Questions tagged [electrical]

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 it is also highly recommended.

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51 views

Subpanel breaker size and wire size

I'm looking to add a subpanel for a basement kitchenette. Here are the power requirements and intended new circuits. Appliance Voltage Amps Slot Circuit Amps Oven/Range 220 28.0 ...
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1answer
351 views

light fixture with no power

We are installing a light fixture in my kitchen, it's an old fixture that was my grandmothers. When we hooked everything up at first the light worked and everything else on that circuit also worked (...
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4answers
63k views

How to determine if a 20 amp breaker can be upgraded to 30 amp

I recently purchased my first home and the breaker the electric clothes dryer is connected to is 20 amp. I was told it should be 30 amp by a home inspector but foolishly did not have the seller ...
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1answer
65 views

Lighting a Room with LED Light Strips

I want to light an entire room (~300sqft) using light strips as there is no wiring available for traditional lights. I want to make 3 rectangles on the ceiling ("zones") that I can control ...
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2answers
3k views

How can I prevent my computer from interfering with the TV signal?

I have an antenna tv and every time I turn on my computer, it knocks out the signal to my tv. I have tried plugging the computer in to different areas in my house and buying a booster for the antenna ...
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2answers
133 views

How do you achieve this stairway 'chaser' effect with an LED light strip?

Here is a gif showing it in action, once the motion is detected, the strip slowly lights up directionally from bottom to top, how is this achieved? I can't seem to find how this is done: Looping GIF ...
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1answer
16k views

What wire size for 100 Amp sub panel 100ft in length form 200 Amp main panel?

What wire size for 100 Amp sub panel 100ft in length form 200 Amp main panel? Do I have to buy all 3 wires (2 hot and 1 neutral) the same size? Or can neutral wire be smaller size?
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1answer
38 views

Wiring for stairway & two lights on landing

I'm looking for how to wire an MK switch on my landing. I thought I had a straight forward two-way setup with a switch at the bottom of the stairs and one at the top. But the upstairs switch is two-...
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1answer
118 views

Lights goes completely out and back on again and flashes for more than 20 seconds

This happens randomly. We are in Vancouver, Canada, It happens with all the lights with the same circuit, but lights are in different rooms (living room, kitchen, den and bathroom). Sometimes those ...
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3answers
71 views

Dedicated Laundry Room Circuit?

I live in Florida. According to the Florida Residential Building Codes (2017): E3703.3 Laundry circuit. A minimum of one 20-ampere-rated branch circuit shall be provided for receptacles located ...
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1answer
63 views

Battery backup system for tankless gas water heater (outdoor install)

I have a Takagi T-K3-SP tankless gas water heater, which is installed outdoors. It still needs electricity though, so when I lose power at home, there's no hot water. The manual states it uses 86W ...
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1answer
26 views

Trying to work out existing light switch wiring with possible loop

Have a row of ceiling lights which used to work about 10 years ago. Want to get an understanding of the wiring at the switch before I go to the effort of removing the ceiling panels which holds the ...
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2answers
101 views

Sparks from desk lamp?

I have a UL-approved lamp that I've had on my desk since about 2004; it's the kind with two metal arms rising from a heavy base that connect to a halogen bulb fixture. The other day I was working at ...
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2answers
352 views

Voltage inversion

Not sure if I'm using the correct title for this subject but I don't know what else to use to describe it. Few days ago, while plugging my iron on an receptacle, it generated a sparkle and suddenly ...
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6answers
59k views

Can I cover junction boxes in the attic with insulation?

This may be a duplicate of What are the codes for electrical wiring in attics? I have an attic which is accessible via a ladder through an access panel in the garage and in a bedroom. The trusses ...
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3answers
2k views

Can I use 12-2 wire on a 20amp breaker to power an entire bathroom?

I have a half bathroom I was going to power with a dedicated 20 amp circuit breaker. I was going to use the 20 amp breaker to power: vanity light shelf light (Phillips hue light strip) outlet ...
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2answers
212 views

Can I feed a sub panel off my 200A service box? Or would I need to run wire from the inside breaker box?

