Windlass wiring - SailNet Community

   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
 Not a Member? 
  #1  
Old 01-09-2007
Member
 
Join Date: Nov 2000
Posts: 71
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 15
aphil138 is on a distinguished road
Windlass wiring

I'm sure this bring out many differing opinions.
Windlass installation - APPROX AMP DRAW = 90-130(12V)
Trying to decide - 10% or 3% loss
According to the books:
@3% 100 feet of cable = 4/0 cable
@10% 100 feet of cable = 2/0 cable

Marine Battery cable for these sizes are in the 7 - 10. dollars a foot range... YIKES

If use welding cable - 4/0 is about 3.14/ft delivered.
So I can use the 3% loss figures for more power to the motor but I risk the corrosion issue of having welding cable.
Although I could use welding cable where it would be protected - bilge etc... and use the tinned wire for the connections where exposed..
Where to put the money - bigger cable vs better wire??
Whats a sailor to do.
alan
Reply With Quote Quick reply to this message Share with Facebook
  #2  
Old 01-09-2007
Junior Member
 
Join Date: Sep 2006
Posts: 12
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
thegolux is on a distinguished road
Why not put a battery up close to the windlass? Then your cable run is only what you need for charging. I know that puts more weight forward, and for the price of a battery, you can buy a lot of cable, but still... Just asking.
Reply With Quote Quick reply to this message Share with Facebook
  #3  
Old 01-09-2007
.
 
Join Date: Nov 2006
Posts: 10,851
Thanks: 0
Thanked 4 Times in 2 Posts
Rep Power: 13
Giulietta is just really nice Giulietta is just really nice Giulietta is just really nice Giulietta is just really nice Giulietta is just really nice
Thegolux

that is exactly what I did, and actually I did it because the way the cables would have to travel inside the boat would require a lot of cable, and it turns out, that the battery is actually lighter than all the cable I needed!
Reply With Quote Quick reply to this message Share with Facebook
  #4  
Old 01-09-2007
PBzeer's Avatar
Wandering Aimlessly
 
Join Date: Nov 2002
Location: Cruising
Posts: 20,621
Thanks: 0
Thanked 88 Times in 85 Posts
Rep Power: 15
PBzeer has a spectacular aura about PBzeer has a spectacular aura about PBzeer has a spectacular aura about
If you can't place the battery forward, you're better off to go oversized than not. And use marine grade cable, it's worth it in the long run.
__________________
John
Ontario 32 - Aria

Free, is the heart, that lives not, in fear.
Full, is the spirit, that thinks not, of falling.
True, is the soul, that hesitates not, to give.
Alive, is the one, that believes, in love.
JCP


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
- Website & Blog

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Reply With Quote Quick reply to this message Share with Facebook
  #5  
Old 01-10-2007
sailingdog's Avatar
Telstar 28
 
Join Date: Mar 2006
Location: New England
Posts: 43,291
Thanks: 0
Thanked 11 Times in 11 Posts
Rep Power: 13
sailingdog is just really nice sailingdog is just really nice sailingdog is just really nice sailingdog is just really nice sailingdog is just really nice
Definitely use marine grade cable, especially on a cable that heavy. Do you have any idea of how much of a fire hazard the welding cable would be after it starts to corrode??? A small battery up forward, with more modest cabling is probably a better way to go, both weight wise and logistically. Also, the bilge is not really protected for wiring on most sailboats, having water in most... and the real problem with corrosion is the humid salt-laden air...which is pretty much unavoidable on a sailboat. If you want to know how bad it is...take a penny and tape it out on the nav console and see how long it takes to start turning green.
__________________
Sailingdog

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

Telstar 28
New England

You know what the first rule of sailing is? ...Love. You can learn all the math in the 'verse, but you take
a boat to the sea you don't love, she'll shake you off just as sure as the turning of the worlds. Love keeps
her going when she oughta fall down, tells you she's hurting 'fore she keens. Makes her a home.

—Cpt. Mal Reynolds, Serenity (edited)

If you're new to the Sailnet Forums... please read this
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
.

Still—DON'T READ THAT POST AGAIN.
Reply With Quote Quick reply to this message Share with Facebook
  #6  
Old 01-10-2007
SailorMitch's Avatar
Senior Moment
 
Join Date: Nov 2005
Location: MD
Posts: 1,931
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 10
SailorMitch will become famous soon enough
As for buying cable, try this place. Prices are tough to beat for marine grade cable:
http://shop.genuinedealz.com/
__________________
SailorMitch
Sailing winged keels since 1989.
1.20.09 Bush's last day the end of an error !! Hopefully we still have a constitution and economy left by then.


