Boats on hard ground so lets talk grounds - Page 2 - SailNet Community
LinkBack Thread Tools
post #11 of 13 Old 12-16-2009
Senior Member
mitiempo's Avatar
Join Date: Sep 2008
Location: Victoria B.C. Canada
Posts: 7,599
Thanks: 0
Thanked 101 Times in 92 Posts
Rep Power: 9
Yes there should. Not only does ABYC call for an AC ground to the central ground on the engine block but it makes common sense. Invertors and chargers are a bridge between the AC and DC systems. If an AC item shorts or a case becomes energized the current has to have somewhere to go. All AC circuits should be GCFI protected. New ABYC regs call for ECLIs to be installed on all new boats (basically a "whole boat" GCFI. (E-11.11.1)

Living aboard in Victoria Harbour
mitiempo is offline  
Quote Quick Reply Share with Facebook
Sponsored Links
post #12 of 13 Old 12-16-2009
Senior Member
Join Date: Aug 2007
Posts: 306
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 9
ABYC, A-28; 28.4.1 says they all get connected together, then to shore ground.
Howard Keiper
thekeip is offline  
Quote Quick Reply Share with Facebook
post #13 of 13 Old 12-17-2009
Senior Member
patrickrea's Avatar
Join Date: Aug 2007
Location: Toronto
Posts: 407
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 9
As thekeip says, the DC and AC grounds must be bonded together as per ABYC. I use a 100amp BlueSea busbar to connect the AC, DC and the safety grounds that lead to my rigging together. I highly recommend a GALVANIC ISOLATOR on the AC ground, between the shorepower inlet and breaker panel, to reduce stray current that may be running around the DC system or in the water. It will save your zincs.

Patrick Rea

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

1978 30' Hughes Northstar 1000
1964 20' Bertram Moppie
patrickrea is offline  
Quote Quick Reply Share with Facebook

Quick Reply

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:
Please enter a password for your user account. Note that passwords are case-sensitive.


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:


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
Show Printable Version Show Printable Version
Email this Page Email this Page

Similar Threads
Thread Thread Starter Forum Replies Last Post
Windward performance deseely General Discussion (sailing related) 21 04-01-2012 03:42 PM
High Tech vs traditional-Comments? Pangaea General Discussion (sailing related) 38 08-07-2007 02:07 AM
buying first boat jerrycooper14 Boat Review and Purchase Forum 21 04-23-2002 03:15 PM

Posting Rules  
You may post new threads
You may 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 On
Trackbacks are On
Pingbacks are On
Refbacks are On

For the best viewing experience please update your browser to Google Chrome