<p dir="ltr">Wrenches, <br>
We have had AFCI issues with also no problems to be found, in some cases very early am or late pm and we fould that its comming from AC Compressor contactors on the same building, also arc welders will cause a trip<br>
Jerry</p>
<div class="gmail_quote">On Mar 23, 2016 11:08 AM, "Drake" <<a href="mailto:drake.chamberlin@redwoodalliance.org">drake.chamberlin@redwoodalliance.org</a>> wrote:<br type="attribution"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div>
Hello Wrenches, <br><br>
We have a project with an array on a large metal roof. The AFCI has been
tripping. Investigating the system, there is no evidence of any arcing:
the wiring and connections are all very tight. <br><br>
SMA tech support says it is likely that the nuisance tripping comes from
electrical noise getting picked up by the large metal roof. <br><br>
What has been your overall experience with nuisance tripping of arc fault
protection? What were the suspected causes? What was the
solution?<br><br>
Thanks,<br><br>
Drake <br><br>
<a name="-4145565897745092831__MailAutoSig"></a>Drake Chamberlin<br>
<i>Athens Electric LLC<br>
OH License 44810<br>
CO License 3773<br>
NABCEP Certified Solar PV <br>
<a href="tel:740-448-7328" value="+17404487328" target="_blank">740-448-7328</a><br>
</i><a href="http://athens-electric.com/" target="_blank">http://athens-electric.com/</a>
<br><br>
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