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. Posting photographs of wiring junctions or drawing a wiring diagram and posting ...

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4
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2answers
2k views

How should I ground two switches in a handy box that were previously ungrounded?

I am replacing two light switches in my bathroom. One controls the light above the sink and the other controls the fan in the ceiling. When I took the old switches out, I saw that the three neutrals ...
3
votes
1answer
877 views

How do I string a low voltage wire between two buildings?

I need to get Cat6A to an outbuilding for network communication; underground is not an option. I think I have an idea on the method: grounded pillars with a guyline and the outdoor cable. What NEC ...
1
vote
2answers
320 views

Can CFL bulbs in a fixture with a dimmer switch damage old wiring?

Our wiring is not functioning now after using a CFL bulb in a dimmable light fixture. Is it possible that use of the CFL bulb could affect our old wiring? We may have to replace the wire leading to ...
2
votes
4answers
19k views

How can I stop this GFCI receptacle from tripping?

In my garage I have two wall receptacles on opposite sides of the garage. On one side the receptacle is a GFCI receptacle and the other side is a normal one. In the normal receptacle I have a small ...
0
votes
0answers
277 views

Why did my ceiling light fixture stop working after adding an outlet on the same circuit?

I recently added a receptacle for hanging my TV on the wall. To do it I fished a wire through the wall and attached wires to an existing receptacle that's at a lower level on the same wall. This is ...
1
vote
1answer
130 views

Plug HRV (Constructo 2.0 ES) into power bar?

Would there be any issues if I plugged this HRV into a power bar? I have this unit (says 200 watts of power) which is in the closet of the master bedroom and plugged directly into a wall socket. I ...
2
votes
3answers
1k views

How can I install a pendant light fixture on a cathedral ceiling with no attic space?

My house has an integrated ceiling/roof with exposed rafters... the ceiling/roof is sloped and surfaced with V-edged 2" redwood boards over 4x6 rafters 4' on center. I want to hang a pendant light ...
1
vote
0answers
584 views

Where can I connect the ground wire when replacing my oven heating element?

My old heating element finally burned out and had to be replaced. That element is not made anymore, but an appliance store gave me the part # for a replacement that works for that oven. I took out ...
10
votes
3answers
11k 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 ...
2
votes
4answers
5k views

How can I install an electrical panel when the stud cavity is too narrow?

I am installing a sub panel in my garage and ran into a problem. I have the usual 14" of space in the stud cavity but the problem is that the subpanel I bought is 14 1/4" wide. I'm wondering what ...
2
votes
1answer
542 views

Can I upgrade my garage to 20amp service without a headache?

I have an unfinished garage which I am looking to upgrade the service to. Currently it is 15amps running through some difficult to access sub-ground conduit, but if I run the band saw plus the ...
0
votes
1answer
178 views

How can I add a relay to the manual control for my HVAC unit?

I have a self standing HVAC unit that has a control panel with manual buttons. There is no thermostat. Eventually my goal is to create a relay that can be controlled via IR/RF so I can install a Nest ...
-1
votes
2answers
429 views

How can I add lighting in my bedrooms without too many visible wires?

I will be moving in to my new house in 2 months. My wife and I thought that we might not need ceiling lights, and that our builder charged too much for the lights anyway. We did not order any ceiling ...
3
votes
4answers
12k views

Why am I getting 50V at a light when the switch is off?

I am trying to put in a switch and a light it controls in a storage building and this is how I wired it. Click for larger view When I checked the wiring it registered 120V when the switch was on, ...
3
votes
1answer
229 views

How do I install a bathroom exhaust system?

We are set to close on our house in about three weeks and one of the problems that the inspector noted was that the vent in the guest bath vents into the attic (never going outside) and the master ...
3
votes
2answers
1k views

Why is my electric water heater making an intermittent groaning noise?

My 8 year old electric water heater started to make a strange rattling noise a couple of weeks ago. The noise happens at random and lasts for only a few minutes. Short bursts of noise about a minute ...
-1
votes
1answer
3k views

What wires do I need to run to my wall mounted tv?

I'm in the planning stages of a home theater setup. What do I need to run to the tv so I can hook up various components? I planned on running power, HDMI cables, RCA cables, coax, and an ethernet ...
2
votes
2answers
226 views

Do z-wave products suffer any limitations in the UK because of radio limits?

