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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6 views

Moving 240v disconnect box

I have an outdoor 240v disconnect with 6awg cable (red/white/black/green) running from the main breaker to this disconnect box. There's a 110v GFCI-protected branch circuit that goes to some wall ...
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2answers
52 views

Is it safe to plug a power strip into a SurgeMaster outlet?

Similar to this question, but not exactly the same, since this is an actual outlet and not a power strip. Also, is the grounded light supposed to be on? Should I just replace this with a normal ...
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Is it ok to replace all 2-prong receptacles with GFCI ones without identifying head of circuit?

I'm replacing a few 2-prong receptacles with GFCI ones in an old house. My understanding is that ideally we should identify head of circuit and only replace the head receptacle with GFCI one, while ...
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Conduit / Best practices for a shared ground between branch circuits in residential?

According to NEC 2014 250.130 : Article 250 - Grounding and Bonding VII. Methods of Equipment Grounding 250.130 Equipment Grounding Conductor Connections. Equipment grounding conductor connections at ...
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4answers
57 views

Double gang outlets with more than four outlets

I can find adapters for single gang outlets with up to six receptacles. However, I can't find any way to get more than four outlets in my double gang outlets. Does anything like this exist. My wife ...
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751 views

Is it possible to tell from labels if the breakers are AFCI / GFCI in the main panel?

I'm deciding if I should upgrade my main panel, and one of the input I want to understand is how different is this panel from modern code requirement. From the photos below, is it possible to tell if ...
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1answer
47 views

AFCI receptacles vs GFCI receptacles for non-grounded outlets

I'm replacing a few 2-prong receptacles in an old house, and all these outlets do not have ground wires. Cost for rewiring is too much and I'm thinking about using GFCI / AFCI receptacles instead. My ...
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1answer
75 views

Can chain link fence rail be used as electrical conduit?

I just removed a chain link fence and had the idea to reuse the rail pipe as underground electrical conduit. I already have part of a trench dug and was planning to buy some conduit, but if I could ...
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1answer
32 views

Voltage detector beeps on the sides of smart dimmer switch after installation

Possibly similar to Should a smart switch (that requires a neutral wire) cause my non-contact voltage tester to beep? but slightly different symptoms, and only on one switch. After installing Leviton ...
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1answer
13 views

How should I wire a ceiling fan remote where one switch is used to control the fixture?

Ceiling has red, black, white, and ground wire. Remote box has black and white wires on top (to ceiling) and black, white, and blue wires on the bottom (to fan). The fan has black, white, blue, and ...
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36 views

How can I tell hot from neutral on the power cord of an evaporative cooler?

I have an Essick 4700 CFM cooler, where the power cord was cut and had a custom 3-prong attached, to trim the cable length. I detached the prong when winterizing, not realizing that this cable doesn't ...
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1answer
57 views

Does these electrical issues require an immediate repair?

We are discussing the purchase of an existing house in France (built in 1948 and in good conditions overall), where the law prescribes that each aspect of a building is inspected by a professional ...
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1answer
32 views

New 3 way switch for basement

I live in a 90 yr old house. The basement lights are all on 1 switch at the top of the stairs. I would like to change this to a 3 way switch and add a switch at the bottom of the stairs. Am I right ...
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Two rocker switches stopped working after replacement

I replaced 20-30 switches in the house today, and all but two (which coincidentally share the same double gang box) work. I've tried re-terminating the wires, swapping wires, and trying a different ...
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25 views

Mr Cool Ductless Mini Split 9k BTU

I am trying to figure out the wiring for this model I am installing. The minimum circuit and max fuse is 15 amps. What size wire and breaker do I need? Also do I need a disconnect for this mini split?
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60 views

Is there such a thing like low profile/depth electrical box to install a power outlet on a cinder wall that has no framing?

I have a small section of a wall that has just like 1.5-2" of styrofoam insulation and then it will be drywall on top of it This is because it is an old toilet drain that was put there close to ...
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Wiring for smart ceiling fan with AC adapter

I have a Carro smart ceiling fan with a light and remote with two wall switches. The wiring from the ceiling is red, black, white and ground; there is an AC adapter pack plug in from the fan as well ...
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1answer
57 views

Can my panel support a 60A circuit for EV charging?

