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.

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23
votes
7answers
25k views

Would you ever wire white and ground together?

I was replacing some outlets in my house with tamper-resistant ones, and came across one where the white and ground were wired together, as seen in this picture. Why? Is that okay or appropriate ...
4
votes
2answers
2k views

Can my apartment's electricity harm my computer? Is there an easy way to test the electricity?

I live in a (rented, 1980 built) row townhouse in the USA with slightly suspect electricity: A few of the outlets and light switches in the house (in various rooms) don't work at all. (Even ...
5
votes
1answer
502 views

What should I do with a 3-way light switch that is no longer needed?

How do I get rid of a 3-way switch? I am rewiring some lights in an older home and found that one of the switches is a 3-way. However, the light it was originally for was removed years ago. So we ...
2
votes
1answer
326 views

Where can I find a Powerline Internet Adapter with DIN Rail Mounting?

There are several products in the market to create a home LAN using the existing electrical wiring at home. In all of them the point of entry(or the emitter) is a device that is connected to a wall ...
3
votes
1answer
590 views

How can I wire a panel heater?

Bought my Mum a Dimplex Panel Heater for Christmas. My plan was to plug it into the single socket beside where I am mounting it however it did not come with a plug and look like it should be wired ...
2
votes
2answers
302 views

What is the proper installation of a dimmer switch?

I have a wall light that has 18 gauge wire. I want to hard wire this lamp in and put it on a dimmer switch that calls for 14-2 or 12-2 wire. Can this be done? I tried to hook it up but it keeps ...
4
votes
1answer
1k views

How can I install r-max insulation on the interior side of a cinderblock wall?

I am planning on insulating the lower level of my house with R-Max in a method similar to this: I have a few question about it though: Can I use something other than Treated wood as this is ...
3
votes
2answers
1k views

What could be causing strange voltage readings?

My wife bought some new wall sconces for the house and asked me to install them. I'm not an electrician (obviously) but this seemed like something I could handle. So I switched them out, following ...
8
votes
1answer
633 views

Can I have multiple GFCIs on one circuit?

I have a 70s kitchen with a very long countertop. I understand that I only need one GFCI to protect the downstream outlets (for example near the sink). However, I decided instead to install 3 separate ...
1
vote
2answers
883 views

Why won't the heat shut off in one zone?

we have a three zone baseboard hotwater furnace. a few months ago one zone would randomly stay on, we did change the thermostat we have not noticed the problem again, but in another zone we have the ...
4
votes
1answer
4k views

How can I diagnose disturbing voltage potentials?

Earlier today, I read Acceptable ground to neutral voltage?, and thought it'd be fun to stick my multimeter in the socket and have a voltage to report back. Neutral to ground read 60 volts. My head ...
2
votes
2answers
1k views

How do I install GFCI on multi wire branch cicuit? [duplicate]

Possible Duplicate: How do I install a GFCI receptacle with two hot wires and common neutral? I am planning on changing the old large gauge/3 wire that fed my electric dryer into a multi ...
4
votes
5answers
4k views

How Do I Power A 220 Water Heater Off Two 110 Breakers

First off I know this is not the best idea. To start my 200 Amp Main has suffered a partial failure and as it is old (60s) and unusual it will be very hard or impossible to replace it. Since the main ...
0
votes
1answer
856 views

How can I add a light switch to an existing lighting circuit?

I have a Light switch that runs four lights, I would like to add a switch to the last light. Is this possible and how could this be wired?
1
vote
0answers
99 views

Which electrical switch do I require? [closed]

I am confused at what to purchase to replace a 3 light switch and one of the lights is 2 way. It gives me the option of 2G 2 way, 3G 2 way or 4G 2way. Which do I need to purchase?
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 ...
4
votes
2answers
5k views

Why does voltage still exists when a circuit is broken by a 3-way switch?

My parents got a ceiling light for my parents for Christmas, which I was tasked with installing. I don't know why I bothered to check the voltage before putting the new fixture on (and after taking ...
1
vote
1answer
120 views

Is there a remote switch I can use to replace a switch located in a wall being removed?

I am removing two walls that contain light switches for the dining, and kitchen ceiling lights. Is there a wireless switch I can use for control, without fishing wires into the existing walls?
8
votes
4answers
6k views

Acceptable ground to neutral voltage?

First of all I'm pretty sure I know the theory behind the effect. I know about the inductive and capacitive coupling, about 3-phase balance problems and about ground bounce, so this question isn't ...
2
votes
1answer
196 views

Should I Buy Cordless Drill/Driver From USA And Use It In My Country?

I want to purchase DeWalt 18V Cordless Drill/Driver from USA where electricity standard is 120V - 60Hz and use it in my country with transformer where standard is 220V-230V - 50Hz but there will be ...
3
votes
2answers
1k 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 ...
2
votes
1answer
859 views

several outlets dont work on same circuit

I tested my outlet and only had 85 volts on the black side and 24 volts on the white side why? There are several outlets on the same circuit that don't work with the same readings.I checked power in ...
3
votes
3answers
8k views

How can I troubleshoot a ceiling fan light kit Issue?

I have an issue with my ceiling fan light; the light is on, then eventually over time it starts flickering off and on, eventually over time shutting off. I'll switch the light off, and then switch it ...
3
votes
1answer
661 views

Is a water pressure booster pump with an induction motor suitable for kitchen tap use?

The water pressure in my kitchen is too low to achieve a reasonable flow rate through the kitchen tap. For many years I have fitted a series of booster pumps which are activated when water is flowing ...
4
votes
4answers
10k views

Can I using a 3-phase connection to power 1-phase AC unit?

