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

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2
votes
2answers
16k views

Where does the ground wire go in a 3-prong dryer cord configuration?

We moved to a new place where the dryer connection is 3-prong instead of 4-prong. The dryer was originally 4-prong, so we bought a 3-prong cord and installed it. It works fine, except I am not ...
7
votes
2answers
22k views

What wire gauge do I need for a 100 Amp subpanel at the end of a 60' wire run?

I am adding an attached garage to my house. I'm going to be putting in a 100 Amp subpanel which is about 60 feet away and run through the basement joists. What gauge wire do you recommend for ...
11
votes
3answers
9k views

How do I run ethernet, speaker wire, and coax through a wall into a crawlspace?

I would like to run three low-voltage cables from my entertainment center through an old plaster wall, down (1-3 feet) through the sill plate, and into the crawlspace. The cables are Ethernet, ...
8
votes
1answer
4k views

Can Romex (NM-B) be run through conduit?

A few days ago I asked an electrician if I could run Romex through conduit - he gave me a funny look and said "No, Romex is not allowed in conduit." When I searched online, there seems to be a wide ...
0
votes
3answers
2k views

How can I wire an exhaust fan to turn on from multiple locations?

I just bought a Panasonic FV-20NLF1 inline bath exhaust fan that I planned to used to exhaust 2 different bathrooms. I want each bathroom light switch to control the fan, so when the lighting turns ...
13
votes
4answers
4k views

What should I use to secure/organize data cable runs?

I am running Cat-6 and Coax in new construction. I am looking for advice/best practices on how to organize and secure the cables during the runs. I will be running 2 Cat-6 and 1 Coax to a ...
10
votes
5answers
42k views

How should I run wiring for my above-fireplace mounted TV?

I'm going to mount my 47" LCD above my fireplace. I'm not looking for arguments against this decision. I'm looking for wiring solutions. The diagram below should help explain the situation. ...
8
votes
2answers
2k views

How do I run a wire underground to an outdoor post lamp?

I live in Geauga county Ohio. My question is three part. First what type of wire do I need to run from the house underground to a post lamp 100 feet away? Second,does it need to be in conduit and ...
5
votes
2answers
2k views

How do I wire my wall-mounted HD TV?

This image wall-mount setup should give a good idea of the current TV set up on the wall. I wanted to use a SmartStrip to power my TV and all the other devices (receiver, BluRay player, Wii, cable ...
12
votes
3answers
44k views

What is a GFI outlet used for, and where should I install them?

What purpose does a GFI serve? Where should they be used?
13
votes
4answers
52k views

How do you know when and where it is safe to drill into a wall?

Lots of home projects involve cutting or drilling through walls (everything from nails, screws, or hooks to mount things to cutting through drywall and drilling through studs to run wire). In ...
5
votes
3answers
5k 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, ...
4
votes
2answers
769 views

How do I properly feed coax through an outside wall?

I would like to add a new cable outlet to an outside wall and wanted to find out what kind of drill bit is needed to drill through and feed the coax cable as well as anything else to be mindful of. ...
4
votes
6answers
10k views

How should I wire for a security system during construction?

I would like to run wires in anticipation of a future hard-wired security system. However, I have yet to find any information that pulls everything together regarding what is required. From what I ...
13
votes
6answers
4k views

What is the right way to strip power wires?

I've been working with electrical circuits as a DIYer for years, including electronics and powerline work. But one thing I always feel like I do a terrible job at is stripping wires: both the outside ...
6
votes
1answer
227 views

How do I terminate coaxial cable in a crimp on F type connector?

I've got some coaxial cable, and I'd like to put F type connectors on the end so I can use the cable to connect my TV to the Cable box. How do I put ends on the cable?
5
votes
4answers
2k views

What are some ways to wire rear speakers in a home theater system?

I have two rear speakers, that I never use, since I don't have a good way (yet) to wire them. I have a hardwood floor. And the side of the room that is nearest to the TV+Audio source is open. So I ...
4
votes
3answers
1k views

How can I wire this three-way circuit between two buildings with only 3 conductors?

I am rewiring my entire house after a major malfunction of two antique knob and tube circuits. I'm up against a challenge with some outdoor lights. Here's the situation: I have a detached garage. It ...
4
votes
2answers
2k views

Do open-back low voltage boxes have advantages over standard outlet boxes?

I will be running LV wiring in new construction. I've seen the open backed Carlon boxes, but have read that they are difficult to insulate, and therefore should not be used on exterior walls. I ...
3
votes
2answers
354 views

What is the maximum 12/2 wire length from a 20A breaker to a baseboard heater?

What is the maximum distance from a 220V/20amp circuit breaker to an 2000 watt electric baseboard heater using 12/2? At what distance would it require 10/2?
3
votes
4answers
2k views

How can I verify that the protective earth/ground is separate from the neutral wire in an electrical AC installation?

It's easy to verify which wire is the phase without relying on wire colors. But I'm not sure if I'm able to determine which wire is the ground and which is the neutral. I have heard that using a ...
3
votes
1answer
5k views

How should I wire this White-Rodgers fan and limit control? What about the thermostat?

I have a wood-burning stove, that is used as an auxiliary heat source in the house. There's a regular electric furnace, and adjacent to it is the stove. The warm air duct (out) from the stove ...
2
votes
1answer
2k views

What are the codes for electrical wiring in attics?