"Compassion and tolerance are not a sign of weakness, but a sign of strength." The Dalai Lama


good planets are hard to find-- a song by steve forbert


I have but one lamp by which my feet are guided, and that is the lamp of experience. I know no way of judging the future but by the past.-- Patrick Henry.
Reply With Quote Quick reply to this message Share with Facebook
  #7  
Old 01-11-2007
Valiente's Avatar
Senior Member
 
Join Date: Jun 2006
Location: Toronto
Posts: 5,491
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 10
Valiente has a spectacular aura about Valiente has a spectacular aura about
Quote:
Originally Posted by PBzeer
If you can't place the battery forward, you're better off to go oversized than not. And use marine grade cable, it's worth it in the long run.
I'm facing this very decision, and I have decided that a dedicated flooded battery up forward with a separate charger (a recycled 20 amp West Marine) and very short cables is the way to go. I will top it up with solar panels or a Honda genset underway. This seems elaborate, I know, but my main house banks will be six AGMs low and in the middle of the boat (22 foot run forward to the forepeak "workshop", and my charger/inverter system would need resetting and then rerouting just to charge a flooded cel forward, plus the fact that I want to keep my collision bulkhead as intact as possible.

This way, I will use maybe 20 feet of 2/0 AWG for ALL my batteries and to/from the inverter. Seems the best plan rather than snaking heavy cable forward.

Also, if the windlass battery goes kaput, I can always snatch a topped-up AGM and it's a "drop in".
Reply With Quote Quick reply to this message Share with Facebook
  #8  
Old 01-11-2007
sailingdog's Avatar
Telstar 28
 
Join Date: Mar 2006
Location: New England
Posts: 43,291
Thanks: 0
Thanked 11 Times in 11 Posts
Rep Power: 13
sailingdog is just really nice sailingdog is just really nice sailingdog is just really nice sailingdog is just really nice sailingdog is just really nice
Valiente-

Why not put a dedicated AGM up forward, that is of the same type/size as the ones in your house bank. That would certainly make dropping one in for the other easier, and AGM batteries are better at holding their charge over long periods of time, which is often the case with a windlass... you drop the hook, stay a few days, raise the hook, make a long passage... etc.
__________________
Sailingdog

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

Telstar 28
New England

You know what the first rule of sailing is? ...Love. You can learn all the math in the 'verse, but you take
a boat to the sea you don't love, she'll shake you off just as sure as the turning of the worlds. Love keeps
her going when she oughta fall down, tells you she's hurting 'fore she keens. Makes her a home.

—Cpt. Mal Reynolds, Serenity (edited)

If you're new to the Sailnet Forums... please read this
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
.

Still—DON'T READ THAT POST AGAIN.
Reply With Quote Quick reply to this message Share with Facebook
  #9  
Old 01-11-2007
1970Columbia34's Avatar
Senior Member
 
Join Date: Aug 2006
Location: Bay City, Mi
Posts: 319
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 9
1970Columbia34 is on a distinguished road
Send a message via AIM to 1970Columbia34 Send a message via MSN to 1970Columbia34 Send a message via Yahoo to 1970Columbia34
Can some one explain what the diffrence is between say 4awg and 4/0awg wire. and which is need for a windlass?
Reply With Quote Quick reply to this message Share with Facebook
  #10  
Old 01-11-2007
Member
 
Join Date: Feb 2006
Posts: 37
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
I-33 is on a distinguished road
AWG wire sizes

This info is easily available on the internet--just Google *AWG wire sizes*

AWG 0000 (4/0) is .46-inch diameter and can carry about 300 amps

AWG 4 is .2043 in diameter and can carry about 60 amps

Remember, the higher the AWG wire size number, the smaller the wire.
__________________
Gil
s/v "Truthsayer"
Reply With Quote Quick reply to this message Share with Facebook
Reply

Quick Reply
Message:
Options

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

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.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

 
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


Similar Threads
Thread Thread Starter Forum Replies Last Post
Wiring Windlasses SailNet Gear and Maintenance Articles 0 09-19-2002 09:00 PM
Choosing and Installing an Electric Windlass Sue & Larry Gear and Maintenance Articles 0 09-06-2002 09:00 PM
The Great Windlass Debate SailNet Seamanship Articles 0 11-30-2001 08:00 PM
The Great Windlass Debate SailNet Gear and Maintenance Articles 0 11-30-2001 08:00 PM
Wiring Windlasses Sue & Larry Gear and Maintenance Articles 0 05-19-2001 09:00 PM


All times are GMT -4. The time now is 03:44 AM.

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.