Cross Talk On Mwbc Circuit

I have a mwbc where one is running my kitchen outlets, and the other is running a dedicated circuit for the disposal. the breakers are adjacent in the panel, so they are on opposite phase and share a common neutral and ground. I was updating the outlets and so turned off only one of the breakers. when I tested the line to make sure it was off, my voltmeter still read about 10 volts. Is this normal? there were no appliances connected to either circuit.
      


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Similar Topics From Forums

I am thinking of purchasing a WineKoolr used but after looking at the manual online it states that it must be plugged into a "Dedicated separately fused, grounded, 15 amp 100-120v line." The price I can get this at is awesome, but I live in apartment and am not sure, but think I only have 1 dedicated line at all, for the fridge. The previous owners said they just had it plugged into a normal outlet fine, but I want to know if it is a serious issue to do this? I really want a nice cooler for my beer cellar since I have no actual basement, so I am really hoping I can make this work in my home. Thanks for any help!





*Someone asked me on another forum what breakers I have for where I want to install it, and its in my second bedroom.  The breaker for those outlets is a 15A.  They also said that it probably says that in the manual to cover themselves legally but I should likely be just fine.





**

Well I turned off the breakers until I found which was for the outlets in the spare room.  As far as I can tell, the only things on this circuit are the spare bedroom outlets (not the lights), and 1 outlet in the hallway.  Nothing is plugged into any of these and its a 20A circuit.
      
We are just beginning to start with our kitchen remodel. Today, I mapped out all the circuits and this is what I found.



Circuit # 7 - 20 amp circuit to 1 back splash outlet then to 3 kitchen wall outlets, then to a closet outlet and closet ceiling light and then to a side  porch light!



Circuit # 8 - 20 amp to Dishwasher and Disposal



Circuit # 9 - 20 amp circuit to microwave and kitchen ceiling lights. 2 patio recessed lights and dining room ceiling light.



Circuit # 12 - 20 amp circuit to another back splash outlet then to 2 dining room wall outlets.



Circuit # 14 - 20 amp to Refrigerator only



Circuit # 18 - 15 amp to GFCI outlet in garage then that feeds 3 outlets for 3 bathroom outlets and 1 outside patio outlet.



I going to have to add 1 more back splash outlet due to increase in counter space. I'll put the microwave on a dedicated circuit. So I need 2 additional breakers but I only have 1 blank spot in the breaker panel. I guess I can add one of those slim tandem breakers.



So my question, is it ok to have additional wall outlets on the same circuit as a back splash outlet?  If it's ok I'll lighten up circuit # 7 by putting some of those wall outlets on the additional back splash outlet.

Oh, I have 2 20 amp circuits I did not get identified yet! I'll get to those tomorrow.



thanks!
      
Hi all, this is my first post, so...my kitchen was just renovated and the electrical outlets are on the walls and I wanted them in plugmold under the cabinet. Why didn't it happen?  Long story, but I'm doing it myself now.  The electrical receptacles are on 2 separate circuits with a gfci receptacle on each and neither circuit has a receptacle outside the kitchen where I can put the gfci's, so I'm putting gfci breakers in the panel instead. I've run into a different problem on each circuit that'd like some advice on.



Circuit 1: this is a 20 amp circuit.  I have to plug this circuit's neutral wire into the gfci breaker, but I couldn't see which neutral wire matched the hot wire (buried in mess of wires) and I don't have a continuity tester so I just pulled one neutral at a time (tedious) until the circuit failed, but it never failed. So I did this again for every neutral...same result. This circuit shares a few boxes with other circuits so I'm wondering if the neutrals on different circuits are tied together somewhere, and if so I'm pretty sure, but not completely, that that's not going to work with the gfci breaker.  So I didn't install that gfci breaker since I'm not confident it would actually gfci (yep i verbified gfci).  What do you think?



