The installation of wire and/or electrical devices, to allow the transmission of electricity from one point to another.

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Connecting a digital timer with 4 wires in a box with only three wire, white, black, and ground

I installed a digital timer in a box that previously contained a switch to an outside porch light. The box has only a white, black, and ground wire. The white wire in the box is hot, not the black, ...
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1answer
348 views

What is this orange clip my ground wire is connected to?

I am trying to replace a dome light with a nice small ceiling fan. When disassembling the old light, I notice an odd orange/clear clip connecting the lights ground to the house. What is this called, ...
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11answers
19k views

When wiring outlets should I use pigtails or both sets of outlet screws?

I'm replacing the outlets in our house and pulled out one that had two black and two white cables. My first thought was that it was two circuits, one of them being switched, but then realized the tab ...
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2answers
8k views

How can I separate a light switch to power two different devices?

My house had an addition after it was built - a covered porch which includes a lit ceiling fan. I very recently screened in said porch and love it out there. When the initial addition was put on, ...
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1answer
986 views

How can I add 100 amp electrical service to a shop?

I am going to wire my shop and want ot run #2 copper to a 100amp breaker panel. I really do not have the space in the 200 amp panel in the house, my question - is there a way to pull this wire off the ...
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1answer
2k views

Can I connect two load lines to a GFCI receptacle?

I just bought a leviton GFCI and the instructions say if there are two load lines in the box, do not connect the GFCI in that box. I can't understand why this is a problem, especially since the ...
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1answer
605 views

How do I appropriately/safely connect multiple power tools to a 20-amp outlet?

I've got a collection of power tools in my garage, most of which are connected to a 15-amp circuit, that is also shared with all the exterior power outlets. So, if I'm using the mitre saw, tablesaw, ...
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1answer
2k views

Why are some submersible well pumps wired with solid and others stranded?

I was helping a friend change his deep water well pump which is rated at 220 volts AC,3/4 H.P. Most of these I have seen are wired with three yellow wires that run from the pump to the pump switch on ...
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4answers
3k views

Do you know any switches which turns on/off based on day light?

I am looking for having some sensor based switches which will turn on/off the lights based on the light conditions during the day (i.e. turn on when there is less light and turn off when there is more ...
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3answers
10k views

How do I replace a GFCI receptacle in my bathroom?

we're remodeling our bathroom and were simply looking to switch out 20 year old light almond outlets and light switches for white. While I thought this would be easy I've run into a problem with the ...
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5answers
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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 ...
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1answer
841 views

Which color wire do I connect the switch to on a power cord?

I am trying to add an on/off switch to a power cord. i opened up the cord and there is a black and white wires in there. I know that the switch will work on either one, but is there a better wire to ...
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3answers
2k views

What should I do about a receptacle with 2 circuits going through it where white wires are hot?

I have a receptacle that has 3 white wires and 1 black. The black wire is hot and 2 of the white wires are hot but on a separate circuit than the black one (2 bedroom's outlets on separate circuits ...
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3answers
6k views

How can I attach modern fixture to knob & tube wiring?

I have a modern external light fixture that needs to be attached to an existing exterior electrical 'box'. The older parts of the house have knob & tube wiring and there is evidence of gas ...
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1answer
386 views

What is the labeling scheme on these outlets?

This is in a hotel, where there are obviously many, many circuits to manage. Can we tell what information is encoded in these labels?
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1answer
513 views

Why was the speaker wire installed this way for a media room?

I recently moved into a relatively new home. The home was never occupied and has a media room. The media room has the following (see picture for locations, speaker wire is in blue, speaker wire has ...
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1answer
542 views

Potential wall socket fault

I'm remodeling a room and sorting up a rat's nest of questionable electrical practices... boxes hiding in the wall, wall fixtures being used to branch circuits, etc. At this point, all of the hard ...
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1answer
6k views

Network Garage Door opener/ how does the switch work

I'm trying to connect a relay/switch to a Garage door(Lift Master). I know that there are two wires to trigger the garage door. I'm not sure how it works exactly. I'm trying to control the garage ...
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1answer
4k views

Running cat 6 networking cable in the attic: what is up to code?

