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

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8
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3answers
2k views

What happens if I shave a little sliver off electrical wire with a utility knife?

I needed to replace an electrical wire with a longer one so I could move an electrical outlet. When I went to cut away the outer rubber cover of one of the wires with a utility knife (yes, dumb, I ...
4
votes
2answers
598 views

How can I add a second light to a circuit?

I have recessed lights that are controlled by two switches. They used a black, red and white wire for each switch to a junction box then used a 14-2 wire to the recessed lights. My question is how do ...
4
votes
3answers
5k views

Splitting a circuit breaker into multiple lines

I recently found out that several rooms in my house are apparently connected to one circuit breaker. Setup: My wife was in the bathroom drying her hair and I decided it was time to nuke lunch in the ...
11
votes
3answers
5k views

Ethernet cable instead of Thermostat wire?

I need to pull new wire from my furnace to my thermostat and was wondering if there would be any problems in using an Ethernet cable instead of standard thermostat wiring. The reason being is I have ...
10
votes
5answers
47k 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. ...
4
votes
1answer
196 views

What's wrong with an electrical outlet that will power a lamp but not a space heater?

Thought my space heater had died when I plugged it in and it wouldn't turn on, not even the "on" indicator light, so I went out and bought a new one. When the new one wouldn't work either, I tested ...
4
votes
1answer
1k views

How do I wire a switch/receptacle combination?

Here's my current situation. I've got 14/2 to the ceiling. The hot wire has a runner, which runs down to the switch, and the other wire is a switched hot, back to the light. The other side of the ...
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 ...
3
votes
2answers
904 views

How to wire a lamp to a junction box?

In my bathroom, I had an old wall lamp hanging above the mirror, that was connected to a junction box. I dismounted the old lamp and didn't pay attention to which wires it was connected. Now I need to ...
5
votes
3answers
23k views

How to properly wire a ceiling light fixture?

I rent an apartment and a tenant installed ceiling fan that was not well secured to the ceiling. I removed the fan and attempted to re-install the original light fixture after he moved out. I am ...
4
votes
4answers
2k views

How can I upgrade a 3 wire appliance receptacle to a 4 wire receptacle?

I have a cabin, wired for 220 and even has a sub-breaker near the outlet. There are 3 wires to the connector (two hots and the neutral). The range-top that I want to hook up is a 4-wire model (2 ...
5
votes
1answer
140 views

Can I use a hot wire on another panel?

I have a room upstairs that's the size of a small studio apartment. My daughter decided to move back home but my tenant noticed that the room she moved into is tied into their apartment. I went to the ...
1
vote
3answers
7k views

What did I do wrong??! Wiring error is tripping circuit breaker

Here's the scoop: There are 3 switches in my hallway. One switch on side A and two switches on side B. Side A switch controls same light as one switch on Side B. I replaced the switch on Side A ...
2
votes
1answer
3k views

Potterton EP3000 -> Horstmann C27 boiler programmer wiring

I'm in the UK, using an ancient tempermental Potterton EP3000 boiler programmer, but I have a brand new Horstmann C27 which I'd like to replace it with. Apart from the mains supply, there are three ...
3
votes
1answer
750 views

Should the tester start flickering when I touch my chandelier's top wiring cover?

(First time quiestion here, so correct me if something's wrong) I recently installed a lamp on the ceiling (a metallic chandelier). Two wires connected to the ceiling (one phase and one "zero"). The ...
3
votes
1answer
916 views

What are the “rules” for connecting different kinds mains electrical wires?

Aluminum wires can't be connected directly to copper wires - otherwise the contact spot overheats badly, such connections should only go through steel connectors. I was rather surprised when I found ...
3
votes
1answer
851 views

Should a generator transfer switch have continuity between all contacts in the “Gen” position?

I am finishing up installing my generator transfer switch today and I think I have a wiring problem... I have a six circuit transfer switch wired in with a power inlet box outside. Everything is ...
0
votes
1answer
306 views

How do I clean an oxidized steel terminal before attaching a wire to it?

I have to replace wiring in a power meter box in an apartment building. There're four really beefy wires running vertically through the whole building and each wire has a short stripped segment inside ...
5
votes
3answers
2k views

What's the procedure for stripping wires with pliers?

In this answer to this question on stripping wires pliers are mentioned as a tool suitable for that job. I guess it can be done, but I feel quite paranoid about damaging the conductor which is made of ...
3
votes
1answer
488 views

How reliable are connector strips with plug-in terminals and how do I select and use them properly?

Here's a close-up photo of a connector strip with plug-in terminals It's used for connecting 220 volt mains wires – you can see a bare metal wire coming in – that's 4mm2 aluminum wire. Each of the ...
3
votes
1answer
10k views

How can I add a single pole switch next to a 3-way switch?

I currently have a 3-way circuit in the family room. I would like to install a 2 gang box @ one of the switch locations and add a single pole switch to control an exterior light. Can I wire the single ...
12
votes
4answers
986 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
5k 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
658 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
2k 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
2k 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
276 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
946 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
49k 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
30k 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
333 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
4k 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
545 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
246 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 ...
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 ...
3
votes
1answer
477 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
635 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
169 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
58k 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
178 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 ...