<html><head><style type="text/css"><!-- DIV {margin:0px;} --></style></head><body><div style="font-family:arial,helvetica,sans-serif;font-size:12pt">Hello Wrenches:<br> I have read a few of the archives on this subject, and have a couple questions. I have been testing arrays with an insulation tester, and have found that some module types have more leakage than other modules. Bill mentioned Amorphous being really bad. <br> I have found my less expensive tester to work for me, but read in another post about the value of a .001 M ohm tester. Is that level of accuracy need? <br> I was testing a Sanyo array today, and was told that ~20M ohms on the series string to ground was not a problem. With the strings isolated, the array conductors commonly have voltage readings of 260V+ to ground, but it dissipates with the meter connected. Is this induced voltage caused by
the leakage current that the manufacturer called 'normal?'<br><div> </div>Nick Soleil<br>Project Manager<br>Advanced Alternative Energy Solutions, LLC<br>PO Box 657<br>Petaluma, CA 94953<br>Cell: 707-321-2937<br>Office: 707-789-9537<br>Fax: 707-769-9037<div><br></div><div style="font-family: arial,helvetica,sans-serif; font-size: 12pt;"><br><div style="font-family: arial,helvetica,sans-serif; font-size: 10pt;"><font size="2" face="Tahoma"><hr size="1"><b><span style="font-weight: bold;">From:</span></b> Hans Frederickson <hans@fredelectric.com><br><b><span style="font-weight: bold;">To:</span></b> RE-wrenches <re-wrenches@lists.re-wrenches.org><br><b><span style="font-weight: bold;">Sent:</span></b> Tue, November 24, 2009 4:32:11 PM<br><b><span style="font-weight: bold;">Subject:</span></b> Re: [RE-wrenches] wiring the Soladeck<br></font><br>
The "2-hole strain relief" is called a cable gland. T&B makes a line that<br>includes 2-hole, 3-hole, 4-hole etc. The part numbers all begin with<br>CC-NPT-*. The 2-hole gland is CC-NPT-12-G-2. You can find the complete<br>selection on the last page of this PDF:<br><span><a target="_blank" href="http://tnblnx3.tnb.com/emAlbum/albums//tc_us/tc_1_ltnonmettalicflex.pdf">http://tnblnx3.tnb.com/emAlbum/albums//tc_us/tc_1_ltnonmettalicflex.pdf</a></span><br><br>Be aware the diameter of the wires (USE or PV-wire) that you're running<br>through the gland and make sure you order a part that has the right size<br>holes. I like to run my #6 copper EGC through a gland or cord grip as well.<br>The T&B cable glands are not UV resistant, so you don't want to use them<br>where exposed to sunlight (i.e. keep the Soladeck under the array). I've got<br>a collection of UV-resistant cable glands but I can't remember the<br>manufacturer. The problem with those is that
they aren't UL listed. If it's<br>not one problem, it's another...<br><br>The manufacturer of the Soladeck is RSTC Enterprises:<br><span><a target="_blank" href="http://www.rstcenterprises.com/pdf/soladeck_brochure.pdf">http://www.rstcenterprises.com/pdf/soladeck_brochure.pdf</a></span><br><br>I spoke with them a while back when I was getting sorted out with cable<br>glands and the guy I talked to claimed he was working on getting a line of<br>cable glands to sell with the Soladeck. I haven't seen this from any of the<br>suppliers however.<br><br>Regards,<br>-Hans<br><br><br>________________________________<br><br>From: <a ymailto="mailto:re-wrenches-bounces@lists.re-wrenches.org" href="mailto:re-wrenches-bounces@lists.re-wrenches.org">re-wrenches-bounces@lists.re-wrenches.org</a><br>[mailto:<a ymailto="mailto:re-wrenches-bounces@lists.re-wrenches.org" href="mailto:re-wrenches-bounces@lists.re-wrenches.org">re-wrenches-bounces@lists.re-wrenches.org</a>]
On Behalf Of Mick Abraham<br>Sent: Tuesday, November 24, 2009 2:43 PM<br>To: RE-wrenches<br>Subject: Re: [RE-wrenches] wiring the Soladeck<br><br><br>I drill where the "dimples" are in the sheet metal, then punch for .5" trade<br>size, then install one of the plastic two hole strain relief clamps as are<br>available from AEEsolar and others.<br><br>I feel that one must not rely on the foam lid gasket to sufficiently "clamp"<br>the power leads. That just seems like asking Murphy to impose the Law.<br><br>The conductor for grounding the metal array parts can just exit through a<br>drilled hole in the box with no strain clamp, because there's a metal loop<br>that this wire can first loop through to give some tug prevention.<br><br>Jolliness,<br><br>Mick Abraham, Proprietor<br><a target="_blank" href="http://www.abrahamsolar.com">www.abrahamsolar.com</a><br><br>Voice: 970-731-4675<br><br><br><br>On Tue, Nov 24, 2009 at 3:12 PM, Dave Click <<a
ymailto="mailto:daveclick@fsec.ucf.edu" href="mailto:daveclick@fsec.ucf.edu">daveclick@fsec.ucf.edu</a>> wrote:<br><br><br> Wrenches-<br> <br> How are folks wiring the Soladeck boxes? It seems that the intent is<br>to use cord grips in the south end of the box, but I just saw another<br>installation where the wires just came directly in through the space at the<br>south end. Seems like the foam is included to keep bugs out rather than<br>provide strain relief to those incoming conductors, so I guess I'm just<br>looking for a reality check here.<br> <br> Thanks and happy Thanksgiving!<br> DKC<br> _______________________________________________<br> <br><br><br>_______________________________________________<br>List sponsored by Home Power magazine<br><br>List Address: <a
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