<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto"><div>Thanks Sean,</div><div id="AppleMailSignature">I filed a conical penetrator design, but had forgotten about it!</div><div id="AppleMailSignature">Alan<br><br>Sent from my iPad</div><div><br>On 18/05/2017, at 9:28 AM, Sean T. Stevenson via Personal_Submersibles <<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>> wrote:<br><br></div><blockquote type="cite"><div><meta http-equiv="content-type" content="text/html; charset=utf-8"><p dir="ltr">If you machine the hole through the penetrator as a conical cavity rather than cylindrical, and then use a potting epoxy with some compliance / flexibility, the pressure acting to push the potting compound into the hole will also develop some increased compressive force around the electrodes.</p>
<p dir="ltr">Sean<br>
</p>
<br><br><div class="gmail_quote">On May 17, 2017 1:55:51 PM MDT, Alan via Personal_Submersibles <<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>> wrote:<blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
<div>Hank,</div><div id="AppleMailSignature">If I cover everything with the glue & then the polyurethane, I won't need to rely on</div><div id="AppleMailSignature">the epoxy for sealing. If the cable was cut then the system would rely on the epoxy</div><div id="AppleMailSignature">as a back up. At that stage I could put up with a temporary dribble; the electrics would</div><div id="AppleMailSignature">be shorting out as well. I will be wary of stripping back enough of the wiring sheath,</div><div id="AppleMailSignature">but failure can also occur between the epoxy & wall of the penetrator.</div><div id="AppleMailSignature">Cheers Alan</div><div id="AppleMailSignature"><br></div><div id="AppleMailSignature"><br>Sent from my iPad</div><div><br>On 18/05/2017, at 12:02 AM, hank pronk via Personal_Submersibles <<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>> wrote:<br><br></div><blockquote type="cite"><div><div style="color:#000; background-color:#fff; font-family:Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:13px"><div><span>Alan,</span></div><div dir="ltr" id="yui_3_16_0_ym19_1_1495022071572_4489"><span>That is not correct, the epoxy will not stop the water past 1,000 psi </span>completely. If the wires are stripped back further so the sealant creates an extra layer against t</div></div></div></blockquote></blockquote></div></div></blockquote><blockquote type="cite"><div><span>_______________________________________________</span><br><span>Personal_Submersibles mailing list</span><br><span><a href="mailto:Personal_Submersibles@psubs.org">Personal_Submersibles@psubs.org</a></span><br><span><a href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</a></span><br></div></blockquote></body></html>