Questions tagged [electrical]

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 it is also highly recommended.

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30 views

1 light, 2 switches and 1 outlet

I'm adding a second switch in my hallway The layout is power box and switch at one end, light in the middle second switch at the other end and outlet in the next room. This is a mobile home. Would ...
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2k views

Which terminal to use on my multimeter

I have read the manual for my new multimeter but unsure which (red) terminal to use for what. The meter has one VΩmA fused 500 mA max terminal and one Unfused 10A Max terminal. I just want to measure ...
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58 views

Do these two coax amplifiers do the same thing?

In the picture below, the one on the left (black) is in use, while the one on the right (red label) is one I found that I'd like to use in another location (to amplify incoming internet signal), so ...
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Typical requirements for electrical final inspection?

I am doing the electrical work for an addition to our house. I am at a point where all receptacles are installed, and all rooms have lights, but we do not have all light fixtures picked out / bought ...
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104 views

Fitting for cable entry to home?

I need to make solar PV cable enter my home, horizontally through a hole in a wall. There are four insulated wires in two separate 1" conduits but there is one hole through which they must go in. Is ...
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99 views

Any issue with using 16 gauge speaker wire for powering LED light strips?

I have a roll of this speaker wire, if I'm powering regular 12v and/or 24v LED light strips, (non-RGB, only has 2 wires), is there any issue using it? It's a thicker gauge than the normal wiring used. ...
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225 views

What happens if I let my building permit expire?

TLDR: I pulled a permit for my house, now the inspectors are looking for more things wrong with my house than the permit pertains to. I want them out. What are the repercussions to letting the permit ...
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3answers
62 views

Ceiling light not working

In my living room there are two light switches, the cables of both come out of the same hole in the ceiling. I would like to use both switches, one for dim, ambient lighting, the other for game nights ...
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769 views

How do I join an existing outlet into PVC electrical boxes and conduit?

I have an outlet on a wall in my garage. I want to move this outlet to the ceiling for use on a garage door opener and a retractable reel extension cord. I think a way to do this is to run PVC ...
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2answers
91 views

Does a 240v subpanel need a neutral?

Was curious as I've seen plenty of pages indicating that a 240v circuits don't require neutral... in my head that means a branch circuit but I don't know if that is accurate. My specific case is that ...
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Why do unfinished basements need GFCI outlets?

I was replacing outlets in the basement and noticed that unfinished basements require them to be GFCI protected. While I did do this, I can't help but wonder: WHY?? I searched for the NEC ...
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306 views

Extension Cords - Electrical Hazards & Safety

We are looking at purchasing a Residence that has a Home Office Area attached to it. It is Commercially zoned in a Canadian Province. Upon doing a walk through, we noticed an extension cord layout ...
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144 views

Why do I measure voltage on a breaker that's off?

My breaker #1 (115VAC) is connected to my dishwasher. My breaker #2 (115VAC) is connected to my garbage disposal. Why do I get 38.5VAC on the dishwasher line, even when breaker #1 is off? When ...
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62 views

Campground sub panel grounding question

I’m involved in maintaining a small campground. Some areas are served by overhead electric and an underground services. No ground wire was ever ran or pulled from the main breaker panels. Individual ...
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2answers
57 views

Intermittently losing power in one leg of a Zinsco Panel

I am 90% sure I am losing power to one leg. Unfortunatelly, I have not had an outage since I discovered that three breakers on the same leg were un-tripped and losing power (5.7v on each). I ...
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Why can't you install a GFCI in a box that has more than 4 wires (not including ground)?

I installed a GFCI receptacle yesterday, the instructions were saying that if you see more than 4 wires in the box (excluding the ground) call an electrician. In my case everything you see to the ...
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1answer
71 views

Is it possible to wire a 120v light off of a 220v compressor?