I’m awaiting an EV I ordered, and in order to prepare for it, need to install a 240V outlet in my garage. The circuit would be for a 'Ford Connected Charge Station': 60A breaker (240V, 2 pole, 60 Hz) ...
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2answers
138 views

Can a circuit with three-ways be split in two branches?

I have a circuit like this: panel ======= three-way (1) ============ three-way (2) ===== ceiling-mounted fixture I would like to have another fixture a bit further, with its own new three-way, but ...
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1answer
101 views

New 115v air conditioner burnt by a 240v outlet - is it fixable?

First I'd have to admit my own ignorance and did not notice an AC outlet in my house is 240v, before I plugged in a brand new 115v window unit only to destroy it. Is this broken AC fixable, typically/...
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25 views

How do I determine the earthing arrangement for my outbuilding?

I have an outbuilding, which I believe is earthed by a TT system (because it's not bonded to the supply earth and has an RCD), but I can't find any earth inspection point. Is there an easy way for me ...
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1answer
54 views

How to wire 2 lights to one switch

Ontario code now requires 14/3 between the switch and the light. Can someone provide a diagram showing how to wire 2 lights controlled by one switch with power coming into the switch & 14/3 ...
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1answer
62 views

What is the appropriate fitting to connect an armored cable to this stand-alone receptacle product?

I have a pre-existing #6-3 armored cable (without a separate ground conductor), as shown here: I am replacing the range this was connected to, and would like to provide a 4-wire connection via a 14-...
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I am trying to provide keypad access to a remote gasoline pump at a golf course [closed]

I have 120Volt power to the pump. I would like to interrupt this power and have a keypad switch on the power for appoximately 15Min. for each authorized user. I realize a may need a contacter to ...
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1answer
40 views

Retrofit ground wire from water main ground

I am replacing an old oven. It is currently wired with 3 wire (AL SE cable) and has no dedicated ground run. I would like to install a proper 4 wire outlet for the new range. Am I allowed to use the ...
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3answers
61 views

GFI Outlet Tripping (A/C and Extension Cord)

Looking for any insight on my situation: I have an A/C unit that is rated 15A, 1240W, 115V. Since all of the bedroom and living room outlets in my apartment are all on the same 15A breaker, I decided ...
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1answer
63 views

Nest needs C wire - Goodman PGB024075-1

Complete novice here trying to install a Nest thermostat in our new home. I hooked everything up according to the Nest guide, but the thermostat gave a power/battery error message. I've gathered that ...
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3answers
49 views

Power bar with manual reset to protect from “flash on” during power outage

We have frequent power outage in our area, and the power often glitches on (flashes on) during the black out. This causes problems with our home electronics: TV, router etc.. as some devices, when ...
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5answers
3k views

How to safely and legally join building wire behind drywall

I had a small kitchen fire and the electrical wire behind the drywall in my kitchen melted. What is the best way to safely and legally (to code) rejoin the wire?
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Lightly loaded breakers kicking off when hydro restored after outage

Breakers kicking off right away when power is restored after a hydro outage . Most are lightly loaded, Example-air exchanger , gas fireplace .Both of these have there own breakers. No problems with ...
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1answer
86 views

Light switches On in the Off position and Vice Versa

Good Morning, I have a Levitron Two Position switch, which switches on in the OFF position. I know a cheap fix is to just turn the switch around, but there is a label at the bottom of the switch that ...
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2answers
96 views

Can I use the metal cladding of a cable as ground for this range installation?

I have a pre-existing #6-3 cable (without ground) with metal cladding on a 50-A two-pole circuit that was wired into a range. As shown in the photo, this cable has only black, red, and white ...
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2answers
83 views

Can I repurpose an unused 6" radon pipe as an electrical conduit?

