[PSUBS-MAILIST] grounding question

[vbra676539 at aol.com]

Brian,


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.


As to RF noise, it's surely hard on communications, I know that.


Vance



-----Original Message-----
From: brian <brian at ojaivalleybeefarm.com>
To: Personal Submersibles General Discussion <personal_submersibles at psubs.org>
Sent: Mon, Dec 9, 2013 11:06 am
Subject: Re: [PSUBS-MAILIST] grounding question


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 ?

What got me going on this was the grounding considerations for RF for transmitting radio communications.

Brian 

-----Original Message-----
From: "Smyth, Alec" <Alec.Smyth at covisint.com>
Sent 12/9/2013 5:37:36 AM
To: "Personal Submersibles General Discussion" <personal_submersibles at psubs.org>
Subject: Re: [PSUBS-MAILIST] grounding question


Hi Scott,
 
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.
 
Best,

Alec 
 

From: Personal_Submersibles [mailto:personal_submersibles-bounces at psubs.org]On Behalf Of swaters
Sent: Monday, December 09, 2013 12:57 AM
To: Personal Submersibles General Discussion
Subject: Re: [PSUBS-MAILIST] grounding question

 

I connected mine to the electrical pannel through the body of the sub

Thanks,

Scott Waters

 

 

 

 


Sent from my U.S. Cellular© Smartphone


brian <brian at ojaivalleybeefarm.com> wrote:
Hi All,
              On the K boats where does one normally connect the ground to the sub? 

Brian

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