Questions tagged [wiring]

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

421 questions with no upvoted or accepted answers
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How would I ground an internal ethernet surge protector?

I have a Cat-6 cable running to an external PoE security camera that I'd like to have surge protected, but I'm unsure how to ground the protector. It has a prong coming off that I assume is the ground ...
4
votes
2answers
213 views

Why does my light box have 2 cables for this one switch?

Took down a ceiling fixture and discovered what looks like a possible switch loop, except I don’t understand how the connection gets completed with the current set up. Basically, 2 lines coming into ...
4
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4answers
870 views

What is the proper way to convert a pair of three-way (SPDT) switches into a single two-way (SPST) switch?

I'm in the process of replacing some of the light switches in my house with smart switches, Wemo Light Switches in this case. I've had no problem with the replacement of my One-way switches (SPST I ...
3
votes
1answer
339 views

Sub panel and ground rod installation: “high differential potential between the ground locations”

We have a dock (fixed-pier) that is about 40 feet from the house, and +100 feet from the main panel. 4-wire (2 hots, 1 grounded neutral, and 1 ground) run to a large junction box at the start of the ...
3
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3answers
2k views

How to replace a light fixture that has a 3-way light switch

Box] I have a light fixture above a stairwell. There are two live switches that control it, one at the bottom of the stairs, one at the top. The wiring is relatively new about 25 years old (all copper,...
3
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3answers
2k views

What's the “correct” way to install LED drivers for accent lighting?

I want to install LED strip lighting behind crown molding in my office. In my particular install, I'm using 3 strips of SMD 5050 RGBW LEDs, which draw about 72 W per strip. From what I can gather, ...
3
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2answers
201 views

Checking ground current

Background: I had a contractor finishing my basement, and part of that was installing underfloor heating using several heating mats in parallel. It worked initially but soon after it just started ...
3
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1answer
246 views

Install recessed lights and chandelier with 3-way switches

I am remodeling my entry way and dining room to give a more open feel. Existing: 15 Amp breaker 12-2 Feed directly from the box two gang box outside of the kitchen 1 standard switch and 1 three ...
3
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1answer
294 views

How do I install a SensaSwitch on a 3-way circuit?

I recently purchased a SensaSwitch, Manual-ON / Timed-OFF (PDF of instructions) and I cannot install it in such a way that it performs as I desire. I have a switch at the top of my basement stairs and ...
3
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2answers
3k views

How to connect a 3 wire cable to a 2 wire outlet?

I have recently had a conservatory built and want to wire an internal light fixture that has a live and neutral and Earth terminals. I have removed my old security light and I am left with a cable ...
3
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4answers
1k views

GFCI Problem with Three-Way Switch WAS Two Switches Neutrals Only, Switched Hots Not Used

I replaced an old two-prong receptable with a three-prong GFCI (no ground) yesterday. It won't reset. I found out that "downstream" there is a light on the next level down that is controlled by two ...
2
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0answers
34 views

What is the easiest solution to add receptacle along an unfinished, exterior, insulated, basement wall?

I need to add a pair of receptacles along an unfinished, insulated, exterior basement wall. I want the easiest method possible. I have no plans to finish the basement. I need each receptacle to be on ...
2
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0answers
63 views

how to wire GFCI and dual light switch

]My mother live in an older house and has two regular light switches in bathroom. one for light and other for exhaust for the exhaust fan I would like to add an GFCI outlet in place of one of the ...
2
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0answers
103 views

When running crawl space conduit, must the conduit be run through the joist via drilled holes, or can they be attached underneath?

I'm wiring my home for 110V and cat6e(48-0V). There is currently no wiring, just an air tight shell with interior studs exposed. There is a crawl space where I would like to run all of the conduit ...
2
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0answers
56 views

Why do I measure 12VAC on old thermostat wires?

I'm installing a nest thermostat in my house - it's the UK version with a heatlink. I have successfully wired the heat link into my combi-boiler, disconnecting two existing wires in the process. I ...
2
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1answer
117 views

Black paste inside wire nuts?