When the house was built, 3 radon pipes were installed between the basement and the attic. They are 6" PVC plastic are completely within the walls of the home except for their ends. Only one of ...
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2answers
47 views

SER cable Through Crawl Space (encapsulated)

Situation: I am moving my main electrical panel 200A to a utility room at back of the house. Given this new distance, an outside disconnect will be installed, technically rendering the new indoor ...
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2answers
94 views

If I split a 240v 30amp (has neutral) circuit into two 20amp 120v circuits, would that count as two 20-amp branch circuits to meet code?

I have an extra 240v 30amp outlet in my kitchen that was originally for my dryer. I know how I would be able to split it, but I am not sure if it would fulfill the code requirement: Countertop ...
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2answers
45 views

Avoiding circuit overload with primary + battery backup sump?

In a two-pump, battery-backed sump system, how do people avoid excessive power draw when the battery charger and primary pump want to run at the same time? I'm imagining a post-hurricane scenario: The ...
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1answer
78 views

Why are there 2 wires taped together? 2 white and 2 black

I'm switching out all my outlets and found that every white and black wire has an additional one taped to it. What is the reason for this and should I redo the connections with caps?
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2answers
74 views

Powering LED strip lights at two different brightness

The Plan I am working on finishing my basement and planning on installing LED strip lights inside a lowered crown facing up. Now where it gets complicated. I'd like the lights to have a dim setting ...
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3answers
2k views

Light fixture wiring - black to black, or white to black?

USA - I’m installing a new ceiling light fixture in a bathroom. The instructions (and every how-to video I watched) said to connect white to white (neutral) and black to black (hot). However, when I ...
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2answers
36 views

Changing out old two wire switch to new three wire grounded switch

I am trying to install a modern plug switch in kitchen to combine light and plug in. To a old two wire single pole switch with no ground.
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1answer
65 views

Consumer unit tripping and hard to reset

I had a power cut this morning. After a lot of experimentation, it seems to be related to the washing machine. The thing that confuses me is that when we power the washing machine the master circuit ...
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1answer
54 views

How to compute minimum bend radious of NM wire?

The general rule for computing the minimum band radious states "8 x the overall cable diameter" for single or multiple conductor cables - no metallic shielding. What does the "overall ...
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1answer
50 views

How to enter surface-mount main panel from back w/ a 1/0 Al SER cable?

I need to bring a 1/0-1/0-1/0-2 AL SE cable from a 2x4 wall into the back of the main service panel (it is a new subpanel feeder). The main service panel is surface-mounted on the outsde, on the ...
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2answers
339 views

Trying to place an outlet plate flat to the wall

My wife bought a wall switch/outlet plate, and I immediately realized that normal plates are convex, a bit of gap for the screws holding the outlets to the electrical box. I am thinking I can leave ...
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1answer
47 views

Main Electric Service Panel - Pull Wire

Have square D service Panel and has QO breaker in it. I am excited to pull wire through service Panel. I have lots of space left for new breaker at the bottom of the panel. In the highlighted picture, ...
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1answer
46 views

Exterior light fixture

Exterior light: what do I do with the bare wires after I connect them? Do I connect it to the screw going into the housing on the wall? Or do I just put a wire nut on it the way I did the other two? ...
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1answer
56 views

Control a light turning on from multiple switches, but not off

I want to do something that seems a bit more complex to myself. I want to have 4 switches in my garage that I can use to turn on the garage lights I'll be installing. (Switch on workbench, by the door,...
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1answer
56 views

Running NM Cable In Attic Along Rafters

I'm adding some lighting to the attic and am running wires parallel to rafters. I need to go down the hip rafter and then down another rafter to get to where I need to go. Am I allowed to run the wire ...
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2answers
29 views

Can I use a Leviton MS302-DS switch as a 3-way switch?

I have a harbor freight dust collector and want to have 2 switches in different locations of my garage to be able to turn it on from either location. I have 2 Leviton MS302-DS switches that are motor ...
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6answers
510 views

Junction box partially behind drywall and partially exposed

Let's say I have a 200 amp breaker panel that is flush mount. I want to wire in an EVSE across the garage using conduit. Somehow I need to make that transition for the conduit from behind the ...

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