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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1answer
610 views

Can I use a T5 HO lamp in a non-HO luminaire?

Does anyone know what would happen? Does the ballast limit the power? If the T5 HO lamps were less expensive than T5 non-HO lamps, would it be ok to just use them in a non-HO luminaire?
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1answer
515 views

thermostat c wire question [duplicate]

I am looking to install a new thermostat that will require a C wire. I have a single stage A/C unit and my current thermostat has Rc, G, and Y wires. There is also an unused blue wire which I traced ...
8
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1answer
3k views

What wire and conduit is required for an attached-garage subpanel?

To make my garage more usable as a workshop, I'm planning to add a subpanel which can feed a number of additional outlets. 60 amps would be plenty for my current needs, but I'd like to go with 100 so ...
2
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1answer
3k views

What would be involved in moving electrical panel a few inches?

My reading on the Building Science Corporation's website has convinced me I ought to remove the shoddy fiberglass+vapor barrier that the contractors put in my basement and place XPS directly against ...
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2answers
10k views

Can I screw a ceiling fan electrical box directly to the joist?

I am putting in a ceiling fan in a bedroom. It is a smaller one approx. 18 lbs. The remodeling-type expander brace failed, so can I just screw one side of the box to the joist? (I cannot access the ...
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0answers
404 views

How do I connect up a ceiling rose in a 2-way switch circuit?

I removed a ceiling rose and forgot to at least take an image or draw the wiring before replacing it. It is part of a 2 way switch (the other switch is upstairs). However, the wiring colours are ...
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2answers
247 views

How can I have a light turn on when a pocket door is opened?

I'm building a new home with quite a few pocket doors and would like to know if there is a way for the pantry and utility room lights to come on when the pocket door slides open.
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2answers
448 views

How can one properly and tidily install this hardware for internet access?

This picture shows what my new home has for the wiring necessary for internet access. Some of the wiring here isn't necessary---in fact, most of it isn't, just the telephone wiring. With an idea of ...
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1answer
2k views

What are my options for running feeder cable into an exterior main panel?

I'm trying to connect a 4/3 nm feeder cable into to my exterior mounted service entry / main panel. There is already what looks like a 1 1/2" rigid conduit from the crawlspace through the rim joist ...
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1answer
118 views

What is this circuit board and how to I replace it?

I have two under counter lights in my kitchen which stopped working at the same time. I assumed some kind of fuse needed changing, and on opening the little box connecting them to the mains I found ...
6
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1answer
367 views

What is “workmanlike manner”?

I have to ask this because I have been doing a ton of electrical work in my house. Will get inspected soon. I am pretty neat - everything is stapled uniformly and ran at the same height- but I ...
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1answer
439 views

What are these clips on the wires in my junction box?

Are these clips just for protection? or are they connectors for something?
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1answer
3k views

How do I retrofit a junction box in an insulated wall?

Typical cold climate construction: Drywall, 6mil vapour barrier, fiberglass batt insulation. How do I retrofit a junction box and maintain the vapour seal? To be clear, by 'retrofit', I mean the ...
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1answer
4k views

How can I hang a custom lamp from the ceiling by its cord?

I have purchased a lamp shade, which I would like to hang from the ceiling on a cord of specific color (in this case orange). I have had a previous lamp, which included the cord, which I replaced and ...
2
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1answer
2k views

How do I rewire an old light fixture?

I have an old pendant light fixture with a ceramic bulb socket that needs new wiring (the old cloth covered wires are falling apart). There is a copper colored screw and a silver colored screw in the ...
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1answer
1k views

Can I have GFCI receptacles on the same circuit as normal receptacles? [duplicate]

I am looking at a few books and they all show samples of circuits, but never tell or show if you can mix receptacle types. I have a circuit running to 2 bedrooms for my power outlets. The are on 12/2 ...
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2answers
187 views

How Can I Install A “Main” in my Distribution Box, such that I could turn the main switch to allow all power to be off while I'm away?

My box doesn't have a main, but it has a slot for it (it says, punch out here for main). I'd like to know how I can put a main switch in, so that I can turn everything off at once while I'm away. ...
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2answers
437 views

Why is difficult to unplug things from this electrical receptacle?

