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Old 05-04-2011, 16:11   #16
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Do not solder high current crimp connectors such as battery lead terminals . It's very difficult not to have partial dry joints and the resulting higher impedance can generate local heating. Invest in a proper high capacity crimp tool or have the terminals professionally crimped on.

I have elucidated my views on tinned wire elsewhere. I don't beleive it's needed except in areas subject to excessive moisture or damp. European boats don't use it in general and I've never seen any significant corrosion. My own is 22 years old and uses untinned wire , no problems.

But to each his own.


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Old 05-04-2011, 16:29   #17
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Re: Thoughts on Welding Cable

Welding cable is often neoprene sheathed, whereas Marine (tinned) battery cable often has a PVC coating which is fuel/oil resistant. The tin is an added benefit where corrosion is concerned

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Old 05-04-2011, 16:33   #18
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Re: Thoughts on Welding Cable

Originally Posted by roverhi View Post
Welding cables are designed to be flexible so they are made with small diameter wire which is very prone to corrosion problems. They will handle the current as well as similar sized regular electrical cable till corrosion gets them and it will, eventually. That will increase resistance, heat buildup to the point of becoming a fire hazard.
We have seen that very issue in fresh water. If you're around salt, well multiply by ?

Originally Posted by bangkaboat View Post
From the perspective of one who was a shipyard steelworker, I'd recommend getting the tinned marine wire. Weld cable will, of course, work but won't last as long. Best of luck with the re-wire job, better you than me!
I'm not putting my name on anything but tinned

Originally Posted by cburger View Post
I am thinking that I will cut back slightly on the wire ends to see if I actually have a corrosion issue going on further up the cable. If the wire still looks like it needs to be replaced I will seek the advice of a credible surveyor.
Please report your findings.
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Old 05-04-2011, 17:14   #19
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Re: Thoughts on Welding Cable

Practical Sailor did testing comparing tinned and un-tinned wire. I think its last months issue. They seem to conclude that the real issues are in the crimp/solder/shrinkwrap installation. I'll be buying 4/0 welding cable for my windlass installation.

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