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<div class=Section1>
<p class=MsoNormal><span style='color:#1F497D'>Actually I don’t have a link, I
just have a pdf.<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<div>
<p class=MsoNormal><span style='color:#595959'>-Chris Anderson<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:9.0pt;color:#595959'> Chief
Technology Officer<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:9.0pt;color:#595959'> Resources
Group <o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:9.0pt;color:#595959'> C: 603-732-2411<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:9.0pt;color:#595959'> Borrego Solar
Systems<o:p></o:p></span></p>
</div>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<div>
<div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'>
<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>
re-wrenches-bounces@lists.re-wrenches.org
[mailto:re-wrenches-bounces@lists.re-wrenches.org] <b>On Behalf Of </b>Glenn
Burt<br>
<b>Sent:</b> Wednesday, September 16, 2009 9:01 PM<br>
<b>To:</b> 'RE-wrenches'<br>
<b>Subject:</b> Re: [RE-wrenches] Insulation testing<o:p></o:p></span></p>
</div>
</div>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:blue'>Seems like it would be useful if you could simply post the link
here - it is relevant & I'd like to eyeball the document as well!</span><span
style='font-size:12.0pt;font-family:"Times New Roman","serif"'><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'> <o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:blue'>-Glenn Burt</span><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:blue'>Technical Specialist</span><span style='font-size:12.0pt;
font-family:"Times New Roman","serif"'><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:blue'>Alteris Renewables, Inc.</span><span style='font-size:12.0pt;
font-family:"Times New Roman","serif"'><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'><o:p> </o:p></span></p>
<div class=MsoNormal align=center style='text-align:center'><span
style='font-size:12.0pt;font-family:"Times New Roman","serif"'>
<hr size=2 width="100%" align=center>
</span></div>
<p class=MsoNormal style='margin-bottom:12.0pt'><b><span style='font-size:10.0pt;
font-family:"Tahoma","sans-serif"'>From:</span></b><span style='font-size:10.0pt;
font-family:"Tahoma","sans-serif"'> re-wrenches-bounces@lists.re-wrenches.org
[mailto:re-wrenches-bounces@lists.re-wrenches.org] <b>On Behalf Of </b>Chris
Anderson<br>
<b>Sent:</b> Wednesday, September 16, 2009 2:37 PM<br>
<b>To:</b> RE-wrenches<br>
<b>Subject:</b> Re: [RE-wrenches] Insulation testing</span><span
style='font-size:12.0pt;font-family:"Times New Roman","serif"'><o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>I also have a link to a great
FLUKE document on the insulation testing. (meggering wires)<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>I can send it to you offline if
you would like a copy.<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<div>
<p class=MsoNormal><span style='color:#595959'>-Chris Anderson<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:9.0pt;color:#595959'> Chief
Technology Officer<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:9.0pt;color:#595959'> Resources
Group <o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:9.0pt;color:#595959'> C:
603-732-2411<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:9.0pt;color:#595959'> Borrego
Solar Systems<o:p></o:p></span></p>
</div>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<div>
<div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'>
<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>
re-wrenches-bounces@lists.re-wrenches.org
[mailto:re-wrenches-bounces@lists.re-wrenches.org] <b>On Behalf Of </b>Chris
Anderson<br>
<b>Sent:</b> Wednesday, September 16, 2009 2:19 PM<br>
<b>To:</b> RE-wrenches<br>
<b>Subject:</b> Re: [RE-wrenches] Insulation testing<o:p></o:p></span></p>
</div>
</div>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><span style='color:#1F497D'>I would like to put forward our
commissioning test procedures with regard to voltage and insulation testing for
comment and to share if others are trying to tighten up their commissioning
procedures. I would love to hear Bill’s feedback and any input others might have
into our process and areas where we might be exposed.<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>Thanks in advance for your
