<div dir="ltr">No. Just sat on the trailer.</div><div class="gmail_extra"><br><div class="gmail_quote">On 27 July 2015 at 11:58, Alan via Personal_Submersibles <span dir="ltr"><<a href="mailto:personal_submersibles@psubs.org" target="_blank">personal_submersibles@psubs.org</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">James were they in the water?<br>
<br>
Sent from my iPad<br>
<div><div class="h5"><br>
> On 27/07/2015, at 10:33 pm, James Frankland via Personal_Submersibles <<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>> wrote:<br>
><br>
> Hi All<br>
><br>
> I have a very peculiar issue. I have an earth fault on the boat.<br>
><br>
> My test consists of holding one probe of the meter on the positive battery terminal and the other to the hull somewhere. I was showing a reading of 24v. So obviously a negative connection somewhere to the hull.<br>
><br>
> I went around everything taking things off and have tracked the fault down to the lights.<br>
><br>
> The lights are the trustfire ones and the negative connection is grounded to the chassis of the light. However, when I fitted the lights, I was aware of this and so insulated the mounting bracket from the light casing itself with a piece of rubber. So theoretically, there is no physical connection from the case to the hull. Only the internal wire.<br>
><br>
> Anyway, if I disconnect the lights and leave them dangling on their wires, there is no earth fault. The lights all work, and the hull is clean of current.<br>
><br>
> So the lights must be leaking back through the connection somehow, but I cant see how. The case is insulated from the mounting bracket with rubber and the brackets are connected to the fibreglass faring, so it shouldn't leak back?<br>
><br>
> Anyway, ive fixed it by insulating the mounting bolts with delrin washers, but I cant see how the earth could return through a piece of rubber and then glass fibre. A mystery unless anyone can see something obvious?<br>
><br>
> Regards<br>
> James<br>
><br>
><br>
</div></div>> _______________________________________________<br>
> Personal_Submersibles mailing list<br>
> <a href="mailto:Personal_Submersibles@psubs.org">Personal_Submersibles@psubs.org</a><br>
> <a href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles" target="_blank" rel="noreferrer">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</a><br>
<br>
_______________________________________________<br>
Personal_Submersibles mailing list<br>
<a href="mailto:Personal_Submersibles@psubs.org">Personal_Submersibles@psubs.org</a><br>
<a href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles" target="_blank" rel="noreferrer">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</a><br>
</blockquote></div><br></div>