Can I add a sub panel feed off my 200A service box? If so what are the requirements? Or would I need to run it from the main house breaker inside the house and wire from there? I currently have a ...
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1answer
180 views

Wiring a ceiling fan that has two 2-way switches to a universal ceiling fan wall control

I want to wire my ceiling fan to a ceiling fan wall control. The problem is that the location where I am putting it is controlled by two 2-way switches. I need to figure out the correct wiring method ...
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1answer
1k views

Is it possible to retrofit an external kitchen fan in an existing house?

I have a 2-storey half duplex that was built in 2008. The kitchen (1st floor) has a range hood fan that exhausts to the side of the house through 8" aluminum duct. The outside vent is not directly ...
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2answers
102 views

Why should an electric heater not be daisy-chained?

I bought an electric heater such as this one: The manual mentions this part: The heater should not be connected to adapters or an outlet multiplier. The heating device should not be placed ...
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1answer
588 views

What codes are invovled in running an overhead subpanel feeder to a detached garage?

This subfeeder will be going to a detached garage about 30ft away, and powering a 100amp subpanel. I'm not sure what codes are involved in this feat. I'd like to know the codes involved for compliance....
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1answer
74 views

3 way switch controlling outlets. Top working bottom now?

So I just replaced all the outlets and switches In my new house. A three way switch controls all 4 outlets in the living room. I broke the brass tab on one of the outlets and now only the top outlet ...
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0answers
30 views

Ceiling lights going out

About 3 months ago, I was carrying one 1inch pvc pipe through my mudroom to the basement when I bumped the pvc pipe into the ceiling fan in the mudroom. We didn't notice till the end of the day that ...
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2answers
113 views

Sub Panel Conduit

I’d like some advice to connect the main panel to the conduit. It’s 2” conduit to the outside which connects to a detached garage. The problem I’m not sure of is how do I go from this LB box to the ...
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1answer
54 views

Wiring a counter top fryer

I have a deep double fryer I am wiring up, voltage is 208/240, power is 5400/7200 watts, it will be 45 feet from the main electric panel, what size wire and fuses should I use
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1answer
79 views

Can this junction box wiring be used for a duplex receptacle?

! Hi - this junction box was covered with a plug cover That had no openings in it, just a blank cover over the wall box. As you can see from the image we have two cables entering the box from the top ...
5
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1answer
237 views

Can I paint a load center cover?

I would like to paint the cover and door of my flush mount load center to match the wall color more closely. The manufacturer does offer a white in addition to the standard grey cover, but it is hard ...
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2answers
90 views

Best / easiest way to remove old electrical connectors?

I am planning to install gutters on my home. This means I need to remove the old and defunct 1950s style power pegs from my house (see photo). I am thinking sawzall but it might not be the cleanest ...
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0answers
50 views

20V voltage drop across Dimmer Switch

Please help if you can... I just replaced some old 3-way switches with new Maetro+Controller 3 way dimmers. I did this on 2 light separate lights (I.e. changed a total of 4 switches... 2 of these: ...
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1answer
34 views

Is it possible to wire up multiple 4 way switches with power coming into one 4 way and the lights connected to the other

Attached is a picture of how we currently have things wired. Is this possible? How would you go about connecting the wires together. Do I need to move the light output wire to the same box that the ...
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1answer
115 views

How should I connect replacement switches in this four-gang box?

I’m trying to change the light switch in my house which was built in the 70’s. It’s a 4 switch panel, with a flip switch on each end and 2 dimmer turn knobs in the middle. The old switches had: - 2 ...
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2answers
48 views

Half the house has power - Stove, hotwater tank and dryer not working!

I have a 5 unit apartment building, but one unit is having a problem - which is only one side of the panel is working. My electrician has checked the electrical panel inside the unit for connections ...
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2answers
92 views

Can a cooking oil spill-over cause a burnt-out outlet?

A cooking stove with electricity and natural gas has been in place for 20 years. Last month I did deep frying, some of the oil went overboard, touched the electric plate, and some of it instantly ...
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2answers
41 views

What explains a sudden voltage drop to laundry room?

