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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2answers
73 views

Why should a (non-dimming) light timer care about what's connected to it?

I am looking at the spec sheet for an Intermatic STW700W in-wall timer. It says: Switch Ratings: General Purpose: 15 A, 120 VAC, 50/60 Hz Tungsten: 8 A, 120 VAC, 50/60 Hz ...
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1answer
69 views

Is it safe to do a three-way splice in a single gang junction box?

I'm splitting a room by adding a wall into it, and I would like to put receptacles into the new wall. I'm trying to do this making as few holes in the existing walls as possible, so I'm wondering if ...
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23 views

Nest thermost not working with Rheem A/C C wire

My A/C unit was recently replaced. I have a Rheem RGEA14036AJT06XAB. The techs installed a pretty bare-bones thermostat since my old thermostat was reading 5 degrees off. So I decided it was a good ...
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2answers
453 views

Replacing subpanel that was fed with 3 wires

A contractor replaced my subpanel with a new one, and will come back for other work and inspection. (Old subpanel is Federal Pacific.) My home is in California, built in early 1980s. The subpanel is ...
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2answers
45 views

Outbuilding branched from LOAD side of GFCI

I’m usually not this guy, but I’d love to outline my plan and get opinions of what the red flags might be. My treehouse is almost done. It started as a primitive shelter, but is becoming more of a ...
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40 views

Options for lighting a finished room with exposed joists

We're finishing a basement room, but want to leave the old ceiling joists exposed (we like the look). I like how mr16 bulbs light up the room, but I'm having trouble figuring out a safe way to install ...
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1answer
92 views

My ceiling fan is sparking even though i have turned its switch off. What to do? Will it cause a fire?

I was sitting in my room when I noticed that the ceiling fan was sparking and causing fumes. I tried turning it off but neither it stopped spining nor sparking. I'm really worried about whether it ...
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1answer
41 views

Is wiring supplying an integrated HVAC breaker a branch circuit or feeder?

Since this air handler / furnace has overcurrent protective devices in it, would my wiring from the panel then be a feeder or branch circuit? I kind of think it would be a feeder circuit. And that ...
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2answers
74 views

Powering 2 switches from 1 switch, legal? (not 3-way)

Ok, so I have a dimmer that controls a light in an alcove. I'm adding built in cabinets and adding LED strip lighting on the back side of the trim. The LEDs will be powered by a UL rated dimmable ...
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1answer
59 views

Safely possible? Back feed generator through existing 3 wire OR convert to 50A RV service

First time question asker, here. I have read several threads on this site, which is a great resource. I am still unsure if what I'd like to do is safely possible, so here I am asking about my specific ...
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1answer
48 views

Light switch to quickly toggle power on and off for LED control

I installed an led chandelier that is controlled by a remote, which can change the color temperature and dim it. The light came with a 120VAC/24VDC driver. The device came with little instruction, but ...
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85 views

Can a portable generator power multiple circuits in a house?

I'm considering getting a large portable generator to help power our house during rolling brown outs and local electric public shutoffs from our power company. I'm curious though. Can a solution like ...
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1answer
71 views

Is it ok to use 12gauge wire for 10bulbs 3W? [closed]

I want to put 10 bulbs on our wall mirror to make it full size vanity. Here are my questions hope someone can help me . Is it OK to use 12gauge for 10bulbs 3W? I want to use plug for turning it on ...
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1answer
27 views

What kind of dimmer switch and ceiling fan are needed to correctly wire and control a ceiling fan?

I’ve read a lot about how people incorrectly install ceiling fans and control them by dimmers. As a result I want to do it right, but nowhere can I find concrete directions on what I need to do. What ...
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1answer
78 views

My new dishwasher goes bonkers randomly. How can I test if “dirty power” is the culprit?

I bought a brand new dishwasher and within minutes of installing it, the dishwasher started itself, as in clicked "normal" and then clicked "start" all by itself. It has ...
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3answers
87 views

What Wire Gauge and Conduit Size for 15a Cicruit Extension?

I am planning to run power to a very small shed by extending an existing 15a circuit that currently feed only a gate operator (4.5amp). This is located in southeast Michigan. I only need power at the ...
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1answer
30 views

RCCB - Type A vs AC

I would like to install an RCCB at the electrical point that will power a few devices that are going to be in my fish pond. Documentation and general info online say that Type AC RCCB can work with ...
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2answers
670 views

Underground electrical box?

