SailNet Community - Reply to Topic

   Search Sailnet:

 forums  store  


Quick Menu
Forums           
Articles          
Galleries        
Boat Reviews  
Classifieds     
Search SailNet 
Boat Search (new)

Shop the
SailNet Store
Anchor Locker
Boatbuilding & Repair
Charts
Clothing
Electrical
Electronics
Engine
Hatches and Portlights
Interior And Galley
Maintenance
Marine Electronics
Navigation
Other Items
Plumbing and Pumps
Rigging
Safety
Sailing Hardware
Trailer & Watersports
Clearance Items

Advertise Here






Go Back   SailNet Community > On Board > Gear & Maintenance > Electrical Systems > Mast wiring strain relief
 Not a Member? 


Thread: Mast wiring strain relief Reply to Thread
Title:
  

By choosing to post the reply below you agree to the rules you agreed to when joining Sailnet.
Click Here to view those rules.

Message:
Trackback:
Send Trackbacks to (Separate multiple URLs with spaces) :
Post Icons
You may choose an icon for your message from the following list:
 

Register Now

In order to be able to post messages on the SailNet Community forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
Please note: After entering 3 characters a list of Usernames already in use will appear and the list will disappear once a valid Username is entered.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Click here to view the posting rules you are bound to when clicking the
'Submit Reply' button below


Additional Options
Miscellaneous Options

Click here to view the posting rules you are bound to when clicking the
'Submit Reply' button below


Topic Review (Newest First)
11-03-2012 02:06 PM
pvanv1
Re: Mast wiring strain relief

Quote:
Originally Posted by chef2sail View Post
The old wiring in my mast was run through foam. After years of slight moisture getting in the mast through the head as well as baking in the summer, the foam turned to dust and muddied up my bilge constantly as it came down from inside the mast. I do not suggest this as a long term solution.

Dave
Odd. I did mine 16 years ago, and the pipe insulation (I believe it's a poly-whatchamacallit material is still like new. I lower the mast each winter as part of winter storage, and the foam now looks like it did on day one. Of course, that also holds true for the insulation I actually used for my plumbing, back in 1985. Maybe the foam in Dave's mast was something other than pipe insulation.
11-03-2012 01:48 PM
chef2sail
Re: Mast wiring strain relief

The old wiring in my mast was run through foam. After years of slight moisture getting in the mast through the head as well as baking in the summer, the foam turned to dust and muddied up my bilge constantly as it came down from inside the mast. I do not suggest this as a long term solution.

Dave
11-03-2012 10:40 AM
pvanv1
Re: Mast wiring strain relief

Quote:
Originally Posted by lillia28 View Post
I am planning on taking Lily's mast down this winter, and re-wiring it, and getting the various lights working. There is an anchor light, steaming light, deck light and VHF antenna wire. I'm not worried about the actual wiring, but about strain relief, that is the thought of 35 feet of wiring hanging from a crimp connection for the next 5 - 10 years. I am thinking of getting some tubular webbing, and wire-tieing the harness to the webbing, then bolting or riveting the webbing to the mast top and bottom, hopefully with enough tension to keep the wires from slapping. My original thought was to use the long zip tie spider method to prevent slap, but I've got internal halyards and I'm not 100% sure that would work. Any thoughts, suggestions or cautions are welcome.
Thanks in advance.

lou
I ran my wiring inside foam pipe insulation. It's light, slippery, and no slapping at anchor. The halyards slide right on by. I did strain relief at the upper terminations, and the wire is strong enough to support its own weight for only a 35' vertical.
10-26-2012 11:07 PM
chef2sail
Re: Mast wiring strain relief

Also don't forget a least a couple of messenger lines
10-26-2012 12:36 PM
asdf38
Re: Mast wiring strain relief

Quote:
Originally Posted by lillia28 View Post
Again , thanks for the suggestions.
asdf38, that dorade box looks great. As not THAT expensive compared with new Dri Plugs, which are about +/- $50.00.
I am planning on all LED bulbs, except the deck light, but figure on using the original gauge wire for strength. I was also planning a loop at the top for extra wire wire ties to hold the weight. I saw this originally on sailing anarchy, but using braided dyneema, and running the wires through as a soft conduit. I thought the dyneems was overkill, and thought about the webbing. I am sure things will come up during installation.
Lou
Glad you like it. As for lighting, my suggestion: just go all LED. Good LED spreader lights (probably $100-$400 for a pair) are extremely bright with all the usual benefits of LED. If you're putting this much thought into now just get it done and you'll never think about those lights again.

