changing mast wiring

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R

Robin

What is the best way to change the wiring in my mast? Any special wire I should use? Is there any way to get a wiring diagram? I was thinking about dropping some in line fuses in the wiring under the starboard settee to prevent panel damage in case of lightning strikes. What does everyone think? Any tips appreciated!
 
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Mark Kissel

Wiring worries.

Robin, Barring any better suggestions from our fellow boaters, the best way to change the wiring may be to use the old wiring to pull the new wiring through. As far as the type of wiring, look for good quality *marine grade*. I think there's a chart in the West Marine or BoatUS catalogue that will help you choose the correct size based on amperage and length. Don't trouble yourself with the in-line fuses for lightning protection. Think about it for a moment, if lightning has enough potential to jump from the cloud down to your mast, do you think that little gap in a fuse will do any good? Mark Kissel Kittiwake/98H240
 
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Jim Rushing

Marine Grade Wiring

Remember, marine grade means that the wire is tinned, ie, no exposed copper surface. Don't forget about the drip loop at the bottom of the mast.
 
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Gene Gruender

Some more to think about

I re-wired the mast on my H37 Cutter a few years ago and used the oppertunity to make some changes. Not sure if this applies to you, but I have 3 deck lights. I rewired it so that each has it's own wire and switch instead of all or nothing. This way I can chose any single light, any two or all three. I also used heavier wire than the original and it increased the light outout from the same sized lights. You might also consider adding a brighter anchor light (Mine is now almost always the brightest in the anchorage, and I like it that way.) If your cruising grounds make it a plus, it would also be a good time to add a tri-color at the top of tha mast. One more thing to remember. Many forget to think about what the ground wire is carrying. It is just as important as the hot wire, and if you don't give it some thought, you will probably undersize it. Think about how many items can be on at once. If your anchor light requires a 14 gauge wire, and your deck lights require a 14 gauge wire, then if you could have both on at the same itme, you probably need a 12 for the ground. In other words, add up all the things that can be on at ance and be sure your ground wire can handle the load of all of them. Of course, if you have seperate ground wires for each light, this doesn't apply. If you have the mast down and apart, you might also consider replacing the coax for your VHF. If you do, get the best coax you can find. It will increase the range of your VHF.
 
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