What is the typical code for wiring in attics? I understand these vary but what's best practice? Can you just have electrical wires exposed with all the junctions, in junction boxes, provided all the ...
1
vote
4answers
1k views

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 ...
20
votes
6answers
23k views

How do I wire an old house with Cat6?

I have a older home (build in the 50's) with 1/2" dry wall and then plaster on top. I would like to run Cat6 cable through most of the house (living room, kitchen, entertainment room,etc). So, I'm ...
7
votes
11answers
15k 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 ...
6
votes
4answers
2k views

How Do I Plan for an Intrusion Detection System?

I would like to plan for an intrusion detection system in a home that is currently under construction. The home has a walkout basement that is sloping, shown in the rear elevation picture shown ...
4
votes
1answer
280 views

What should I do about old cables that have been damaged?

I was replacing some drywall and noticed the wiring underneath has a couple of surface tears. House is from the sixties, but has been rewired with new Romex, except this circuit. Wire seems to be old ...
13
votes
3answers
6k views

Is running ethernet cable through an air return allowed under US code?

I'm looking to wire up the second floor of my house and the cold air return provides a convenient, straight run from the office to the utility room. Is it safe and within code to run ethernet cable in ...
7
votes
3answers
3k views

Can I use two wire nuts instead of one to connect 6 wires inside a 3-gang box?

Is it considered acceptable practice to use two wirenuts in a situation where it is possible to use only one but may be easier to use two? I have a three-gang box with six cables coming into it. The ...
7
votes
1answer
991 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, ...
6
votes
5answers
10k 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 ...
6
votes
3answers
2k views

What to do with an apartment with only 2-pronged outlets

I just rented an apartment (Colorado, for what it's worth RE code) that has 2-pronged outlets throughout the place except for two GFCI's, one in the bathroom and one in the kitchen. I bought the ...
5
votes
3answers
6k views

How can I rewire my bathroom fan, light, and receptacle?

My bathroom has one switch that powers the fan and light. In that electrical box, there is also a hard wired electrical outlet that sits in the bathroom. Since I don't have room for a 2 gang box in ...
5
votes
2answers
4k views

How to determine the correct capacity for a sub-panel for a shop?

I plan to install a sub-panel for my woodworking shop, and would like to determine the total capacity that should supply that sub-panel. These are the main items that will likely be running in the ...
3
votes
2answers
2k views

Can I install a Subpanel (in a seperate building) using a 3 wire connection (2 hots and 1 grounded neutral)?

Can I use a 3 wire connection (2 hots and 1 grounded neutral) to install a subpanel in a seperate structure if I install a seperate ground rod to the grounding bus in subpanel? I have 8/3 w/o ground ...
3
votes
1answer
1k views

When wiring a switch loop, which wire is which?

If you're wiring up a lighting circuit, where the power enters at the lighting outlet. According to the National Electrical Code, which wire should be "hot" and which should be "switched hot"? ...
3
votes
2answers
2k views

Is this a valid way to add an electrical outlet?

I've got a feed from my electrical panel in the garage to a single outlet inside the house (for the entertainment center). This was installed by an electrician back in 2009. Through the garage, the ...
1
vote
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 ...
0
votes
1answer
5k views

Why is my Australian light fixture wired this way?

I just want to replace it with a new light fitting philips tcg701 but there's way too many wires and I don't know why it was done this way.
19
votes
4answers
2k views

How can I get a wire that is outside a wall to be inside a wall

I recently removed an abominable drop ceiling from my dining room and found this close to the ceiling on the one side of the room. There is definitely a stud between these two holes. On the other ...
9
votes
1answer
628 views

What type of connector is this and how do I remove it?

I was trying to install a ceiling fan in my apartment and came across these connectors when removing the light. What is this and how do I take it off?
8
votes
1answer
356 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 ...
8
votes
2answers
1k views

Is there a standard wiring scheme for AC/heater thermostats?

I have a project idea where I would really like to be able to make my own thermostat to control my home's AC and heater. I have just two questions Is there any standard wiring/color code? Are any ...
7
votes
2answers
583 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 ...
7
votes
2answers
5k views

What gauge speaker wire do I need?

I am looking to run some speaker cable through my unfinished basement. I will need 35 ft long cables for a couple of Technics SB-A10 speakers. What gauge of cable will I need? How is the gauge ...
6
votes
3answers
914 views

Is it okay to run a switched and unswitched hot on the same neutral?

I have a room where I need to toggle the lights by a switch and the outlets in the room to not be affected by the switch. As they are on the same circuit, am I able to run a 3 wire cable from the ...
6
votes
2answers
692 views

Is there a name for a duplex outlet that takes eight wires, plus ground?

In my home (built around 1970), I found a bizarre outlet when replacing the dated old ones. The front is your standard duplex, but on the back there are holes for 8 wires (4 hot, 4 neutral) plus the ...
5
votes
2answers
2k views

Can I wire a refrigerator and dishwasher on the same circuit?

Can I wire a refrigerator and dishwasher on the same 20 amp circuit?
5
votes
1answer
2k views

What type of wire should I run when updating a ceiling fan?

I started to change out my ceiling fan and noticed the support brace is actually laying on the drywall and not firmly attached to a beam. I also noticed the new fan has a blue wire where the wiring in ...