comments.<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal align=center style='text-align:center;vertical-align:middle'><b><u><span
style='font-size:12.0pt'>Sequence and Procedures for <o:p></o:p></span></u></b></p>
<p class=MsoNormal align=center style='text-align:center;vertical-align:middle'><b><u><span
style='font-size:12.0pt'>Quality Assurance Testing and System Commissioning <o:p></o:p></span></u></b></p>
<p class=MsoNormal align=center style='text-align:center;vertical-align:middle'><u><span
style='font-size:10.0pt'><o:p><span style='text-decoration:none'> </span></o:p></span></u></p>
<p class=MsoNormal style='margin-left:9.0pt;vertical-align:middle'><b><span
style='font-size:10.0pt'>Quality Assurance Testing <o:p></o:p></span></b></p>
<p class=MsoNormal style='margin-left:.75in;text-indent:-.25in;vertical-align:
middle'><span style='font-size:10.0pt;font-family:"Courier New"'>o</span><span
style='font-size:7.0pt;font-family:"Times New Roman","serif"'>
</span><span style='font-size:10.0pt'>Source Circuit Testing - Voltage and
continuity to ground of all strings<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:81.0pt;text-indent:-.25in;vertical-align:
middle'><span style='font-size:10.0pt;font-family:Symbol'>·</span><span
style='font-size:7.0pt;font-family:"Times New Roman","serif"'>
</span><span style='font-size:10.0pt'>Test conditions:<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:1.5in;text-indent:-.25in;vertical-align:
middle'><span style='font-size:10.0pt;font-family:Wingdings'>§</span><span
style='font-size:7.0pt;font-family:"Times New Roman","serif"'> </span><span
style='font-size:10.0pt'>Testing to be done at the combiner boxes<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:1.5in;text-indent:-.25in;vertical-align:
middle'><span style='font-size:10.0pt;font-family:Wingdings'>§</span><span
style='font-size:7.0pt;font-family:"Times New Roman","serif"'> </span><span
style='font-size:10.0pt'>Modules are connected to the home runs<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:1.5in;text-indent:-.25in;vertical-align:
middle'><span style='font-size:10.0pt;font-family:Wingdings'>§</span><span
style='font-size:7.0pt;font-family:"Times New Roman","serif"'> </span><span
style='font-size:10.0pt'>Positives are landed on the fuse block, but fuses are
not yet installed in the CB<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:1.5in;text-indent:-.25in;vertical-align:
middle'><span style='font-size:10.0pt;font-family:Wingdings'>§</span><span
style='font-size:7.0pt;font-family:"Times New Roman","serif"'> </span><span
style='font-size:10.0pt'>Negatives are cut to length and labeled but not
landed in the CB<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:1.5in;text-indent:-.25in;vertical-align:
middle'><span style='font-size:10.0pt;font-family:Wingdings'>§</span><span
style='font-size:7.0pt;font-family:"Times New Roman","serif"'> </span><span
style='font-size:10.0pt'>Ground is connected in a continuous path to the
racking and modules and is landed in the CB<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:81.0pt;text-indent:-.25in;vertical-align:
middle'><span style='font-size:10.0pt;font-family:Symbol'>·</span><span
style='font-size:7.0pt;font-family:"Times New Roman","serif"'>
</span><span style='font-size:10.0pt'>Test<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:1.5in;text-indent:-.25in;vertical-align:
middle'><span style='font-size:10.0pt;font-family:Wingdings'>§</span><span
style='font-size:7.0pt;font-family:"Times New Roman","serif"'> </span><span
style='font-size:10.0pt'>Check for voltage between each positive and all
negatives - record voltages for each strings and confirm no voltage between
strings of different numbers, simultaneously verify polarity as recording
voltages<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:1.5in;text-indent:-.25in;vertical-align:
middle'><span style='font-size:10.0pt;font-family:Wingdings'>§</span><span
style='font-size:7.0pt;font-family:"Times New Roman","serif"'> </span><span
style='font-size:10.0pt'>Check for voltage between each positive and ground -
record voltage (should be 0)<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:1.5in;text-indent:-.25in;vertical-align:
middle'><span style='font-size:10.0pt;font-family:Wingdings'>§</span><span
style='font-size:7.0pt;font-family:"Times New Roman","serif"'> </span><span
style='font-size:10.0pt'>Check for voltage between each negative and ground -
record voltage (should be 0)<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:1.5in;text-indent:-.25in;vertical-align:
