<html><head></head><body><div class="ydpf164d7a7yahoo-style-wrap" style="font-family:Helvetica Neue, Helvetica, Arial, sans-serif;font-size:16px;"><div><div>table 3 is a bus bar size selector based on ampacities--you can match that with what Mcmaster offers in 101 copper (higher purity than standard 110 copper).</div><div>we've made bus bars for years using this method. trickiest part is drilling a clean hole in the copper.<br></div><div><br></div><div><a href="https://www.copper.org/publications/pub_list/pdf/a6022.pdf" rel="nofollow" target="_blank">https://www.copper.org/publications/pub_list/pdf/a6022.pdf</a></div><div><br></div><div class="ydpf164d7a7signature"><div>Bill Hennessy<br>Berks Solar, LLC<br>371 Centennial Rd<br>Mertztown, PA 19539<br><br>o 610 682 4300<br>c 484 560 4666<br>NABCEP certified installer<br>PA contractor #44411<br>www.berkssolar.com</div></div></div>
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On Wednesday, May 1, 2019, 8:05:59 AM EDT, drake.chamberlin@redwoodalliance.org <drake.chamberlin@redwoodalliance.org> wrote:
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<div><div id="ydp338467d5yiv4758911252"><div><div>Glenn,</div><div><br clear="none"></div><div>Thank you for that good information. <br clear="none"></div><div><br clear="none"></div><div>Where do you find the specifications relating cross sectional area to amperage? Section 366.23 of the NEC allows 1000 A / sq. in. of cross sectional area of the conductor. Is that a good rule of thumb, or is there something more specific to battery busing?<br clear="none"></div><div><br clear="none"></div><div>Drake <br clear="none"></div><br clear="none"><br clear="none"><div class="ydp338467d5yiv4758911252yqt2979048140" id="ydp338467d5yiv4758911252yqt08765"><blockquote class="ydp338467d5yiv4758911252atmailquote"><br clear="none">----- Original Message -----<br clear="none"><div id="ydp338467d5yiv4758911252origionalMessageFromField" style="width: 100%; display: inline; background-color: rgb(228, 228, 228); background-repeat: repeat; background-attachment: scroll; background-image: none; background-size: auto;"><div style="display:inline;font-weight:bold;">From:</div> glenn.burt@glbcc.com "RE-wrenches" <re-wrenches@lists.re-wrenches.org></div><br clear="none"><div id="ydp338467d5yiv4758911252origionalMessageToField" style="display:inline;font-weight:bold;">To:</div>"RE-wrenches" <re-wrenches@lists.re-wrenches.org><br clear="none"><div id="ydp338467d5yiv4758911252origionalMessageSentField" style="display:inline;font-weight:bold;">Cc:</div><br clear="none"><div style="display:inline;font-weight:bold;">Sent:</div>Tue, 30 Apr 2019 20:31:39 -0400<br clear="none"><div id="ydp338467d5yiv4758911252origionalMessageSubjectField" style="display:inline;font-weight:bold;">Subject:</div>Re: [RE-wrenches] Bus bar battery jumpers<br clear="none"><br clear="none"><br clear="none"><div class="ydp338467d5yiv4758911252WordSection1"><p class="ydp338467d5yiv4758911252MsoNormal">I have always bought the appropriately sized for the anticipated current, copper bar stock from McMaster Carr and cut, drilled and applied heat shrink myself\u2026</p><p></p><p class="ydp338467d5yiv4758911252MsoNormal"></p><p> </p><p class="ydp338467d5yiv4758911252MsoNormal">-Glenn</p><p></p><p class="ydp338467d5yiv4758911252MsoNormal"></p><p> </p><div><div style="border-color: rgb(225, 225, 225) currentcolor currentcolor; border-style: solid none none; border-width: 1pt medium medium; padding: 3pt 0in 0in;"><p class="ydp338467d5yiv4758911252MsoNormal"><b>From:</b> RE-wrenches <re-wrenches-bounces@lists.re-wrenches.org> <b>On Behalf Of </b>Drake<br clear="none"><b>Sent:</b> Tuesday, April 30, 2019 12:27 PM<br clear="none"><b>To:</b> RE-wrenches <re-wrenches@lists.re-wrenches.org><br clear="none"><b>Subject:</b> [RE-wrenches] Bus bar battery jumpers</p><p></p></div></div><p class="ydp338467d5yiv4758911252MsoNormal"></p><p> </p><p class="ydp338467d5yiv4758911252MsoNormal" style="margin-bottom:12pt;">Hello Wrenches,<br clear="none"><br clear="none">I am wiring a set of 2 V Concorde batteries for 48 V. Each battery has 2 terminals which will be about 2 1/2 inches away from the terminals they will be wired to. Standard battery jumpers would be ridiculous in this situation. Busbars would be clean and efficient. Concorde doesn't have a solution.<br clear="none"><br clear="none">Does anyone know of a source for busbars?<br clear="none"><br clear="none">Thank you,<br clear="none"><br clear="none">Drake <br clear="none"><br clear="none">Drake Chamberlin<br clear="none"><i>Athens Electric LLC<br clear="none">OH License 44810<br clear="none">CO License 3773<br clear="none">NABCEP Certified Solar PV <br clear="none">740-448-7328<br clear="none"></i><a shape="rect" href="http://athens-electric.com/" rel="nofollow" target="_blank">http://athens-electric.com/</a> </p><p></p></div>
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