We have a 20 amp circuit running from the service panel to our laundry room, where we have a gas washer and dryer on 120v. We've not had any problems with the electrical system in our house since we ...
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2answers
54 views

Voltage from Neutral to Ground

I have a very specific, and very strange issue that I'm hoping someone with more knowledge can help me with. In my bedroom, the majority of outlets (all on the same circuit) work just fine, and test ...
6
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6answers
8k views

Is the electrical outlet by my kitchen sink supposed to be protected by a GFCI?

Aren't all electrical outlets near sinks supposed to have a safety reset switch? This one is for the garbage disposal but also has outlets for electrical equipment. Should I call an electrician or ...
2
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3answers
58 views

How to install a Wemo Three-way light switch in this configuration?

I currently have this configuration in my home and I would like to replace the left switch with a wemo three-way Smart light switch. I'm not able to find any information online on how to do this with ...
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1answer
57 views

Lighting feeds all meet

The lighting is on one breaker 15amps not really hard to deal with but the feeds some how all come down stairs to the work shop where they dead ended in to a box some where connected by tape and tape ...
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2answers
466 views

Remove a 3 way switch to install fan remote

Newb so be gentle. I installed a fan that doesn't seem to be wired for a separate fan and light switch at the wall, so I capped off the red wire from the ceiling at the fan, and installed the fan ...
1
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2answers
32 views

Wiring smokes in series: one smoke beeps a lot

We wired three smokes. However, every so often (but always in the middle of the night) one of them starts beeping. I suspect that it is not actually being powered by electricity, but off the battery. ...
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1answer
101 views

After hooking up a USB outlet, some of my outlets and switches stopped working

I have recently change my electrical outlets from the standard one to one with a USB port. That outlet is controlled by a light switch. After installing I check to see if there’s power at the outlet ...
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3answers
77 views

Murray Universal breaker

I have a 50 year old Murray box that will not take the current circuit breakers. I need to find out how to order or find the number for a 4 pole 20/30/30/20 breaker that will fit the old style box or ...
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1answer
30 views

3 prong LED light to 2 wire

I bought some LED lights that have a 3 prong plug. I want to wire them into my roof directly to the positive/negative wires in the light socket. Bunch of questions - Is that a bad idea? Can I connect ...
6
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3answers
2k views

Crooked (Not Parallel with Wall) Electrical Receptacle

I recently replaced an electrical receptacle. It was old and the device box was also recessed. So, I added the 1-Gang Outlet Box Spacer Extenders from Home Depot. Now, the receptacle is held ...
6
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4answers
3k views

What cable size do I need to feed a 100 amp sub panel that is 550 ft

I'm building a barn that is 550' away from my house and need to power it. I would like to have 100 amp service from my main house board (200 amp). My house is fed with the typical 2 conductors. I ...
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1answer
85 views

Wiring a light switch

I am trying to install a new single pole light switch in a restroom. I previously had a push button switch that has an off, light, heater, and fan button's and also a light to show when the heater is ...
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2answers
76 views

Can you run an individual wire to link smoke detector together?

In my home, I have a hard-wired smoke detector / fire alarm (https://www.lowes.com/pd/First-Alert-Wireless-Interconnect-AC-Hardwired-120-Volt-Photoelectric-Sensor-Smoke-Detector/1000456469) that is ...
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2answers
100 views

Is heat a concern with a microwave mounted over a wall oven?

I have a microwave over the wall oven. Can’t the heat from wall oven affect the microwave oven and how much space from back of microwave to wall is needed for air flow?
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8answers
292k views

Can I backfeed a portable generator into my house's electrical system?

Is there a safe way to power my house using a portable generator? The power rating for the generator is 6kW, and I want to run my electric water heater (4.5kW) and my refrigerator (0.5kW) and possibly ...
0
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1answer
57 views

Dedicated 20 amp outlet tripped twice

In 2017, I had a new 20 amp circuit (with dedicated GFCI outlet and AFCI breaker) installed by an electrician, which is right below my then two-year-old Square D electrical panel box (with aluminum ...