middle'><span style='font-size:10.0pt;font-family:Wingdings'>§</span><span
style='font-size:7.0pt;font-family:"Times New Roman","serif"'> </span><span
style='font-size:10.0pt'>Complete the first half of the combiner box
commissioning worksheet - noting weather, time of day etc.<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:81.0pt;text-indent:-.25in;vertical-align:
middle'><span style='font-size:10.0pt;font-family:Symbol'>·</span><span
style='font-size:7.0pt;font-family:"Times New Roman","serif"'>
</span><span style='font-size:10.0pt'>After the test is complete<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:1.5in;text-indent:-.25in;vertical-align:
middle'><span style='font-size:10.0pt;font-family:Wingdings'>§</span><span
style='font-size:7.0pt;font-family:"Times New Roman","serif"'> </span><span
style='font-size:10.0pt'>Each negative can be landed on the negative block in
the CB<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:1.5in;text-indent:-.25in;vertical-align:
middle'><span style='font-size:10.0pt;font-family:Wingdings'>§</span><span
style='font-size:7.0pt;font-family:"Times New Roman","serif"'> </span><span
style='font-size:10.0pt'>Test continuity of fuses and insert into holders - DO
NOT CLOSE<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:1.5in'><span style='font-size:10.0pt'> <o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:.75in;text-indent:-.25in;vertical-align:
middle'><span style='font-size:10.0pt;font-family:"Courier New"'>o</span><span
style='font-size:7.0pt;font-family:"Times New Roman","serif"'>
</span><span style='font-size:10.0pt'>Output Circuits - Insulation testing of
wires from CB to Inverter and verification of polarity <o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:81.0pt;text-indent:-.25in;vertical-align:
middle'><span style='font-size:10.0pt;font-family:Symbol'>·</span><span
style='font-size:7.0pt;font-family:"Times New Roman","serif"'> </span><span
style='font-size:10.0pt'>Test conditions:<o:p></o:p></span></p>
<ul style='margin-top:0in' type=circle>
<ul style='margin-top:0in' type=disc>
<ul style='margin-top:0in' type=square>
<li class=MsoNormal style='mso-list:l0 level3 lfo1;vertical-align:middle'><span
style='font-size:10.0pt'>Testing to be done at the inverter</span> <span
style='font-size:10.0pt'><o:p></o:p></span></li>
<li class=MsoNormal style='mso-list:l0 level3 lfo1;vertical-align:middle'><span
style='font-size:10.0pt'>All wires are run in conduit, cut to length,
labeled, spliced if applicable and conduit covers are on from combiner
through to inverter</span> <span style='font-size:10.0pt'><o:p></o:p></span></li>
<li class=MsoNormal style='mso-list:l0 level3 lfo1;vertical-align:middle'><span
style='font-size:10.0pt'>Only the ground wires are landed in both the CB
and the inverter <o:p></o:p></span></li>
<li class=MsoNormal style='mso-list:l0 level3 lfo1;vertical-align:middle'><span
style='font-size:10.0pt'>The GFDI fuse is removed from the inverter</span>
<span style='font-size:10.0pt'><o:p></o:p></span></li>
<li class=MsoNormal style='mso-list:l0 level3 lfo1;vertical-align:middle'><span
style='font-size:10.0pt'>All conductors are taped off at the opposite
end of where the Megohmeter will be attached and are safely isolated to
prevent touching of anything and in a safe position to be energized <o:p></o:p></span></li>
</ul>
</ul>
</ul>
<p class=MsoNormal style='margin-left:81.0pt;text-indent:-.25in;vertical-align:
middle'><span style='font-size:10.0pt;font-family:Symbol'>·</span><span
style='font-size:7.0pt;font-family:"Times New Roman","serif"'> </span><span
style='font-size:10.0pt'>Test<o:p></o:p></span></p>
<ul style='margin-top:0in' type=circle>
<ul style='margin-top:0in' type=disc>
<ul style='margin-top:0in' type=square>
<li class=MsoNormal style='mso-list:l5 level3 lfo2;vertical-align:middle'><span
style='font-size:10.0pt'>Megger test all wires to ground at 1000Vdc <o:p></o:p></span></li>
<li class=MsoNormal style='mso-list:l5 level3 lfo2;vertical-align:middle'><span
style='font-size:10.0pt'>Megger test all wires that share a conduit at
any point in the system to each other at 1000Vdc</span> <span
style='font-size:10.0pt'><o:p></o:p></span></li>
<li class=MsoNormal style='mso-list:l5 level3 lfo2;vertical-align:middle'><span
style='font-size:10.0pt'>record all values and troubleshoot any wires
that have a reading under 100 M Ohms corrected for Temp and
humidity</span> <span style='font-size:10.0pt'><o:p></o:p></span></li>
</ul>
</ul>
</ul>
