Re: [PSUBS-MAILIST] Electrical thru-hulls

[Jon Wallace <jonw@psubs.org>]

Hi Frank,

I wonder if you meant brass rather than copper in reference to the 
threaded rod.  I know they have brass threaded rod but have never seen 
it in copper.  What size thread are you planning on using? 

Jon



ShellyDalg@aol.com wrote:
> Hi Brent. I'll be using female/female bell reducers with the small end 
> threaded onto the nipple, and the large end receiving a hose barb 
> fitting for attachment of the clear plastic tubing.
> The wires that go thru the epoxy aren't really wires, but are copper 
> threaded rod, so the epoxy sticks and holds the rods in place, and the 
> surface area of copper to epoxy is greatly increased. Plus, the copper 
> all-thread is easy to find, they have it at the local hardware store. 
> The wires connecting from the potted rods to the batteries ( inside 
> ) or to the motors ( outside ) have a longish socket type connector to 
> minimize resistance and heat build-up. I don't think you can just put 
> wires in the epoxy, that will leak under high pressure. You need a 
> shoulder or threads or something to keep the rods sealed in the epoxy. 
> With oil compensation under high pressure, it's possible for the oil 
> to be pushed past a smooth wire in epoxy. Frank D.
>
> ------------------------------------------------------------------------




************************************************************************
************************************************************************
************************************************************************
The personal submersibles mailing list complies with the US Federal
CAN-SPAM Act of 2003.  Your email address appears in our database
because either you, or someone you know, requested you receive messages
from our organization.

If you want to be removed from this mailing list simply click on the
link below or send a blank email message to:
	removeme-personal_submersibles@psubs.org

Removal of your email address from this mailing list occurs by an
automated process and should be complete within five minutes of
our server receiving your request.

PSUBS.ORG
PO Box 53
Weare, NH  03281
603-529-1100
************************************************************************
************************************************************************
************************************************************************