[PSUBS-MAILIST] Electrical thru-hull

[James Frankland via Personal_Submersibles]

I would solder on any connections before assembly.  Or make sure you have
some method of attaching the wires to the threaded rods. Bolts, whatever.
Its impossible to solder to the rods when they are potted\delrin's in place
without damaging the delrin or potting compound.  you just cant get it hot
enough.  I didn't, and its caused me 2x motor rebuilds due to connections
coming lose.
regards
James


On 7 February 2016 at 21:27, Hugh Fulton via Personal_Submersibles <
personal_submersibles at psubs.org> wrote:

> I seem to remember that Rule of thumb is 2000 amps / square inch for
> copper so 50 amps would be 3/16” diameter.
>
> ¼” diameter would be OK for 100 amps. Hugh
>
>
>
>
>
> *From:* Personal_Submersibles [mailto:
> personal_submersibles-bounces at psubs.org] *On Behalf Of *Brian Cox via
> Personal_Submersibles
> *Sent:* Monday, 8 February 2016 7:38 a.m.
> *To:* Personal Submersibles General Discussion
> *Subject:* Re: [PSUBS-MAILIST] Electrical thru-hull
>
>
>
> Hank, Jon,
>
>                        What diameter rod do you need for 50A ?
>
>
>
> Brian
>
> --- personal_submersibles at psubs.org wrote:
>
> From: hank pronk via Personal_Submersibles <
> personal_submersibles at psubs.org>
> To: Personal Submersibles General Discussion <
> personal_submersibles at psubs.org>
> Subject: Re: [PSUBS-MAILIST] Electrical thru-hull
> Date: Sun, 7 Feb 2016 17:22:36 +0000 (UTC)
>
> Jon,
>
> 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.
>
> Hank
>
>
>
> On Sunday, February 7, 2016 9:41 AM, Jon Wallace via Personal_Submersibles
> <personal_submersibles at psubs.org> wrote:
>
>
>
>
> 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.
>
> Jon
>
>
> On 2/6/2016 2:24 PM, hank pronk via Personal_Submersibles wrote:
>
> Jon,
> What do you have to work with in terms of hole in hull. What amp are you
> trying to run through.
> Hank
>
>
>
>
>
>
>
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