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

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1answer
156 views

What type of wire should I use to repair a toaster oven? [closed]

The connector from one of the leads from my toaster oven's power supply to the top heating element broke off. The wire is too short to just add a new connector, so I need to replace the wire. The ...
0
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3answers
94 views

How to add a new cable box to an existing stud wall

I need to wire in a new speaker volume adjuster and box into an existing stud wall. My worry is I am not sure if the speaker wire will be able to get to where I need it to go. This is because I am ...
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0answers
109 views

How do I wire a two-way switch?

I have a one gang two way switch on top landing, there are four red wires one yellow one blue how do I wire the switch?
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2answers
973 views

Does the neutral wire float or go to the neutral bus on a sub panel?

Does the neutral wire float or go to the neutral bus on a sub panel?
4
votes
1answer
1k views

Can I run THHN wires through an attic without conduit?

I have a new workshop and I'm running 6/3 out to it. My run will need to go from my existing panel through the attic, down an external column (with normal housing siding) and then into an underground ...
3
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3answers
2k views

Borescope recommendations (features)

I'd love to get a borescope, but I've never used one. Should I try to find a place to rent one first(does such a place even exist?), or should I bite the bullet and buy one. What features should I ...
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2answers
115 views

Is it legal (or green) to have an unswitched bath exhaust fan with nightlight that runs 24/7?

I just bought an Opportunity Home - a totally refurbished house that is "green." However, the bathroom exhaust fans - in three bathrooms - all have motion detector nightlights and run 24/7. There are ...
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0answers
66 views

Is there a flow-chart to trouble-shoot electrical faults?

A little back-ground - I'm in India living in an old old old house; some of the wiring dates to the 1920s. Apparently back in those days the power-house supplied residences as 1 - phase Light, ...
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2answers
126 views

What is this type of lead called and how do I wire to it correctly?

I'm becoming more frustrated than I'd like to admit trying to wire this button up, and I often find the easier method it was designed for when I'm having this much trouble. Sorry for the poor man's ...
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3answers
2k views

What should I do about a receptacle with 2 circuits going through it where white wires are hot?

I have a receptacle that has 3 white wires and 1 black. The black wire is hot and 2 of the white wires are hot but on a separate circuit than the black one (2 bedroom's outlets on separate circuits ...
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1answer
158 views

I have voltage on my neutral wire for a 220 volt ac inverter and blew up some of my house appliances

Why does my white neutral conductor has voltage on it? Is a 220 VAC from a DC to AC Inverter circuit supply. The outlet is like a normal American 110 VAC socket but I requested it to be made as a 220 ...
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5answers
1k views

Since neutral is connected to ground how is current kept off of ground?

If neutral is connected to ground and current desires ground then I would think it would go to ground. But my understanding is that it is kept off of ground until it's "upstream" of the breaker box, ...
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3answers
279 views

How do I fish a wire into an existing electrical box?

I have a 2-gang switch box that houses two light switches. I'm replacing one of the switches with a Honeywell Programmable Light Switch PLS751, which requires both an ungrounded (hot) and a grounded ...
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1answer
124 views

Do I have to hardwire my electric garage heater, or can I use an existing 240V receptacle?

I just purchased a 17000BTU heater for my garage. The instructions say to hard wire it with 10/3 and 30amp breakers, 240 volt. The company says the warranty is void unless it is hard wired. I have an ...
6
votes
1answer
636 views

Is it OK to run 12-3 cable to a ceiling fan from a switch that's wired with 12-2?

I'm installing a ceiling fan into a room that has no existing ceiling mount (no light or ceiling fan previously existed). I've got a ceiling fan mount in place with a supporting brace that can support ...
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2answers
3k views

How do I connect the common wire in a Carrier air handler?

I am trying to install a new wifi thermostat in my home and need to locate the common terminal for my air handler. I have a Carrier model FB4CNF030. It's a new construction home and I have the blue ...
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votes
1answer
215 views

How can I determine if my HVAC system has features which are not currently wired to my thermostat?

