Questions tagged [voltage]

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1
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1answer
125 views

Can I use a 240/120 transformer and adapter cable to connect a generator to my house?

Tornado took out power around here for a good while. Parents aren't here and I'm stuck with the task of hooking up a generator. I'm not savvy with this stuff very much at all. Here's the issue. The ...
9
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3answers
2k views

Can I replace a bulb with one with more watt?

I have a lamp (from IKEA) that had a light bulb 3W 200lm 67lm/W 26mA I bought a light bulb that says 4W=35W 230LM Can I replace with that light bulb or even with higher watt? I mean is the only ...
1
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1answer
438 views

Lights go dim with a moderate load imposed: how to troubleshoot?

I just bought a house built in 1964 which features switches and outlets that have the "strip wire and insert into hole" connection method. In one of the rooms, turning on a ~500 watt load ...
2
votes
1answer
125 views

Why do I measure high and low voltage on a shop panel circuit?

I have power running to my shop, shop panel has a 100 amp main breaker, voltage on one leg reads 109 volts. The other shows less than 100 volts. If I turn 1 20 amp breaker on in the panel I then read ...
1
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2answers
148 views

How to determine if a light bulb is compatible with a lamp?

All my life I was laboring under the misconception that if a bulb fits in a socket, it will also work well. Recently, a line lamp in our bathroom stopped working, so I bought a brand new LED line lamp ...
0
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0answers
37 views

Why does non-contact voltage tester chirp when it touches my skin?

I am getting a voltage tester (70v-1000 vac) go off (chirps once) when it touches my arm. If I move it up and down my arm it will chirp every few inches. Is this normal? And no, I'm not sitting in an ...
0
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3answers
96 views

How to protect electric appliances from high or low voltage or short circuit or any other electricity related thing

I have so many electric appliances installed at my home(India). I have been recently reading in newspapers that some electric appliance are getting affected due to voltage or short circuit issues. I ...
0
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1answer
60 views

What is this wire in switch for?

So I’m working on an arduino project for switching my light with it, but in my switch, there are 2 cables (if I count in/out as one) and I don’t know what the second is. When I meassure voltage ...
5
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2answers
16k views

Why am I measuring 60v at some outlets?

The house I bought a couple years ago had a couple outlets in a small room in the basement that didn't work. Now I'm troubleshooting them. It's a finished basement so I can't tear down walls. There's ...
2
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4answers
1k views

Strange Voltage at Receptacle

One of my home's 120v circuits measures: Line to neutral = 120v Line to ground = 52v Ground to neutral = 45v What should I look for to resolve this issue?
6
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5answers
2k views

Is it possible to downconvert 30A/240V to 15A/110V by replacing a circuit breaker?

I recently moved into a new apartment with... "curious" wiring. There is a single 15 amp/110 volt outlet that is directly wired to a 30 amp / 240v breaker. I suspect there used to be a drier ...
0
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3answers
93 views

Voltage between neutral line and soil?

I am feeling unpleasant electric shock when I touch metal water pipes or faucets. This happens also when the main breaker is off (L1, L2 and L3). This rules out my appliances (hot water boiler and etc....
1
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1answer
99 views

Voltage tester 220v

Will a 110v pen tester pick up or test a 220v socket? It doesn't sound or light up near the 220 socket. I want to make sure it works before I replace it.
1
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2answers
80 views

House's Power Cycling Between High and Low Voltage [duplicate]

Around 2am I noticed the voltage in my house changing. The only reason I noticed was because my bedside fan kept speeding up and slowing down. Usually my house has around 122v, so I got a meter and ...
0
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0answers
21 views

Switch wiring - strange multimeter readings

I'm about to replace a dimmer switch in my house (UK - Single Phase) and every wire in the backbox is red, while I've tested and identified each (live in, live out, neutral in, neutral out, neutral to ...
0
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0answers
45 views

Dryer voltage not right

My dryer won’t start. I’ve had the timer switch replaced and still nothing. The outlet in the wall reads the 240/120/120 from both the socket itself and the backside. The plug for the dryer is reading ...
0
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1answer
38 views

Can voltage fluctuation cause heater thermostat to flare up?

