we did a study at work (TRW) and found crimped connections made with crimp tools from AMP (American Pamcor) were gas tight and better than soldered.
The tools arent cheap but if reliability is the game - accept no substitutes
From: luv2bsailin <luv2bsailin@yahoo.com>
To: electricboats@yahoogroups.com
Sent: Monday, June 27, 2011 11:59 AM
Subject: [Electric Boats] Re: Converting a Morgan Nelson-Marek 45'
The tools arent cheap but if reliability is the game - accept no substitutes
From: luv2bsailin <luv2bsailin@yahoo.com>
To: electricboats@yahoogroups.com
Sent: Monday, June 27, 2011 11:59 AM
Subject: [Electric Boats] Re: Converting a Morgan Nelson-Marek 45'
I like to coat all connections with silicone grease upon assembly. I also smear the stripped ends of the cables with it before crimping. Some may say this is bad practice, and probably increases resistance slightly, but my theory is that the crimping process displaces most of the grease, which is then squeezed into any remaining voids where it prevents moisture entrapment. Same for bolted connections. I recently inspected one of my early installations that was done this way 6 or 7 years ago. Batteries and cables are in a damp salty bilge and all connections were almost like new. Just some slight discoloration (darkening) of the tin plating on the terminals. A conductive grease is probably better than silicone, but that's what I use (specifically Gly brand. Many chandleries carry it).
Jim
--- In electricboats@yahoogroups.com, Kenneth Long <kelong_2000@...> wrote:
>
>
>
> "There's also the simple fact that connections do age (oxidize) despite
>
> the best we can do, and lose some current-carrying capacity. In my
>
> (quite long) experience with marine electronics, 99% of all wiring
>
> problems happen at the connections."
>
> cover the conductors with something like this? Aluminium service wires into the home are covered in a compound to prevent corrosion. is the practice performed in marine connections?
>
> http://www.rfi-shielding.com/pages/products/compounds.shtml
>
Jim
--- In electricboats@yahoogroups.com, Kenneth Long <kelong_2000@...> wrote:
>
>
>
> "There's also the simple fact that connections do age (oxidize) despite
>
> the best we can do, and lose some current-carrying capacity. In my
>
> (quite long) experience with marine electronics, 99% of all wiring
>
> problems happen at the connections."
>
> cover the conductors with something like this? Aluminium service wires into the home are covered in a compound to prevent corrosion. is the practice performed in marine connections?
>
> http://www.rfi-shielding.com/pages/products/compounds.shtml
>
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