<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto">These are great charts.<div>What I\u2019ve always done this to find cross-sectional area of the typical round battery cable ampacity required per the NEC. Then calculate equivalent cross-sectional area of rectangular copper bus and buy that dimension in 6\u2019 lengths to make my own.<br><br><div id="AppleMailSignature" dir="ltr">Kirk Herander<div><br></div></div><div dir="ltr"><br>On May 2, 2019, at 11:16 AM, Drake <<a href="mailto:drake.chamberlin@redwoodalliance.org">drake.chamberlin@redwoodalliance.org</a>> wrote:<br><br></div><blockquote type="cite"><div dir="ltr">
What great information from you guys! Anyone who saves these tables
should be able to design bus bars with confidence.<br><br>
Thank you,<br><br>
Drake <br><br>
<br>
At 03:31 PM 5/1/2019, you wrote:<br>
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multipart/alternative;<br>
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Drake,<br>
I found the information available online at the Copper Development
Association website to be valuable for DC applications:<br>
<br>
<a href="https://www.copper.org/applications/electrical/busbar/">
https://www.copper.org/applications/electrical/busbar/</a><br>
<br>
Hope this helps.<br>
-Glenn<br>
<br>
<b>From:</b> RE-wrenches
<<a href="mailto:re-wrenches-bounces@lists.re-wrenches.org">re-wrenches-bounces@lists.re-wrenches.org</a>> <b>On Behalf Of
</b><a href="mailto:drake.chamberlin@redwoodalliance.org">drake.chamberlin@redwoodalliance.org</a><br>
<b>Sent:</b> Wednesday, May 01, 2019 8:06 AM<br>
<b>To:</b> RE-wrenches <<a href="mailto:re-wrenches@lists.re-wrenches.org">re-wrenches@lists.re-wrenches.org</a>><br>
<b>Subject:</b> Re: [RE-wrenches] Bus bar battery jumpers<br>
<br>
Glenn,<br>
<br>
Thank you for that good information. <br>
<br>
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>
<br>
Drake <br>
<br>
<dl><br>
<dd>----- Original Message -----<br>
</dd><dd>From:<br>
</dd><dd><a href="mailto:glenn.burt@glbcc.com">glenn.burt@glbcc.com</a>
"RE-wrenches"
<<a href="mailto:re-wrenches@lists.re-wrenches.org">
re-wrenches@lists.re-wrenches.org</a>><br>
</dd><dd> <br>
</dd><dd>To:<br>
</dd><dd>"RE-wrenches"
<<a href="mailto:re-wrenches@lists.re-wrenches.org">
re-wrenches@lists.re-wrenches.org</a>><br>
</dd><dd>Cc:<br>
</dd><dd> <br>
</dd><dd>Sent:<br>
</dd><dd>Tue, 30 Apr 2019 20:31:39 -0400<br>
</dd><dd>Subject:<br>
</dd><dd>Re: [RE-wrenches] Bus bar battery jumpers<br><br>
</dd><dd>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<br><br>
</dd><dd> <br>
</dd><dd>-Glenn<br><br>
</dd><dd> <br>
</dd><dd>From: RE-wrenches
<<a href="mailto:re-wrenches-bounces@lists.re-wrenches.org">
re-wrenches-bounces@lists.re-wrenches.org</a>> On Behalf Of
Drake<br>
</dd><dd>Sent: Tuesday, April 30, 2019 12:27 PM<br>
</dd><dd>To: RE-wrenches
<<a href="mailto:re-wrenches@lists.re-wrenches.org">
re-wrenches@lists.re-wrenches.org</a>><br>
</dd><dd>Subject: [RE-wrenches] Bus bar battery jumpers<br><br>
</dd><dd> <br>
</dd><dd>Hello Wrenches,<br><br>
</dd><dd>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><br>
</dd><dd>Does anyone know of a source for busbars?<br><br>
</dd><dd>Thank you,<br><br>
</dd><dd>Drake <br><br>
</dd><dd>Drake Chamberlin<br>
</dd><dd>Athens Electric LLC<br>
</dd><dd>OH License 44810<br>
</dd><dd>CO License 3773<br>
</dd><dd>NABCEP Certified Solar PV <br>
</dd><dd>740-448-7328<br>
</dd><dd><a href="http://athens-electric.com/">http://athens-electric.com/</a>
<br><br>
</dd></dl>_______________________________________________<br>
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