Catalina - Capri - 25s International Assocaition Logo(2006)  
Assn Members Area · Join
h.jpg Home.
a.jpg Association Forum
s.jpg Ships Store
c.jpg Cruising
r.jpg Racing
t.jpg Technical Tips
g.jpg Photo Gallery - New
o.jpg Boat Search - Updated
m.jpg Manuals & Brochures
3rdrpt.jpg Swap Meet
l.jpg Links
f.jpg Officer Flag Line & Staff
b.jpg Bylaws & Constitution
 
1.jpg Members Area
1.jpg Join the Association
 
Notice:
The advice given on this site is based upon individual or quoted experience, yours may differ.
The Officers, Staff and members of this site only provide information based upon the concept that anyone utilizing this information does so at their own risk and holds harmless all contributors to this site.
 
Association Forum
Association Forum
Home | Profile | Register | Active Topics | Forum Users | Search | FAQ
Username:
 Password:
Save Password
Forgot your Password?

 All Forums
 Catalina/Capri 25/250 Sailor's Forums
 Catalina 250 Specific Forum
 Ground		  New Topic  Topic Locked
 Printer Friendly
Author Previous Topic Topic Next Topic  

edguide1
Deckhand

Member Avatar

USA
23 Posts
Initially Posted - 07/21/2011 :  20:18:08  Show Profile
Does anyone know where, on what part of the boat, the electrical system is grounded on a 95' 250 WB?
Thanks
Endurance
1995 Catalina 250WB
Lake Mead,NV
Edited by - on

frog0911
Master Marine Consultant

Members Avatar

USA
1349 Posts
Response Posted - 07/22/2011 :  17:40:32  Show Profile
Unless you have an inboard there is no hull ground on a 250. The only ground is the negative pole of the battery.
Edited by - on
Go to Top of Page

edguide1
Deckhand

Members Avatar

USA
23 Posts
Response Posted - 07/22/2011 :  19:44:44  Show Profile
I'm going to upgrade my electrical system with shore power that will charge 2 new batteries. Is it dangerous not to be grounded to the hull? If so, can you recommend a place to ground it to?
Thanks
Edited by - on
Go to Top of Page

britinusa
Web Editor

Members Avatar

USA
5404 Posts
Response Posted - 07/23/2011 :  06:39:42  Show Profile  Visit britinusa's Homepage
The hull, being fiberglass, cannot act as a ground (ok, if lightening strikes, then it will, but that's not 12v!)

WARNING: If you connect the negative side of the 12v system to the 'ground' of the 110v ac shore power system then you had better know what you are doing.

It's my understanding that the only route for common ground between 12v and 110v is potentially a battery charger or converter that is connected to the 12v system.

Our 110v system has no connection between the two systems as our battery charger is disconnected)

Paul
Edited by - on
Go to Top of Page

Stinkpotter
Master Marine Consultant

Members Avatar

Djibouti
9081 Posts
Response Posted - 07/23/2011 :  08:59:23  Show Profile
<blockquote id="quote"><font size="1" face="Verdana, Arial, Helvetica" id="quote">quote:<hr height="1" noshade id="quote"><i>Originally posted by edguide1</i>
<br />...Is it dangerous not to be grounded to the hull? If so, can you recommend a place to ground it to?<hr height="1" noshade id="quote"></font id="quote"></blockquote id="quote">It would be <i>very dangerous</i> to be grounded "to the hull" (meaning to the water)--that kills people. Your shore power should be grounded to the shore power outlet via the third wire, with a ground-fault interruptor (which breaks the circuit if current flows through the ground wire). The shore power system must be isolated from the water. Your 12v system is grounded to the battery, period. ("Ground" is something of a misnomer with DC--it's more like a "common negative" or "negative bus."

I'll recommend buying a copy of something like Don Casey's [url="http://www.westmarine.com/webapp/wcs/stores/servlet/ProductDisplay?catalogId=10001&storeId=11151&partNumber=1945047&langId=-1"]<i>Sailboat Electrics Simplified</i>[/url].
Edited by - Stinkpotter on 07/23/2011 09:04:49
Go to Top of Page
  Previous Topic Topic Next Topic  
 New Topic  Topic Locked
 Printer Friendly
Jump To:
Association Forum © since 1999 Catalina Capri 25s International Association Go To Top Of Page
Powered By: Snitz Forums 2000 Version 3.4.06
Notice: The advice given on this site is based upon individual or quoted experience, yours may differ.
The Officers, Staff and members of this site only provide information based upon the concept that anyone utilizing this information does so at their own risk and holds harmless all contributors to this site.