Reply
 
Thread Tools Search this Thread Display Modes
 
Old 06-15-2007, 01:13 PM   #1
2 Rivet Member
 
1971 23' Safari
Beaverton , Oregon
Join Date: Apr 2007
Posts: 29
12 volt ground for 71 Safari?

I'm trying to add an additional 12 volt circuit to connect to my new refrigerator. I have an open spot in the converter for another circuit and could easily run the wire to the fridge, but I can't seem to find where the ground should go to. Is there a common 12 volt ground and where is it? Or do I just connect the ground lead from the fridge directly to the frame?

Sorry if this topic has been beaten to death, but I couldn't locate anything on it in the threads using the search tools.

Thanks for your help!

Pete
__________________

__________________
rrpranch is offline   Reply With Quote
Old 06-16-2007, 06:49 PM   #2
2 Rivet Member
 
1971 23' Safari
Beaverton , Oregon
Join Date: Apr 2007
Posts: 29
Ok, so I figured out the 12 volt circuit question.

But during installation of the circuit I noticed that there is no fuse or circuit breaker on the positive lead from the batteries to the converter.

I'd like to install a reset-able breaker instead of a fuse. Does anyone know what size I will need?

Thanks!

Pete
__________________

__________________
rrpranch is offline   Reply With Quote
Old 06-16-2007, 07:38 PM   #3
Rivet Master
 
Excella CM's Avatar
 
1978 31' Excella 500
Venice , California
Join Date: May 2006
Posts: 1,061
About 50 amps.
__________________
"Not all who are laundering are washed" say Bill & Heidi

'78 Excella 500,"The Silver Pullit". vacuum over hydraulic disc brakes, center bath, rear twin. '67 Travelall 1200 B 4X4 WBCCI 3737
Excella CM is offline   Reply With Quote
Old 06-16-2007, 08:56 PM   #4
2 Rivet Member
 
1971 23' Safari
Beaverton , Oregon
Join Date: Apr 2007
Posts: 29
50 amps! Wow, that's mighty beefy. I had no idea the converter could draw that much juice.

Thanks for your help! Time to go shopping.

Pete
__________________
rrpranch is offline   Reply With Quote
Old 06-16-2007, 10:11 PM   #5
Site Team
 
, Minnesota
Join Date: Aug 2003
Posts: 6,940
Images: 59
The converter draws 120Vac (less than 15 amps) and puts out anywhere from 45 to 80 amps of 12V, depending on your converter. So the converter isn't drawing that much juice, it's putting it out to the battery and lights.

50 amps is the standard circuit breaker used between the battery and converter.
__________________
markdoane is offline   Reply With Quote
Old 06-16-2007, 10:20 PM   #6
Well Preserved

 
1993 21' Sovereign
Colfax , North Carolina
Join Date: Jun 2003
Posts: 20,189
Quote:
Originally Posted by markdoane

50 amps is the standard circuit breaker used between the battery and converter.
It is also the standard size fuse for ground on our trailers.
__________________
Meddle not in the affairs of dragons, for you are crunchy, and taste good with ketchup.
Terry
overlander63 is offline   Reply With Quote
Old 06-17-2007, 02:22 AM   #7
2 Rivet Member
 
1971 23' Safari
Beaverton , Oregon
Join Date: Apr 2007
Posts: 29
Thanks for that info guys.

I also noticed that the P.O. didn't connect the external ground on the converter box. Is that an optional connection or should I do some additional wiring? Should that be wired to the shell or the frame?

Workin' on this trailer is like givin' a pig a pancake!

Pete
__________________
rrpranch is offline   Reply With Quote
Old 06-17-2007, 07:14 AM   #8
Site Team
 
, Minnesota
Join Date: Aug 2003
Posts: 6,940
Images: 59
It's not optional. I don't know the technical reason, but it's important enough that the Natl. Elec. Code requires it, and makes a point of calling it out.
__________________
markdoane is offline   Reply With Quote
Old 06-17-2007, 07:25 AM   #9
Rivet Master
Commercial Member
 
lewster's Avatar
 
Vintage Kin Owner
Naples, FL , Hood River, OR
Join Date: Dec 2005
Posts: 7,278
Ground the external connection of the converter to the frame of the trailer. You can also add it to your ground buss if it is connected to the frame .

