Splicing wire

[JohnC]

Just an informational question - I have always stayed away from solder for marine connectors for fear of galvanic action (solder being a dissimilar metal). I have tried to match tinned mechanical connectors made from the same stuff as the tinned wire. I am very comfortable with a soldering iron, certainly the best way to ensure a forever connection. I just don't use it on boats.
Have you had any trouble with corrosion at the solder?

[flyingfrizzle]

Originally Posted by NoBones

Ditto on Frizz...



Also use only tin coated copper wire over anything else...



Later

This is also a must. Glad you brought that up.

Originally Posted by JohnC

Just an informational question - I have always stayed away from solder for marine connectors for fear of galvanic action (solder being a dissimilar metal).
Have you had any trouble with corrosion at the solder?

I think the key has to do with what you said about it being sealed. Tin coated wire seals the copper, The solder seals the wire and fills the air spare around the strands, the wire jacket also seal the wire and the heat shrink with glue seals the air from all under it. Keeps the salt air and moisture out of it. There could be some slight reactions between the dissimilar metals but it will be minor in comparison to salt air or moisture.

[wattaway2]

Agree completely on the tinned wire but I’m constantly amazed how many bilge pump‘s and other marine equipment comes with just standard copper wire you would think that they would know better of course cost is always the factor

[Capt Terry]

Didn’t notice whether the wire was tinned but just replaced a still working Rule bilge pump which was perhaps 25+ years old. I also have a much newer backup.