All,<br>Our AHJ's started making us take the Deltas out a couple of years ago, as they are not listed equipment. We kept ordering them for awhile, thinking they were necessary, cheap insurance, intending to return after the inspection and put 'em in. We now have a large, dusty stack of uninstalled LA's on a shelf in the shop.....<br>
-Kelly<br><br>Kelly Keilwitz, P.E.<br>Whidbey Sun & Wind<br><a href="mailto:kelly@whidbeysunwind.com">kelly@whidbeysunwind.com</a><br>360-678-7131<br>NABCEP Certified PV Installer<br><br><div class="gmail_quote">On Tue, Sep 14, 2010 at 8:39 AM, August Goers <span dir="ltr"><<a href="mailto:august@luminalt.com">august@luminalt.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;"><div>All -</div>
<div></div>
<div>I guess my thought is a little off topic, but are lightning arrestors even worth using at all? My logic has always been that if lightning does indeed strike that it's likely going to blow the arrestor and and inverter. We don't have much of a lightning issue issue in the Bay Area so I don't have any direct experience.</div>
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<div>Best,</div>
<div></div>
<div>August<br><br></div><div><div></div><div class="h5">
<div class="gmail_quote">On Tue, Sep 14, 2010 at 6:29 AM, Kristopher Schmid <span dir="ltr"><<a href="mailto:solman@legacysolar.com" target="_blank">solman@legacysolar.com</a>></span> wrote:<br>
<blockquote style="border-left: 1px solid rgb(204, 204, 204); margin: 0px 0px 0px 0.8ex; padding-left: 1ex;" class="gmail_quote">It is quite ironic that just a week after I posted a question to the group<br>on testing the integrity of lightning arrestors, I had one apparently faulty<br>
out of the box. The manifest of this was interesting: when the AC LA<br>(LA302R) was connected in parallel on the AC input to a SB3000 inverter,<br>there was 125vac neutral to L1, 125vac neutral to L2, and 1Vac L1 to L2.<br>
SMA tech support suggested the LA as the issue and sure enough, it was.<br>Attempting to test good and faulty arrestors with an ohmmeter gave the same<br>result - off scale open.<br><br>Any thoughts or comments from the group?<br>
<br>Kris Schmid<br><br>Legacy Solar<br>864 Clam Falls Trail<br>Frederic, WI 54837<br>715-653-4295<br><a href="mailto:solman@legacysolar.com" target="_blank">solman@legacysolar.com</a><br><a href="http://www.legacysolar.com/" target="_blank">www.legacysolar.com</a><br>
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<br></blockquote></div><br><br clear="all"><br></div></div>-- <br>August Goers<br>VP, Engineering<br><br>Luminalt Energy Corporation<br>1320 Potrero Avenue<br>San Francisco, CA 94110<br>O: 415.641.4000<br>M: 415.559.1525<br>
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