The electrical receptacle in my bathroom is difficult to use. It seems hard to unplug hair dryers etc. Do I need to replace it or can I fix it?
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1answer
3k views

How can I trim around an electrical outlet?

I had the floor in a sunroom raised up to be level with the floor in the rest of the house. The electrical was already in place, and I didn't think to check how the new floor height would affect the ...
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2answers
1k views

Can I run a single 12 guage wire outside of 12-2 to provide power to a fan?

I have regular 12-2 wire going to a bathroom fan. Tell me about code issues with just running an extra 12 gauge shielded wire up to the fan so I can do the fan and light separate. Any restrictions, ...
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1answer
2k views

How do you wire a light fixture with only black and white wires?

How do you wire a light fixture if from a light fixture that was already there and I have a white wire with smaller wires inside to use to install. The 2 wires are black, and one white wire. Why isn't ...
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1answer
239 views

Can I draw power from nearby recessed lighting for pendant lights?

I want to add two pendant lights above my island where I have a bunch of recessed lighting. Can I draw power from them in order to power the chandeliers? I'm considering an Insteon solution in order ...
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1answer
1k views

Why does my ceiling fan pop and sizzle at one speed setting but works fine at another?

My ceiling fan that has been installed for 11 years will pop 1 time when I turn it on. Yesterday it popped when I turned it on then a few minutes later it started to make a sizzling noise followed by ...
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1answer
6k views

Can I control a bathroom extractor fan independently from the light?

My bathroom extractor timer fan works fine except that I have to have the lights on when it is in use. I have 2 windows in the bathroom and feel it is a waste of energy to have the lights on in order ...
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3answers
3k views

How can I repair these rusty electrical connections?

When I turn on my air conditioner at the thermostat the vents kick on but nothing outside. Also the last time that it worked it took a few minutes to get going and was pretty loud. I checked the ...
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2answers
6k views

Can I add an occupancy sensor to a 3-way circuit?

If I replace one switch in a 3-way circuit with an occupancy switch, would this cause the occupancy switch to work in reverse (or not at all) if the regular switch was toggled? If so, would the best ...
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1answer
8k views

How can I add a programmable timer to a circuit breaker so that I can force specific circuits on/off at specific times?

My father-in-law suffers from dementia. His doctor wants him to go to bed at 11 PM, but he often refuses and stays up way later than he should watching TV. We have him set up with a separate suite ...
2
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1answer
996 views

What should I expect when using electrical equipment rated for 100V/120V at 110V

I have a number of electrical home appliances that are designed for 100V, 50Hz 120V, 60Hz 230V, 50Hz I have a converter 100V <=> 220V-240V (according to the description). My power outlet has ...
2
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2answers
171 views

How much power can a house with 3 x 25amps electricity supply?

Please excuse the poorly phrased header - I am (hopefully not for long thanks to you) electrically dumb. I'm looking at moving to a house in the countryside to live a more DIY lifestyle. ...
3
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2answers
682 views

Why does the breaker keep tripping on a circuit with two rooms' lights and a sewer pump?

I have a circuit-breaker that is connected to lights in two rooms, and to a sewer pump in the basement. I had the sewer cleaned out and the pump inspected, and no problems were detected. I then had ...
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1answer
10k views

Why would my kitchen ceiling fixture not have any current?

Last weekend, my kitchen ceiling fixture stopped working. It's a fluorescent fixture, and since the house is about 20 years old, I figured that ballast had gone bad. I went to the nearest home ...
5
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4answers
12k views

Why does my circuit breaker trip with any small load, even after replacing the breaker?

I have a 20A 240V GFCI breaker in my main breaker box going to a conduit to another breaker box outside. All worked well last summer. Now, when I put any load (weed-eater, light, etc.) on an outlet ...
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3answers
3k views

Is there a tool designed for holding multiple electrical wires together to keep them in place for wire nut?

I am trying to wire three hot wires together with a pigtail which means I need to twist four 14-gage wires into a nut (I am using a tan nut which I believe is suitable for this). The problem I'm ...
4
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1answer
627 views

Is it OK to have a GFCI downstream of a standard circuit?

