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

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12
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4answers
939 views

What is this 110/24V 60Hz transformer in the breaker room for?

My friend sent me a photograph of this transformer, which is installed above the main breaker panel, with leads running from the panel into the transformer. The stamped labels read PRI. Volts: 110 ...
4
votes
1answer
4k views

What are the requirements for wiring an unfinished garage with lights and outlets?

I found this DIY article online which suggests that running Romex along the center faces of studs and rafters was code compliant for unfinished garages. How to Wire a Garage The article is dated ...
4
votes
2answers
3k views

How is pre-wiring done for motion sensors / alarm system in new construction?

In new construction, how is pre-wiring done for alarm systems, when then alarm may not be installed right away (or ever)? It makes sense to me to actually install recessed door contacts (they're only ...
3
votes
2answers
618 views

Term to describe two circuits run through one /3 cable

For example, I have a 12/3 cable in which the red and black wires are controlled via separate breakers. The 12/3 drops into a single-gang outlet, out of which runs a 12/2 to another room. Is there a ...
2
votes
2answers
1k views

how can i find electric short from room to fuse box?

When I came home last night the wife was setting in the dark in the bedroom. Why are the two hall lights strobing I ask? She did not know, she took a nap and when she woke no power in the room. ok??? ...
3
votes
2answers
1k views

Can I piggyback a thermostat with a C Wire hookup on a furnace?

I'm trying to install a new thermostat that needs a C wire hookup. There are currently 4 wires running from the thermostat to the furnace, none of them are a c wire. When I look at my furnace itself ...
2
votes
1answer
246 views

What hardware do I need to have a wireless light switch in UK/Ireland?

Builders are converting my attic at the moment and stupidly, the electrician only installed the light switch for the attic at the bottom of the stairwell so there's no actual light switch in the room. ...
2
votes
1answer
850 views

How do I detect and repair faulty wiring?

Recently, during a storm, an outdoor spotlight was broken in its socket, its internal wiring shorting out. The lights happen to be on a motion sensor, and in turn on switch, and a breaker at the ...
6
votes
1answer
2k views

How do I wire these dimmer switches? The current wiring is crazy

I've installed light switches in other parts of our house, but there is one pair of dimmers that mystifies me. One is a normal dimmer and one is supposed to be a three way dimmer, but the latter is ...
7
votes
1answer
42k views

What wire gauge should I use with a 30 amp breaker for a 220V welder?

I am installing an outlet in my garage for a 220v mig welder. The welder specs call for 30A breaker. The outlet for the welder is only 2 feet from the garage sub panel. The wiring refernece charts ...
8
votes
1answer
25k views

How can I override a motion detector light?

I am going to be installing one or two motion detector lights to cover my backyard. I would like the ability to "override" the motion detector. What I mean by this is that I would like to be able to ...
5
votes
3answers
3k views

Does a grounding wire from a breaker panel to an outside grounding rod need to be in conduit?

I've got a breaker panel in my detached garage (it is not a sub-panel, but is a primary forked off just past the meter). The panel seems to be wired correctly- the neutral and ground bars are tied ...
8
votes
2answers
330 views

Is it within code to complete 12g wiring circuit with 10g wire?

In installing a dishwasher on a dedicated 20amp circuit on 12g wiring, I've come short about 5 feet to run a line. I have some surplus, heavier, 10g wire. Would it be safe to install a junction box ...
4
votes
3answers
2k views

What voltage/amperage garage circuits should I install for welding tools and an air compressor?

As a part of renovating my garage this fall, much of the wiring is being re-done. Since doing the work before putting up walls will be much easier now than adding circuits in the future, I'd like to ...
5
votes
2answers
3k views

How do I know if my lightswitch is wired incorrectly?

I recently replaced a couple of the really old lightswitches in my house. Shortly afterwards I heard Shirlock Homes on the StackExchange podcast and he mentioned that you can shock yourself if you ...
3
votes
1answer
2k views

Is my dimmer switch failing or is it bad wiring?

A few days ago my wife mentioned that there was a "burning smell" near the kitchen, but it went away before I could investigate. Today I turned on the dimmer switch in my kitchen, and the lights began ...
8
votes
3answers
502 views

What is a minimally intrusive way to move a wire that is in a wall 3.5" to the left?

I need to move a speaker that's mounted on a wall about 3.5" to the left. Here's what the actual mounted speaker looks like: The wire comes out inside the bracket that attaches to the wall, and ...
1
vote
0answers
237 views

Why does power loss leave my split/ductless AC unit inoperable for hours or days? [closed]

I've got an LG Ductless 12000 BTU unit that does the most annoying thing.. It is wired into a semi-standard (one of the prongs is sideways) 15A or 20A (can't recall) GFCI outlet inside - and if the ...
12
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 ...
3
votes
1answer
455 views

Why does my fluorescent light fixture ruin bulbs within six months?

My bathroom has a fixture for twin 48" fluorescent bulbs. About every six months, the bulbs start to go bad. At first they will only come on about half way, and they flicker dimly for a few seconds ...
2
votes
1answer
592 views

adding new power outlet, ceiling fan/switch kills the power to it when on

I'm adding a new power outlet for some electronics. I'm dropping a 12/2 wire from the attic where I'm attaching it to a junction box. The junction box has an existing wire, 12/2, and a 14/2 wire ...
6
votes
4answers
2k views

Buying a programmable thermostat to replace a manual one: any considerations?