I plan on adding a Cat 6 network in my single-story detached home. It would consist of home runs from each of the 3 bedrooms + TV room to a central patch panel in the garage, which is close to the ...
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3answers
2k views

How much can you do as a homeowner in Texas without requiring a permit/inspections? [closed]

Backstory: we recently added some furniture to a previously-unused room to make it a quickie guest bedroom for some upcoming family visits. On a whim, I got my electrical tester and plugged it in to a ...
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2answers
3k views

It is dangerous to have a power outlet run from a light circuit?

Re this answer regarding wiring a garage door power point from a light is this legal I thought it wasn't but just checking. Edit: Legality will depend on location as mentioned in answers, I worded ...
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2answers
665 views

Is a negative reading from a non-contact voltage detector sufficient?

I'm a beginner at doing electrical work, and I want to make sure I'm not taking unnecessary risks. Let's say that I'm preparing to work on some wiring. I have a non-contact voltage detector that ...
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2answers
3k views

Is this fluorescent light fixture a major electrical problem / fire hazard?

(I am a new homeowner.) I went to replace a some fluorescent tubes that looked like they burned out, but after disassembling it a little to get the tubes out, I saw something a little alarming: ...
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5answers
3k views

Is it safe to run a USB cable inside a wall?

I need to extend a USB device from a corner of my room to the above the fireplace. Since I'm already going to be installing some HDMI and audio cables through the wall, I'd like to have my USB device ...
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2answers
3k views

Replacing chandelier, how many lights can it support?

I want to replace a chandelier that currently has 2 bulbs, and I want to replace it with one that has at least 5 bulbs if possible. We live in an older building (built in 1912), and a friend warned me ...
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1answer
2k views

Do I have to use armored (MC) cable to connect to a pot (recessed) light fixture?

Most of the recessed lighting fixtures I see in stores have a metal junction box separate from the can. There is an armored cable running from the junction box to the can already. You connect your ...
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3answers
709 views

Cannot figure out wiring of most basic Honeywell thermostat (heater only)

I live in an apartment with central heat. It's controlled by a round Honeywell thermostat. The heater ticks really loudly and annoyingly when it heats up and cools down (probably a topic for a ...
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1answer
1k views

Any reason not to ground the sheathing of MX wire?

Having recently bought an older house (c1943) I am doing a little work on the place. While rewiring a light switch I noted that there is newer Romex wiring from the distribution panel to the switch, ...
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1answer
696 views

What would cause a ceiling fan to stop while the light still works?

Installed a new fan/light today. Wiring appeared to be identical to old fan we removed. green ground to green ground on mounting bracket. white to white. black and blue to black. Turned it ...
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4answers
12k views

Will an existing 10-3 w/ground electrical wire handle a 50 amp 220 volt welder?

I am wondering if my current electric service wiring can handle a welder. The welder documentation recommends a 50 amp breaker on a 220 v line. Currently I have a 60 amp breaker on a 220 line going ...
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1answer
377 views

How should I install a signal cable duct from new home office to a wiring closet?

I'm constructing a new home office and rather than having fixed cables from the (existing) wiring closet, I want to have the flexibility to add/remove/change cables in future, so I've been looking at ...
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1answer
365 views

Can I use a transfer panel with something other than a generator?

What I am trying to do is use a transfer panel to power some 15-amp sockets with ether a dimmer pack, or from the main. (trying to set up a theater space so when there's not a show going on you can ...
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4answers
6k views

Why is it safe to use 15 A receptacles on a 20 A circuit?

OK, the one answer I got was way off target, and another commenter couldn't figure out what I was asking, so I'm restating the question... Are 15A 3-prong grounded outlets actually rated to 20A, ...
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0answers
52 views

Duplex Outlet's Max Amperage Rated by Socket or by Whole Unit? [duplicate]

Possible Duplicate: Duplex Outlet's Max Amperage Rated by Socket or by Whole Unit? If you have a duplex outlet thats rated for lets say 20 amps, is the whole unit rated for 20 amps, or ...
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4answers
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Is a duplex outlet's max amperage rating for each socket or the whole unit?

