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<DIV dir=ltr align=left><SPAN class=468365813-14092010><FONT color=#0000ff
size=2 face=Arial>I believe the AC GEC runs from; the point where the ungrounded
current carrying conductor is bonded to the enclosure of the service enterance
equipment; to the connection to the ground electrode system. Conductors that run
from the service enterance equipment, thru the premis to the Enphase are bonding
jumpers that are not required to be continuous.</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=468365813-14092010><FONT color=#0000ff
size=2 face=Arial></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN lang=en-us><FONT size=2 face=Arial>Mark
Frye</FONT></SPAN> <BR><SPAN lang=en-us><FONT size=2 face=Arial>Berkeley Solar
Electric Systems</FONT></SPAN> <BR><SPAN lang=en-us><FONT size=2 face=Arial>303
Redbud Way</FONT></SPAN> <BR><SPAN lang=en-us><FONT size=2 face=Arial>Nevada
City, CA 95959</FONT></SPAN> <BR><SPAN lang=en-us><FONT size=2
face=Arial>(530) 401-8024</FONT></SPAN> <BR><SPAN lang=en-us></SPAN><A
href="http://www.berkeleysolar.com/"><SPAN lang=en-us><U><FONT color=#0000ff
size=2 face=Arial>www.berkeleysolar.com</FONT></U></SPAN></A><SPAN
lang=en-us><FONT size=2 face=Arial> </FONT></SPAN> </DIV>
<DIV> </DIV><BR>
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<FONT size=2 face=Tahoma><B>From:</B> re-wrenches-bounces@lists.re-wrenches.org
[mailto:re-wrenches-bounces@lists.re-wrenches.org] <B>On Behalf Of </B>William
Miller<BR><B>Sent:</B> Monday, September 13, 2010 9:46 PM<BR><B>To:</B>
RE-wrenches<BR><B>Subject:</B> [RE-wrenches] GEC for Enphase
inverters<BR></FONT><BR></DIV>
<DIV></DIV>Friends:<BR><BR>According to the 2005 NEC 250.64(C), the GEC for an
AC system needs to be continuous without splices unless they are
irreversible. I am not clear where this conductor starts and ends.
Is it from the ground buss in a sub-panel to the disconnect switch on the roof,
or to each inverter?<BR><BR>Also, non-reversible splices need to be listed for
use in grounding systems. Any suggestions on make and model of splices so
listed?<BR><BR>Any advise from those more experienced is much
appreciated.<BR><BR>William Miller<BR><BR><X-SIGSEP>
<P></X-SIGSEP><FONT size=3><U>Please note new e-mail address and
domain:<BR><BR></U>William Miller <BR>Miller Solar<BR>Voice
:805-438-5600<BR>email: william@millersolar.com<BR><A
href="http://millersolar.com/"
eudora="autourl">http://millersolar.com<BR></A>License No.
C-10-773985<BR></FONT></P></BODY></HTML>