I have read that older houses may have aluminum wiring, and to splice copper to it there is a less than desirable method of purple wire nuts using corrosion inhibitor paste. My house was built in ...
2
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0answers
84 views

Junction Box Blank Cover in HVAC Duct

I am starting a bathroom remodel second story that requires a length of NM wire to be lengthened by a few feet. I realize I can't do this hidden in a wall or floor and need this done in accessible ...
2
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0answers
53 views

Can I split a large amp 240 circuit into two lower amp 240 circuits?

I just bought a house. It has a double oven unit installed on a 50 amp 240V circuit. I need to replace this unit with two separate units, one 30 amp, 240V and the other 20 amp, 240V. Can I split ...
2
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0answers
90 views

Wiring light switches in two rooms help

I am changing some wiring in two rooms of my house. Room 1 had two switches that controlled an outlet. We have since taken one of those switches and installed a ceiling light. The other switch ...
2
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0answers
94 views

How can I provide up to 70V AC power to a sliding glass door panel?

I'm renovating a master bath and the entire wall between the bath and the master is completely removed. The view and light that this provides is very nice so I'm considering putting in glass instead ...
2
votes
2answers
83 views

What type cable and size should I use for my shop?

My existing overhead wire is triplex 1/0, 2 insulated and one bare. The power company is out of the picture because they do not provide service to a customer supplied pole. My existing wire is at ...
2
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0answers
56 views

Replacing a motherboard on a Carrier 8000VS Furnace

Hi guys, I am trying to finalize the wiring of my new carrier motherboard. I have about four more wires to connect and the new motherboard is slightly different than the old one. The pictures I’ve ...
2
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0answers
42 views

Connecting network gear directly to electrical line

I’m installing multiple PoE networking switches on a pier, but I’m not sure the best route for plugging them in. There are only a few existing plugs on the dock but they aren’t located near where ...
2
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0answers
98 views

Wanting to make existing 2-wire 220V outlet a 4-wire one

(Located in the USA) I've inherited a 220V (or 240V?) circuit which is just capped off inside a junction box. It's hooked up to a 30A breaker, and seems fine, except that it's only a 3-wire run--no ...
2
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0answers
110 views

Indicator light flickering on combination switch/outlet

I've looked at 3 furnaces plugged into combination switch/outlets that have indicator lights, but no GFCI switches. On just one switch, the indicator light is flickering unevenly. Is it trying to tell ...
2
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4answers
264 views

Is voltage on the ground conductor a sign of short circuit?

When we touch the ground wire(!) on some of our power outlets, the tester lights up. Not as bright as when touching the live wire and the circuit breaker doesn't tip, but there is definitely "...
2
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0answers
360 views

Smoke Detector wiring - impacted by 2 breakers?

dig if you will the picture of one of my smoke detectors and the curious (for me) wiring. Actually, I've taken many pictures, but each is just a mess and I think will make it harder. We have ~7 ...
2
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0answers
589 views

Can stranded wire in a crimp (bootlace) ferrule be used in lieu of a pigtail to terminate to devices that require solid wire?

As we all know, some device termination types do not accept stranded wire (14-10AWG), which is quite a shame on a conduit job or when using stranded THHN for pigtailing. However, in some applications,...
2
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1answer
2k views

Use 6-30 plug on 14-50 outlet

I am planning to install a NEMA 14-50 outlet in my garage on a 40A breaker (Romex 8/3 cable from breaker to outlet) for use with an electric car charger. The charger will charge my wife's car in the ...
2
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0answers
641 views

convert three way circuit to two single pole circuits

I have two three way switches within arms reach of each other for the overhead lamp in a small hallway. I want to take them out and replace them with single poles the second to operate under cabinet ...
2
votes
1answer
2k views

Wiring a ceiling fan with light to a box which has 3 cables running into it(white, black, red, and bare)

i am replacing a light fixture with a fan. I already installed the fan rated box but the box has 3 sets of wires coming in. 2 of the sets have a red wire and all three have a black, white, and copper ...
2
votes
1answer
776 views

Want to add a WIFI thermostat, but no 'C' wire… only 2 wires to each thermo

i have a 5 zone radiant floor, oil fired heating system. Each thermostat only has 2 wires running to it. i have a TACO SR506 switching relay that receives the wires from each thermostat and controls ...
2
votes
2answers
4k views

Wiring a fan/light/Bluetooth fixture

I am wiring a fan with a white/black/green wires. The cable going to the switch box to fan has an extra red wire that was twisted with the black. I capped the red and connected the matched colors to ...
2
votes
1answer
530 views