I'm looking into home automation and I think I'm settling on z-wave as my choice. however, I was slightly worried by this comment on wikipedia; In Europe, the 868 MHz band has a 1% duty cycle ...
5
votes
5answers
25k views

Can I cover junction boxes in the attic with insulation?

This may be a duplicate of What are the codes for electrical wiring in attics? I have an attic which is accessible via a ladder through an access panel in the garage and in a bedroom. The trusses ...
1
vote
2answers
2k views

How does one typically do “Old Work” with metal junction boxes?

I am trying to add a light fixture to a room. I have access to the studs in the wall (new wall being added to the room), but the ceiling is drywalled. There is no attic access. Unfortunately, the ...
2
votes
2answers
18k views

Why do the lights on my newly installed ceiling fan flick on and then off immediately?

We just installed our new ceiling fan with lights. The fan works fine but the light will flick on and then off again immediately. We took it back down and reinstalled it, ensuring that all wires were ...
2
votes
4answers
132 views

What's a simple solution to have 2 NEMA 14-30 receptacles and switch power between them?

Currently I have a NEMA 14-30 receptacle for the dryer. I'm wondering is it possible to split one receptacle into 2 NEMA 14-30 receptacles and install a switch to select which receptacle to use when ...
1
vote
1answer
1k views

Why isn't my thermostat clicking on/off automatically?

My thermostat is not clicking on/off automatically, I have called my landlord and they replaced a very old one with a brand new one and it is still not clicking on off automatically, but will manually....
2
votes
1answer
923 views

Why am I only getting 92V at receptacles?

There are about 5 or 6 receptacles in 2 rooms that all stopped working at once. We were getting a reading of about 92V and it's a 120V circuit. We changed out the receptacles but still the same ...
1
vote
2answers
125 views

Is it practical to install a second water heater near my kitchen?

My bathroom and my kitchen are very far apart in my house. The original water heater is in the bathroom. Is it practical to install a second water heater (small) near the kitchen so that it runs (the ...
1
vote
1answer
1k views

How can I wire this dimmer switch?

I'm trying to put a light and a dimmer switch together for use in a chicken brooder. I have the switch and porcelain light socket but am a bit confused on the wiring diagram. My diagram looks exactly ...
-5
votes
1answer
908 views

How can I immerse a light bulb in water? [closed]

I have a transparent wine glass which I want to be filled with colored water and then place a light bulb immersed in the water so that when I switch on the bulb the wine glass emits the color of the ...
4
votes
2answers
968 views

Is there any NEC code requirement for how far off the floor Category 5 wiring must be run?

I am currently running conduit for Cat5e cable in the home office I am finishing off. Are there any rules in the code for how far off the floor Category 5 wires in conduit must be run?
9
votes
3answers
10k views

Can I use a UPS as a Voltage Stabilizer?

I need a voltage stabilizer for my refrigerator. Can I use a UPS for this? I own an APC Back-UPS marked "Output: 230V~, 2.6A, 50/60Hz...". The label on the fridge says "220V/50Hz". Can I use this UPS ...
6
votes
1answer
317 views

What would happen if I went over the wattage limit specified by my path lights?

I have a set of path lights that specify 5 watt maximum for replacement. What happens if I put a higher wattage bulb in there? Can it burn my system up or cause a fire?
0
votes
1answer
584 views

Why isn't my thermostat working?

I have an old Lennox (gas heat only) thermostat. There are 3 wires coming from the wall. Black, yellow and a light blue color (could be a faded green or an old dirty white). The thermostat wouldn't ...
7
votes
2answers
574 views

Do I need junction boxes where conduit containing data cables terminates?

I'm going to be running 1" blue PVC conduit from all my low voltage boxes to a structured wiring panel. My wiring panel will chase to the attic where necessary and I was wondering what the best ...
2
votes
2answers
7k views

Can I extend the ground/bus bar in a main service to accomodate subpanel equipment ground?

I am about to replace the main service breaker panel in my house. The old panel (a 200amp Siemens 40-circuit) had bus bars that extended the entire vertical length of the box. The new panel I would ...
0
votes
1answer
1k views

How can I add two bathroom receptacles behind and above a vanity?