If you have a duplex outlet thats rated for lets say 20 amps, is the whole unit rated for 20 amps, or is each socket rated for 20 amps? Edit: So if I had a circuit that had a 40A breaker on it, could ...
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2answers
858 views

How do I connect a stranded wire to a bus bar?

A typical bus bar has this design: and connecting a solid wire to it is more or less easy. But how do I connect a stranded wire? I expect the following to happen: when I drive the screw in, the ...
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2answers
5k views

Can I split the direct wire to dishwasher to handle a garbage disposal as well?

I've just plumbed in a new garbage disposal unit under my sink. The plumbing appears to be fine - nothing is leaking so far. Now I need to wire it in. It's next to a dishwasher, but the dish-washer ...
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3answers
325 views

How to hide light-colored wires in a dark-colored cabinet?

I'm installing some LED lights in a particle-board cabinet. The cabinet's walls have dark-colored veneers (nearly black), while the wires to the LEDs are beige, and would stand out quite prominently. ...
4
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2answers
651 views

Installing a ceiling fan into a socket with 3 wires jammed into the socket

I recently purchased a ceiling fan thinking it would be a fun DIY project but when I went to install it, I came across many problems. I have attached a photo of my ceiling fan socket on the ceiling ...
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1answer
2k views

When is it generally safe/acceptable to use a wire nut?

Can someone please clarify for me when exactly it's safe/acceptable to use wire nuts? Regional building codes withstanding, I think the general rules of thumb are: Only use wire nuts in ...
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3answers
2k views

How should I go about fixing a faulty 240 V Electrical Outlet

This afternoon, my wife and I noticed a peculiar smell coming from the garage. We localized it to a faulty 3-wire 240 V outlet. Something got really hot resulting in part of the rubber melting on ...
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3answers
477 views

Why would lights plugged in to lamp holder outlet adapter be testing as live?

We bought an old pendant light for our flat, with a two prong plug. Rather than rewiring it in to the existing outlet, I just bought one of those $2 lamp holder outlet adapter. To be on the safe ...
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2answers
1k views

How do I use this H/L/V Wiring?

I am replacing an OLD h/l/v with a BROAN 100HFL I DO NOT have a 12/2 and a 12/3 coming from the 3 switches on the wall. I DO have this, two 12/2 coming from the 3 switches AND another 12/2 that ran ...
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2answers
546 views

We have a light switch in the kitchen that is wired to the central ac?

We bought our house 2 years ago and thought this was just an unused switch, it doesn't turn anything on that we can see. Then the other day my husband was putting up a ceiling fan in the kitchen and ...
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3answers
1k views

Could a power outlet be ruining hair straighteners?

I'm not sure if this is the right place to ask this. We've gone through 3 hair straighteners in the past 2 months. 3 different models, 2 different brands. The outlet is a normal outlet (No GFI) and ...
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1answer
2k views

How can I replace a light fixture?

I need someone to sort out this wiring question for me. I'm trying to hang a flourenscent light in the garage, however, when I took the old garage light out (one of those round, single light ...
4
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2answers
642 views

GFI reset is behind refrigerator, need to remove refrigerator from circuit and relocate GFI

I am looking at purchasing a home in Florida, built in 2005. Our home inspector was not the smartest cookie in the jar, but accidently discovered some strange things. So far, this is what I have ...
4
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1answer
232 views

Where can I purchase push button electrical switches?

Our old house has push button light switches. I would like to find some modern replica switches and face plates for use in some electrical improvements. I have checked at our local home improvement ...
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5answers
12k views

Is there an NEC-compliant method of repairing minor damage to electrical wire insulation without a junction box?

While trying to pry loose a stubborn cable staple that fastens a 14-gauge electrical cable to a stud, I accidentally tore a very small hole through both the outer jacket and the insulation around the ...
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2answers
3k views

Do I need to “protect” low voltage cables that are run through an insulated wall?

I'm planning to run speaker cables from a new outlet at an uninsulated wall to a new outlet at an insulated wall. I've already run Cat5e and coaxial cable to the uninsulated wall, and am comfortable ...