Distribution and use of electricity throughout the home. Electrical standards vary greatly worldwide, so providing your location in your question or your profile helps ensure you get answers that are relevant to you. Posting photographs of wiring junctions or drawing a wiring diagram and posting ...

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1answer
179 views

How do I determine what size Generator I need?

What are the number of factors and considerations to be taken into account before sizing a prime rated generator ??
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1answer
349 views

What happens when my incomer main and generators are operated together without an interlock ?

Suppose consider my incomer main is live and is feeding my MCC and now if i operate my standby diesel generator connected to the MCC what will happen in the system ?? will there be dead shorts or any ...
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1answer
32 views

Can an existing exhaust fan with a light and night light be replaced with just an exhaust fan and a seperate can light in the shower?

We are remodeling our bathroom and in our shower we have an exhaust fan with a light and night light combo which are connected to three different switches. We are replacing our exhaust fan with a ...
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2answers
10k views

How do i know if my service panel will accommodate a 240v circuit breaker

We are looking to install a hot tub and trying to find out if our service panel will accommodate a 240v circuit breaker. This is what our panel says but I do not know what all of this means: ...
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1answer
10k views

Is 40-amp breaker enough for my new range?

My new range says it needs a 40-amp circuit breaker minimum. But it also says maximum draw is 13,200 watts on 120/240, so doesn't that mean a 40-amp breaker would be inadequate? By my math, max ...
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3answers
3k views

How many dimmer switches do I need?

I have an electrical situation, 3 switches controlling one light and I want to put in a dimmer. What type of dimmer do I need, 3-way, 4-way,or what?
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1answer
500 views

Wiring from Oven to Switch

At the moment under the oven switch the cable is plastered over (without capping) till it reaches under the counter; there it pops out of the raw plaster and is draped across the back of the units to ...
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1answer
62 views

Will a water heater use more or less power overall if equipped with larger or smaller heating elements?

For electric water heaters that can be obtained with various different options for the size and power draw of their heating elements, will larger elements use more power overall? For example, let's ...
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4answers
4k views

Moving a light switch without moving it

I live in a rented house, and there is a lightswitch which is unconventionally not next to the door in one of the rooms. Is there a way to move the lightswitch so it's next to the door. I am currently ...
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1answer
179 views

Are old work electrical boxes acceptable for roughing in?

My landlord is repairing a room in our home. He ripped out all the plaster and left just the lath boards. HE has "roughed in" using old-work drywall boxes. I don't know if he plans on screwing them ...
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2answers
221 views

Why are only half of my receptacles working after an electrical arc in one of them?

I live in an apartment above an older building that I help care for. I was unplugging my phone charger (I may have pulled it out too fast) and there was a huge arc and flame color and it smoked. This ...
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0answers
75 views

How do I reuse a fluorescent light fixture?

I am reusing a fluorescent fixture with two black wires and one white. Do both black wires go to the black (hot) wire?
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3answers
122 views

FPE panels replaced [closed]

Does any of you who is electrician know if my home insurance can refund me for having the Federal Pacific E panel and wiring replaced? I got it replaced with new one because I was warned that the ...
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3answers
264 views

Extremely confusing 48 v on neutral

I am actually a pretty good electrician, but am baffled by what I found today. During a remodel and adding a few new boxes for future lights, I received a shock from a neutral wire and a floating ...
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2answers
799 views

Why two breakers (one for the line, one for the neutral) on a single-phase line?

I'm wondering why in my house I have a tied-together pair of breakers (one breaker for the hot line, the other for the neutral) for one geyser, while my other geyser only has its hot line with a ...
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3answers
14k views

What to look at first when when circuit breaker that fridge is on is tripping?

I have a house where the circuit breaker has tripped a few time over the last several days. It flipped one evening, we flipped it back and was ok for a couple days. We went away for the weekend and ...
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1answer
363 views

How do I seal an electrical box for a ceiling fan?