Background I'm in the middle of a bathroom remodel, and had to take off some drywall to get the tub in, then thought I may as well take all the drywall on that side off to give me an easier taping ...
-1
votes
1answer
164 views

Can I get a completely flush plaster-in switch or socket?

I've seen recessed downlights that fit in/on the ceiling prior to plastering, then after the ceiling is plastered the light has no visible bezel, just a recess in which the light sits. Search google ...
1
vote
3answers
2k views

What lamps available in the UK are compatible with BS 546 plugs?

We have lots of spare BS546 plug sockets in our rented house (we are located it London, UK). In the bedroom, these are linked to the lighting circuit but we only have one lamp so the room is very dark....
2
votes
2answers
1k views

There's a bunch of unshielded copper wire in a light switch - what is it and what does it do?

I was just replacing a faceplate, and noticed that there was a large amount of unshielded copper wire twisted together in the back of the light switch electrical box. The light switch box is a larger ...
2
votes
2answers
187 views

Should I replace an existing gas fireplace with electric?

Does it make sense to replace my existing gas fireplace with a newer electrical one? Would the new electrical one require less maintenance? Would it run more efficiently and in doing so cost less to ...
2
votes
2answers
34k views

What is code for installing a dishwasher in the U.S.?

I will be replacing my dishwasher and I am curious what is the current code for the wiring of the dishwasher.
6
votes
2answers
786 views

Does lamp maximum wattage matter for CF bulbs? [duplicate]

Say I have a table lamp that states (via a slightly scary sticker) that it takes a 60W max bulb. Of course, that was based around incandescent wattages. Is there any risk with putting in a CF bulb ...
5
votes
1answer
527 views

Can I obtain grounding from a different outlet?

I have a room with 2 ungrounded (2-prong) outlets and 1 switched grounded (3-prong) outlet. This has not been a serious inconvenience so far, as most of the equipment I wish to connect has ungrounded ...
5
votes
3answers
39k views

Is it code-legal to have a circuit breaker box within a storage room?

I am currently in the process of planning a room remodel to convert an existing bedroom into a home office and storage room. One thing that makes this conversion a little bit tricky, is the existence ...
-1
votes
2answers
370 views

how can I dim two sets of lights and run a fan by replacing my 3 manual switch [closed]

Can I get a switch that incorporates 2 dimmers and a manual switch to control a kitchen fan?
2
votes
2answers
5k views

How do I connect the wires inside a conduit junction box?

I have some wiring in my garage (done by a sparky believe it or not...) where the wire is quite loose, just tacked to the wall with clips, and there are a few junction boxes as well as the usual ...
1
vote
3answers
297 views

How can I rewire this circuit?

In my basement, I am removing an existing fixture and planning on installing pot-lights. Previously when I have switched out a fixture, I generally find white + black + ground, which is pretty easy ...
0
votes
1answer
6k views

How do I wire this GFCI receptacle/switch combination device?

I am trying to replace a switch/receptacle combo in our bath room with a GFCI switch/receptacle combo. I am no electrician but understand wiring for the most part however this one has got me stumped. ...
6
votes
3answers
15k views

Are non-GFCI outlets that are downstream of a GFCI outlet ground fault protected if they are fed from the GFCI outlet's load side?

Are non-GFCI outlets that are downstream of a GFCI outlet ground fault protected if they are fed from the GFCI outlet's load side? If those non-GFCI downstream outlets were not fed from the GFCI ...
1
vote
4answers
12k views

How do I wire a GFCI combination light switch when power enters at the light?

I have a Leviton 7299-NW GFCI/switch combo The diagrams in a response to the question "How do I wire a GFCI/switch combo?" is helpful. But I want to see a diagram for a situation where the power ...
1
vote
1answer
1k views

How to trace mystery switches

Since I moved into my house last year there are a couple of wall switches that remain a mystery to me. I don't know what they do, if anything. What are my options for tracing these switches? I'm ...
0
votes
1answer
506 views

How can I get my thermostat C wire connected? [duplicate]

I have an older furnace, on the switch block I have Y,C.W,R and an unlabeled screw that connects to the shut off it looks like. I need to hook up a thermostat that needs the C wire. I have a spare ...