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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358 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 ...
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1answer
1k views

Fix intermittent connection problem in a monorail low voltage light fixture

I have a WAC low-voltage monorail (probably a SOLORAIL model) that is about 7 years old. The rail is about 12 ft long and has four fixtures attached. For the past 2 years, one of the fixtures has ...
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2answers
183 views

Can I add receptacles on the same circuit as the garage door opener in my garage?

I am wanting to add two new outlets on a unfinished wall in my garage. This wall currently has no outlets at all and is a exterior facing wall. I was wondering if i can tie into the outlet in the ...
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2answers
94 views

How do I find the proper wires for service drop?

I have 125 amp service, and bought two #1 AWG black-colored wires for the electrician to use in his replacement. I couldn't find a white wire that size, or bare copper. Neither at Lowes nor Home ...
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1answer
347 views

How do I install a fan when the electrical box has 2 white and 2 black and 2 ground wires?

I am trying to install a ceiling fan with remote and the problem I am having is that there are 2 black, 2 white and 2 copper(ground) wires. The first thing I did was to connect the red wire from the ...
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1answer
188 views

Integrating into knob-and-tube wiring: okay to borrow a ground [duplicate]

I have a mixture of knob-and-tube and NM-B. If I'm extending from knob and tube, but I have a (different) an NM-B circuit nearby, is it technically allowable to ground via ground wire in the other ...
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1answer
2k views

How do I wire a light fixture with two white wires to a ceiling box with three white wires?

I am trying to install a new light fixture. The ceiling mount has three white wires and one black one. The problem is that the fixture has two white wires and one black wire. They do not match up. ...
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2answers
15k views

Why does my ceiling fan light turn off by itself?

I have a remote-controlled ceiling fan and light. I don't run the fan, but when I turn the light on sometimes it will stay on for a long time then just go off by itself. I have tried both kinds of ...
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3answers
185 views

Is it safe to ground a portable generator using the house ground at the service panel?

I've bought a portable generator that I'll use when the power goes out. The instructions in the paperwork state that the generator needs to be grounded before use. Can I use the house ground at the ...
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2answers
234 views

Does UF wire allow direct burial or require conduit?

I'm working with 6-3 UF-B wire in a wet location (under a deck). Does this wire need to be in conduit or buried? In other words, can the wire be exposed to the elements as is under the deck? If there ...
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2answers
87 views

Connect open neutral in box?

I am adding an outdoor floodlight and when I opened the motion sensor box for the existing lights, I found the neutral wire feeding the light was not connected in the box. I think this neutral should ...
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1answer
757 views

Why is my kitchen ceiling light not turning on with the light switch?

My kitchen light is not turning on with light switch, I checked it with a two wire light gadget and when I stick them in a electrical plug socket I get a bright light on the gadget, when I touch the ...
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3answers
555 views

How to install 230V Light with Light-activated-resistor?

I am trying to set up light-activated-resistors that activate a light during dark hours. I have bought a ready Chinese thing that apparently contain a driver to change from AC to proper DC output for ...
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2answers
958 views

Three hot wires,1 neutral on a switch

I am trying to replace an outlet, but am having trouble figuring out how to wire it properly. The top receptacle on the outlet is supposed to be connected to a switch. When the switch is turned on the ...
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2answers
1k views

Why are my dimmer switches malfunctioning?

I have two dimmer switches that have started malfunctioning. They are in the same box with two other standard switches. Each controls a set of three small flood lights. There is no other way to ...
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2answers
10k views

How can I figure out why my light won't turn on?

My home electrical system is single phase, two wire (live + neutral; grounding is short-circuited to the neutral). I have no schematics as to how it is connected. However, there is a separate circuit ...
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2answers
11k views

Why isn't my GFCI receptacle working?

I am installing a GFCI outlet and I am having some issues. I have identified the hot and neutral wires. They test positive with the voltmeter when I turn on the switch. I connect the receptacle to ...
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2answers
82 views

GFCI and “normal” outlets

When the GFCI outlets lose power, some of my "normal" outlets go out also. When I reset the GFCIs, these "normal" outlets return to power also. Are these "normal" outlets considered grounded?
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4answers
391 views

Can an electrical junction box be closed and covered if not needed?

Can an octagon fixture box that was also found to be a junction box, be closed and covered over in the ceiling after remodeling. Box not needed.
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2answers
73 views

Can I rewire my ceiling fan to make it move faster?

I installed a fan outside and it has no light, just a fan. It does have remote though. I capped off the red wire and used white, black and green. The fan at its highest setting does not move very fast ...
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3answers
143 views

Is this outlet wired for 240 volts?

I wired an outside outlet plug on my back porch and ran it off my breaker box, used a 20 amp breaker, used 14/2 wire, hooked the white and black wires to the outlet plug and cut the ground wire off ...
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1answer
150 views

100 amp box with two 100 amp breakers

My electrical box is 100 amp. The box has two 100 amp breakers already. Can I install a subpanel in my garage with another 100 amp breaker? That means that the box will have 3 100 amp breakers ...
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2answers
2k views

What happens if you wire a four-prong dryer cord backwards?

What happens if you get the red and black wires of a four prong dryer cord backwards? This question assumes: we are talking about U.S. Residential wiring the person doing the wiring gets the green ...
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2answers
398 views

Do separate pieces of EMT conduit qualify as “pull points”?

Question: Do two separate pieces of EMT conduit joined by a connector qualify as a "pull point"? Background: I need to make six 90 degree turns in 2" EMT conduit to route wire for a new sub-panel ...
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3answers
1k views

Grounding a receptacle when there is no ground wire?