<p class=MsoNormal style='margin-left:135.0pt;text-indent:-.25in;vertical-align:
middle'><span style='font-size:10.0pt;font-family:Symbol'>·</span><span
style='font-size:7.0pt;font-family:"Times New Roman","serif"'>
</span><span style='font-size:10.0pt'>If under 100 M Ohms requires
investigation and may require replacement of the wire<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:81.0pt;text-indent:-.25in;vertical-align:
middle'><span style='font-size:10.0pt;font-family:Symbol'>·</span><span
style='font-size:7.0pt;font-family:"Times New Roman","serif"'> </span><span
style='font-size:10.0pt'>After the test is complete<o:p></o:p></span></p>
<ul style='margin-top:0in' type=circle>
<ul style='margin-top:0in' type=disc>
<ul style='margin-top:0in' type=square>
<li class=MsoNormal style='mso-list:l4 level3 lfo3;vertical-align:middle'><span
style='font-size:10.0pt'>Land the positive and negative at the combiner
box</span> <span style='font-size:10.0pt'><o:p></o:p></span></li>
<li class=MsoNormal style='mso-list:l4 level3 lfo3;vertical-align:middle'><span
style='font-size:10.0pt'>Close one fuse holder at CB1 and close the
integrated CB/rooftop DC disconnect protecting the output of the CB</span>
<span style='font-size:10.0pt'><o:p></o:p></span></li>
<li class=MsoNormal style='mso-list:l4 level3 lfo3;vertical-align:middle'><span
style='font-size:10.0pt'>test for voltage and polarity between the
positive and negative output circuits from CB1 at the inverter and
verify that they are properly labeled</span> <span style='font-size:
10.0pt'><o:p></o:p></span></li>
<li class=MsoNormal style='mso-list:l4 level3 lfo3;vertical-align:middle'><span
style='font-size:10.0pt'>Open the CB/rooftop DC disconnect and then open
the fuse holder in CB#1</span> <span style='font-size:10.0pt'><o:p></o:p></span></li>
<li class=MsoNormal style='mso-list:l4 level3 lfo3;vertical-align:middle'><span
style='font-size:10.0pt'>Verify that the voltage has bled down to zero
then land the positive and negative wires for this combiner box at the
inverter</span> <span style='font-size:10.0pt'><o:p></o:p></span></li>
<li class=MsoNormal style='mso-list:l4 level3 lfo3;vertical-align:middle'><span
style='font-size:10.0pt'>Repeat steps for each CB until all polarity and
wire locations are identified and landed</span> <span style='font-size:
10.0pt'><o:p></o:p></span></li>
<li class=MsoNormal style='mso-list:l4 level3 lfo3;vertical-align:middle'><span
style='font-size:10.0pt'>Once all the positive and negative wires from
the CB's are landed, if applicable test continuity of the fuses at the
inverter disconnect and insert into holders <o:p></o:p></span></li>
</ul>
</ul>
</ul>
<p class=MsoNormal style='margin-left:1.5in;vertical-align:middle'><span
style='font-size:10.0pt'><o:p> </o:p></span></p>
<p class=MsoNormal style='margin-left:.75in;text-indent:-.25in;vertical-align:
middle'><span style='font-size:10.0pt;font-family:"Courier New"'>o</span><span
style='font-size:7.0pt;font-family:"Times New Roman","serif"'>
</span><span style='font-size:10.0pt'>AC Wiring Circuits - Insulation testing
of wires from AC Tie in point (POCC) to Inverter and verification of phasing<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:81.0pt;text-indent:-.25in;vertical-align:
middle'><span style='font-size:10.0pt;font-family:Symbol'>·</span><span
style='font-size:7.0pt;font-family:"Times New Roman","serif"'> </span><span
style='font-size:10.0pt'>Test conditions:<o:p></o:p></span></p>
<ul style='margin-top:0in' type=circle>
<ul style='margin-top:0in' type=disc>
<ul style='margin-top:0in' type=square>
<li class=MsoNormal style='mso-list:l3 level3 lfo4;vertical-align:middle'><span
style='font-size:10.0pt'>Testing to be done at the inverter</span> <span
style='font-size:10.0pt'><o:p></o:p></span></li>
<li class=MsoNormal style='mso-list:l3 level3 lfo4;vertical-align:middle'><span
style='font-size:10.0pt'>All wires are run in conduit, cut to length,
labeled, spliced if applicable and conduit covers are on from AC Point
of Connection through to the inverter</span> <span style='font-size:
10.0pt'><o:p></o:p></span></li>
<li class=MsoNormal style='mso-list:l3 level3 lfo4;vertical-align:middle'><span
style='font-size:10.0pt'>Only the ground wires are landed in both the
Main Service Panel and the inverter <o:p></o:p></span></li>
<li class=MsoNormal style='mso-list:l3 level3 lfo4;vertical-align:middle'><span
style='font-size:10.0pt'>The GFDI fuse is removed from the inverter</span>
<span style='font-size:10.0pt'><o:p></o:p></span></li>
