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<font face="Verdana">Keith,<br>
<br>
The whole grounding issue has been very contentious, confounding, and
confusing. The introduction of the changes with the 2008 NEC seems to
have complicated things further.<br>
<br>
Also, just a general comment; in general (there will be exceptions for
larger systems, depending on electrical configuration), this code
section applies equally to all PV inverters. There should be no
difference with an Enphase installation and a traditional string
installation.<br>
<br>
</font><font face="Verdana">What version of code are you referencing?
2005 and 2008 differ slightly. I'd like to get a consensus on all of
these grounding issues. It's too late for the 2011 code, but maybe we
can clear this up with the 2014 code.<br>
<br>
BTW, the explanatory note after paragraph 690.47(C)(8) in the 2008
handbook offers some clarification.<br>
<br>
I'm anxious to get John W. and Bill B.'s opinion on this.<br>
</font>
<pre class="moz-signature" cols="72">See Ya!
Marv
Enphase Energy
707 763-4784 x7016</pre>
<br>
<br>
Keith Cronin wrote:
<blockquote cite="mid:155077.35488.qm@web46116.mail.sp1.yahoo.com"
type="cite">
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<div>Hello<br>
<br>
A discussion came up today about 690.47(C)(1)+(2) in regards to using
the Enphase products and the applicability of needing a separate ground
rod for the DC?<br>
<br>
Anyone get any feedback from their colleagues or inspectors regarding
this and how they approached this?<br>
<br>
The discussion also swirled around them both being bonded regardless,
so the question of necessity was in question.<br>
<br>
Thanks<br>
<br>
Keith<br>
</div>
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