It is there (mechanical ground vs. the nuetral-electrical ground) as a safety to dissipate the charge in the event of a malfunction or overload in the converter.
__________________
Lew Farber...ABYC Certified Master Marine Electrician...RVIA Certified Master Tech ...AM Solar Authorized Installation Center...AIRSTREAM Solar & Electrical Specialist...Micro Air 'Easy Start' Sales and Installations
lewster is offline   Reply With Quote
Old 06-17-2007, 02:19 PM   #10
2 Rivet Member
 
1971 23' Safari
Beaverton , Oregon
Join Date: Apr 2007
Posts: 29
Thumbs up

Thanks Mark & Lew. I'm on it. Don't you just love P.O.'s!!

Pete
__________________
rrpranch is offline   Reply With Quote
Old 06-17-2007, 02:38 PM   #11
2 Rivet Member
 
1971 23' Safari
Beaverton , Oregon
Join Date: Apr 2007
Posts: 29
I hate to open up a can of worms, but what do you guys think of the current power converter I have? It's a Parallax Power Components Model 3230. It's a 30 amp converter/charger. I'm not sure what it's battery charging characteristics are. Anyhow, is this adequate for a 23' Safari or should I be thinking of replacing it?

Thanks!

Pete

The six week tour of the Rockies begins July 21st!
__________________
rrpranch is offline   Reply With Quote
Old 06-17-2007, 03:46 PM   #12
Well Preserved

 
1993 21' Sovereign
Colfax , North Carolina
Join Date: Jun 2003
Posts: 20,189
Quote:
Originally Posted by rrpranch
I hate to open up a can of worms, but what do you guys think of the current power converter I have? It's a Parallax Power Components Model 3230. It's a 30 amp converter/charger. I'm not sure what it's battery charging characteristics are. Anyhow, is this adequate for a 23' Safari or should I be thinking of replacing it?

Thanks!

Pete

The six week tour of the Rockies begins July 21st!
As long as it's got electronic voltage control, it should be fine. Most Univolts were 40 amp, I would rather have a 10 amp less converter that is more reliable, like the Parallax.
__________________
Meddle not in the affairs of dragons, for you are crunchy, and taste good with ketchup.
Terry
overlander63 is offline   Reply With Quote
Old 06-17-2007, 05:25 PM   #13
2 Rivet Member
 
1971 23' Safari
Beaverton , Oregon
Join Date: Apr 2007
Posts: 29
Whew, that's a relief! It seems to be doing a good job so far.

I made a little error though. I know you're supposed to keep the water level up on the batteries (I have have two 6 V golf cart batteries hooked in series). So naturally, I checked the levels and topped them off... With tap water. Oops! The bad thing is, I know better than that. It was a haste makes waste moment. The question is: Are my batteries ruined and is there a way to check?

Thanks again

Pete
__________________
rrpranch is offline   Reply With Quote
Old 06-17-2007, 06:11 PM   #14
Well Preserved

 
1993 21' Sovereign
Colfax , North Carolina
Join Date: Jun 2003
Posts: 20,189
Quote:
Originally Posted by rrpranch
Whew, that's a relief! It seems to be doing a good job so far.

I made a little error though. I know you're supposed to keep the water level up on the batteries (I have have two 6 V golf cart batteries hooked in series). So naturally, I checked the levels and topped them off... With tap water. Oops! The bad thing is, I know better than that. It was a haste makes waste moment. The question is: Are my batteries ruined and is there a way to check?

Thanks again

Pete
The "correct" thing to use is distilled water, but I have used tap water many times with no ill effect...I've even used it in the battery on occasion.
__________________

__________________
Meddle not in the affairs of dragons, for you are crunchy, and taste good with ketchup.
Terry
overlander63 is offline   Reply With Quote
Reply

Tags
12 volt


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
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


Similar Threads
Thread Thread Starter Forum Replies Last Post
re-plumbed '67 Safari tod47d Plumbing - Systems & Fixtures 4 01-30-2006 12:04 PM
Safari VS. Classic Questions kkrogh Our Community 24 12-20-2005 12:10 PM
1961 - 12 volt or 6 volt? Marlboro Mafia Electrical - Systems, Generators, Batteries & Solar 4 04-19-2004 10:03 AM
Electrical problem--99 safari Andrew Carey Electrical - Systems, Generators, Batteries & Solar 2 11-16-2002 03:04 PM
Looking for ideas on a sofabed for my Safari Scotti General Interior Topics 0 09-03-2002 02:45 PM


Virginia Campgrounds

Reviews provided by




Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 06:40 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.

Airstream is a registered trademark of Airstream Inc. All rights reserved. Airstream trademark used under license to Social Knowledge LLC.