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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>I seem to remember that Rule of thumb is 2000 amps / square inch for copper so 50 amps would be 3/16” diameter.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>¼” diameter would be OK for 100 amps. Hugh<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm'><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"'> Personal_Submersibles [mailto:personal_submersibles-bounces@psubs.org] <b>On Behalf Of </b>Brian Cox via Personal_Submersibles<br><b>Sent:</b> Monday, 8 February 2016 7:38 a.m.<br><b>To:</b> Personal Submersibles General Discussion<br><b>Subject:</b> Re: [PSUBS-MAILIST] Electrical thru-hull<o:p></o:p></span></p></div><p class=MsoNormal><o:p> </o:p></p><div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Hank, Jon,<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>                       What diameter rod do you need for 50A ?<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'> <o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-bottom:12.0pt'><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Brian<br><br>--- <a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a> wrote:<br><br>From: hank pronk via Personal_Submersibles <<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>><br>To: Personal Submersibles General Discussion <<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>><br>Subject: Re: [PSUBS-MAILIST] Electrical thru-hull<br>Date: Sun, 7 Feb 2016 17:22:36 +0000 (UTC)<o:p></o:p></span></p></div><div><div><p class=MsoNormal style='background:white'><span style='font-size:9.0pt;font-family:"Helvetica","sans-serif";color:black'>Jon,<o:p></o:p></span></p></div><div><p class=MsoNormal style='background:white'><span style='font-size:9.0pt;font-family:"Helvetica","sans-serif";color:black'>That should work perfectly well, I would drill and tap the delron so the rods thread into it, if not threaded all the way at least partially.  You could solder the wires to the end of the rods or crimp.  Then encapsulate the connections, I assume that is what your thinking with that void at the top.  The beauty of your material choice is you can get more rods into one penetrator.  <o:p></o:p></span></p></div><div><p class=MsoNormal style='background:white'><span style='font-size:9.0pt;font-family:"Helvetica","sans-serif";color:black'>Hank<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-bottom:12.0pt;background:white'><span style='font-size:9.0pt;font-family:"Helvetica","sans-serif";color:black'><o:p> </o:p></span></p></div><div><div><div><div><p class=MsoNormal style='background:white'><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:black'>On Sunday, February 7, 2016 9:41 AM, Jon Wallace via Personal_Submersibles <<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>> wrote:</span><span style='font-family:"Helvetica","sans-serif";color:black'><o:p></o:p></span></p></div><p class=MsoNormal style='margin-bottom:12.0pt;background:white'><span style='font-family:"Helvetica","sans-serif";color:black'><o:p> </o:p></span></p><div><div><div><div><p class=MsoNormal style='margin-bottom:12.0pt;background:white'><span style='font-family:"Helvetica","sans-serif";color:black'><br>Hank, I need penetrators for 36vdc power to motors (50amp), 12vdc power to lights (20amp), and other small electronic sensors.   Any thoughts about delron or nylon as a body for machining.  Attached is a design for threaded rod through delron that I came up.  The nuts on the threaded rod probably not necessary if locktite or epoxy is used on the threads before driving it into the thru-hull body.<br><br>Jon<br><br><o:p></o:p></span></p><div><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica","sans-serif";color:black'><br>On 2/6/2016 2:24 PM, hank pronk via Personal_Submersibles wrote:<o:p></o:p></span></p></div></div><div><blockquote style='margin-top:5.0pt;margin-bottom:5.0pt'><table class=MsoNormalTable border=0 cellspacing=0 cellpadding=0><tr><td valign=top style='padding:0cm 0cm 0cm 0cm'><div><p class=MsoN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