As the title says can voltage fluctuation cause thermostats to flare up? I noticed light (led bulbs) would randomly flicker (but its not consistent) It happens at most twice a day, or once every few ...
0
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1answer
110 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 ...
0
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0answers
103 views

Are my calculations for stepping down from 240v to 208v correct?

I just bought a used UPS and didn't realize I bought 208v and not the 240v version. So I'm looking for a buck-boost transformer. Both input and output are at 30amps. I think I've done the math right. ...
0
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0answers
20 views

Ceiling Fan wiring - odd voltage measurements

I replaced a ceiling fan because the fan motor was not working, but the lights were. I ​would have assumed I would wire the Red (R) wire to the black and blue ceiling fan wires and the White (W) wire ...
0
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2answers
111 views

Measuring AC Voltage Behind Light Switch

This is more of a theoretical question and not something I'm needing to do. I understand the following, please correct me if I'm wrong; Multimeter only measures the potential difference so To measure ...
-1
votes
1answer
55 views

Can replacing a low voltage wire actually make the air handler blower blow more air?

Our system stopped cooling, it is 11 months old. The service tech found a low voltage wire running from the handler to the outside unit bad. He showed me the wire was not connected but dead now, after ...
1
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1answer
99 views

Power issues in out-building sub panel - What's the best way to repair?

I am having electrical issues in my out-building shop. I think I might have an idea of what is wrong, but I want to hear others opinions, and I also want to know the best method of repair. I will try ...
0
votes
1answer
70 views

How to connect 2 hot wire to a 2 pole MCB?

how can i connect 2 hot wires to a 2 pole MCB? What is the output of 2 pole MCB ? Will it be the same as 2 hot wire output or can connect to a LIVE and NEUTRAL terminal?
1
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2answers
255 views

What explains a sudden voltage drop to laundry room?

We have a 20 amp circuit running from the service panel to our laundry room, where we have a gas washer and dryer on 120v. We've not had any problems with the electrical system in our house since we ...
0
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3answers
386 views

What size wire for a 60 AMP panel 400 feet away?

We are putting a sign and several lights in our parking lot and need a 60 amp panel to be located 400 feet from the breaker box. Allowing for the voltage drop, what size wire do we need to run? Thank ...
0
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0answers
38 views

Ceiling light still dimly lit with switch off

My ceiling light remains dimly lit after the switch is turned off. When the switch is on, the light is bright like normal, but when the switch is turned off, the light is still on slightly. I replaced ...
-1
votes
1answer
57 views

Problem with stair switching for light (3 way)

I just did an electrical survey of my house receptacles and fixtures. All voltages are around 119.5V except one. On the light that is controlled by 2 switches (ie on 2 different levels of the house) ...
1
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4answers
208 views

Solar panels: converter has AC Voltage out of range

Since about six months our house has solar panels. There's a converter (4600 W) with two inputs hooked up to 6 and 7 solar panels respectively of 325 watt peak performance. Overall this setup runs ...
-1
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2answers
139 views

Oven's heating element stopped working - is the condition of the wiring terminals ok?

My Oven (Westinghouse Freestyle) has stopped heating up properly. The problem happened when the safety-switch connected to the switch-box was triggered, not sure of the cause though it was raining ...
1
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1answer
54 views

Safe to plug a travel adapter into a power strip?

I've got a dual voltage (110/220V) lamp that has a European plug and want to plug it into a North American outlet that has a power strip plugged into it. So I will have to use a plug adapter (not ...
-1
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1answer
97 views

Why am I seeing about a 50V drop at Load Line into a light fixture box?

Working on a bathroom renovation, moving junction box (JB) that doubles as light fixture (to be centered), there is a 4-wire cable which receives power from another line in that JB. The neutral wire ...
5
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3answers
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 ...
0
votes
1answer
61 views

Voltage live to neutral low

I'm in the uk on 240V. I've got an extractor fan that isn't working. What I find is that at the fan and the switch that operates it, live to neutral is 160V. Ground to live reads 240 and ground to ...
1
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1answer
90 views

Voltage still present after breaker is off

My home built in 2016 has a pre-wired car charger line in the garage, I am trying to install a NEMA 14-50 outlet there. Before I started, first thing I did was turning off the breaker to the car ...
7
votes
2answers
638 views

Why bother referencing neutral to ground in residential transformer?

