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This seems to be an example of the utility company trying to make
things unnecessarily difficult. Firstly, it is perfectly safe to
remove the kWh meter while it is energized, the utility company does
it all the time. Secondly, a single disconnect on the utility side,
which may be required anyway, will shut down a utility interactive
inverter. That's why the NEC exempts interactive inverters from from
the requirement of having a a breaker hold down clamp. One question
you have to ask though is: who owns the meter? If it is the utility
company, they can probably dictate the requirements. If the customer
owns the production meter, then the utility company should have no
say about it.<br>
<pre class="moz-signature" cols="72">Kent Osterberg
Blue Mountain Solar, Inc.
<a class="moz-txt-link-abbreviated" href="http://www.bluemountainsolar.com">www.bluemountainsolar.com</a>
t: 541-568-4882</pre>
<br>
On 1/24/2012 6:52 AM, mac Lewis wrote:
<blockquote
cite="mid:CAOABG4_JU8=POyGA80kLcs0MwgAFQPmEv_OvCuQtVgP4iVL=iA@mail.gmail.com"
type="cite">Here in Xcel territory in Colorado, we are required to
cold-sequence the solar production meter. These disconnects have
to be utility accessible and adjacent to the production meter
itself. I believe this is only a utility requirement, not a code
requirement. This seems to be unneeded redundancy, because the
inverter side will shut down, once the line side is deenergized.
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<br>
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<div>Mac Lewis<br>
<br>
<div class="gmail_quote">On Tue, Jan 24, 2012 at 7:14 AM, Allen
Frishman <span dir="ltr"><<a moz-do-not-send="true"
href="mailto:amfrish@aeonsolar.com">amfrish@aeonsolar.com</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">
<div style="word-wrap:break-word">Wrencher's,
<div>I am having a good debate with a fellow solar
installer regarding an NEC requirement to isolate a
meter between two disconnecting means adjacent to the
meter when grid connecting via a tap. My thought is
that if we have a load center with breakers to combine
multiple inverters on the roof, the PV meter can be
located in the basement between the roof load center and
a fused disconnect adjacent to the tap with no need for
a disconnect next to the meter on the load center side
of the meter. Can anyone reference a section in the
code that requires a disconnecting means adjacent to
both sides of the meter? The meter I am referencing
simply records the total kWh's of the solar system as
required by the State incentive program.</div>
<div><br>
</div>
<div>All feedback is appreciated.<br>
<div>
<span
style="text-indent:0px;letter-spacing:normal;font-variant:normal;text-align:auto;font-style:normal;font-weight:normal;line-height:normal;border-collapse:separate;text-transform:none;font-size:medium;white-space:normal;font-family:Helvetica;word-spacing:0px">
<div>
<p class="MsoNormal"><i><span
style="font-size:10.5pt">Al Frishman</span></i><span
style="font-size:13.5pt"><br>
</span><span
style="font-size:13.5pt;color:rgb(3,1,0)">Aeon</span><span
style="font-size:13.5pt;color:rgb(255,151,0)">Solar</span><span
style="font-size:13.5pt"></span></p>
<p class="MsoNormal"><i><span
style="font-size:10.5pt"><a
moz-do-not-send="true"
href="tel:%28917%29%20699-6641"
value="+19176996641" target="_blank">(917)
699-6641</a> - cell</span></i><span
style="font-size:10.5pt"><br>
</span><i><span style="font-size:10.5pt"><a
moz-do-not-send="true"
href="tel:%28888%29%20460-2867"
value="+18884602867" target="_blank">(888)
460-2867</a></span></i><span
style="font-size:10.5pt"><br>
</span><i><span style="font-size:10.5pt"><a
moz-do-not-send="true"
href="http://www.aeonsolar.com/"
target="_blank">www.aeonsolar.com</a></span></i></p>
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Mac Lewis<br>
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