Originally Posted by denverd0n
Solder makes a great electrical connection. No doubt about that. But there is much more to it than just an electrical connection, especially on a boat.
The problem with soldering connections on a boat is that practically everything on a boat moves and flexes. If you solder connections you absolutely MUST support the connection so that it CANNOT flex! Otherwise you are just asking for problems. Just because you know that solder makes a really good electrical connection does not mean that is the best for every (or even ANY) connection on a boat.
Well, my boat has had plenty of solder connections since it was new in 1976, none of them have failed, true, some of the components than support them have failed such as switches and fuseholders. Flexing on a boat? Not only do I know how to solder, but as a aircraft wiring
inspector I can honestly say that I never saw a solder joint fail, except internal to equipment
which can still happen. The ABYC does not say NOT to use solder, but to make sure there is not a sharp transistion between the solder joint and a flexible wire. Read a previous post. Good waterproof heatshrink prevents this just as the sleeve does on a crimp does.