Question About Tandem Breaker

I have a covered (rafters, decking, shingles, etc) screen room out back. It used to have a single light, which I wanted to replace with a ceiling fan with light kit, independently switched. So I bought this fan/light dimmer: http://www.lowes.com/pd_69955-539-S2...d=10151&rpp=24



I checked the wire at the old light, and as it was 14-2, I removed it and replaced it with 14-3. It wasn't until after I spent 3 hours crawling around the attic on my stomach running the new line that it hit me....the circuit is on a 20 amp breaker. The line running to the switch, and a jumper running from it to 5 wall outlets in the living room, is all 12-2.



The new line runs straight from the switch to the fan box, with no other outlets. So while I doubt it is up to code, it seems like it should be ok. The fan/light won't pull anywhere near enough power to overheat the 14 gauge line, and if there is an actual fault, it should trip the 20 amp breaker anyway.



I would very much like to hear from the experts. Running the 14-3 was a serious pain in the butt, and replacing it with 12-3 would be just as bad. So if this is safe, I'd rather not replace it. But if I am risking a fire, it is obviously worth the hassle.
      

In my older home i just founf out that all the upstairs ( 2 bedrooms) outlets are installed on the same 20 amp circuit breaker for my kitchen. which might be a reason that when too many things are running this breaker trips. My question is I want to add a 15 amp breaker and isolate all the upstairs on this breaker so the kitchen stays seperate. i Found the romex that is installed to a downstairs outlet that is connected to all the other outlets upstairs but since it is hidden in the walls and i narrowed it down to 3 possiblities upstairs, but i am not sure. How can i test to see which one of the romex wires it could be so i can attach my new romex from the new breaker and just abandon the old wire all together.

PS. when i disconnnect the romex from the outlet downstairs in the kitchen all the outlets upstairs stop working, that is how i know that is the one that brings the electriity upstairs.
      

i have 3 switch sets in my house that are giving me absolute fits.



#1  kitchen switch, controls the light over the outside door




    Code:

   

3 sets of lines coming in,



line from the breaker panel (power)



line to the ceiling lights 



line to the outside porch light.

i cannot get this 3 line to work without tripping the breaker every time i turn the switch off



#2 bathroom switches




    Code:

   

power feed line



line to the light over the medicine cabinet



line to the second switch to control the exhaust fan.

same issue as the first set, flip the switch and trip the breaker (different breaker from the kitchen switch)



#3 living room switch and plug controlled via switch




    Code:

   

 power feed line



outside porch light line



line to wall switch to control the lower wall outlet

flip switch, trip breaker



the switches i have are "1 pole" am i using the wrong switches for this job?
      

Now I have a 20 amp breaker at the circuit box that has older two wire, ie black and white no ground.  This cable looks to be in good shape.  This services several overhead lights in bedrooms.  I need to tie into this to create overhead lights in the bathroom and hallway.  Can I replace the 20 amp breaker with a 15 amp breaker, and then use 14-2 cable to connect the bathroom and hall lighting?  I do not know if the present older cable is 12 or 14.  I assume it is 12 since it has been tied into this 20 amp breaker before I bought the house.   



  Thank you to all who help. 
      

We want to run 110V service to a portable building 95' from the breaker box at the house. It will run a 110V 8000 BTU AC (dedicated breaker), two single bulb light fixtures and 2 additional wall outlets. Our breaker box at the house is full, but I am being told I can remove a single breaker in the box and replace it with one that contains two breakers. What is the name of this type of breaker and where can I get one? What size breaker should be used for this amount of power requirement? What size breakers should I have in the load center on the portable building?
      

Hello.



I recently purchased a home that has a a new grounded breaker panel but none of the outlets themselves are grounded save the hvac system in the basement. I had an electrician come and he said the fastest way to get it done is to switch the appropriate breakers to GFCI breakers in my service box and then I can change the outlets and then just put the stickers that say ungrounded etc on the new 3 prong receptacles. he called the inspector to double check and the inspector told him that he can't do it this way but he needs to find the first outlet in the loop from each breaker line and change that receptacle to a gfci and then we can change each receptacle to 3 prong in that loop.



Wouldn't just changing the breaker do the same thing? also if I did just install a Gfci receptacle on the first outlet in the loop, if it breaks wouldn't the rest of the outlets behind that gfci not function until I replaced the Gfci outlet where as a breaker would just pop and I can simply go turn it back on?



Just wanted to get some opinion from the experts as I'm willing to spend more on doing gfci breakers and am confused as to why the inspector suggested the way he did



Thanks for any help!
      

Hello



I recently upgraded my old fuse panel with a circuit panel.  One of the circuits contains mostly lights and also my furnace.  The wire on the lights are 14/2 and the breaker is a 20 amp breaker.  Can I replace the 20 amp breaker with a 15 amp Breaker or do I need to change all the wire.



Help



Thanks
      

I have a small 19 gallon water heater in a small garage space, that was installed by some questionable handymen a few months back.  I just had the plumbing and septic finished so tested the hot water, only to find the element was already burned out.



I noticed however, that this 120v unit is wired via 10 gauge wire to a 30 amp double breaker.  This is questionable because I thought a 120v appliance would be wired to a single pole on the hot wire and run neutral to the neural panel area.



My question is, can I run the hot wire out of one side of the double breaker without safety issues, or should I definitely replace it with a single pole breaker?



I would normally not question the work, but everything these guys did already had to be adjusted, so I'm only naturally assuming this may need to be also.



If its safe, I would like to simply things and just connect the one hot and leave an open space in the other half of the double pole... Is this possible?



Thanks for your advice-
      

I have a grounding question.  I am installing 400a service to my new home.  We ran 350MCM wire underground thru 3" conduit from the 2ndary terminal (moped) to the house into a 320A Cooper B-Line meter.  From the meter we ran 2 sets of 4/0-4/0-2/0 thru the wall to 2-200a breaker panels ("standard practice", according to my electrical supplier).  The ground wire (#4Cu bare) from the grounding rods comes up from the ground and we're curious if there has to be a special splice connecting the ground wire to each breaker panel or can we run thru one breaker panel to then next, say by connecting the ground wire to a ground bus on one panel and running that thru to the next with #4Cu bare or #6Cu in conductor.  Different electricians are suggesting different methods and the electrical inspector is unsure, but seems to be leaning towards the "special splice". Any feedback would be appreciated.
      

I am working on fixing an issue with the wiring in one of the bedrooms in my older mountain home. Though I was not present for the cause of the problem, here is what was told to me by the tennant.  he claimed that he went to turn on the light in the closet, (a 3 lamp track bar light, wired to a switch) he heard a loud pop from the light in the closet and lost power to to the room. The room has 6 recessed ceiling lights on 2 separate switches, presently only half of the lights work.There are no breakers tripped, no obvious shorts at outlets. I have opened the drywall following the wires around hoping to find a short but I have found nothing. I decided to try something, and I bridged the working switch to a dead outlet and everything turned on. I am waiting til the daytime to follow the wires outside to the breaker box, but so far no breaks or anything.. curious if anyone has any pointers.. could the pop he heard from the track lighting have killed a breaker? its about the only thing left.