I have a 60 gallon compressor in my shop that people leave running overnight, killing electricity. I would like to wire a light off my compressor switch so it lights up when the compressor is on. ...
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1answer
59 views

Generator wattage via their breakers

OK everyone. 1st time on Stack Exchange here and I’m looking for a few answers on wattage and not the simple stuff you should already know before going off half cocked buying a gen set. OK. First.—- ...
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Temporary (multi-hour) voltage drop that seems instigated by running an appliance?

I have a 15 amp circuit that runs to the laundry room and has on it: An indoor receptacle with a lamp plugged into it An indoor receptacle with an exercise bike plugged into it An indoor receptacle ...
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1answer
58 views

Looking for a “lightbulb” that wirelessly controls an electrical outlet

To explain the context, I have a lightbulb socket in the ceiling of my apartment, which I do not want to use, and a floor lamp which I do want to use. The light in the ceiling is controlled by a light ...
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1answer
74 views

I think I overloaded a wall outlet and the breaker never tripped

! Any suggestions on how to fix this? How dangerous is it right now? Thanks for suggestions. !
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How to disable 'cooktop lockout' on Kenmore 1993 stovetop range?

* UPDATE: the gas turned off due to the earthquake shutoff. that was the problem * I have a Kenmore stovetove from 1993 (model #: 362.75188691). We recently unplugged it for 3 weeks and disconnected ...
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2k views

What does code say about powered semi-permanent furniture?

I like to build things, and I've been drafting up plans for a headboard for quite a while now. One of the things I want my headboard to have is a number of outlets, since laying on my bed is where I ...
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1answer
36 views

Replacing and outlet (2 plugs) with only one black, one-white, has ground wire

I am replacing a dated outlet. when I removed the plate, I found 1 black wire, one white wire and a ground wire. The other outlets I replaced had two sets of wires, 2-black, 2-white, 1-ground. How do ...
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1answer
18 views

Adjustable bar hanger -Maximum load 17Kg/50LB -is the load for vertical or horizontal position?

Today I was in Home Depot looking for some electrical boxes and switches and I noticed this thing called Adjustable bar hanger which is rated for a 50LB load. Is this rating for horizontal ...
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3answers
74 views

Which wire is line vs load wires

Which wire in this configuration is line and subsequently which ones are load? Legend: B1-B6 are 6 black wires. Not shown: each switch has ground wiring as well. Left them out for simplicity. There ...
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30 views

Philips hue extension cable substitution

I have an outdoor Philip's hue light strip. The supplied cable is not long enough. They do sell extension cables for way too much money so I am wondering if I can just use ordinary low voltage wire ...
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2answers
77 views

Is there a compatible breaker fuse?

The house I recently purchased has a fuse box (something I have never had before). I was hoping to use breaker fuses until I am able to get the box upgraded to breakers, however I don't know a lot ...
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1answer
39 views

Is there a simple way that does not involve adding more end to end wires to make this a two way switching?

Below it is the wireing diagram that shows you how my garage lights are powered. I intend to add the power outlet and the switch that are to the right of that brown dotted line, they are not there yet,...
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40 views

Can you use a dimmer with a can (recessed) light conversion kit?

I have a can light (recessed light) that I need to convert to hanging a pendant light. The conversion kits have you plug into the socket, and I am hanging a dimmable LED fixture with a wall dimmer ...
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1answer
77 views

Camera system install

I am replacing some old cameras that came with the home to more modern ones. I took apart 1 of the cameras to find this: Now I am guessing the yellow is video, and black and red are power (hot and ...
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3answers
47 views

Smart thermostat (high voltage) makes heater constantly on

I have a smart thermostat (Mysa) I'm trying to install. I have 2 hots coming into the gang box (black and red). These are connected to another black and red that goes into another box with another ...
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39 views

How should I connect a new light fixture to three black wires and one red?

I'm changing my light fitting and I have 3 black wires, 1 white. I have tried combinations and cant get the upstairs light to come back on. Can someone help?
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1answer
34 views

Analog Vom and AC reading [closed]

I have a surplus 120/240vac generator that has a problem with AC voltage invading the DC control circuit. The invading voltage is erractic. My Fluke 86-5 digital meter is to slow to accurately read ...
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1answer
48 views

What would be the wiring diagram to add a receptacle switch combo to the outdoor garage lights circuit?

