Cruisers Forum

Join CruisersForum Today

Thread Tools Rate Thread Display Modes
Old 01-03-2014, 18:02   #1
Registered User

Join Date: Feb 2014
Posts: 29
Stray electrical current

Two separate but very related electrical questions I would love some experienced wisdom on.

1. I have a steel boat that is quickly rusting from the outside despite being: blasted, epoxy barrier coated, and properly painted. I suspect there may be some stray current at the marina. Is there a way to test for this?

2. At a different marina a while back I saw a shore power cord drooped in the water. Thought I'd be kind and pull out the slack. As I started lifting I noticed it was two cords connected, and the connector was underwater. It was live and bubbles were pouring out of the connection. I am wondering why the breaker didn't trip. This must have been leaking a significant amount of current into the water? Fortunately no one was zapped, but I imagine that could cause a lot of corrosion quickly.

Now I doubt I'll find anything that obvious around my boat. Assuming current is found, any suggestions on how to locate/remove it? Also I assume it wouldn't take much to attack the steel, or if it's not obvious should I not worry about it? Thanks.

TDC is offline   Reply With Quote
Old 01-03-2014, 20:43   #2
Senior Cruiser
senormechanico's Avatar

Cruisers Forum Supporter

Join Date: Aug 2003
Boat: Dragonfly 1000 trimaran
Posts: 6,104
Re: Stray electrical current

ACK !! The marina MUST BE NOTIFIED !!
Start there.

Memento,homo, quia pulvis es, et in pulverem reverteris.
senormechanico is offline   Reply With Quote
Old 01-03-2014, 20:52   #3
Registered User

Join Date: Oct 2007
Location: virginia
Boat: islandpacket
Posts: 1,883
Re: Stray electrical current

A steal boat at my boatyard was scrapped because they could not stop the rust and it was only a few years old. The owner built it himself and was showing us photos of his construction and it seemed to us that it was improperly primed as he waited quite a few days after sand blasting to primer. He had other design problems and just gave up.
That derelict boat was another dream for somebody else, don't let it be your nightmare and a waste of your life.
Badsanta is offline   Reply With Quote
Old 02-03-2014, 05:15   #4
Moderator Emeritus
GordMay's Avatar

Join Date: Mar 2003
Location: Thunder Bay, Ontario - 48-29N x 89-20W
Boat: (Cruiser Living On Dirt)
Posts: 32,221
Images: 240
Re: Stray electrical current

Follow the links provided here ➥ How to Measure Stray Current in the Water
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 02-03-2014, 05:43   #5
Marine Service Provider
boatpoker's Avatar

Join Date: Nov 2008
Location: Toronto, Ontario or Bahamas
Boat: Benford 38 Fantail Cruiser
Posts: 2,931
Re: Stray electrical current

Dave Rifkin consultant to BoatUS and USCG on these issues has a few interesting articles in the "Documents" section of his website.

Last year I took one of his seminars and it was fascinating. Every boat owner should read his stuff.
That hysterical laughter you hear as you sail a way in your "new" boat ..... is the seller.
boatpoker is offline   Reply With Quote

cal, current, electric, electrical

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

Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 23:08.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2018, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2018, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.