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<DIV dir=ltr align=left><FONT color=#0000ff size=2 face=Arial><SPAN
class=500052519-18042011>Thanks Ken,</SPAN></FONT></DIV>
<DIV dir=ltr align=left><FONT color=#0000ff size=2 face=Arial><SPAN
class=500052519-18042011></SPAN></FONT> </DIV>
<DIV dir=ltr align=left><FONT color=#0000ff size=2 face=Arial><SPAN
class=500052519-18042011>I appreciate the information. But I am still not
feeling very confident about this.</SPAN></FONT></DIV>
<DIV dir=ltr align=left><FONT color=#0000ff size=2 face=Arial><SPAN
class=500052519-18042011></SPAN></FONT> </DIV>
<DIV dir=ltr align=left><FONT color=#0000ff size=2 face=Arial><SPAN
class=500052519-18042011>Yes, you can run a feeder with a EGC from one building
with a service to an outbuilding and bond that EGC to a GE at the outbuilding,
assuming that there is no service at that out building. If there is, then it is
not an outbuilding?</SPAN></FONT></DIV>
<DIV dir=ltr align=left><FONT color=#0000ff size=2 face=Arial><SPAN
class=500052519-18042011></SPAN></FONT> </DIV>
<DIV dir=ltr align=left><FONT color=#0000ff size=2 face=Arial><SPAN
class=500052519-18042011>My whole question boils down to that question: Is it OK
to connect together the grounding systems of two seperate dwellings where
each has it's own services? It is clear to me that I can't rely on the
allowance for bonding of multiple seperately derived systems in this case
because each building has it's own service and therefore cannot be considered as
a seperately derived system. So where does the Code speak to this.
</SPAN></FONT></DIV>
<DIV dir=ltr align=left><FONT color=#0000ff size=2 face=Arial><SPAN
class=500052519-18042011></SPAN></FONT> </DIV>
<DIV dir=ltr align=left><FONT color=#0000ff size=2 face=Arial><SPAN
class=500052519-18042011>My sense is that it is a big no-no, but can exactly
explain why.</SPAN></FONT></DIV>
<DIV dir=ltr align=left><FONT color=#0000ff size=2 face=Arial><SPAN
class=500052519-18042011></SPAN></FONT> </DIV>
<DIV dir=ltr align=left><FONT color=#0000ff size=2 face=Arial><SPAN
class=500052519-18042011>Anyone else out there agree or
disagree?</SPAN></FONT></DIV>
<DIV><SPAN lang=en-us><FONT size=2 face=Arial></FONT></SPAN> </DIV>
<DIV><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>
<DIV dir=ltr lang=en-us class=OutlookMessageHeader align=left>
<HR tabIndex=-1>
<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>Kent
Osterberg<BR><B>Sent:</B> Monday, April 18, 2011 12:09 PM<BR><B>To:</B>
RE-wrenches<BR><B>Subject:</B> Re: [RE-wrenches] Two Buildings, Two Services,
One Roof<BR></FONT><BR></DIV>
<DIV></DIV>Mark,<BR><BR>Separately derived is defined in article 100. Basically,
a separately derived system has no common conductors other than possibly
equipment ground.<BR><BR>By the definition in article 100 the feeder from the
house may be a separately derived system at the shop. It may not be if the house
and shop are feed off of the same transformer because the two systems would both
have a neutral connection at the transformer. <BR><BR>The ac output of a grid
interactive inverter with no batteries cannot be a separately derived system
because it connects to conductors on the premises.<BR><BR>There must be an
equipment ground with the inverter output wires (feeder between house and shop).
And the equipment ground needs to connect to the grounding system at both
buildings. That does make a connection between the two grounding systems - just
as happens whenever a feeder is run from a house to an outbuilding.<BR><BR>Kent
Osterberg<BR>Blue Mountain Solar </BODY></HTML>