Another comment, while a conduit doesn't actually support the wire it does provide significant strain relief indirectly by preventing the wire from swinging around in the mast, which a soft strain relief wouldn't.
10-26-2012 12:27 PM
lillia28
Re: Mast wiring strain relief

Again , thanks for the suggestions.
asdf38, that dorade box looks great. As not THAT expensive compared with new Dri Plugs, which are about +/- $50.00.
I am planning on all LED bulbs, except the deck light, but figure on using the original gauge wire for strength. I was also planning a loop at the top for extra wire wire ties to hold the weight. I saw this originally on sailing anarchy, but using braided dyneema, and running the wires through as a soft conduit. I thought the dyneems was overkill, and thought about the webbing. I am sure things will come up during installation.
Lou
10-26-2012 07:36 AM
copacabana
Re: Mast wiring strain relief

The PVC pipe conduit that Chef2sail recommends is a great idea. I did the same on my boat when I pulled the mast. I have internal halyards and the PVC conduit was the best way to organize the inside of the mast. To relieve stress on the wires, I pulled them up at the top of the mast and passed them through a clear plastic hose filled with polysulfide. This piece of hose is clamped and holds the weight of the wires, not the wires themselves. The junction box is also a good idea if you ever want to pull the mast again. It also allows you to get your voltmeter on the wires to troubleshoot. If you go with all LED lighting up the mast you can go with much thinner wire. Don't forget to change your fuses or breakers to the appropriate size for the new LED bulbs.
10-22-2012 08:25 PM
chef2sail
Re: Mast wiring strain relief

We dont have any strain releif except at the mast head where it is cale tied. The conduit will prevent it from swinging thus reducing the swing and therefore the strain.

Dave
10-22-2012 07:03 PM
eherlihy
Re: Mast wiring strain relief

My keel stepped mast is 47' high. The electrical cables run through conduit from the base to the top of the mast. The only strain relief for the electrical cables is where they exit the mast. It's been that way for 26 years, and still works.
10-22-2012 01:27 PM
asdf38
Re: Mast wiring strain relief

Quote:
Originally Posted by lillia28 View Post
Dave,
I thought about a conduit,but three things stop me, 1) doesn't address strain, 2) I don' t want to drill too many holes in the mast, 3) can' t figure out how to get the steaming/deck light wires out of the middle of the conduit to the fixtures.

The mast is deck stepped,current system is 3Dri-Plugs, deck,steaming and instrument,and the vhf coax and anchor wire through compression post and exiting in the bilge. I don't like the wires in the bilge at all. Since the mast will not be coming down that often, I'm not sure the Dri-Plugs are necessary. I'm thinking of a cable clam or similar for the through deck, a junction box in the cabin for the light wires, and a direct run for the vhf to the radio. Currently there are no instruments. I am thinking of Tacktick wireless wind instru ments, but that isn't in the budget until 2014 or 15. I will run couple of spare wires for repairs/ additions. I have this crazy hope, that supported wires, to proper connections,LED bulbs and lots of dielectric grease will hold off problems.
Thanks for making me think.
Lou
If you're thinking about adding a through deck fitting consider this. I did quite a bit of shopping and concluded that while a bit expensive, it's the best thing out there. You can kick it, step on it, and add as many wires later on as you want.

I run the wires through this and then to a terminal block nearby inside the boat.



Salty John: Cableport and other fine boat and yacht chandlery products.

http://www.sailnet.com/forums/gear-m...gh-deck-4.html
This thread has more than 10 replies. Click here to review the whole thread.

 
Posting Rules
You may post new threads
You may post replies
You may post attachments
You may edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On


All times are GMT -4. The time now is 06:27 PM.

Add to My Yahoo!         
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
SEO by vBSEO 3.6.1
(c) Marine.com LLC 2000-2012

The SailNet.com store is owned and operated by a company independent of the SailNet.com forum. You are now leaving the SailNet forum. Click OK to continue or Cancel to return to the SailNet forum.