Circuit 2:  this is a 20 amp circuit.  This circuit currently has the refrigerator, gas stove and range hood, and then a gfci in front of 3 electrical receptacles, which already sounds bad since I thought the kitchen receptacles required 2 dedicated circuits. I replaced that breaker with no problem, but it tripped after a few minutes and continued to trip every few minutes. I haven't changed anything else on that circuit yet and it's never tripped before, but now it is, so I put the old breaker back for now. The current gfci receptacle is only protecting the 3 outlets since the appliances are ahead of it. I know you wouldn't normally want the appliances gfci protected, so do you think the refrigerator motor may be a problem?  Do I need the appliances on a separate circuit?  What would you suggest I do?



Thanks, and if you're wondering "why all the effort?", it's partly because I'm meddlesome, partly because I'm bored, and partly because the backsplash tile is to be on showcase, not the electrical receptacles.
      
My kitchen circuit breaker tripped again (California).  Resetting the suspect circuit breaker used to fix this...   (it happens every few months) Now things are dark again in the kitchen and most of the back of the house. Resetting the usual suspect circuit breaker does not help. I reset all of them for good measure. (still dark).



The strange is when checking voltages with meter voltmeter, from the bottom-up, every other breaker terminal does not read 120V, they are OV.   All of the breakers are set properly, so why are half of them dead at their output terminal (where the wire connects)  I'm thinking possibly a buss bar problem? If so, how to troubleshoot that?





                                                                            Thx!!



                                                                       Mark
      
First off, I have read a majority of the posts concerning this subject and they have been very helpful and answered many questions, but I still have a few.



I am wanting to run power to a detached shed that is around 100 feet from the house. However, due to the location of my main panel and the easiest route to run the power, I am looking at running cable about 270 feet. I measured it out to exactly 263 feet, but figured it would be best to go longer. I am wanting to run at least 60 amps to the shed, as I won't be using it for nothing more then power outlets (basic power tools) and lights. Here are my questions:



1) What cable would be best for such a long distance run?



2) Would a 60 amp subpanel be sufficient for this job. I am looking at only 4 circuits: 1 for internal outlets, 1 for lighting, 1 for motion sensor light outside and 1 for external outlet. I am looking at the following panel:

http://www.homedepot.com/Electrical-...&storeId=10051



I have seen some marked 70 amp and wondering if they make a difference:

http://www.homedepot.com/Electrical-...&storeId=10051



3) Also, I will be installing a 30 amp RV connector circuit from my main panel  to the where I park my Camper Trailer, which is a run of about 75 feet. What would be the best cable for this sort of run under ground? Can I run both cable together in the same conduit until I junction if off to where I will be installing the plug for the camper?



4) Would the following be the circuit breakers to use:



60 amp - http://www.homedepot.com/h_d1/N-5yc1...&storeId=10051



30 amp - http://www.homedepot.com/h_d1/N-5yc1...&storeId=10051



I think that is it for now. Thanks in advance for all your help!!
      
I have a 1960s house with EMT throughout. 



I recently replaced 2 florecent fixtures in my basement with 4 LED lights in their own J-Boxes in the drop ceiling. I did the following:



1. Rerouted the the conduit from the light switch to the main j-box for the lights. (previously it was going directly into the fixture) 

2. Ran 4 foot whips to each jbox holding the LED (metalic 14# wires)

3. Cut the old spliced wire (that was just twisted and taped) and used a wire nut

4. Replaced the switch with a dimmer



The lights work great.  Noticebale improvement and the dimmer is excellent.



The issue is that the circuit for the kitchen is now tripping.  I told my wife its just a coincidence, but she is sure I caused it.  Its only happened 2x (1 day apart.  Nothing unusual running on the circuit, only the fridge and the gas stove which as not in use)



Can my "new" work possibly impact another circuit?   What should I check?  Any way to avoid re-doing my work?



Things I noticed / may or may not be relevant:

1. Some of the EMT is directly in contact with a copper water pipe

2. The switch / dimmer isn't grounded

3. The wires in the jbox were nasty and old.  There was corrosion on the jackets and the jbox.  Looks like some water leaked down fromt the laundy above at some point in the last 40 years.

4. At some point (months ago) when I was in the basement I touched some of the EMT and something that was plugged in I swear I feld a shock. (just listing everything I can think of).  I didn't think much of it at the time, but now my whole electrical system is suspect.