We recently installed new electrical boxes and hung fans from them. We caulked around the boxes to seal off airflow into the attic. There are several small holes (and one has a medium sized hole) on ...
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1answer
1k views

How to run flexible metal conduit through wall of attached garage?

The photo shows a disconnected generator transfer switch and a sub-panel in an interior room on a wall that is shared with an attached garage. The transfer switch is pre-wired with some sort of ...
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2answers
793 views

How should I use the ground wire for this welder?

So I want to use "ol big red", my trusty arc welder in my new home. I intend to use the electric range circuit since we have a gas range. I re-routed the range wire and was about to hook it back up ...
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3answers
297 views

4 way switch with only two switches

I just bought a 3-way dimmer switch for the kitchen. There are only two switches that switch the overhead lights. I went to take off one of them to install the dimmer and the switch had 5 wires (2 ...
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2answers
2k views

What are these marks on the Romex wire in the wall?

I was replacing some damaged siding and decided to replace the old dirty insulation at the same time. After pulling out the insulation I noticed that the Romex running to two outlets had some brown ...
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3answers
671 views

Why am I getting no power to the branch circuits with a new sub-panel?

My home had an ancient Zinsco sub-panel in which the breakers were grounding out and arcing to the panel. I've swapped it with a new Eaton 100 amp panel. I've re-installed all the breakers, and re-...
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3answers
10k views

How can I fix flickering and continuous-clicking with a UPS on an inverter-supplied circuit?

My whole house has been backed up by an inverter for a few months now. My computer is still connected to a UPS so that it gets clean power - I don't trust the inverter alone to provide ultra-stable ...
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3answers
2k views

How common is it for new homes to have gas-only dryer hookups?

I am relocating my dryer. I had the gas line relocated and a dedicated circuit put in for the washer and dryer. The original location had the option for an electric dryer. We have a gas dryer and ...
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2answers
133 views

Nothing Seems To Get Enough Power…?

I just moved into a studio that someone is renting out. They just finished putting in a new kitchen, including a new fridge and stove. However, today is my first day here and I have already noticed a ...
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2answers
114 views

How does the wiring in this light hookup?

I'm trying to install this light in my house, but I don't know how the wiring works for it. The light has a switch on the front of it that controls both bulbs and the switch has two black wires coming ...
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1answer
2k views

How can I connect multiple lamps to a single cable?

I have 5 lamps, which I want to attach to a single power cord. If it was only 1 or 2, I'd just plug the wires into an insulating screw joint like these: But 5 cables are just too thick. How should ...
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1answer
146 views

Encasing electrical outlet behind a panel above overhead microwave

My remodeling contractor has installed an overhead microwave. The electrical outlet is no longer in a cabinet above the microwave. He has taken the limited space above the microwave ( about 8 inches ...
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3answers
3k views

How to install LED strip where before I had a fluorescent tube?

I want to install a LED strip where once there was a fluorescent tube. I like to think myself as google competent but this time I could not find a satisfactory answer. Right now, in my ceilling I ...
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2answers
24k views

How do I wire a new light fixture with a red wire?

When replacing an old chandelier with a new ceiling, there was one red wire, two white wires tied together and two black wires tied together. I had capped the red wire and tied in the remaining ...
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1answer
67 views

How do I connect original to new wiring when repairing an electrical fault in an AC unit?

The AC failed at a neighbor's house and the problem was quickly diagnosed as electrical. I saw that a few of the wires had corroded and one had actually burnt through. The unit is only 5-6 years ...
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2answers
2k views

Why is the red (common) wire giving me a shock?

I was replace a 3 way switch and noticed when I touch the red ( common ) wire while it's connected to the switch I get a little "buzz" or shock. I was curious if this is normal. Obviously while ...
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3answers
486 views

Outlets On a Desk

Recently I have built a new desk in my office, made of pine and plywood. It is a build in, that is, it is permanently attached to the wall, etc. and can't be moved. I felt that it would be useful to ...
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1answer
158 views

Why won't any light in my house turn on after a range hood was installed?