I would like to extend a standard electrical circuit to the outside with a GFCI outlet. Can I install a GFCI downstream? This would be easier than running a new circuit back to the breaker panel.
5
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1answer
4k views

Can I use a 20 amp and a 15 amp breaker on one 12-3 wire split into 2 circuits with a common ground

Running from my house panel to my garage I currently have a 12-3 wire split into two circuits with a common ground, each circuit has a 15 amp breaker. I know 12 gauge wire can support a 20 amp but my ...
5
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3answers
8k views

Why is my lighting circuit tripping the breaker?

I have several MR16 2 pin style light bulbs in my kitchen - The other day the trip switch for the light bulbs tripped when turning these bulbs on - I went and flipped the trip switch and tried again ...
4
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3answers
487 views

What material to use to close a too wide wire tunnel?

During the cold days I noticed a little draft coming from the light switch next to my house door. Removing the switch revealed that the tunnel for the cables was widened to fit the cables for the ...
8
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1answer
9k views

How can I mount an 12V transformer for LED lighting inside a wall?

The stairs to my basement has one light fixture at the bottom, and that casts a shadow on the rest of the stairs. I want to run a strip of LED lights up the crown molding or on top of the upstairs ...
2
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4answers
16k views

Why does the circuit breaker for my bedroom continue to trip without any visible event after a power loss?

The 20A breaker for my bedroom will trip whenever we have a power outage at my house. If you reset it, it will trip again after an interval, say 5~10 seconds. The longer you wait to reset it, the ...
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2answers
2k views

Which is the bare wire in a 12-3 gauge cable?

What purpose does the bare wire in a 12-3 gauge cable serve?
3
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1answer
10k views

Why did my surge suppressor make a “pop” sound when I plugged something in?

I bought a surge-protecting power bar yesterday. It's a seven-outlet model, made by American Power Conversion Corp.; I found it at the thrift store for $4 second-hand. It appeared to be in decent ...
3
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2answers
17k views

Does it matter if I mix neutrals and grounds in the main panel?

Code question here. I do a lot of electrical and like to follow code exactly. I have done pretty much everything but hook up lines to main box. Taking a stab at it this time. First I see that I ...
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0answers
209 views

Can I convert my front intermediate light (with only 1 wire) to a junction box with live, neutral and ground wires?

I want to change my entire front light housing because it is old and uses an intermediate-base light bulb. The new one I have purchased has black, white and copper wires. The old one only has a wire ...
2
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3answers
1k views

How do I remove a bolt that's stuck in a ceiling junction box?

I cannot get the bolt off the screw in a ceiling junction box. The junction box is damaged and I need to replace it to be able to put in a new one so I can rehang the ceiling fan. It's time for summer ...
2
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2answers
2k views

Do 240V receptacle use the same connectors as 120V receptacles for the same amperage?

I feel like I'm missing something obvious. I know different plug styles are used based on a circuit's amperage (in the US) but is the same style of plug used for both 110V and 220V outlets of the same ...
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1answer
20k views

Where do I attach the grounding conductor to my bedroom light fixture?

I have a problem, I broke the center piece that holds the glass part on my light fixture in my room. I purchased a replacement and removed the two screws holding my fixture on to the ceiling. Now I ...
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2answers
1k views

Why am I getting 20V from a light socket after changing the bulb?

I had a bulb burn out, and when I went to replace it, the new bulb didn't work. I put a multimeter on the socket to test it and I'm getting 20V instead of 120V. There are no other electrical problems ...
2
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1answer
23k views

How do I wire a 3 gang switch in my new bath?

I am putting a basement bath in and I need help. I will be adding a new 20 amp circuit for the single pole outlet. Also, a 20 amp line for a 3 switch box. Switch #1 is for the vanity light, #2 is for ...
2
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1answer
1k views

How can I electrically test an RJ45 plug?

I live in a dorm and there's a RJ45 connector on the wall, which is connected to a router somewhere in the building (which I do not have access to). Supposing I do not know the exact hardware ...
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 ...