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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6
votes
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 ...
0
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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 ...
0
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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?
20
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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 ...
0
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1answer
78 views

How do I add a receptacle outside off the porch light

I put in a gazebo in the back of the house and I want to install a receptacle from the only electrical source which is a porch light. I could just run some wire thru the base of the light and run it ...
6
votes
4answers
13k views

When to use electrical tape rather than wire nuts?

I was always under the impression that wire nuts created a better electrical connection than using electrical tape. I'm still under this impression and I think it is correct. However, I was taking ...
0
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3answers
73 views

how to wire two switches in one box with three wires , two of the go to different lights, which one is hot

If somebody could help me with this, please! There are two switches in a box. I wanted to put a timer on one switch, so I disconnected it. Then I realized that the timer needs a neutral and there is ...
1
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1answer
30 views

Best way to ground an Intersystem Bonding Termination (IBT)?

What is the best way to ground a IBT? To the main panel ground bar? directly to the UFER grounding electrodes? Or to install the IBT on the meter base?
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0answers
30 views

Microwave resets after ~4 seconds heating

Samsung Model ME21F707MJT Over the Range Microwave built in July 2013. It was working until trying to heat something caused it to completely shut off after a few seconds. I unplugged and tested the ...
0
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1answer
119 views

Sockets not working but circuit breaker hadn't tripped

We came back from holiday to find that some of our mains sockets were not working. I checked the circuit breakers but none of them had tripped. Eventually I found out that by turning the switch on the ...
0
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1answer
70 views

20amp breaker keeps tripping

I have a 20 amp type QO GFCI circuit breaker (12 GU wire) that is tripping under load. My home is about 5 years old and the breaker provides power to half of the kitchen outlets and part of the dining ...
5
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2answers
83 views

Box fill calculation for isolated ground receptacles

After too much reading on what I thought would be straightforward, I'm a bit turned around on calculating box fill, and hoping I could get some help in doing so. Here is a diagram of the circuit: A ...
0
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1answer
20 views

Power Supply change for ceiling fan controler

I currently have a 110v ceiling fan with a speed control switch. Is it possible to change the power supply to 220v? If possible, do I need to change the control switch only? Thanks.
1
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1answer
51 views

Ceiling options when junction boxes are present?

I know that traditional drop ceilings are an acceptable choice when junction boxes are present in the floor joists. I was looking around at Home Depot for pricing and found this PVC system that ...
1
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4answers
186 views

How to select the most appropriate indoor LED bulb color

I want to buy LED bulbs to install in all the rooms and I don't know What are the criteria to select the proper ones (for eye and physiologically good). How to distribute them in every room ( I mean ...
10
votes
2answers
16k views

How to open NM box knockouts?

I've found the knockouts in NM boxes hard to fully open. I've had trouble with both Carlon boxes and Madison Smart Boxes. The plastic molded to make the knockout is very resistant to actually being ...
3
votes
2answers
20k views

Why is my switch controlled receptacle always on?

I replaced the outlets and switches in a room. One outlet now has constant power, the switch no longer turns the power on and off (to control a lamp for example) as it originally did. For ...
2
votes
1answer
52 views

Oven broiler has stopped working, but broiler element seems fine

I have a Whirlpool GJP84802 electric range and oven. Recently I've noticed that the broiler has stopped working. I had replaced the broiler component about a year and a half ago because it looked like ...
0
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2answers
87 views

Bathroom light fixture above sink and ceiling fan/light combo wiring issue

Hey so I'm having an issue hooking up a bathroom light fixture above the sink with a bathroom ceiling fan/light combo. 1) for the light fixture above sink: coming out of the wall there appears to be ...
0
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2answers
943 views

Electric Bidet Toilet seat started tripping GFCI

I have an electric bidet toilet seat that plugs into the GFCI outlet in my bathroom. After about 6 months it started tripping the GFCI instantly upon being plugged in. Does this mean the toilet seat ...
0
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1answer
46 views

Different light fixture in basement on pull switch

I have more than six light fixtures in the basement each has its own pull switch each fixture is getting it's power from some where from each room upstairs and I like to know how can I add a switch so ...
4
votes
2answers
629 views

How to add a 400v 3 phase plug and/or extra distribution panel with only two breaker spaces left?

I have a few 400v appliances with 5 pin plugs (pressure washer etc.) but no 5 pin plugs. I would like to easily add a 5 pin 400v socket to my existing fuse boxes, but I only have two breaker spaces ...
1
vote
1answer
76 views

Okay to remove light switch and cap wires?

I have a dimmer switch that’s currently controlling a set of ceiling lights. I’d like to install smart bulbs in those light fixtures, which don’t play well with the dimmer. Since I want power to the ...
2
votes
5answers
133 views

Reason GFCI breaker popped?

When a GFCI breaker pops, is there a way to tell whether it popped for the GFCI reason or because of excessive current?
1
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0answers
34 views

C-Wire for a Vulcan Gas Central Heater for Nest Thermostat-E

I'm hoping the friendly people here could help me. I'm looking to purchase a Nest Thermostat-E but my current thermostat (Vulcan/Bonaire Summer Breeze) only has 2 black wires connected. I've searched ...
8
votes
5answers
6k views

Dishwasher electrical connection up to code?