I recently upgraded to a Nest Thermostat. This new thermostat supports many more terminals and features than my previous thermostat. My old thermostat had the basic terminals; G,R,C,Y, and W. I am ...
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1answer
85 views

How do I find the switch plates behind the plasterboard walls?

We were having a house built and the builders have gone bankrupt so we have been left to finish everything off ourselves. The plasterboard walls have been put in and the wires are behind the walls for ...
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1answer
473 views

Do I need conduit for an indoor sub-panel feeder line?

I'm adding a 100A sub-panel to feed a stove and water heater. The sub panel is indoors and in the same building as the mains panel. Do I need to run the supply feeder in conduit? I'm in Michigan and ...
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4answers
1k views

Why is it good practice to remove sheathing from NM wire when going through conduit?

I've been discussing specifics of an electrical job with a licensed electrician and he mentioned that in my area, it's acceptable/recommended to feed 12 gauge NM wire through an outdoor conduit but ...
4
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1answer
977 views

How do I wire a switch/receptacle combination?

Here's my current situation. I've got 14/2 to the ceiling. The hot wire has a runner, which runs down to the switch, and the other wire is a switched hot, back to the light. The other side of the ...
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5answers
3k views

Why is my 3-prong dryer outlet showing 240V between hot and neutral/ground 'L' prong?

I'm trying to tell what might be wired wrong with our dryer outlet. Using a Fluke 75 set to AC, I read 238V between the hot leads, 118V from one lead to ground, and 238V between the other lead to ...
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1answer
44 views

Can I go from a 3-prong outlet and connect to a 2-prong outlet and switch?

I have rewired the first 2 outlet in a circuit with 14-2 wire. However, I do NOT want to rewire the rest of the circuit because it is inside non-accessible walls. The rest of the circuit is a front ...
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2answers
594 views

How are equipment grounding conductors counted for determining conduit or junction box fill?

Suppose one is doing junction box fill calculations for a typical NM-B installation such as the one shown below for a switch box with one normal and one three-way switch. Which of the wires count ...
4
votes
1answer
407 views

Can I run NM-B inside EMT conduit for protection? [duplicate]

If I'm adding some new receptacles to a garage, and the wiring will be run surface-mounted to walls and ceilings, I think protecting the wiring with EMT conduit is probably a wise way to go. I'm ...
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2answers
12k views

What should I use to wire a 220v electric baseboard heater and thermostat? 12/2 or 12/3

When I bought my baseboard heaters, thermostats and 220v breakers I was advised to get 12/3 wire. When I attempted to install the heaters I found that the thermostats, heaters, and even breakers have ...
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2answers
254 views

How do I replace this switch with a timer?

I was trying to wire in a timer switch for a vent fan. When I went to replace the switch (which I knew was a 3 pole) I was baffled by the way it was wire. 4 wires run into the box, two of the hot ...
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4answers
14k views

Can different gauge wiring be used in the same circuit?

I am extending a lighting and outlet circuit in a basement. The current setup has the following characteristics 15 amp. circuit breaker (200 amp service) 4 existing lighting fixtures using CFL bulbs ...
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2answers
623 views

Is a splice permitted in a PVC conduit body?

I'm talking about something like this Type LB Conduit Body
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3answers
2k views

How do I wire a humidifier without a 24 VAC IN terminal?

The instructions for the humidifier I'm installing says to connect the humidistat wiring to the two terminals "marked 24 VAC IN". My furnace doesn't have terminals marked that. I have R,C,W,Y.G. Am ...
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3answers
906 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 ...
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2answers
968 views

How can I find the first receptacle in a circuit?

