The installation of wire and/or electrical devices, to allow the transmission of electricity from one point to another.

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Why am I getting a reading of 119.7 volts neutral to ground?

el. contractor has left (residential house) - checking the branch outlets: Hot to neutral: 118.8V // Hot to Ground: 0V // Neutral to Ground: 119.2V?? How come? should I be getting such voltage perhaps ...
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1k views

Two white and two black wires in ceiling box

Im trying to install a replacement light and the box has 2 black, 2 white and 2 ground wires, but my fixture only has one of each. I didn't really pay attention when i was pulling everything apart... ...
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239 views

Replacing 60-year old light switch - which wires go where?

A light switch in my house won't go to the off position, so I need to replace it. Every direction I've read about how to do this says to keep the wires in the same configuration (top, bottom, ...
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52 views

Replacing outlet with a GFCI outlet

I'm trying to replace an outlet with a GFCI outlet and when I remove the wall cover and pulled out the old outlet it contained one neutral one ground and two lines on the hot side. The original outlet ...
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145 views

How to wire multi-control rocker switch

What's the correct way to wire a multi-control rocker switch (e.g. Leviton 1755) that has three switches on one yoke with a common supply? What wire(s) do I run from the switches to each of the ...
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105 views

Does the NEC limit the maximum size of junction boxes?

In this question, the OP has constructed a large junction box out of several extension boxes attached to a "regular" junction box: Is there any upper limit on the size of a junction box (either ...
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374 views

How do you replace existing wires behind walls

Existing wiring installed in walls. May or may not be stapled. Some of it is stapled with newer plastic staples, older runs with metal staples. I've had varied success with this by twisting and taping ...
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259 views

How can I make a sunken electrical outlet line up with an outlet cover?

I recently replaced drywall in my bathroom but made the mistake of not checking to see if the existing electrical outlet boxes lined up properly. The result is that the electrical outlet box (and ...
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71 views

How to connect the wires when changing from standard to electronic ballasts?

I'm changing from an old standard ballast to an electronic type. Tried match the wiring but something went wrong as the tube doesn't light? When connecting the wires to the sides that the tubes are, ...
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678 views

Running a new kitchen light circuit from a receptacle with a “traveller.”

I'd like to power a set of three ceiling-mounted down-lights from an existing receptacle in a kitchen reno. A picture of the existing receptacle is attached. My confusion is it has a fourth wire ...
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198 views

A splitter for low-voltage wire

I want to run some low-voltage wire in my yard for path/accent lighting. I want to avoid connecting everything to a single segment of wire, mainly to reduce power loss associated with long runs. So ...
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6k views

3 wire service to panel… neutral and ground wires on the same bar?

I'm getting two conflicting reports and was wondering if anyone can help me. I was told that on the distribution panel, grounded conductors (neutral) and ground wires need to be separated in the ...
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183 views

Joining 8 wires into one

I have the cables from 9 bulbs joined into one using a screw terminal temporarily. What is the best thing to use to do this in a way that's waterproof and suitable for outdoor use. Whatever i use ...
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1k views

Is it safe to wire a plug-in sconce directly to the junction box?

There is a wall sconce that I would like to buy, but it is a plug-in variety and there is no power outlet nearby (only an existing light fixture). Is it safe to cut off the plug and wire it directly ...
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1k views

How do I wire this bathroom fan?

I am replacing a bathroom fan. The switch on the wall has three switches that were in use (one for the fan, one for the light, and one for the night light). I already took out the old fan and now ...
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764 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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1k views

How can I install 3 way switches that cut power to several 2 way switches?

I'm rewiring my unfinished basement. It has two entrances - a cellar door to the outside and the normal staircase in the house. Even though it is unfinished, the basement is kind of divided into ...
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1k views

Is there a required spacing between where high and low voltage lines attach to a house?

If both the high and low voltage lines are strung from the pole to the house, is there a minimum spacing required between where they anchor to the structure? The AC lines enter through the ...
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536 views

Why would lights plugged in to lamp holder outlet adapter be testing as live?

We bought an old pendant light for our flat, with a two prong plug. Rather than rewiring it in to the existing outlet, I just bought one of those $2 lamp holder outlet adapter. To be on the safe ...
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2k views

Could a power outlet be ruining hair straighteners?

I'm not sure if this is the right place to ask this. We've gone through 3 hair straighteners in the past 2 months. 3 different models, 2 different brands. The outlet is a normal outlet (No GFI) and ...
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3k views

In Canada (Ontario, specifically), is 'CL2' rated cable acceptable for in-wall installation?

I've got a bunch of cable to install in the wall for my basement reno and have an excellent source for various cable types (speaker, video, cat6, etc), but the cable 'only' has the US CL2 rating, and ...
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100 views

How can I make a 240 volt 4 wire to 3 wire extension/adapter cord?

I have an existing 240 outlet wired into the wall of my shop. It's there to run a phase converter that I use about 2 hours a week. I want to use this circuit to run a 240 window air conditioner when ...
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73 views

Adding additional outlet - max wires and box size?

I am attempting to add an additional outlet higher up in a wall for a wall mounted TV. There is an outlet below where I've mounted that I planned to run power from up to the location by the TV. When ...
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177 views

Got a used Electric oven - not sure what wire and breaker to use

We just got a used electric oven. We had propane, but no longer have access to propane. Currently there is only a standard wall outlet behind the oven. I realize I need to run a new wire, etc., but ...
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106 views

Contractor cut wire in wall - all still works fine - is this dangerous?

A contractor who is not an electrician tried to be "helpful" and opened an outlet box (and other nearby boxes that were drawing the same power) that wasn't working to try and fix it. He changed some ...
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77 views

Condensate pump wiring

[In the UK] I need to replace the condensate pump in my basement (for pumping condensate from the boiler), and the current one is simply wired up to a standard 13A plug, but reading the instructions ...
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57 views

Can I replace the knob and tube wiring in the ceiling but not the walls?

