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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17
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4answers
47k views

Can Romex (NM-B) be run through conduit?

A few days ago I asked an electrician if I could run Romex through conduit - he gave me a funny look and said "No, Romex is not allowed in conduit." When I searched online, there seems to be a wide ...
4
votes
3answers
7k views

Why did my circuit blow after replacing a switch?

I replaced an older switch yesterday on an existing line of recessed lights. There are five lights on the one switch. On the same breaker; but different switch, there are 7 more recessed lights (all ...
1
vote
0answers
122 views

Can I attach a metal box for a vanity light to a wood cross?

I am redoing a new bathroom. I have a metal electrical box that I want to replace (because it is an odd size from the 50s). The current one is simply screwed to a wood cross (2x4) running ...
6
votes
1answer
3k views

How do I connect the wires to this USB receptacle?

I am replacing a wall outlet with a Cooper Wiring USB outlet (TR7745). The new outlet has 3 wires coming out of it--a black, a white, and a green. Each one needs to be attached with a wire nut to ...
3
votes
2answers
23k views

How do I wire this ceiling fan?

I'm trying to wire a new ceiling fan. The outlet box wires are White, Red, and Black. The ceiling fan wires are Black, Blue, White, and Green. The installation manual states to connect both ...
5
votes
2answers
3k views

Are the wires for my generator transfer switch undersized?

I purchased a Reliance Q510-C transfer switch to use with a 50 amp generator at my house. The transfer switch is rated at 50 amps. I have wired it into my main electrical box. I also wired a 50-amp ...
4
votes
4answers
54k views

Why did I lose power to half the house when the breakers did not trip?

Using a voltage detector I determined that three breakers in the panel are not conducting voltage, yet they are fully on (not tripped). Thinking they were bad, I replaced a double throw 15 amp and a ...
5
votes
3answers
36k views

Why did I feel an electric current when touching my light switch?

While reaching behind a desk in my office, I leaned against the wall and felt a pinch on my shoulder. I realized I was leaning on the lower screw of the light switch and thought it had a metal burr or ...
2
votes
0answers
511 views

Why would my microwave continually rotate when connected to a voltage stabilizer which is also used for a refrigerator?

When I connected my microwave oven to a voltage stabilizer which is being used for refrigerator,the microwave oven motor starts working without any functions provided.The motor keeps on rotating at ...
2
votes
1answer
82 views

What kind of timer can I use to maintain 7 day timing on an old setup?

I inherited maintenance of an old building. To control the main lighting, it has momentary rocker switches and bank of relays that are wired to the actual light fixtures. So: - Controls (switches) ...
10
votes
5answers
31k views

What types of electrical outlets are found in a typical home in the USA?

I do not live in the USA. If I were to buy a home in the USA, what are the key facts I should know about USA household electrical supply at outlets in homes? E.g. when buying a clothes dryer or other ...
6
votes
2answers
901 views

Why do my appliances show two sets of power consumption ratings and which one applies to my house?

Aptos, CA, USA I'm trying to determine how much power my electric oven is using (as part of a larger project to possibly upgrade our electrical service (with help from a licensed electrician of ...
0
votes
1answer
48 views

Duration of charge held by High Voltage Components

How long can a High Voltage Capacitor in a Electric Oven hold a charge after the oven has been unplugged?
1
vote
1answer
9k views

Central air conditioner electrical disconnect amperage

My HVAC guy is telling me I need a 25 amp breaker and a 25 amp disconnect for my soon-to-be-installed central air compressor. I've asked him for more details but he's less than forthcoming. My ...
4
votes
3answers
2k views

How should I label and organize my home electrical circuits?

I am looking to make the wiring updates in my home extremely simple to understand while doing so in a code-approved manner. I cannot find anything against wrapping a thin band of colored electrical ...
2
votes
1answer
700 views

Why won't my pool pump breaker reset?

After extreme rain for a week my pool breaker has flipped off twice and now won't reset. Should I wait for the ground to dry or contact an electrician?
8
votes
2answers
97k views

What do I do with the unused wire for ceiling fan installation?