I need one more circuit in my garage (to run the dust collector and the table saw at the same time). I already have a circuit with ground and GFCI outlet. I also seem to have another circuit that ...
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1answer
56 views

Is cable marked 14CU 2 CDRS NMD90 two wire or three wire?

I have the below cable in my garage and I am not clear if it is a two or a three wire cable. I was convinced it is a two wire but after researching I am now seeing it could be a three. This is ...
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2answers
117 views

Replacing 2 wire switch with 4 wire switch, box has 3 wires. Help?

I’m trying to replace a light switch that has 2(Red & Black) wires directly connected to the switch itself with a 3rd(White) wire that’s capped off in the box with a new smart switch that has 4(...
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1answer
89 views

Adding safety switch between meter and panel

I'm wanting to upgrade my 125A, 24 space panel to 200A, 40+ spaces. I'm confident to work on the main panel, but not the main service entrance. Would I be able to add a safety switch (pic below) ...
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1answer
204 views

Why don't HVAC service people want to use outdoor temperature sensors to increase efficiency?

Here in central Virginia, most houses use heat pumps with electric auxiliary heat. I have inquired with several different contractors about installing outdoor thermostats on my units to 1) disable ...
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Any benefit to air sealing fixture boxes in cathedral ceiling? If so, ideal method?

New house. We have a cathedral ceiling. Foam vent baffles from eave to ridge, r-38 fiberglass (unfaced), sheetrock. Most of the lights in the ceiling are LED puck lights that have a built in gasket ...
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43 views

Why do I read no voltage with my humidistat's solenoid is installed?

I've been troubleshooting my humidifier for a bit now (just learning this stuff as I go). It would appear the wiring for the furnace (apparently the transformer) meets the wiring for the humidistat ...
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1answer
75 views

Lighting a Room with LED Light Strips

I want to light an entire room (~300sqft) using light strips as there is no wiring available for traditional lights. I want to make 3 rectangles on the ceiling ("zones") that I can control ...
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3answers
5k views

Why is my voltage dropping with load and why is current flowing on my ground wire?

I am not an electrician, but I've been researching a lot recently to try and figure out why my system is behaving so strangely. Main problem: Lights flickering, sometimes quite severely, and ...
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1answer
45 views

Wiring for stairway & two lights on landing

I'm looking for how to wire an MK switch on my landing. I thought I had a straight forward two-way setup with a switch at the bottom of the stairs and one at the top. But the upstairs switch is two-...
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2answers
51 views

Trying to work out existing light switch wiring with possible loop

Have a row of ceiling lights which used to work about 10 years ago. Want to get an understanding of the wiring at the switch before I go to the effort of removing the ceiling panels which holds the ...
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3answers
82 views

Dedicated Laundry Room Circuit?

I live in Florida. According to the Florida Residential Building Codes (2017): E3703.3 Laundry circuit. A minimum of one 20-ampere-rated branch circuit shall be provided for receptacles located ...
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96 views

Connecting whole house surge protector to breakers

I've ordered a Siemens FS140 Whole House Surge Protector that I will install myself. The instructions say to keep the leads as short as possible and straight as possible. I have an open square d ...
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2answers
104 views

Sparks from desk lamp?

I have a UL-approved lamp that I've had on my desk since about 2004; it's the kind with two metal arms rising from a heavy base that connect to a halogen bulb fixture. The other day I was working at ...
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145 views

How do you achieve this stairway 'chaser' effect with an LED light strip?

Here is a gif showing it in action, once the motion is detected, the strip slowly lights up directionally from bottom to top, how is this achieved? I can't seem to find how this is done: Looping GIF ...
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1answer
61 views

Subpanel breaker size and wire size

I'm looking to add a subpanel for a basement kitchenette. Here are the power requirements and intended new circuits. Appliance Voltage Amps Slot Circuit Amps Oven/Range 220 28.0 ...