My contractor installed a range hood and after that no light in the house will come on. We have a breaker system, not sure of the load. What could be the possible problem?
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1answer
319 views

Connecting 14 AWG to 12 AWG for oven operation

I have a new wall oven to install. Both old and new oven are 30Amp units. Old wiring from local oven junction box is 14 AWG (pig tail - 6ft). New oven is 12 AWG, 3ft pig tail (will not reach ...
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2answers
478 views

4 Vertical Prong Plug Adapter

I just moved into a very old apartment. There is only one plug in the dining room and it is very strange. It takes four same-sized vertical prongs, similar to a 50 amp outlet except the bottom is ...
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1answer
57 views

hardwiring lights to a 20 amp circuit

I have a 20 amp circuit running in my barn. I wish to hook 3 or 4 fluorescent lights to the circuit if i can. Each of the lights has a much smaller wire to connect to. Can i put in a junction box ...
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3answers
242 views

Mild Electric Shocks in Bathroom

I have been subject to mild electric shocks in my bathroom for years. It's probably a good time to figure out the problem (I'm still here), so I have check the voltage across the shower valve and the ...
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0answers
58 views

Why is one of my 2-way lights staying on all the time while the other isn't?

I wanted to change 2 of my lights in the living room, but now one is working well but the second is staying constantly on. It's a 2 way system. I have 1 blue wire coming out, 3 brown, 2 blue and 3 ...
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1answer
672 views

14-2 Tap Branched From 12-2 Feed on 20amp Circuit…What To Do?

I have a switch by my front door that supplied power to a receptacle. I want to wire that switch to an existing ceiling fan/light combo in the same room. I've already made the outlet constantly hot. ...
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0answers
196 views

Fireplace switch: wiring length/gauge limitations?

We have a propane fireplace insert that can be wired up for a switch. Right now, there are two 6" 18g single-strand leads that when nutted together complete the circuit allowing the fireplace to turn ...
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1answer
202 views

What is this electrical box with a button?

I have a small electrical box with a small button on it in the front of my house. I traced the wire as much as I could. One end is this box with a button. It leads to the front of my detached ...
3
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2answers
173 views

Curcuit breaker not accesible

My dryer stopped working and I found out that the circuit breaker (fuse) had burnt out. I measured the voltage in the socket and it's none. I live in an older house in USA and the cable is inside the ...
3
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2answers
236 views

What's involved in an electrical inspection to obtain a Certificate of Occupancy?

In an 80 year old house with no original certificate of occupancy (C of O). I have to obtain a C of O, which requires an electrical inspection. What should the inspection involve?
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3answers
372 views

Swapping out circuit board on York AC?

I have a York AC unit where the circuit board is shot, so I bought a replacement circuit board (same model). The model number for the board is 031-00251C. Pictures of old circuit board: http://imgur....
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2answers
3k views

Trying to measure kW and kWh

I want to measure how many kilowatts or kilowatt hours are going through some of electric lines in my house. For reasons too numerous to list here I can't use a standard kill-o-watt (basically some of ...
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1answer
190 views

Are the connections in the pictures below an attempt at stealing power for another apartment

I need help indentifying if the connections here are stealing power from one apt. for use in another.suspect
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4answers
4k views

What do I do with the neutral and ground when wiring a transfer switch?

I know there are a lot of questions about wiring a generator to a home electrical panel, but I can't find the answer to the questions that I have. I would like to wire a generator that has the ...
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4answers
748 views

Our backsplash tile has raised oval design a how do we work around electrical outlets?

The tile we chose for our kitchen redesign is long and narrow (3" x 9") with a raised oval design. This image isn't the same brand as ours (We purchased Portfolio) but this is almost identical. ...
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1answer
1k views

Can I use a junction box to splice together wires that are on a different circuit?

I'm doing some work inside a wall that has some 12/2 NM cable running through where I need to put something. The cable doesn't have any additional slack for me to route it around the obstruction. I ...