<font color='black' size='3' face='Arial, Helvetica, sans-serif'><font class="Apple-style-span" size="3">Brian,</font>
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<div><font class="Apple-style-span" size="3">Don't confuse the magnetic field in a motor with the electricity that creates it. Your current runs through an insulated system, and won't be a problem unless you get the nasty little trickle of seawater, which would ground the current. THEN you have a problem.</font></div>
<div><font class="Apple-style-span" size="3"><br>
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<div><font class="Apple-style-span" size="3">As to RF noise, it's surely hard on communications, I know that.</font></div>
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<div><font class="Apple-style-span" size="3">Vance<br>
</font><br>
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<div style="font-family: helvetica, arial; font-size: 10pt; color: black; ">-----Original Message-----<br>
From: brian <brian@ojaivalleybeefarm.com><br>
To: Personal Submersibles General Discussion <personal_submersibles@psubs.org><br>
Sent: Mon, Dec 9, 2013 11:06 am<br>
Subject: Re: [PSUBS-MAILIST] grounding question<br>
<br>
<div id="AOLMsgPart_2_819915c7-7031-476c-befb-2000eca22da8">
Hi Alec, Glad I asked this question, I wasn't totally clear on the grounding and suspected there was special wiring on an all metal boat. So on your motors do you have a insulator between the motor shaft and the propeller shaft? and is the motor itself isolated with the mounting hardware ?<br>
<br>
What got me going on this was the grounding considerations for RF for transmitting radio communications.<br>
<br>
Brian <br>
<br>
-----Original Message-----<br>
From: "Smyth, Alec" <<a href="mailto:Alec.Smyth@covisint.com">Alec.Smyth@covisint.com</a>><br>
Sent 12/9/2013 5:37:36 AM<br>
To: "Personal Submersibles General Discussion" <<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>><br>
Subject: Re: [PSUBS-MAILIST] grounding question<br>
<br>
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<div class="MsoNormal"><span style="font-size:11.0pt;font-family:">Hi Scott,</span></div>
<div class="MsoNormal"><span style="font-size:11.0pt;font-family:"> </span></div>
<div class="MsoNormal"><span style="font-size:11.0pt;font-family:">If I understand you correctly, it sounds like you might have wired her as you would a car, with cables for the positive and using the chassis for the negative.
This is a steel boat, so instead of that, what one does is two cables, one for positive and one for negative, but both of them equally isolated from the hull. Else, you are inviting a case of accelerated corrosion.
</span></div>
<div class="MsoNormal"><span style="font-size:11.0pt;font-family:"> </span></div>
<div class="MsoNormal"><span style="font-size:11.0pt;font-family:">Best,</span></div>
<div class="MsoNormal"><span style="font-size:11.0pt;font-family:"><br>
Alec </span></div>
<div class="MsoNormal"><span style="font-size:11.0pt;font-family:"> </span></div>
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<div class="MsoNormal"><strong><span style="font-size:10.0pt;font-family:">From:</span></strong><span style="font-size:10.0pt;font-family:"> Personal_Submersibles [<a href="mailto:personal_submersibles-bounces@psubs.org?">mailto:personal_submersibles-bounces@psubs.org</a>]
<strong>On Behalf Of </strong>swaters<br>
<strong>Sent:</strong> Monday, December 09, 2013 12:57 AM<br>
<strong>To:</strong> Personal Submersibles General Discussion<br>
<strong>Subject:</strong> Re: [PSUBS-MAILIST] grounding question</span></div>
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<div class="MsoNormal">I connected mine to the electrical pannel through the body of the sub</div>
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<div class="MsoNormal">Thanks,</div>
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<div class="MsoNormal">Scott Waters</div>
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<div class="MsoNormal"><span style="font-size:9.0pt;color:#575757">Sent from my U.S. Cellular© Smartphone</span></div>
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<div class="MsoNormal"><br>
brian <<a href="mailto:brian@ojaivalleybeefarm.com">brian@ojaivalleybeefarm.com</a>> wrote:<br>
Hi All,<br>
On the K boats where does one normally connect the ground to the sub?
<br>
<br>
Brian</div>
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