I'm about to look for a programmable thermostat to replace a manual one. There are already a couple of good questions on thermostat replacement that make the task seem pretty straightforward for ...
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 ...
1
vote
1answer
1k views

Is earthing required for a submersible water pump?

I have a submersible water pump with a power cable that ends with a three-pronged plug with a protective neutral contact. Having a matching outlet is problematic - there are only unearthed outlets at ...
2
votes
2answers
157 views

How can I protect a hose and wire in a high-traffic area?

It's about 20' from my RV to the water supply and electric receptacle. This is a high-traffic area, and having foot (and car!) traffic on the hose and wire seem like a bad idea. Ideally, I'd run ...
5
votes
1answer
2k views

Is it within code to branch an exterior outlet off an interior outlet in the middle of a circuit?

My city adheres to the 2008 NEC. I've got a run of outlets around a basement room on one circuit. On an exterior wall I've got a weatherproof outlet that's on a different circuit and somewhere in ...
13
votes
4answers
49k 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
1answer
176 views

How to disconnect a weird looking wire

I'm renovating my Kitchen, and my stove is connected in such a way that I'm not sure how to unplug, I added pictures that might explain it better. I would like to either disconnect it, or make it ...
4
votes
1answer
3k views

How to chain two recessed lights together?

Disclaimer: I am one of the most non-handy people on the planet, so forgive my total "newbie" question. We are in the middle of a kitchen remodel. I need to install two housings for recessed lights ...
2
votes
4answers
1k views

Does anyone find any problems with this method of running speaker wire under the carpet?

I am putting new carpet down and want to run my rear 5.1 speaker wire under the carpet. I know that I will want to replace it once a year (I am weird like that), so I thought I'd get a few of these: ...
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 ...
1
vote
1answer
2k views

Electrical - How to power 12V LEDs from a 12V AC power supply

I have a 12V power supply that I am using to power some lights in my garden. I want to also power (in parallel) a set of 12V LED lights which (of course) require a 12V DC supply. Is there a simple ...
1
vote
1answer
197 views

Modulate Hi-Def signal from HD-DVR or HD-DTV receiver

I have coax running through my house that was installed before HDTV became the norm. Currently I have a non-HD satellite receiver in a central location in my house and am broadcasting the output from ...
4
votes
2answers
11k views

What should I use to wire a 220v electric baseboard heater and thermostat? 12/2 or 12/3

When I bought my baseboard heaters, thermostats and 220v breakers I was advised to get 12/3 wire. When I attempted to install the heaters I found that the thermostats, heaters, and even breakers have ...
3
votes
3answers
5k views

Can I tap into an exterior light in order to power a security camera?

I have an exterior light (shown below) that I was wondering if I could tap into, in order to power an outdoor IP cam. I understand I would have to pull appart some cables and potentially purchase ...
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 ...
6
votes
5answers
2k views

Should I have multiple cable runs for a room, or just one?

My girlfriend is finishing up her basement and has set up a good layout for electrical outlets throughout the rooms (family room, bedroom, and office), but she's only accounted for a single coaxial ...
1
vote
2answers
617 views

furnace creating a ground?

our gas furnace has a junction box on the side of it for the 110 feed for the blower, the feed has no ground wire , if i put a meter on the hot wire and metal box i get 110/120 , without a ground wire ...
3
votes
2answers
3k views

How do I add a receptacle from a switch located on the end run of an existing split receptacle?

I need to add a new receptacle to a room. The only convenient source of power for that receptacle in behind a light switch. The challenge is that the aforementioned switch is located on the end run of ...
2
votes
3answers
3k views

Why is my AFCI breaker tripping and my surge protector clicking?

I've really got two possibly related issues here. We have a basement office that we wired ourselves. Code required that we put in an AFCI breaker. From what I've read these can be pretty temperamental ...
5
votes
1answer
9k views

Is it ok to wire light switches and lights with 12/2 cable?

It sounds like light switches and lights are usually wired with 14/2 cable. Is it okay to use 12/2 cable instead? Would I need special switches?
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 ...
1
vote
2answers
2k views

In Canada (Ontario, specifically), is 'CL2' rated cable acceptable for in-wall installation?

I've got a bunch of cable to install in the wall for my basement reno and have an excellent source for various cable types (speaker, video, cat6, etc), but the cable 'only' has the US CL2 rating, and ...
8
votes
5answers
3k views

Why is there so much metal-clad wiring in my house?

My house was built in 1893. I was recently doing some electrical work in the attic, adding some light fixtures. While doing that, I noticed that several of the upstairs outlets were wired with old, ...
2
votes
4answers
4k views

What is the proper wiring for a NEMA 14-30 240v receptacle?

We moved into a resale home, the previous owners had a Gas Dryer, we have an Electric. The laundry room has a NEMA 14-30 receptacle installed. I hooked up our brand new dryer and it didn't get power. ...
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 ...
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 ...
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 ...
1
vote
4answers
3k views

How do I take a live wire off of a two way switch?

if I know how to take the live wire off then my job is easier.
3
votes
3answers
2k views

Borescope recommendations (features)

I'd love to get a borescope, but I've never used one. Should I try to find a place to rent one first(does such a place even exist?), or should I bite the bullet and buy one. What features should I ...