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 Catalina 25 Specific Forum
 Mast Wiring & Spreader Lights		  New Topic  Topic Locked
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weluvlife
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166 Posts
Initially Posted - 09/29/2005 :  21:46:50  Show Profile  Visit weluvlife's Homepage
Hello,

I'm planning to replace the wiring in my mast. I currently
have spreader lights in addition to the steaming/fordeck light and the anchor light.

I'd like to run the wires through pvc pipe, but would like to see a drawing or picture illustrating the specifics in the area of the spreaders. I'm concerned that my internal halyards will rub on the wires that leave the pvc to the spreader lights and the steaming light.

Some have suggested mounting the pvc to the back side of the mast against the sail slot area. This way I will end up with exposed wires from the pipe to the steaming light/spreader light.

I know this topic has been covered so often, but for some reason, even after scanning the archives, I'm still concerned.

Thanks,


Mark Eichman
Lake Don Pedro, CA
'86 C25 TR SK
www.lakedonpedrosailingclub.org
Mark Eichman
Lake Don Pedro,CA
www.lakedonpedrosailingclub.org
'86 c25 TR, SK
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Leon Sisson
Master Marine Consultant

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USA
1893 Posts
Response Posted - 09/29/2005 :  22:25:23  Show Profile  Visit Leon Sisson's Homepage
Mark,

I know exactly what you're talking about. I have a combination steaming and foredeck light near the spreaders. I used two sections of PVC in the back corner of the mast for the wiring -- one from near the bottom to just below the spreaders, the other from just above the spreaders to near the masthead.

After installing the wiring, I installed a third piece of thinwall PVC, maybe 1-1/4" or so in diameter. That piece was a foot or two longer than the gap between the two wiring pipes. I shoved that third piece in front of the spreader hardware so it overlapped both pipe ends where the wiring was exposed near the spreaders. I then fished my internal halyards through that short section of pipe as they passed the spreaders, thus both protecting the exposed wires from the halyards, and protecting the halyards from the spreader mount hardware. That third piece of PVC could be riveted in place like the other two, being sure to use the shortest possible pop rivets. However, on my mast, that halyard guide pipe was a very snug jam fit, so no additional fastening seemed to be needed.

-- Leon Sisson
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weluvlife
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166 Posts
Response Posted - 09/29/2005 :  22:50:21  Show Profile  Visit weluvlife's Homepage
Hello Leon,

You've explained yourself very clearly. What you have done appears to be a good idea and a fix for my concerns.

Although, how is the angle of attack for the two halyards as they enter into the top of the short section of pvc pipe? I'm thinking that there could be some chafing between the line and the top edge of the pipe? Put me to ease about this please. smiles...

Thanks,



Mark
www.lakedonpedrosailingclub.org
'86 c25 TR SK
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Leon Sisson
Master Marine Consultant

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USA
1893 Posts
Response Posted - 09/30/2005 :  17:54:26  Show Profile  Visit Leon Sisson's Homepage
Mark,<blockquote id="quote"><font size="1" face="Verdana, Arial, Helvetica" id="quote">quote:<hr height="1" noshade id="quote">Although, how is the angle of attack for the two halyards as they enter into the top of the short section of pvc pipe? I'm thinking that there could be some chafing between the line and the top edge of the pipe?<hr height="1" noshade id="quote"></blockquote id="quote"></font id="quote">If you calculate or measure the angle and offset between the guide pipe and each halyard, you'll see that the jib halyard barely touches the pipe at all. The angle of the main halyard is the result of an offset of maybe 3" at a distance of 15'(tall rig). I haven't lost any sleep over it yet. In the interest of fanaticism, I suggest you carefully taper and sand the inside ends of the guide pipe before installing it. A small drum sander chucked in a hand drill should make quick work of that.

-- Leon Sisson
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Notice: The advice given on this site is based upon individual or quoted experience, yours may differ.
The Officers, Staff and members of this site only provide information based upon the concept that anyone utilizing this information does so at their own risk and holds harmless all contributors to this site.