New Thermostat installed but compressor comes on immediately

I have a new Insteon Thermostat that I'm using to replace my prior Honeywell t-stat. This is installed to a relatively new HVAC system (both AC and Heat) that DOES have a "c" wire. I've attached the ...
2
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0answers
2k views

My appliances are shocking me…but only me

The metal parts of the fridge, stove, and sink are shocking me. However, when my husband touches them, he gets nothing. I've also found that the metal gates and latches leading to the pastures are ...
2
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0answers
67 views

Replaced a Heat/Light/Vent with a vent only. There does not seem to be a hot wire:

The three gang box previously had a HLV combined switch plus a switch that operated a separate light. Stupidly, I removed and discarded the switches and units (light and HLV) without studying the ...
2
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0answers
2k views

Why does my new lamp hum while turned off?

I just changed the ceiling lamp I had in my kitchen, from an ancient one (probably more than 20+ years old) to new and beautiful hanging one. I also switched from the old incandescent bulb to a CFL. ...
2
votes
1answer
113 views

New thermostat: How to wire it?

My old air conditioner thermostat broke down, so I bought a new one. But when it arrived, I was horrified to discover that the terminal of the wires were not named the same. Both thermostats have ...
1
vote
2answers
40 views

Adding a new light fixture to existing circuit without destroying the walls/ceiling

This may be a stupid question, but is there any way to add a light fixture at the top of the staircase without directly wiring it to the existing light fixture at the bottom of the staircase? There ...
1
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0answers
22 views

Canadian (Alberta) Residential Electrical Code

Is there a homeowners version of the current electrical code for residential wiring in Alberta available at no cost? I’m renovating my kitchen and would be helpful to know the many changes and ...
1
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2answers
62 views

Need Help Wiring Replacement Ceiling Fan

I hadn't run into any trouble with replacing the ceiling fans in my older home (~21 years old) until today when I attempted to swap out the ceiling fan in our bonus room. Thinking this would be a ...
1
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0answers
72 views

Why is hot-ground reading a different voltage from neutral-ground?

I recently replaced a 20a simplex receptacle with a new 20a simplex Decora receptacle. I checked everything at the new 20a receptacle with a multimeter and here are the results: Power on Hot to ...
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0answers
46 views

Does metal conduit need to be continuous to function as the ground conductor?

I'm trying to add a ground to the existing garage sub panel (240v, three conductor) while burying the elevated wires. I hope to use rigid steel conduit as the ground, but can't run it back to the main ...
1
vote
2answers
154 views

Custom lamp project for a non-engineer - Help needed

I'm trying to build custom 3 bulb lamp. About me: Biochemistry major so very far from electrical but I've built RC plane models before so I know soldering and stuff. Nothing really about electrical ...
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0answers
30 views

Grounding dilemma

I'm replacing a standard 3-way toggle w/ a wifi-based 3-way switch and need a good ground connection to complete the wiring. There is a ground w/in the plastic junction box but it is a bundle that ...
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0answers
52 views

Replacing a cable in an electrical panel: Need hints and names

Previous owner left a chunk of 3 line triplex(2 insulated + ground) 4 ga aluminum into the main panel, hooked it up to a 50A breaker, and left the other end floating free in the rafter space of our ...
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0answers
45 views

3 cables into a 2 switch box

My breaker keeps tripping because of this wiring and/or faulty switches and now with a new switch, my ceiling fan won’t turn but the light still works and it still trips. I’m trying to figure out how ...
1
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0answers
58 views

Running electrical on outside of house

I need to convert an outlet to 230V 15A for a window AC. Unfortunately the outlet is on the second floor, outside wall of a solid brick house. I’m considering punching a hole through the back of the ...
1
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0answers
36 views

Splicing or Extending 2.5mm2 Twin & Earth (UK)

I am trying to install a WiFi connected smart switch to control a ceiling light. The wall box is too shallow to accommodate this, so I need to install it inline. To do this, I need to move the circuit ...
1
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0answers
27 views

Separate Thermostats for Heating and A/C

I recently purchased a vacation home that has two thermostats for a forced hot air gas furnace and a separate A/C unit that shares ductwork. The A/C also cools better when both the A/C and furnace fan ...