<li class=MsoNormal style='mso-list:l3 level3 lfo4;vertical-align:middle'><span
style='font-size:10.0pt'>All conductors are taped off at the opposite
end of where the Megohmeter will be attached and are safely isolated to
prevent touching of anything and in a safe position to be energized</span>
<span style='font-size:10.0pt'><o:p></o:p></span></li>
</ul>
</ul>
</ul>
<p class=MsoNormal style='margin-left:81.0pt;text-indent:-.25in;vertical-align:
middle'><span style='font-size:10.0pt;font-family:Symbol'>·</span><span
style='font-size:7.0pt;font-family:"Times New Roman","serif"'> </span><span
style='font-size:10.0pt'>Test<o:p></o:p></span></p>
<ul style='margin-top:0in' type=circle>
<ul style='margin-top:0in' type=disc>
<ul style='margin-top:0in' type=square>
<li class=MsoNormal style='mso-list:l2 level3 lfo5;vertical-align:middle'><span
style='font-size:10.0pt'>Megger test all wires to ground at 1000Vdc <o:p></o:p></span></li>
<li class=MsoNormal style='mso-list:l2 level3 lfo5;vertical-align:middle'><span
style='font-size:10.0pt'>Megger test all wires that share a conduit at
any point in the system to each other at 1000Vdc</span> <span
style='font-size:10.0pt'><o:p></o:p></span></li>
<li class=MsoNormal style='mso-list:l2 level3 lfo5;vertical-align:middle'><span
style='font-size:10.0pt'>record all values and troubleshoot any wires
that have a reading under 100 M Ohms corrected for Temp and
humidity</span> <span style='font-size:10.0pt'><o:p></o:p></span></li>
</ul>
</ul>
</ul>
<p class=MsoNormal style='margin-left:135.0pt;text-indent:-.25in;vertical-align:
middle'><span style='font-size:10.0pt;font-family:Symbol'>·</span><span
style='font-size:7.0pt;font-family:"Times New Roman","serif"'>
</span><span style='font-size:10.0pt'>If under 100 M Ohms requires
investigation and may require replacement of the wire<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:81.0pt;text-indent:-.25in;vertical-align:
middle'><span style='font-size:10.0pt;font-family:Symbol'>·</span><span
style='font-size:7.0pt;font-family:"Times New Roman","serif"'> </span><span
style='font-size:10.0pt'>After the test is complete<o:p></o:p></span></p>
<ul style='margin-top:0in' type=circle>
<ul style='margin-top:0in' type=disc>
<ul style='margin-top:0in' type=square>
<li class=MsoNormal style='mso-list:l6 level3 lfo6;vertical-align:middle'><span
style='font-size:10.0pt'>Land the conductors in the inverter being sure
to follow the inverter manufacturer’s guidelines for torque settings and
use a permanent marker to create a straight line across the screw
indicating the proper torque setting</span> <span style='font-size:10.0pt'><o:p></o:p></span></li>
<li class=MsoNormal style='mso-list:l6 level3 lfo6;vertical-align:middle'><span
style='font-size:10.0pt'>This test will likely be completed before the
building shut down to interconnect the system. Do not land the
conductors at the AC tie-in point until the panel has been properly
de-energized</span> <span style='font-size:10.0pt'><o:p></o:p></span></li>
<li class=MsoNormal style='mso-list:l6 level3 lfo6;vertical-align:middle'><span
style='font-size:10.0pt'>After the Service Panel or tie-in point is
de-energized, land the conductors at the AC tie-in point. Be sure
to follow the manufacturer’s guidelines for proper torque settings and
use a permanent marker to create a straight line across the screw
indicating the proper torque setting.</span> <span style='font-size:
10.0pt'><o:p></o:p></span></li>
</ul>
</ul>
</ul>
<p class=MsoListParagraph style='mso-margin-top-alt:0in;margin-right:0in;
margin-bottom:0in;margin-left:49.5pt;margin-bottom:.0001pt;text-indent:-13.5pt;
line-height:normal'><span style='font-size:10.0pt;font-family:"Courier New"'>o</span><span
style='font-size:7.0pt;font-family:"Times New Roman","serif"'> </span><span
style='font-size:10.0pt'>Connection testing<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:81.0pt;text-indent:-.25in;vertical-align:
middle'><span style='font-size:10.0pt;font-family:Symbol'>·</span><span
style='font-size:7.0pt;font-family:"Times New Roman","serif"'> </span><span
style='font-size:10.0pt'>Test conditions:<o:p></o:p></span></p>
<ul style='margin-top:0in' type=circle>
<ul style='margin-top:0in' type=disc>
<ul style='margin-top:0in' type=square>
<li class=MsoNormal style='mso-list:l7 level3 lfo7;vertical-align:middle'><span
style='font-size:10.0pt'>Testing to be done at all locations</span> <span
style='font-size:10.0pt'><o:p></o:p></span></li>
