2 circuits on 3 wire (problems)

Reply

  #1  
Old 02-14-07, 09:08 AM
Member
Thread Starter
Join Date: Feb 2007
Posts: 3
2 circuits on 3 wire (problems)

I have a 30 amp double pole breaker that keeps blowing( not triping totatly not working) They Have Taped the white wire black with black tape and running two black wires to the breaker, With the bare wire to the nuetral bar . They Have it wired to thre outlet. 2 in the living room and one in the back bed room. And it is also wired to the kitchen light and the laundry room light

I put in a new 30 amp and it blew as soon as i fliped the switch

How can i fix this problem

Thanks ahead of time Scott
 
Sponsored Links
  #2  
Old 02-14-07, 09:26 AM
pcboss's Avatar
Forum Topic Moderator
Join Date: Jul 2002
Location: Maryland
Posts: 14,441
If the white wire is taped black and both the black and re-identified white are attached to the breaker this would be a 220 volt circuit.

These circuits are commonly used for high draw things like dryers, water heaters and air conditioners.

I have no idea how this could be feeding general use receptacles and lighting in your house.
 
  #3  
Old 02-14-07, 09:46 AM
Member
Join Date: Jun 2006
Location: USA
Posts: 110
The black tape around the white wire in the panel is to warn people that the white wire is being used as a hot and not as a neutral, and would be ok provided it is so marked in all junction boxes on the circuit. But it sounds like someone tried to make this a multiwire circuit, but what was used for neutral if the white wire is being used as one of the hots? the bare ground??!! How are the neutral poles on the receptacles and light fixtures wired?

And I'm sure it's wrong and dangerous to be using a 30 amp fuse for a lighting/utility circuit.
 
  #4  
Old 02-14-07, 09:56 AM
Member
Join Date: Sep 2003
Location: Central New York State
Posts: 13,973
If you really have what you say you have, you have a fire and life safety hazard. Leave the breaker off and call an electrician. I don't care that you won't have lights in the kitchen or power in certain places.

What you have (at least what you are describing) is a fire hazard and a life safety threat. Do not, under any circumstances, continue to attempt to fix this.

Someone (some idiot) attempted to relieve an overcrowded circuit by making a multi-wire circuit using the existing wiring. They also used a larger breaker, possibly because it was all they had.

You need to either put this back to be single wire 120 volt circuit, or you need to replace the wiring in the wall to be the proper type (12-3 or 14-3) and then the breaker needs to be properly sized (20 or 15 amp).
 
  #5  
Old 02-14-07, 10:00 AM
Member
Thread Starter
Join Date: Feb 2007
Posts: 3
2 circuits on three wire (problem)

of the plugs that are not working. I have pulled one from the wall and it seems to be wired normal . black wire on the right bare in the middle and white on the left

As for the nuetral in the fuse box I have not found one coming from that wire that runs in to the fuse box

ok thats what i have done

thanks for the help
 
  #6  
Old 02-14-07, 10:14 AM
Member
Join Date: Jun 2006
Location: USA
Posts: 110
"wired normal . black wire on the right bare in the middle and white on the left"

NOT normal, no 120 volt receptacle in a multiwire circuit would have BOTH hots attached.

What racraft said, turn the breaker off and get a pro.
 
  #7  
Old 02-14-07, 10:20 AM
Member
Join Date: Jun 2006
Location: USA
Posts: 110
Ok, I will admit its conceivable that you could break off the connection tab on a duplex receptacle and then wire the two outlets to opposite legs. And I friankly don't know whether that would be code-compliant, even if plainly marked. But I kind of doubt that's what was done here.
 
  #8  
Old 02-14-07, 11:30 AM
Member
Join Date: Sep 2002
Location: welland ontario
Posts: 5,599
You have a 240 volt circuit(possibly was for a window AC) that someone has attempted to use for normal houshold circiut. Anything you plug into it will blow up as it has 240 volts instead of 120 volts.

Leave the breaker off until you get an electrician to look at this.
 
  #9  
Old 02-14-07, 12:22 PM
Member
Join Date: Sep 2000
Location: United States
Posts: 18,497
msge, are you in North America?

Does the receptacle look like an ordinary lamp receptacle, with two vertical slits?

Do you own a voltmeter? Something that can tell the difference between 120 volts and 240 volts?

I suspect this is a circuit designed for an air conditioner or a tanning bed. Using it for ordinary North American appliances could have disastrous results.

This whole situation smells very fishy, and potentially dangerous. Get some knowledgeable help before using this circuit again.
 
  #10  
Old 02-14-07, 01:04 PM
Member
Thread Starter
Join Date: Feb 2007
Posts: 3
2 circuits 3 wire

Yes i am in north america Missouri to be exact

The breaker is off

I just found out about this problem today
I am Looking for the person i bought this mobile home from just over a year ago
I am not happy about it being sold to me this way. Since i bought this one because my neighbor burnt my last one down

Have called my dad, he used to be a certifed in electic

Should i Totally Pull the Breaker or is it dead as it stand

And Thanks A Million Everyone Scott
 
  #11  
Old 02-14-07, 01:06 PM
Member
Join Date: Sep 2003
Location: Central New York State
Posts: 13,973
If the breaker is turned off then you are safe, there is no need to remove it.

I think, or at least I hope, you learned a lesson. Always have an inspection done when you buy something like this.
 
  #12  
Old 02-14-07, 01:07 PM
Member
Join Date: Jun 2006
Location: USA
Posts: 110
"Off" is fine, don't bother trying to remove it from the panel for now.
 
Reply

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


Thread Tools
Search this Thread
Display Modes
'