I know how to wire a GFCI receptacle and all the things to go with it in doing so. But what I do not know is the following. I understand the GFCI receptacle should be first in line to protect the ...
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2answers
327 views

Wiring Bathroom Fan Switch

I'm trying to wire a new single pole dimmer (two black wires, one ground) and single pole switch (no wires, just screws) for the fan in my bathroom. What I see coming into the box is three separate ...
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1answer
85 views

How do I make the connection for 2 lights with a power source between them?

I have 2 sensor activated lights with the power source in between the two lights. It is run with 14/3 romex wire from each light source to the power source. How do I make the connection?
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1answer
85 views

Wiring requirements for garage and bedroom addition

I've just added a new garage and bedroom and am about to wire them. I've done a lot of wiring in my house, know all the basic requirements for how wiring is run, etc, never had a problem with ...
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4answers
211 views

How is the alternating current in your home a complete circuit?

Here's what I'm asking: if the electricity flows from the hot wire to device X, then to the neutral wire which ultimately carries the signal to ground/earth at the panel then how does electricity "get ...
2
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1answer
147 views

What should I do about an exposed wire for landscape lighting?

Found an exposed wire from an old landscape light in the yard that is tripping a breaker. Can I just cap it?
5
votes
4answers
2k views

What are some ways to wire rear speakers in a home theater system?

I have two rear speakers, that I never use, since I don't have a good way (yet) to wire them. I have a hardwood floor. And the side of the room that is nearest to the TV+Audio source is open. So I ...
3
votes
1answer
266 views

Where do I attach the fixture grounding wire when no supply grounding wire is provided?

I am replacing an undercounter light and I have a black, white and red supply wire but no green or bare copper supply wire. Where do I attach the green ground wire attached to the fixture?
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2answers
859 views

Can I use a receptacle and switch for a dishwasher and garbage disposal?

I would like to install a receptacle under the sink to control the dishwasher and garbage disposal, with a single pole single throw switch mounted in the wall above the counter top to control the ...
5
votes
3answers
176 views

Provisioning for a hypothetical electric car

I'm doing a remodel on my house which involves building a new garage. I have no plans to get a new car soon but presumably will in 1-5 years. How should I wire for an undetermined electric vehicle ...
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1answer
250 views

How do I wire a double stack switch?

I have double stack switch with intention of 2 independent light areas ( undermount cabinet lighting and overhead pot light. When I connect black hot wire to black screw ( both feeds simultaneously ...
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1answer
181 views

Can I use a switch loop to power a ceiling fan?

Need your help, please. I have a single pole switch that controls the wall’s receptacles. It has one 14/2 cable, white/black/ground, where the white is hot. I would like to install a ceiling fan. I ...
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1answer
135 views

Why is one half of a subpanel not working?

I have 12/3 wire running out to my garage. I have a double 20 amp breaker in main box and a subpanel with two single 20 amp breakers in the garage with black to one breaker and red to the other. The ...
5
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2answers
2k views

Can I wire a refrigerator and dishwasher on the same circuit?

Can I wire a refrigerator and dishwasher on the same 20 amp circuit?
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4answers
2k views

How Do I Plan for an Intrusion Detection System?

I would like to plan for an intrusion detection system in a home that is currently under construction. The home has a walkout basement that is sloping, shown in the rear elevation picture shown ...
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1answer
316 views

How do I replace this switch with a dimmer?

I'm trying to install a dimmer switch (single pole) in a 4 gang box. In the current set up, I have two black wires attached to the SAME screw (one of those wires is from the back of the box, while ...
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3answers
841 views

How do I ground my replacement outside porch light?

I am attempting to replace an outside porch light. After removing the old light, I found the metal electrial box had the ground supply attached to a screw. The new light has a green ground wire and I ...
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2answers
347 views

Can I mix 12 gauge and 14 gauge wire in the same 15 amp circuit?

I have 12/3 wire from a switch to 3 light fixtures; can I feed the switch with 14/2 wire from a 15 amp breaker?
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1answer
189 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 ...