I have preparation for an AC connection with 3-phase 220V 3X16A breaker. I want to install a 220V 1-phase unit, which also needs a 16A breaker. The physical connection has screw-on terminals, so there ...
4
votes
1answer
694 views

How do I connect a 240 to 110V transformers that measures 55V AC on both the “hot” and “return” wires?

For a European-style city power supply (240 V AC 50 Hz) attempting to accommodate appliances from another country (USA, 110 V AC 60 Hz), how should a "Nippon" ungrounded transformer be wired up? The ...
5
votes
3answers
36k 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 ...
5
votes
4answers
7k views

What could cause the ground wire on my baseboard heater to burn?

On the photo below, you can see that the ground wire as burned. Description of what i know: the wire is connected on a 240V line to my baseboard heater the wire seems to be a AWG 14/2 I don't know ...
1
vote
5answers
8k views

Is there any feasible way to work with live electrical wiring? [duplicate]

Possible Duplicate: How do I install an electrical outlet on a live circuit? I remember back in my college days, having a badly damaged outlet plug on a built-in dresser/vanity right above ...
8
votes
4answers
957 views

How can I automatically disconnect a coffee maker and space heater without tripping the building's 20A circuit breaker?

My small office has a 20A breaker and we have to run a space heater in the winter or else we freeze to death. Whenever someone turns on the coffee maker, the office circuit breaker trips and ...
6
votes
4answers
3k views

Can I run a ground wire of a single circuit to the panel outside the house?

This is a follow-up to this question. I am adding (outlets) on to a 2-wire 12AWG (no ground) circuit and I want the new outlets grounded. Can I run a ground wire to the panel along the outside of ...
14
votes
2answers
59k views

How do you plan capacity for electrical circuits?

I'm finishing a section of my basement, which currently only has one bulb for bare light. In planning the electrical arrangement of things, how do I estimate the load of light fixtures or electrical ...
5
votes
1answer
1k views

How to deal with abandoned wire?

There is a 240V/30A circuit in a room of my house that used to be a patio. I think it was used for a baseboard/electric heater system. It had a surface mounted outlet that I have removed, but now I ...
5
votes
2answers
1k views

Confused about two way wiring on stair case

I have two light bulbs controlled by three light switches. I replaced two of them a while ago (can't remember what the wiring looks like) with no problems. However, I encountered the following issue ...
20
votes
4answers
8k views

Is it OK to borrow a ground wire from a different circuit?

I've got a circuit in the basement carrying a handful of outlets. This circuit has no ground wire. I want to add a couple of outlets and want them to be grounded. I may even want gfci outlets on ...
7
votes
2answers
668 views

How do I upgrade a conventional switch to a dimmer?

I have a single pole light switch (I guess that means 1 switch controls the light?). The top switch turns the light on, the bottom switch turns the fan on. I bought a dimmer, that has a black screw, ...
7
votes
1answer
2k views

Why would a single electric receptacle stop working?

A single receptacle suddenly stopped providing electricity in my living room. It is not a GFCI. The other outlets work fine and the circuit breaker didn't trip. Any ideas?
2
votes
2answers
11k views

half of all home outlets not working

About a year ago we started noticing outlets in our upstairs bathrooms not working, and eventually none of the bathroom outlets worked at all. Hallway outlets, bedroom outlets still work fine. ...
6
votes
3answers
2k views

Environmental protection for computer equipment in unheated garage

I live in Minnesota, and I have an unheated, detached garage. I would like to place an "offsite" data backup device (possibly a NAS) in the garage, which I should be easily able to connect to the ...
5
votes
1answer
147 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 ...
7
votes
1answer
34k views

Light switch setup using only hot wire. Is it normal?

I was changing the light switches around the house when I came upon this setup. The two switches to the right are all wired using the hot wire (black) from the two electrical wire on the back panel. ...
2
votes
1answer
540 views

Alternatives to extension cord over the grass to light a Christmas tree

I have a nice little pine tree that sits about 30 feet from the corner of my house. Ideally, I think it would look nice to throw some Christmas lights on it and spread some holiday cheer. I hesitate ...
5
votes
3answers
4k views

Line tester reads power to 220V outlet when the breaker is off

Bought a house in May that came with a window air conditioner connected to a 220V outlet. The air conditioner is gone with no plan to replace so I want to remove the outlet. I went to the breaker, ...
1
vote
3answers
13k 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 ...
8
votes
2answers
1k views

How can I ground old 2-prong receptacles? (120V)

I have several old receptacles that are 2-prong. There is armored cable running from the breaker panel to each receptacle. What do I need to do in order to install and properly ground new 3-prong ...
1
vote
0answers
628 views

Does a homeowner need a permit for electrical work in indianapolis [closed]

i have a 100 amp breaker box i want to replace with a lager 100 amp breaker box do i need a permit in the city of Indianapolis?
3
votes
1answer
440 views

What do I need to do to safely reconnect an A/C-powered smoke detector?

In an unfortunate incident, the plastic plug for one of my A/C-powered smoke detectors became detached from the wires coming out of the ceiling. My ceiling now looks like so (click for full size): ...
2
votes
1answer
4k 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
1k 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
3answers
5k views

Troubleshooting of lamp which refuses to work after bulb change

The lamp on the ceiling of my living room consists of two bulbs. One of them recently got broke, so I removed it, checked it, and bought a similar one (60 W all of them). I fixed the new one, and now ...