We are planning to replace the K&T in the attic so we can put in some insulation. Is it possible to leave the K&T in the walls by hooking them up to the new wiring at the ceiling/wall edge? ...
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530 views

Can I use 10 gauge wire off of a 20 amp breaker?

Can I use 10 gauge wire off of a 20 amp breaker for outlets, lights or a window unit? I am wiring a barn and have a lot of 10/3 wire I would like use up.
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94 views

Which wire should be capped when replacing an old 4 wire smoke alarm with a 3 wire alarm

We have to replace an old 4 wire smoke alarm, wire colours are: white, black, orange, brown, in our condo with a 3 wire smoke/co2 alarm. My question is which wire from the old system should be capped ...
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56 views

Electrical switch installation

My 2-way light switch doesn't work. I need to replace it but all I have on hand is a 3-way. How do I wire it to function as a 2-way?
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66 views

How do I add wire to a rusted electric box?

I'm adding a plug to a closet so that I can put my server and router in there. I am trying to daisy chain it off of the nearest plug, but when I try to remove any of the knockouts they won't budge, ...
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144 views

How should I connect a chandelier from France?

I purchased a chandelier from France. The 3 wires are blue, yellow and brown, rather than the standard black, white, and ground. How should I connect them?
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481 views

Do I need a junction box for a hardwired stove?

I'm replacing my drop-in electric stove with a free-standing electric stove (both are rangetop + oven). The drop-in stove was hardwired and the wiring comes up out of a hole in the floor about 3" from ...
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126 views

Can you wire a 30A 2P standard circuit breaker “downstream” from a 60A GFCI 2p circuit breaker?

Will this still provide GFCI protection? Is this against code? Does this represent a hazard? I have a subpanel with a 60A GFCI circuit breaker, that I want to use that to feed to 2 30a 240v ...
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285 views

How do you hard wire a garbage disposal?

I do not have a dishwasher. There was no existing garbage disposal and there is no plug under the sink. I'm trying to hard wire a garbage disposal there. I want to create a light switch off an ...
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778 views

Is it okay to use both the backwire holes and the side terminals on an electrical outlet?

I'm tying into an existing outlet box to provide power for a new electrical outlet. The existing outlet already has 2 lines connected to it - one from "upstream" (to the fuse box) and one downstream ...
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110 views

Can I run wireless alarm sensor in same conduit as power?

I need to connect a water flow valve to my wireless alarm. I plan on connecting the water flow switch to a wireless alarm sensor Currently there is a junction box that has power running to it that ...
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3k views

Is there any code for running Ethernet cable (through attics)?

We have an unfinished attic - the insulation-everywhere, step-in-the-wrong-place-and-fall-through-the-ceiling kind. I'd like to run Ethernet cable through the attic. I know for Romex, I'd have to ...
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346 views

what are the little dots on wiring diagrams?

There are little dots along the lines in many wiring diagrams, like in response to the question "How do I know if a ceiling fan with light and the switch are wired correctly?". Some of these seem to ...
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10k views

3-Way Light Switch, two blacks and a red?

Usual story of remodeling etc. Replaced all the other 4 ways and 3 ways near it just fine, then I run into this guy. It's a 3-way, and I could have sworn I put all the wires exactly where they were on ...
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347 views

Can I install a subpanel using only two ungrounded (hot) conductors and a grounding conductor?

we removed the inside part of an air conditioner / heater from a mobile home. we plan to use this area as a small pantry. The wires that were connected to the heater is 2 black connected to 2 seperate ...
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2k views

How can I wire a GFCI receptacle and a combination switch/receptacle device?

We are trying to install an outside receptacle box. We have one GFCI receptacle and one switch/receptacle combo. We want the combo to be protected by the GFCI. We also want the switch to control the ...
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1k 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 ...
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5k views

What is the minimum distance that should be maintained between parallel electric and data cables?

I need to run some electric and data (coaxial, UTP Cat5/6 and phone) wires from one room to the adjacent rooms. I've read Can I run CAT5/6 cables parallel to electrical cables? but I understand that ...
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280 views

How do I extend existing 10/3 wiring to run a compressor that needs 12/2 wiring?

I am installing a new compressor in my garage. I already have 240V installed to run a kiln. The kiln is only used maybe 10 times a year. My thought is to splice into the 240V line to the kiln to run ...
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4k views

Does a single-gang double timer switch exist?

I have a single gang outlet that current has a double/split switch installed controlling an inside light and an outside light. Ideally I'd like to have the outside light on a timer. Does a single ...
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11k views

What size wire do I need to connect a portable generator inlet to my main panel?

I am planning on installing an interlock kit and backfeeding my panel with my portable generator. The backfeed will be to a 30 amp breaker, coming from the 240/30A outlet on my Generac 5500. The ...
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3k views

How do I wire a new ceiling light with power to the ceiling and 3-way switches?

I'm trying to install a new light fixture in the front hall. Currently, the light is activated by 2 switches (on each end of hall). The NEW fixture has 1 black wire and 1 white wire. The ceiling wires ...
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1k views

Why am I measuring low voltage when I connect this fluorescent fixture to an existing circuit?

My bathroom has two switches: one [was] connected to two overhead can lights (with CFLs), and one [was] connected to a fluorescent wall sconce (one of those ugly circular plastic things that I can't ...
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Third Wire in 14-3 Wire Showing 50V When There Should be None

In the basement I have 19 recessed lights connected to 8 3-Way switches. There were dimmers on the 4 switches located in the main 4-gang box, and they were making a lot of buzzing noise. Not only ...