<li class=MsoNormal style='mso-list:l7 level3 lfo7;vertical-align:middle'><span
style='font-size:10.0pt'>All wires are landed</span> <span
style='font-size:10.0pt'><o:p></o:p></span></li>
</ul>
</ul>
</ul>
<p class=MsoNormal style='margin-left:81.0pt;text-indent:-.25in;vertical-align:
middle'><span style='font-size:10.0pt;font-family:Symbol'>·</span><span
style='font-size:7.0pt;font-family:"Times New Roman","serif"'> </span><span
style='font-size:10.0pt'>Test<o:p></o:p></span></p>
<ul style='margin-top:0in' type=circle>
<ul style='margin-top:0in' type=disc>
<ul style='margin-top:0in' type=square>
<li class=MsoNormal style='mso-list:l1 level3 lfo8;vertical-align:middle'><span
style='font-size:10.0pt'>Test all wires for proper torque settings -
refer to manufacturer installation manual</span> <span style='font-size:
10.0pt'><o:p></o:p></span></li>
<li class=MsoNormal style='mso-list:l1 level3 lfo8;vertical-align:middle'><span
style='font-size:10.0pt'>Physically tug on all wires for a visual
inspection of loose connections <o:p></o:p></span></li>
</ul>
</ul>
</ul>
<p class=MsoNormal style='margin-left:1.5in'><span style='font-size:10.0pt'>NOTE
- All conductors #4 and larger should be marked with a straight line on the
screw once they have been tightened to the appropriate setting<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:81.0pt;text-indent:-.25in;vertical-align:
middle'><span style='font-size:10.0pt;font-family:Symbol'>·</span><span
style='font-size:7.0pt;font-family:"Times New Roman","serif"'>
</span><span style='font-size:10.0pt'>After the test is complete<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:1.5in;text-indent:-.25in;vertical-align:
middle'><span style='font-size:10.0pt;font-family:Wingdings'>§</span><span
style='font-size:7.0pt;font-family:"Times New Roman","serif"'> </span><span
style='font-size:10.0pt'>Close all fuse holders at each combiner box<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:1.5in;text-indent:-.25in;vertical-align:
middle'><span style='font-size:10.0pt;font-family:Wingdings'>§</span><span
style='font-size:7.0pt;font-family:"Times New Roman","serif"'> </span><span
style='font-size:10.0pt'>Close all DC disconnects associated with each combiner
box<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:1.5in'><span style='font-size:10.0pt'> <o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:9.0pt;vertical-align:middle'><b><span
style='font-size:10.0pt'>System Commissioning<o:p></o:p></span></b></p>
<p class=MsoNormal style='margin-left:1.0in;text-indent:-.5in;vertical-align:
middle'><span style='font-size:10.0pt;font-family:"Courier New"'>o</span><span
style='font-size:7.0pt;font-family:"Times New Roman","serif"'>
</span><span style='font-size:10.0pt'>You are now ready to Commission the
inverter<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:.75in;text-indent:-.25in;vertical-align:
middle'><span style='font-size:10.0pt;font-family:"Courier New"'>o</span><span
style='font-size:7.0pt;font-family:"Times New Roman","serif"'>
</span><span style='font-size:10.0pt'>Follow inverter manufacturer
commissioning procedures<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:.75in;text-indent:-.25in;vertical-align:
middle'><span style='font-size:10.0pt;font-family:"Courier New"'>o</span><span
style='font-size:7.0pt;font-family:"Times New Roman","serif"'>
</span><span style='font-size:10.0pt'>Complete the balance of the combiner box
commissioning worksheet, the initial start up and inverter commissioning
worksheet<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:.75in'><span style='font-size:10.0pt'><o:p> </o:p></span></p>
<p class=MsoNormal style='margin-left:.75in'><span style='font-size:10.0pt'><o:p> </o:p></span></p>
<p class=MsoNormal style='margin-left:81.0pt;text-indent:-.25in;vertical-align:
middle'><span style='font-size:10.0pt;font-family:Symbol'>·</span><span
style='font-size:7.0pt;font-family:"Times New Roman","serif"'>
</span><span style='font-size:10.0pt'>Imp Testing of source circuits<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:1.5in;text-indent:-.25in;vertical-align:
middle'><span style='font-size:10.0pt;font-family:Wingdings'>§</span><span
style='font-size:7.0pt;font-family:"Times New Roman","serif"'> </span><span
style='font-size:10.0pt'>Test conditions:<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:135.0pt;text-indent:-.25in;vertical-align:
middle'><span style='font-size:10.0pt;font-family:Symbol'>·</span><span
style='font-size:7.0pt;font-family:"Times New Roman","serif"'>