The picture shows the spot in my front yard where an outlet used to be. There is a fourth wire not visible in the picture. We have since brought the grade down about two feet and it no longer makes ...
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1answer
41 views

Can I use both a grounded 120V circuit and 2 wire + ground 240V circuit for 3 wire + ground wall oven?

I have an opening in my cabinetry for a wall oven that has both a 120V grounded circuit outlet and a 2-wire + ground 240V circuit. My oven has a 3-wire + ground connection. Previously, the oven was ...
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2answers
39 views

Bathroom circuits code

I am putting in a 1/2 bath and I am planning my electric. I will be running my current 20amp bathroom receptacle circuit to this new bath so they can share that circuit. Can the new bathroom share a ...
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1answer
20 views

Dimmer stopped working

I had left the dimmer switch for my bedroom light off for a couple days but today I decided to turn it on. The light came up but dimming it caused it to go out. The dimmer then stopped working period (...
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1answer
55 views

what is a “running board” for attaching NM cables perpenticular to floor joists in an unfinished basement?

I need to attach a few 10,12,14-ga NM cables perpendicular to the floor joists in my unfinished basement. They were originally attached to the sill plate. I am doing some insulating&weatherizing ...
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3answers
1k views

Question about wiring multiple lights in parallel as well a multiple lights in a parallel 3 way

Images from electrical-online.com Is the following diagram of multiple lights in parallel valid? There were some people who claimed it didn't work (they claimed their flow followed the diagram, but ...
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1answer
46 views

Bathroom exhaust fan and light switch separation

new here and I tried the search but can’t seem to find an answer to what I’ve got. In my bathroom, I have 2 switches. When top switch is on, bottom off, the vanity light and the exhaust fan light ...
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0answers
50 views

Fix overhead electrical connection to outbuilding for NEC 2020

I have a problem like Best way to make wiring to outbuilding legal. Unfortunately, the answers there weren't specific enough to tell me how to solve my problems. I have an outbuilding that is 3' away ...
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1answer
39 views

Burnt wire in GE stove

I spilled some water on the knobs of my GE stove. 5 minutes later, I heard some buzzing and then there was a brief fire from a knob for 30 seconds. I turned off the gas and electricity, opened the ...
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0answers
17 views

Ceramic Anchor Tips / Counter weights

My whirlpool electric range has three ceramic Anchor-Tip counterweights on the back. Looks like the fourth is missing as there is a place for it. Does it need the fourth? Thanks
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1answer
2k views

What are “backstab” receptacles/outlets?

Several questions and answers on the site mention electrical outlets or receptacles with "backstab" holes (just a short while ago, here). I'm sure people in the US find that description to ...
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0answers
39 views

Light switches are not working, all outlets are

I woke up this morning and realized that none of the light switches in my home are working, however all outlets are still working. I checked the breaker and nothing was tripped, then I went ahead and ...
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2answers
56 views

Add 2 downstream receptacles from a single outlet

I have a receptacle in the middle of a series of receptacles, it has line in and load out to the next receptacle (no pigtails). I need to add another outlet near this receptacle and due to placement ...
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1answer
46 views

Found cabling in junction box with ground cut

I have a junction box in the garage that has cables with 12-2 with ground. However, the ground wires were clipped back to the sheathing. Background: This is an older house with a fair amount of old ...
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1answer
1k views

Should there be insulation inside a light fixture?

I recently moved into a new home, and I was replacing a light bulb when I found this after removing the glass cover. Now, I don't know much about codes and regulations, and I'm new to working on my ...
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2answers
47 views

Is this how I add GFCI and Regular Outlet to existing Multi Wire Branch Circuit, 20amp? 12/3 to 12/2 wiring with GFCI

I have a multi wire branch circuit using two 20amp breakers and a single run of 12/3 wire to a single split outlet in our laundry room. The top outlet (black) powers the gas dryer, the bottom outlet ...
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0answers
73 views

Wall oven microwave combo wired incorrectly. How should I go about discovering what was damaged?