5.  The tripped circuit (fridge, MW, stove) didn't appear to be tripped.  The fridge wasn't on.  When I turned off and back on the circuit the aplliances came back to life.  Appliances less than 1 year old. 

6. The clock on the range was reset at one point but I didn't think I turned on or off the circuit.  The lights for the basement were switced off but still worked with the fridge circuit tripped.

7.  We had a huge electrical storm right before I did the work

8.  We have a "stablock" panel that the home inspector got all bent out of shape about.  Other than truning on and off breakers I have never touched it.

9.  Kitchen breaker and basement light breaker are adjacent in the box

10.  I believe kitchen and basement share the same EMT in places.

11.  I think I now have too many connectors in my j-box.  Will likely add an extension.

12.  I didn't use the red "bushing" on all my whips as I ran out of them, but I was careful with the metal sheath and really don't think any wires were cut. (besides if there was a short wouldn't my LED lights fail and that circut break?)



HELP.  I am happy to call a contractor to come in, but I don't have an electrician I trust yet and I'm scared bringing someone in before I isolate the problem a little.
      
I am installing a new shed and redirecting an existing electrical line from an old shed to the new shed.  There is a GFI receptical (non-outlet type) in a weather-proof metal box attached to the house that is fed by a dedicated line from the circuit breaker box.



I never paid much attention to why the lighting in the old shed never worked until I decided on getting a new shed.  This weekend I went out with my multimeter to test the line and load sides of the GFI recepticle and measured only about 12 volts on both sides. (I did test the multimeter on some inside outlets and measured 120 volts).



I tried many times to reset the GFI without success.



Is the GFI bad?  Is it normal for a bad GFI to measure such low voltage on both the line and load sides?



Thanks for your help.
      
New appliances coming in. No change in service, so I believe that existing wiring can be considered grandfathered. Please correct me if wrong. BTW: we're under 2005 code in my locality, but I go with 2008.



Currently, the kitchen is wired all 15-amp except for non-counter-top receptacles. (I know, opposite, and wrong, but that's the way it is)





Can dishwasher and disposal be on same 15 amp circuit? (This will be a new circuit, so perhaps I need to run 20-amp?)


Current range wiring is 3-wire on a 40 amp breaker (3-pole). Can I still utilize a 3-prong receptacle here?


Does the kitchen wiring have to be upgraded to provide for 2 SABC (currently, only 1), and 20 amp?



      
I completed my whole house rewire last Fall (took 2 years and severely tested my wife's patience). I read 5 wiring books in the early stages but read Rex Cauldwell's Wiring a House with his above code suggestions near the end of the project and now im obsessing about some of the stuff I didnt do. What do you guys think of some of the suggestions, specifically,



1. Driving 8 ground rods and the wire must be continuous (I drove 4 but the #6 copper wire from the panel to rod 1 is 1 wire and the #6 wire from rod 1 through rod 4 is another wire but both are properly clampled to rod 1 with an acord clamp). Funny, even with 4 rods there is almost no current through the rods versus 2-3 amps through the traditional cold water pipe ground



2. 1 circuit for each duplex receptacle in bathrooms. Since I have a quad in each of the batchrooms, that would be 4 circuits instead of 1 (code allows an unlimited number of bathroom receptacles on one circuit which does seem odd)



3. Nothing shared with kitchen counter receptacles (ie kitchen wall and dining room on their own)



4. Dedicated circuits for everything - I added dedicted circuit for fridge, microwave and dishwasher/disposer, but did not separate the dishwasher disposer onto 2 circuits. There used to be what I called "Circuit X" which did kitchen counter, microwave, dishwasher, disposer, fridge, 2 kitchen counter outlets, dining room and 1 outside outlet. Wife frequently blew that one. Circuit X was divided into at least 5 circuits during the rewire



5. No switch loops - did 5 of these to save on carpentry/avoid certain box fill problems. Now 2011 code says no switch loops without a neutral. Oops?



Just wondering what you guys think.
      
If I'm reading my instruction sheet correctly my QO 15A CAIF it will trip instantly for a shared neutral. Does that mean that I am not allowed to use it to feed 1/2 of a MWBC?