I am replacing old receptacles with new tamper-proof ones. I opened one in my basement and realized it wasn't currently grounded, the electrical housing is a real mess and has a copper "ground" wire ...
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1answer
856 views

What could have caused CFL bulbs to glow during a power outage?

Recently during a storm, I lost power to my whole house. For ~30-60 seconds after losing power, 3-4 CFL bulbs continued to glow faintly. The bulbs were on different circuits, and legs of the ...
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4answers
86 views

What is the danger of a bootleg ground on a 110 outlet wired from a 3 wire 240 circuit?

This is not a question about whether it is in code, or safe to wire a 110 outlet with its neutral to the ground of a 240 circuit. I accept that it is unsafe, and it's certainly not up to code, I'm ...
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3answers
108 views

How can this panel pull 100A without any breakers tripping?

I have a three phase panel fed from a three phase 100A breaker on another panel. I found the 100A breaker tripped on the main panel, but none of the breakers in this panel were tripped. My ...
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3answers
70 views

240 volt house wiring, 130 volts on one leg and 112 volts on the other?

In my folks old farm house, at the panels main input from outside. L1 is 130v. L2 is 112v. When a load is applied both legs down voltage, allot! Anywhere from 10 to 20v. The wires running from the ...
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3answers
49 views

GFCI Outlet Neutral Shows Hot

I have a question about whether a GFCI outlet leaks power to the neutral contact. I have a 12 AWG (Black/White/Bare) wire coming straight off the panel directly to a GFCI. Prior to wiring the GFCI, ...
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2answers
50 views

GFCI pops when the heater comes on

Just wired a new heater like this and the GFCI pops when the heater comes on. Can someone explain to me why this is happening?
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3answers
114 views

Will 2 multi-port USB chargers overload a 13A socket?

I am a bit confused about some supposedly basic electronics concepts :/ (I kind of have an answer but just want to confirm) So let's say I have got this setup: A 13A 220V mains socket A 13A ...
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1answer
161 views

How can I tell if two outlets are on different phases?

I have a house that had a 240v stove in it, and then was replaced with a gas stove, all before I bought it. There are two regular 120v outlets under it, that are both 120v, and the gas stove is ...
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4answers
198 views

Strengthen repaired cable?

The other day, I accidentally cut the power cable on my lawnmower (you can guess how). I later repaired the cable by stripping off the cable coating and wrapping the relevant wires around one ...
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4answers
970 views

Should a neutral wire ever be connected to the neutral for the power meter?

I was not working with this circuit breaker box but I was interested to see what was going on with only 3 breakers for the entire apartment. I found a neutral from the apartment going into the ...
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2answers
2k views

Why aren't my PIR security lights working through my window?

Can any one help? I purchased a solar powered PIR security light, with the intention of putting it inside my kitchen window. The PIR would be inside the window, but this does not work. When I go ...
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4answers
7k views

Why do I have three phase electricity?

I actually have 3 phase in my home. Notes you said it was not possible. Not sure why, but it is here. Why would anyone ever want it?
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2answers
188 views

How can I prevent multiple socket from being damaged?

I have the following setup at home: one PC (300 W PSU) two 22 " TFT monitors a speaker system one external hard disk with separate PSU - all of the devices are plugged into a multiple socket ...
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1answer
65 views

what is code for jboxes in celing joists that I intend to cover with plywood?

If I cover the boxes and properly secure the cables per code can they be hidden or do I have to surface mount them?
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2answers
55 views

Why does this switch trip the breaker?

I have been living in my house for 8 years now, and there has always been a mystery switch and outlet (both located on the same wall). My wife has rearranged the room, and now we will need to use the ...
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3answers
44 views

Why am I not getting power to outside outlet?

Not getting power to outside outlet but have one outlet that has power on the outside checked the breaker it has not been tripped don't know what to do. How do I fix it to work again? Maybe one month ...
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2answers
70 views

20 amp wires into 15 amp outlet

I'm replacing a hall way outlet that only runs the hall light. I have the 15 amp outlet and the wires coming out of wall are too big to fit in holes. Guessing 20 amp? Is it ok to just wrap them around ...
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1answer
44 views

can i change out (2) 30-amp breakers with (2)40 amp breakers

replacing water heater with a tankless one, breakers have to be (2) 40 amp I have (2)30 amp breakers now the electric wire is 10-2
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2answers
66 views

No outlet in bathroom?

My 1950's era house doesn't have any electrical receptacles in the bathroom. Doesn't the Building Code state there should be? I reside in California N.A.
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3answers
210 views

Is this true about circuit breakers being out of phase in a house?

I just read this on another message board: If you know which breaker each outlet is on, it's easy. Breakers that are directly adjacent to each other (above/below or left/right) are on ...
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2answers
112 views

Exposed wiring outside

I tore down an old shed that have electricity going to it. Now the shed is gone but I have an exposed wire outside. I want to install a small street light there next spring but what should I do with ...
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3answers
347 views

Distance between floor and breaker panel?

How far off floor should circuit box be? Changing from 100 to 200 amp. Lead in wires are underground and come into bottom of box making them too short to connect.
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4answers
678 views

Using indoor-only Xmas lights — in the outdoors, where they'll get wet

Imagine that you bought a few strings of incandescent Xmas lights. They are rated for indoor use only. The tag says not to use them outdoors. They aren't any cheaper than the outdoor-rated lights ...
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3answers
1k views

Want to add outlet to bathroom

I have a bathroom with only a light switch and no outlets. The wiring is old so there are no ground wires. Can I put an outlet on that circuit and if so, should it be a GFCI?
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3answers
2k views

how many ring or radial socket makes a circuit

like how many sockets can one have on a either ring or radial circuit planned to be protected by 20A breaker