I recently replaced my bedroom ceiling fan with a newer ceiling fan and with the old fan I could: Use one switch on the wall to turn on/off the light Use the other switch on the wall to turn on/off ...
1
vote
0answers
467 views

Washer tripping gfi outlet

I've been living in my house for almost two years and my washer and dryer have been working fine. I have a maytag Neptune washer and dryer, just the other day I took a packet of tide washing machine ...
1
vote
1answer
4k views

How do I wire my light fixture?

my fixture has a black and white wire. ceiling has 2 blacks(twisted together), 2 whites (twisted together) and 1 red. There are 2 fixtures in the room with 2 wall switches. Only one wall switch has a ...
3
votes
2answers
896 views

Will a GFCI device work on circuit where the neutral is switched?

How well will a GFCI circuit be able to detect current flows, if both the "hot" input and the (supposedly) "neutral" input to a GFCI outlet are energized? The reason I am interested in this is that I ...
0
votes
2answers
12k views

Where in the breaker box should I terminate the neutral wire from my dryer circuit?

I am looking for an answer to something I am lost about, hopefully I can fins some help. I recently moved into a new home. The previous owners had a gas dryer and no outlets for an electric dryer. I ...
1
vote
1answer
477 views

Could this corrosion be caused by faulty ground wiring?

What might cause slight corrosion atop a tankless water heater's copper topped element assembly? I checked all the grounding and reconnected the two element assembly grounding wires and ensured ...
3
votes
3answers
5k views

How do I secure electrical wiring to a pocket door frame?

I recently installed 2 pocket door kits together from one room to an adjacent in my house. The building inspector said he saw no problem with me installing a light switch in a shallow electrical box ...
3
votes
1answer
734 views

What should I do with exposed wires from a yard irrigation manifold?

We just had a new backyard put in by a contractor with 20+ years of experience. Overall, he did a very nice job, but apparently the Rain Bird timer that came with our house is a new model and it gave ...
6
votes
2answers
6k views

Should we be rewiring or pigtailing the aluminum wiring in our condo?

We have purchased a condo home that was built in 1975. The inspector brought up the hazards of aluminum wiring. Since we have very little knowledge regarding this area we were wondering if we should ...
2
votes
2answers
2k views

NEC Definition of “Maintained Spacing” for Wire in Free Air

This seems like a simple question, but I cannot seem to find the answer in the 2008 NEC. There are references to "maintaining spacing" in many sections of the code such as the following: 310.15.B....
1
vote
1answer
2k views

Multiple Loose-Hanging Wires in Finished Wall

I am re-doing the wiring in my home and I have encountered a situation where I need to run 4 sets of 12-2 NM-B (Romex) wire from my attic down to the same fixture. Per 334.30, I am allowed to leave ...
1
vote
0answers
30 views

Wiring assistance for dryer from 4 prong to 3 prong [duplicate]

Just moved into a new apartment so I had to change my dryer plug. However, after countless tutorials and videos I am a little confused with the current set-up. Is it right that the green(ground) and ...
0
votes
0answers
66 views

How do I wire a combo with two supplies?

I want to replace a double outlet with an outlet/switch combo. I want the outlet to remain hot and the switch to power a disposal. By one response it seems I was wrong about two supplies. I have, ...
5
votes
3answers
543 views

How can I seal this hanging electrical outlet in my horse barn?

I really am not a fixer type of gal but this seems like it should be simple enough. Please respond appropriately for someone who has limited knowledge. I have a hanging outlet in my horse barn. ...
1
vote
1answer
5k views

Why do I have low voltage and backfeeding between circuits throughout my whole house?

If I plug a hairdryer or anything else into a outlet, I lose voltage in the whole house. If I plug the iron in, the stove surges. This is a nightmare. I can't run the fridge; I can't even get the TV ...
4
votes
3answers
105k views

Where does the ground wire go in a 3-prong dryer cord configuration?

We moved to a new place where the dryer connection is 3-prong instead of 4-prong. The dryer was originally 4-prong, so we bought a 3-prong cord and installed it. It works fine, except I am not ...
2
votes
1answer
1k views

Ground Wire Installation

Currently I do not have ground in my house wiring. I am planing to install ground wiring but the floor around the main service panel is cemented and I don't think I can place a ground rod in the floor....
3
votes
1answer
531 views

Can a Knob & Tube live hot wire be left disconnected without the neutral in a switch box?