I have a KitchenAid wall oven microwave combo unit. After having some cabinets redone the oven was reinstalled but was wired incorrectly. The 240V circuit going to the oven is only 3 wire (so two hot ...
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2answers
68 views

Breaker/Junction Box

I am currently wiring for a spa. Have dug an 18 in trench. I will run (4) #6 wires to a 60 amp breaker box approx 55ft away from the main panel and then run from that box the additional wiring 25ft to ...
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2answers
72 views

Is it normal for a washing machine to shock you without grounding?

Wrote a long story about me moving my mothers washing machine but decided to keep it short: Machine 8 years old, aesthetically in perfect condition other than some exposed sheet metal on the side due ...
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0answers
53 views

How do I replace insulation around knob and tube wiring

My drywall ceiling developed a large crack over the last two months (after being fine for 70 years), and investigating my attic I discovered the lower layers of insulation were soggy and the drywall ...
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3answers
28 views

Replacing lighting in a 3 way switched hallway with motion detected lights

I have a hallway that makes a 90` turn and there is a wall switch at each end of the hallway. There are 2 ceiling lights, one in each section of the hallway. They are not visible from each other. ...
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4answers
850 views

I am switching out a 8 gauge aluminum wire on a 30 amp 2 pole breaker for my dryer less than 25. Can I use 10/2 copper? '

I have an old house where some aluminum Branch wiring was used. On the oven, water heater and dryer. There is an 8 gauge aluminum wire for the dryer on 30 amp double pole breaker. I already bought and ...
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4answers
102 views

What safety equipment is best for live multimeter testing on 240v?

If you need to test a circuit breaker with a multimeter and you're working in a live breaker box with 240v, what is the best safety equipment to use (eg: gloves, shoes, shield, etc)? It doesn't seem ...
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1answer
37 views

Recommended to have drain hole in PVC weatherproof electrical box?

Is it legal (NEC/Canada) to drill a drain hole in the bottom of a PVC weatherproof electrical box, when used in a wet location? If so, what size is recommended to drain the water out and keep the ...
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1answer
63 views

Arc fault breakers and Subzero refrigerators

I have two Subzero refrigerators. Both are on dedicated circuits. Subzero recommends a 15 amp breaker. Each refrigerators is on a 20 amp arc fault breaker. They tripped the breakers 4 or 5 times each. ...
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5answers
515 views

What is the failure mode of making an adapter to convert a 240 V outlet to 120 V

I have an EV charger that uses a NEMA 14-50 outlet with 6 AWG back to a 50 amp breaker. The outlet is in a location where there are no nearby 120 V outlets and it would be convenient to occasionally ...
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2answers
468 views

How much space is needed for an outlet between window frame and counter top?

How much minimal vertical distance is required between the kitchen counter top and window frame for placing an electrical outlet? We are starting a kitchen remodel.
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3answers
56 views

Does this seem like the right place to tap a C-Wire from my heater?

I need a C-wire for my thermostat but my heater only has R and W connectors (red circle). On the schematic on the heater, up top (red arrow), looks like: 5 is 24V Gnd (bit hard to read but i've ...
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0answers
39 views

Replacement of light switch connected by wires of 5 different colours

My light switch is connected by wires of 5 colours. After breaking the original one, I tried to replace but no idea about the colours, no label on the connector. Black and white were twisted together. ...
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3answers
92 views

moving service entrance and upgrading to 400A with 200A workshop and 200A existing House panel

Im Adding a workshop needing its own 200A panel, and power company (TEP) is requiring me to move the service entrance from the house to the workshop (and upgrade to 400A panel) the house is to be ...
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3answers
84 views

Battery Backup for 240V (USA) Water Well

I have a well pump. I want to build out a battery backup (and, eventually, charge the batteries with solar and, more eventually, move to solar full time). It's 1/2 horsepower on a 240v circuit. It's a ...
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2answers
83 views

Can I disable an old security system by disconnecting the transformer?

I switched from my old security alarm to a diy alarm system. I want to completely shut down the old alarm system and keypad. Is I possible to remove the wires of the transformer? I don't know what to ...
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3answers
97 views

Does power distribution within a house need individual neutral lines from the circuit breakers?

My house has "star connections" (from the central circuit breaker panel box) for the neutral lines to power different rooms, as is normal. There is no GFCI to worry about. Would any problem ...

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