I've been doing this type of work for many years in the military and civilian environments. I'm always learning new techniques and invite suggestions.
Here are a few essential tips that come to mind:
1. Use marine grade shrink tubing since it has a gel type material inside that makes a water tight seal after shrinking.
2. Marine grade wiring ... of course.
3. There will be some occasions when you will want to use crimp type ring, spade or fork terminals. If they are in areas where there is considerable humidity or moisture I will also fill the crimp with solder. In these cases I use crimps without plastic collars and then use shrink tubing to cover the connection. The area inside the crimp between the wire strands is very susceptible to collecting grease & dirt and then corrosion. There are other methods of protecting connections, some less effective and some more extreme depending on the location of the wiring.
4. There are also crimp type connectors that have a shrink sleeve attached. They also work well for certain areas.
5. Don't leave extra wire for most DC wiring. It's best to cut to exact length unless you think you'll need to remove a device for servicing. (i.e. pulling a light socket out to replace a bulb) This will reduce the usual rats nest that I find on most boats,
6. If you have data and control cables for electronic devices stow and secure any excess behind a panel rather than in a storage space where it could be damaged while sailing.
7. I prefer to use red and yellow wire for DC supply lines and black and white for AC supply lines. In AC applications black is hot and white is neutral (USA code, I don't know about Euro codes). For DC applications black is ground. If you use red and black for DC wiring and also have AC aboard, be careful!!!!!
8. Secure wires with plastic ties and mounting devices. There are so many different types available. Choose what works for you. I usually secure wire every 6 to 9 inches in most areas, maybe up to 12' in larger areas.
9. Drill pilot holes for mounting screws to avoid spliting wood and cracking fiberglass. I use a drill stop so I only drill as deep as needed.
10. Mounting screws.... stainless steel. Nuff sed!
11. Never, never, never, never, never use black tape on a boat. There is always a better alternative!!!!!
I could keep writing a book on this; many have. Having a reference book handy is also advisible!
Good luck. If you have any specific questions I'd be happy to help.
John
Southern Comfort Too (still sailing)
