Cruisers Forum
 


Join CruisersForum Today

Reply
 
Thread Tools Rate Thread Display Modes
Old 07-09-2009, 12:46   #31
Commercial Member
 
CharlieJ's Avatar

Cruisers Forum Supporter

Join Date: Dec 2008
Location: St. Petersburg, FL
Boat: Gulfstar Long Range Trawler; 53'; BearBoat
Posts: 837
As long as the "Primary Ground Bus", the "Secondary Ground Bus" and the B- bus bar on the power panel are connected by conductors that will not cause any appreciable voltage drop, your diagram is fine.
__________________

__________________
Charlie Johnson
JTB Marine Corporation
"The Devil is in the details and so is salvation."
CharlieJ is offline   Reply With Quote
Old 07-09-2009, 12:58   #32
Registered User
 
TritonSailor's Avatar

Join Date: Aug 2009
Location: CT
Boat: Pearson Triton 28'6" S/V Alcyone
Posts: 88
Images: 14
Send a message via Yahoo to TritonSailor
Clearsea,

What program are you using to illustrate the schematic. I need that !


Thanks,

Jeff
__________________

__________________
KB1SYV
"What the boat wants, the boat gets"

"If one does not know to which port is sailing, no wind is favorable."
TritonSailor is offline   Reply With Quote
Old 07-09-2009, 13:53   #33
Moderator Emeritus
 
GordMay's Avatar

Join Date: Mar 2003
Location: Thunder Bay, Ontario - 48-29N x 89-20W
Boat: (Cruiser Living On Dirt)
Posts: 31,592
Images: 240
As Charlie indicates, your Auxiliary Negative* Busí are OK. In fact, itís normal good practice to provide a Neutral Bus Bar at the Distribution panel (such as your Secondary Bus appears), and cable it back to a Main Ground Bus.

The objection is to utilizing a single (shared or common) Negative Conductor to serve more than one Positive branch circuit conductor.

* Like the Neutral Conductor on shore-side AC systems, DC Negative Conductors are not Ground wires, even though they are grounded. Hence they most properly called Negative (return) conductors.
__________________
Gord May
"If you didn't have the time or money to do it right in the first place, when will you get the time/$ to fix it?"



GordMay is offline   Reply With Quote
Old 07-09-2009, 14:04   #34
Provocateur & Raconteur
 
knottybuoyz's Avatar

Cruisers Forum Supporter

Join Date: Nov 2005
Location: Iroquois, Ontario
Boat: Bateau.com TW31 Modified
Posts: 3,583
Images: 87
Quote:
Originally Posted by TritonSailor View Post
What program are you using to illustrate the schematic. I need that !
Looks like Visio, that's what I use.
Attached Files
File Type: pdf Visio-kbiii-elec-layout-planbxxx.pdf (192.2 KB, 128 views)
__________________
Yours Aye! Rick
~^~^~^^~^~^~^~^~^~^~^~~^~^~~^~^~^^~~^~^
"It's not the boat "you built" until you've sworn at it, bled on it, sweated over it, cried beside it and then threatened to haul the POS outside and burn it!"
knottybuoyz is offline   Reply With Quote
Old 07-09-2009, 15:18   #35
Registered User

Join Date: Feb 2009
Posts: 110
Quote:
Originally Posted by TritonSailor View Post
Clearsea, What program are you using to illustrate the schematic.
Corel Draw.
__________________
clearsea is offline   Reply With Quote
Old 07-09-2009, 15:20   #36
Registered User

Join Date: Feb 2009
Posts: 110
Quote:
Originally Posted by GordMay View Post
itís normal good practice to provide a Neutral Bus Bar at the Distribution panel (such as your Secondary Bus appears), and cable it back to a Main Ground Bus.
Just to be clear, the House Panel is intended to be a panel that contains both positive and negative busses. The Secondary Bus is an example of a bus bar a few feet away from the panel, in another compartment. Still OK?
__________________
clearsea is offline   Reply With Quote
Old 07-09-2009, 16:02   #37
Commercial Member
 
CharlieJ's Avatar

Cruisers Forum Supporter

Join Date: Dec 2008
Location: St. Petersburg, FL
Boat: Gulfstar Long Range Trawler; 53'; BearBoat
Posts: 837
Clearsea-As long as the voltage drop between the B- busses is negligible, there is no problem. I typically install a bus bar to collect the B- from each battery then connect that bus bar to the engine (ABYC E-11 requirement) and to another bus bar behind the power panel with heavy conductors. The bus bar behind the panel is a BS 150 A with 20 #8 screws. That is where all of the returns are attached. More than 20 returns? Daisy chain another bus bar with heavy conductor. The supplied bus bar on the power panel is connected to the auxiliary bus bar with...you guessed it...heavy conductor although I generally do not attach any of the returns to the power panel bus bar and use the panel installed bus bar for indicating lights, etc. I do this because I can get a cleaner install by going to the auxiliary bus bar.
__________________

__________________
Charlie Johnson
JTB Marine Corporation
"The Devil is in the details and so is salvation."
CharlieJ is offline   Reply With Quote
Reply

Thread Tools
Display Modes Rate This Thread
Rate This Thread:

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


Similar Threads
Thread Thread Starter Forum Replies Last Post
Boat-Shipping Experiences? thims Product or Service Reviews & Evaluations 6 07-01-2010 14:18
Engine Bay Makeover - Rewiring - Including Engine Removal! blahman Electrical: Batteries, Generators & Solar 52 02-12-2009 10:01
Rewiring a relic--power advice? Electrical gurus? Sinuous Electrical: Batteries, Generators & Solar 26 20-02-2009 21:54
Winterizing Experiences theonecalledtom Construction, Maintenance & Refit 1 13-01-2009 07:31
your thoughts and experiences please hooligan971 Liveaboard's Forum 6 16-11-2006 19:18



Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 09:24.


Google+
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.