I'm going to list the 3 scenarios for electrocution I can think up for both a residential transformer with grounded neutral and an isolated transformer. I find that the grounded neutral transformer ...
1
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1answer
282 views

What size and type of wire should I use for a 1000 ft run to create an standard outdoor 120 volt outlet?

I'm looking for advice on what type of wire and size of wire to use to create an outdoor 120 volt outlet that is 1000 feet away from my home. The device I'm going to plug in will pull a maximum of 80 ...
5
votes
2answers
1k views

If using an old 240v cable to make two 120v circuits, is there a risk of overheating the shared neutral return?

I've seen discussions of using an old 240V wire (two hots, a neutral, and a ground) and reconfiguring it to have two 120V circuits. As an example, if it is a 20A cable, you could have two 20A circuits,...
0
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0answers
78 views

Electrical voltage is between box and wire, not between hot and neutral. Not OK?

I live in a house that has significant issues. Here's the current one I'm wondering about. This electrical outlet box seems to be "live". There is 120v voltage running between one of the ...
2
votes
1answer
602 views

How do I convert an old Satchwell/Sunvic TLX2203 thermostat wiring to line voltage wiring?

I have an old Satchwell/Sunvic TLX2203 thermostat. It has 3 wires connected to it which look to be: switched live (green) live (red) neutral (black) (at least I think that's the case) I would like ...
1
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1answer
83 views

Why does my digital multimeter report small voltage between a battery and unattached metal and my fingers?

I was performing some 12 volt DC voltage drop tests and I got a reading that I did not understand. Hopefully someone here can satisfy my curiosity. I had the positive lead on a 12 volt battery ...
0
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0answers
29 views

2 outlets not working, breaker is not bad

We have 2 outlets (one on each side of the wall) that stopped working suddenly. All other outlets and switches on the same breaker (before and after these 2 in the chain) are working fine. We have ...
2
votes
1answer
233 views

What are some reasons that my 240V clothes dryer connection (outlet) suddently only has 18V per side?

My clothes dryer suddenly stopped working and I wasn't sure if it was my (new) dryer or the power outlet. Things I Tried I checked the circuit breaker and reset it but the dryer still didn't work. I ...
0
votes
3answers
60 views

Getting various non-zero voltages between neutral and ground on daisy-chained extension cords

Backstory: I am running power (temporarily) to a workshop through a 25' and a 50' extension cords. I was worried about the voltage drop over this length so I was measuring voltage to see if it ...
0
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1answer
692 views

Voltage tester indicates the wall has an electical charge

My Dad installed a bar on the wall, and put his voltage tester to the bar, and it lit up red. Then he tested the wall ( with the voltage tester ), and a couple of adjacent walls - 2 red, one not. He ...
2
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2answers
62 views

how do i troubleshoot a substantial AC volatge neutral to ground?

I've been having some problems with my computers at home. Today I decided to check voltage from the receptacles. I have 120VAC hot to Neutral, as I would expect, but then I have 50VAC Hot to GND, and ...
1
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0answers
70 views

GFCI seding low voltage to downstream devices

We just purchased a cabin and suddenly several lights stopped working. Initially I thought it was just the light over the kitchen sink. So I replaced the bulb and it still didn't work. I then checked ...
1
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1answer
22 views

Low light illumination on ceiling fan

I have a 15 yr old Hampton Bay ceiling fan with light fixture and remote. Worked well when we bought home for a few years but suddenly the bulbs in the 3 bulb fixture are extremely dim. The bulbs ...
2
votes
1answer
1k views

Three way switch circuit leaking voltage

I have a hallway light fixture controlled by three switches (panel -> 3 way -> 4 way -> 3 way -> fixture). Lights in this fixture routinely burn out within 6 months (incandescent, cfl and ...
10
votes
4answers
37k views

Confusion over 220 and 230 volt outlets

We have a 220 outlet for our A/C. We are shopping for a new unit and all I am see is 230 volts on the units. Will we have to rewire with a new outlet for a new A/C?