Reply
 
Thread Tools Search this Thread Display Modes
 
Old 02-14-2015, 11:38 PM   #1
Senior Member
 
Tunajoe's Avatar
 
City: Ventura
Vessel Name: Tatanka
Vessel Model: 32' Nordic Tug
Join Date: Aug 2014
Posts: 240
Bonding question

I just finished bonding my AC raw water strainer for insurance purposes.

I was having a discussion with a boating buddy of mine who also has a Nordic Tug and he wanted to know if my rudder was bonded.
I replied that I had zincs on my rudder, so I thought it didn't need to be bonded.

That got me to thinking...... I thought the bonding was to my engine.
He said it should be run to the large stern zinc plate.

Now I'm confused

Can someone give me some clarity on this?
Tunajoe is offline   Reply With Quote
Old 02-15-2015, 12:34 AM   #2
Guru
 
Scary's Avatar
 
City: Walnut Grove Ca
Vessel Name: Cary'D Away
Vessel Model: Hatteras 48 LRC
Join Date: Apr 2012
Posts: 887
New Boatbuilders Home Page - Print Page - Basic Electricity Page 14 - Grounding Connections http://www.syc.com.au/wp-content/upl...sy-SYC.pdfThis may help, There are two schools of thought on grounding and bonding. Only 1 abyc
Scary is offline   Reply With Quote
Old 02-15-2015, 01:12 AM   #3
Senior Member
 
Tunajoe's Avatar
 
City: Ventura
Vessel Name: Tatanka
Vessel Model: 32' Nordic Tug
Join Date: Aug 2014
Posts: 240
Ok, makes a little more sense now.

Thanks for the link
Tunajoe is offline   Reply With Quote
Old 02-15-2015, 05:00 AM   #4
Senior Member
 
Lobstah's Avatar
 
City: Bucksport, Maine
Vessel Name: T/T Whistful
Vessel Model: Boat US 12' Inflatable
Join Date: Jul 2011
Posts: 242
Need to trim the "This" off the end of the second link in order for it to work Needs a "space" between .pdf and This

Great links, thanks for posting.

Jim
Lobstah is offline   Reply With Quote
Old 02-15-2015, 10:35 AM   #5
Senior Member
 
On The Rocks's Avatar
 
City: Palm Springs CA
Vessel Name: On The Rocks
Vessel Model: Gulf Star MKII
Join Date: Apr 2012
Posts: 109
Nice presentation but there are two things I'm not clear on. The wiring diagram they show does not have any bonding to the engine block other than via the shaft brush. Is that OK? Second, I think there was a typo when describing the required wire size? Unless I'm reading it wrong it says minimum 4 AWG but they reccommend 6 or 10. Why reccomend smaller than the minimum?

Maybe I should finish my coffee and re-read 😜
On The Rocks is offline   Reply With Quote
Old 02-15-2015, 11:22 AM   #6
Guru
 
Edelweiss's Avatar
 
City: PNW
Vessel Model: 1976 Californian Tricabin LRC
Join Date: May 2011
Posts: 1,860
All my boats had bonded systems, until I bought my Californian. They came from the factory without bonding, only shaft and rudder zincs and a zinc pencil in the cooler and I've never bothered to change it. But I've had no problems, this has always been a mystery to me,.
__________________
Larry B
Careful . . .I Have a Generator and I'm not afraid to use it !
Edelweiss is offline   Reply With Quote
Old 02-15-2015, 11:23 AM   #7
Guru
 
psneeld's Avatar
 
City: Ft Pierce
Vessel Name: Sold
Vessel Model: Was an Albin/PSN 40
Join Date: Oct 2011
Posts: 28,149
Are they using the negative from the battery to the block as that part of the bonding system and then just bonding system to the negative ground block?

Just got the link to work....seems like that is what is inferred but I believe you are still supposed to have a separate bonding wire.
psneeld is offline   Reply With Quote
Old 02-15-2015, 11:43 AM   #8
TF Site Team
 
Bacchus's Avatar
 
City: Seneca Lake NY
Vessel Name: Bacchus
Vessel Model: MS 34 HT Trawler
Join Date: Nov 2014
Posts: 7,828
On The Rocks
I think it's that the diagram refers to the "Bonding System" and they define that as...
"A bonding system links all submerged metal to be protected with each other and the anode on the transom. "

What they leave out are all the other grounds that are not submerged metal... including engine.

Re: wire size the text is confusing as they call out sizes as both mm and AWG - 6mm & 10mm ARE larger than 4mm but then they throw in AWG at the end of statement - confusing at best.
__________________
Don
2008 MS 34 HT Trawler
"Bacchus"
Bacchus is offline   Reply With Quote
Old 02-17-2015, 12:00 PM   #9
Senior Member
 
On The Rocks's Avatar
 
City: Palm Springs CA
Vessel Name: On The Rocks
Vessel Model: Gulf Star MKII
Join Date: Apr 2012
Posts: 109
Was looking at my seacocks the other day and thinking about this bonding discussion. The bonding wires are attached to the base of the seacoks with a stainless steel hose clamp. Seems like using two dissimmilar metals (I guess three if you count the copper wire) is not a good idea?

Also noticed bonding wires attached to the base of the PSS dripless shaft seals also with hose clamps, very green with corrosion. Seems like that application serves no purpose as the hose clamp holds the rubber shaft bellows to the frp shaft tube, no metal there at all. Any reason not to remove them (the wires not the clamps &#128540?
On The Rocks is offline   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


» Trawler Port Captains
Port Captains are TF volunteers who can serve as local guides or assist with local arrangements and information. Search below to locate Port Captains near your destination. To learn more about this program read here: TF Port Captain Program





All times are GMT -5. The time now is 04:12 AM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2024, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2006 - 2012