</span><span style='font-size:10.0pt'>Testing to be conducted at combiner boxes<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:135.0pt;text-indent:-.25in;vertical-align:
middle'><span style='font-size:10.0pt;font-family:Symbol'>·</span><span
style='font-size:7.0pt;font-family:"Times New Roman","serif"'>
</span><span style='font-size:10.0pt'>System is up and running <o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:1.5in;text-indent:-.25in;vertical-align:
middle'><span style='font-size:10.0pt;font-family:Wingdings'>§</span><span
style='font-size:7.0pt;font-family:"Times New Roman","serif"'> </span><span
style='font-size:10.0pt'>Test<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:135.0pt;text-indent:-.25in;vertical-align:
middle'><span style='font-size:10.0pt;font-family:Symbol'>·</span><span
style='font-size:7.0pt;font-family:"Times New Roman","serif"'>
</span><span style='font-size:10.0pt'>At each combiner box, check for operating
current of each string by placing a clamp meter around each positive source
circuit - record the value on the combiner box commissioning worksheet<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:135.0pt;text-indent:-.25in;vertical-align:
middle'><span style='font-size:10.0pt;font-family:Symbol'>·</span><span
style='font-size:7.0pt;font-family:"Times New Roman","serif"'>
</span><span style='font-size:10.0pt'>Simultaneously record the irradiance
value at the plane of the module for the strings of which you are testing<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:135.0pt;text-indent:-.25in;vertical-align:
middle'><span style='font-size:10.0pt;font-family:Symbol'>·</span><span
style='font-size:7.0pt;font-family:"Times New Roman","serif"'>
</span><span style='font-size:10.0pt'>Repeat for all strings in the combiner
box <o:p></o:p></span></p>
<p class=MsoListParagraph style='mso-margin-top-alt:0in;margin-right:0in;
margin-bottom:0in;margin-left:1.0in;margin-bottom:.0001pt;text-indent:-.25in;
line-height:normal'><span style='font-size:10.0pt;font-family:Wingdings'>§</span><span
style='font-size:7.0pt;font-family:"Times New Roman","serif"'> </span><span
style='font-size:10.0pt'>Imp Testing of output circuits<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:1.5in;text-indent:-.25in;vertical-align:
middle'><span style='font-size:10.0pt;font-family:Wingdings'>§</span><span
style='font-size:7.0pt;font-family:"Times New Roman","serif"'> </span><span
style='font-size:10.0pt'>Test conditions:<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:135.0pt;text-indent:-.25in;vertical-align:
middle'><span style='font-size:10.0pt;font-family:Symbol'>·</span><span
style='font-size:7.0pt;font-family:"Times New Roman","serif"'>
</span><span style='font-size:10.0pt'>Testing to be conducted at the inverter<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:135.0pt;text-indent:-.25in;vertical-align:
middle'><span style='font-size:10.0pt;font-family:Symbol'>·</span><span
style='font-size:7.0pt;font-family:"Times New Roman","serif"'>
</span><span style='font-size:10.0pt'>System is up and running<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:1.5in;text-indent:-.25in;vertical-align:
middle'><span style='font-size:10.0pt;font-family:Wingdings'>§</span><span
style='font-size:7.0pt;font-family:"Times New Roman","serif"'> </span><span
style='font-size:10.0pt'>Test<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:135.0pt;text-indent:-.25in;vertical-align:
middle'><span style='font-size:10.0pt;font-family:Symbol'>·</span><span
style='font-size:7.0pt;font-family:"Times New Roman","serif"'>
</span><span style='font-size:10.0pt'>Check for operating current of each CB
output circuit by placing a clamp meter around each positive wire - record the
value on the inverter commissioning worksheet<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:135.0pt;text-indent:-.25in;vertical-align:
middle'><span style='font-size:10.0pt;font-family:Symbol'>·</span><span
style='font-size:7.0pt;font-family:"Times New Roman","serif"'>
</span><span style='font-size:10.0pt'>Simultaneously record the irradiance
value at the plane of the representative modules for the combiner box of which
you are testing <o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:135.0pt;text-indent:-.25in;vertical-align:
middle'><span style='font-size:10.0pt;font-family:Symbol'>·</span><span
style='font-size:7.0pt;font-family:"Times New Roman","serif"'>
</span><span style='font-size:10.0pt'>Repeat for all output circuits from each
