
Lafferty</span></font></div></div>
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