Can a live (capped) knob & tube hot wire be left disconnected, without the neutral (it's removed) in a new switch box now fed by a modern 20amp circuit and romex? The reason it is still live is ...
3
votes
5answers
18k views

What can cause the capacitor in an air conditioner to fail?

I just had the capacitor on my air conditioner fail. It was explained to me that the reason for this was the oil inside the capacitor got too hot, expanded, made the whole thing bulge, and no more ...
1
vote
0answers
257 views

Ever had LED bulbs cause AFCI tripping?

I replaced a 50W halogen gu10 bulb in a ceiling fixture on an AFCI-protected circuit with a 5W dimmable LED bulb, and it trips the breaker after a few seconds (even after reseating the bulb). Another ...
8
votes
1answer
2k views

Can I use Romex in an unfinished basement or attic?

I am asking in reference to articles 382.2 & 382.12 in the 2008 edition of NFPA-70. The following definition appears to me to be describing Romex (NM-type) cabling: **382.2 Definitions** **...
0
votes
0answers
88 views

What damage may a bad condensor on a well-pump do?

Yet another follow-up to How does one determine whether a waterlogged High HP pump is electrically OK to use? The pump is out now. The screws on the housing being jammed/rusted tight, I've applied ...
4
votes
4answers
32k views

Can I use indoor Romex in buried outdoor conduit?

Or should I use outdoor Romex? I heard that outdoor Romex doesn't need conduit as you are just supposed to bury it. Edit: Ack, I should have mentioned I have existing conduit that I want to pull the ...
1
vote
1answer
2k views

How can I hang a ceiling fan with a 3/4 inch difference between the junction box and bracket?

I've taken down an old ceiling fan for replacement and found the octagonal junction box to be approx 3/4in above the ceiling, it isn't flush with the drywall which the new ceiling fan bracket mount ...
0
votes
0answers
579 views

Can this wire support a 60 amp sub-panel? [closed]

An insulated single wire cable (with about 10 bundled copper wires) that is marked 900V and is about 60 feet long will carry how many Amps? I have a sub-panel in my garage that feeds from a 60 amp ...
2
votes
2answers
9k views

Will it harm 12VDC LED light strips if I supply them with 12VAC instead?

I have strips of 12 volt DC LED's that can be cut into groups of three that I am using to light buildings on a model railroad and am happy with the results. I can vary the voltage from about 6 to 12 ...
1
vote
1answer
7k views

Can dimmable (triac) LED bulbs be used on a motion sensor switch without neutral wire?

I bought a bunch of these motion sensor switches. I also want to use these dimmable LED bulbs. The motion sensors do not have a neutral wire connector. My outlets only have a live wire and it would ...
2
votes
1answer
15k views

Electrical outlet has two black hot wires but one neutral white wire?

I attempted to replace an electrical outlet that was not working. My voltage tester indicated nothing was working. A receptacle analyzer indicated nothing was working as well. but when opening it up,...
2
votes
5answers
12k views

Is it possible to use a power inverter to run a sump pump?

If the power should go off, I want my sump pump switched to a power inverter combination. Is this possible?
1
vote
2answers
788 views

Ceiling Light with no switch to turn off

We bought an older home there was an old ceiling fan in the kitchen with a pull string.So we changed it and put a new light fixture in .It works fine except we can't turn it off.The switch in the ...
1
vote
0answers
370 views

How to finish the wiring of a shared GFCI receptacle

My neighbor who is an electrician helped me start an electrical project in my garage but has been MIA for 3 weeks and I'm not sure how to finish the wiring of the receptacles. He didn't seem to start ...
1
vote
1answer
528 views

conversion from fluorescent to halogen lights

I am try to take a connection that was originally used for a fluorescent light with a black wire and a white wire and use the same two wires with a halogen light that has a white wire, a black wire, ...
2
votes
1answer
165 views

How do I apply BNC connectors without breaking them?

I have some RG-59 coax cable and I want to terminate it with BNC compression connectors. I bought some compression connectors, and what I think is a pretty good quality compression tool — the Liberty ...
0
votes
2answers
188 views

Electric ground from another circuit

I have a circuit that has a couple outlets and they used 2 wire no grounds. Can I replaced the wire with 3 wire for the outlets and add new 3 prong outlets. It is a long difficut way back to my panel ...