<div dir="auto">Drake I think you’re right and they’re wrong, as long as the 200A bus is protected by a 200A breaker, and as long as the Utility meter and utility conductors remain 400</div><div dir="auto">David</div><div dir="auto"><br></div><div dir="auto"><br></div><div dir="auto"><br></div><div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Thu, Oct 12, 2023 at 5:06 PM Drake Chamberlin via RE-wrenches <<a href="mailto:re-wrenches@lists.re-wrenches.org">re-wrenches@lists.re-wrenches.org</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-style:solid;padding-left:1ex;border-left-color:rgb(204,204,204)"><div style="font-size:10pt;font-family:Verdana,Geneva,sans-serif">
<div style="margin:0px;padding:0px;font-family:monospace"><span style="font-size:12pt;font-family:monospace">We have a design where the conductors will come out of a 400 A meter base to a junction box. Splices in the box will allow for the PV to feed the meter. </span></div>
<div style="margin:0px;padding:0px;font-family:monospace"> </div>
<div style="margin:0px;padding:0px;font-family:monospace"><span style="font-size:12pt;font-family:monospace">A maximum of 312 Amps can come from the inverters to feed the grid. </span><br><br><span style="font-size:12pt;font-family:monospace">The loads on the existing main service are significantly less than 200A. The service is rated at 200 A, 3 phase delta. </span><br><br><span style="font-size:12pt;font-family:monospace"><img src="cid:18b267011bef9c3af481" style="width:306px;max-width:100%"></span><br><br>
<div style="font-family:monospace"> </div>
<div style="font-family:monospace"><span style="font-size:12pt;font-family:monospace">The conductors from the meter would be rated at 400 A to the splice, as would the conductors to the photovoltaic system. The conductors to the existing service would be downsized to 200 A. </span></div>
<div id="m_5312231241329160836signature" style="font-family:monospace"><br>
<div style="margin:0px;padding:0px;font-family:monospace"><span style="font-size:12pt;font-family:monospace">We were told that the bus bar rating of the service must also be 400 A, even though the output of the PV does not feed through that box. Is there a rule that says this? What would be the logic?</span></div>
<div style="margin:0px;padding:0px;font-family:monospace"> </div>
<div style="margin:0px;padding:0px;font-family:monospace"><span style="font-size:12pt;font-family:monospace">Thank you,</span></div>
<div style="margin:0px;padding:0px;font-family:monospace"> </div>
<div style="margin:0px;padding:0px;font-family:monospace"><span style="font-size:12pt;font-family:monospace">Drake </span></div>
<div style="margin:0px;padding:0px;font-family:monospace"> </div>
<div style="margin:0px;padding:0px;font-family:monospace">
<p style="font-family:monospace"><em style="font-family:monospace">Drake Chamberlin</em></p>
<p style="font-family:monospace"><em style="font-family:monospace">Athens Electric LLC</em></p>
<p style="font-family:monospace"><em style="font-family:monospace">Ohio Electrical Contractor’s License 44810</em></p>
<p style="font-family:monospace"><em style="font-family:monospace">NABCEP Certified PV Installation Professional</em></p>
</div>
</div>
</div>
</div>
_______________________________________________<br>
List sponsored by Redwood Alliance<br>
<br>
Pay optional member dues here: <a href="http://re-wrenches.org" rel="noreferrer" target="_blank">http://re-wrenches.org</a><br>
<br>
List Address: <a href="mailto:RE-wrenches@lists.re-wrenches.org" target="_blank">RE-wrenches@lists.re-wrenches.org</a><br>
<br>
Change listserver email address & settings:<br>
<a href="http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org" rel="noreferrer" target="_blank">http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org</a><br>
<br>
There are two list archives for searching. When one doesn't work, try the other:<br>
<a href="https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/" rel="noreferrer" target="_blank">https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/</a><br>
<a href="http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org" rel="noreferrer" target="_blank">http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org</a><br>
<br>
List rules & etiquette:<br>
<a href="http://www.re-wrenches.org/etiquette.htm" rel="noreferrer" target="_blank">http://www.re-wrenches.org/etiquette.htm</a><br>
<br>
Check out or update participant bios:<br>
<a href="http://www.members.re-wrenches.org" rel="noreferrer" target="_blank">http://www.members.re-wrenches.org</a><br>
<br>
</blockquote></div></div>