When I removed my dishwasher in order to level the floors and install new flooring, this is what I found: It looks like the electrician just left the wire sticking out of a hole in the wall, but not ...
1
vote
0answers
25 views

4 way dimmer with 3 other switches

I have a set of canned lights that are switched from 4 different locations and each of those switches have 4 wires to them. How can I use a Dimmer Switch? I have installed Numerous 3 way dimmers in ...
1
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0answers
19 views

wiring up new air mover

I have a central air system and my squirrel cage fan inside the house started humming and then stopped. I figured it was the capacitor but I found a whole new fan for just a little more. Im having ...
0
votes
1answer
69 views

Where should I connect my ceiling fan's blue wire?

I want to install a new fan and light assembly. I removed the old one, which on the wall is a hard wired 2 switch, one for the fan and one for the lights. Coming out of the ceiling is a white, black ...
1
vote
2answers
63 views

How to calculate wattage used in a solar panel set-up

I want to run an electronic that uses 300 watts @ 5-10 amps via solar panel's on my rv. I've got (2) 6 volt batteries set up in a series so it is 12 volts. Here are the stats for one battery (so I ...
5
votes
2answers
205 views

What are the drawbacks of using a GFCI instead of a proper ground wire?

I notice that it is considered up to code to install a GFCI in the absence of a proper ground, but that it must be labeled (link). Why is this? Does the GFCI have some drawbacks compared to a proper ...
1
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1answer
50 views

Wall switch to half hot outlet both standard

Why do I have 2 feed lines coming into my switch box both are black, white and ground. Thanks.
0
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3answers
154 views

Sharing 1 dryer outlet

I have a situation where there are two apartments and one laundry room. Room for 1 washer and 1 dryer. There are 2 circuit boxes and 2 meters. We want to have a run for each circuit panel the dryer ...
2
votes
1answer
30 views

Fixing suitable for corrugated conduit inside a chased masonary wall and suitable clips?

I was looking at some Corrugated Conduit Black 20mm X 10m and I was wondering what fixings would be suitable for terminating inside a wall connecting to the backbox (the gland). I can find glands for ...
1
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2answers
71 views

Old light switch wiring question not using black wires?

I pulled off a light switch and was going to replace it, but the wiring seems non-standard. The switch is evidently a three way, but has no ground. It has a brass common screw and two traveler screws. ...
0
votes
1answer
34 views

Light fixture wiring help

I have a flush mount ceiling light fixture with 2 bulbs, also has included 2 sets of black and white wires for each light bulb. This is where I am having trouble the little box in the ceiling has 4 ...
2
votes
2answers
4k views

Is it advisable to run electric cable inside a steel pipe?

When I had the piping of my house redone, they left most of the old pipe for cold water in the wall. This is a 18mm steel pipe which runs vertically through (almost) three storeys. Currently, I am ...
1
vote
2answers
51 views

Replacing a GCFI plug on my fan

I have an indoor/outdoor fan that has a GCFI reset plug at the end of the power cord that has tripped and will not reset. Can you tell me the proper method to replace it? I have extremely limited ...
0
votes
1answer
53 views

Light Switch/Dimmer Question

Looking to re-wire a room with a bit different design. Goal: I have a room which is a living room on one end and an office on the other (two zones if you will) where I am installing can lights. I ...
0
votes
2answers
2k views

Is 12 gauge electrical wire ever wrapped in a white housing?

I am trying to add a new outlet by branching off an existing one (for my mounted tv). The cable that goes into the box contains one white cable and one black cable that has an extra red wire (as part ...
0
votes
2answers
141 views

3 wire existing feed, not connected to main panel. Do I bond ground and neutral

I have a detached garage that has a 3 wire feed, powered from a separate 100amp disconnect from the main panel. Originally the old box had the ground and neutrals together on the same bar. I ...
6
votes
4answers
58k views

How can I stop this GFCI receptacle from tripping?

In my garage I have two wall receptacles on opposite sides of the garage. On one side the receptacle is a GFCI receptacle and the other side is a normal one. In the normal receptacle I have a small ...
11
votes
6answers
22k views

Why would there be a 50 amp plug on a 30 amp appliance?

I have an old conveyor dryer, which my office purchased used some time ago, just sitting in storage. The dryer is for silk screen t-shirts and has a large heating element and a variable speed conveyor ...
1
vote
3answers
84 views

4 units 400 amps split from 6 gang meter box

I’m in Los Angeles and I have to run new service to my house because I’m building a duplex in the back of my property. Currently I have two units that appear to be running off 30 amps, but I find that ...
1
vote
1answer
78 views

Fix issue with 2 independent lights on single source

I inherited an electrical conundrum. In particular, two hallway lights on the main floor and upstairs, sharing a circuit and each independently controlled by two switches, both on the main floor. ...
1
vote
1answer
176 views

How urgent is it to resolve two-prong problems?

I have read How do I use three-prong appliances when my outlets are mostly two-prong?. I have recently moved into a house that has some two-prong and some three-prong outlets. The place in the ...
1
vote
1answer
71 views

What type of cable is this?

What type of cable is this? I found it in the wall without any junction box just taped off at the end with electrical tape. Thanks!
6
votes
2answers
25k views

Getting shocked by a neutral wire

I'm trying to figure out how I got a shock from a neutral wire. I didn't think it was possible until I read this article on being "in series with the neutral." Here's what happened: I was ...