combiner box<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<div>
<p class=MsoNormal><span style='color:#595959'>-Chris Anderson<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:9.0pt;color:#595959'> Chief
Technology Officer<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:9.0pt;color:#595959'> Resources
Group <o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:9.0pt;color:#595959'> C: 603-732-2411<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:9.0pt;color:#595959'> Borrego
Solar Systems<o:p></o:p></span></p>
</div>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<div>
<div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'>
<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>
re-wrenches-bounces@lists.re-wrenches.org
[mailto:re-wrenches-bounces@lists.re-wrenches.org] <b>On Behalf Of </b>David
Palumbo<br>
<b>Sent:</b> Monday, September 14, 2009 10:58 PM<br>
<b>To:</b> 'RE-wrenches'<br>
<b>Subject:</b> Re: [RE-wrenches] Insulation testing<o:p></o:p></span></p>
</div>
</div>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New"'>I’d
like to see if we can complete the thread on insulation testers (Meggers).
Below is a copy of Bill Brooks last posting on this subject from several weeks
ago. <o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New"'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New"'>Bill
says the keys are to use the tester and in “performing the tests properly and
safely which requires test procedures”. What are the proper testing procedures?
We have a Fluke 1503 and the information that came with it is not very helpful
in setting up a testing procedure. The DVD that came with it is more of a sales
tool on why you should have the tool. We already have the tool. We want to know
how to use the tool. Can anybody give advice on this?<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New"'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New"'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New"'><<
I bought two insulation testers (Megger is a brand name) in April. A used<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New"'>Fluke
1520 off Ebay for $275 and a new inexpensive (cheap) insulation tester<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New"'>on
Amazon (Electronic Specialties 550 Insulation Tester for $162). Both work<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New"'>fine.
The Fluke has better accuracy that I need for very specialized "field<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New"'>wet
resistance testing" (FWRT). However, the cheap tester works great for<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New"'>finding
faults in conductors and severe faults in modules. <o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New"'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New"'>I
bought both to determine if a cheap meter would work and the answer is<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New"'>YES.
The key is performing the tests properly and safely which requires test<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New"'>procedures.
The other key to actually use the tester. Several people own<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New"'>these
devices, but never use them. They should be used on every installation<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New"'>after
the wire is installed to determine if any wire damage is visible to<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New"'>the
tester. Even though this will not solve all field mistakes, it will<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New"'>catch
the marginal problems that may be too small to be detected by the GFP<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New"'>circuit
in the inverter.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New"'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New"'>Bill.
>><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New"'><o:p> </o:p></span></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><i>David Palumbo<o:p></o:p></i></p>
<p class=MsoNormal><i>President, Independent Power LLC<o:p></o:p></i></p>
<p class=MsoNormal><i>462 Solar Way Drive, Hyde Park, VT 05655<o:p></o:p></i></p>
<p class=MsoNormal>NABCEP Certified<o:p></o:p></p>
<p class=MsoNormal><i>www.independentpowerllc.com <o:p></o:p></i></p>
<p class=MsoNormal><i>(802) 888-7194<o:p></o:p></i></p>
<p class=MsoNormal><o:p> </o:p></p>
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