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The loads may be unbalanced.

In North America, the transformer has 3 wires coming from it into the house. The neutral wire is the center tap of the transformer. The other two wires are each 120 volts, 180 degrees out of phase. So if 220 volts is needed, the power is taken from those two 120 volt wires.

If only 120 volts is needed, just one of those wires is used along with the neutral wire. The house wiring should alow the loads to be balanced between the two 120 volt wires, with the neutral as a common. If the loads are not balanced, low voltage on the heavily loaded side could result.

On homes equipped with two cartridge fuses supplying 220 volts to the building, with each fuse connected to one of the two 110 circuits, if one of the cartridge fuses blows while a 220 volt load is running (such as a range or drier), the 110 volt circuit on the side with the blown fuse will draw current through the 220 volt appliance, resulting in reduced voltage to the 110 volt loads on that side because of the voltage drop across the 220 volt appliance. Turning up the heat control on a range top element can cause lights on the affected side to go from dim to full brightness.

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โˆ™ 2009-11-23 17:29:37
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Q: What would cause half the house to have low voltage in the outlets and dim lights while the other half of the house is fine?
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Related Questions

What is the normal voltage of house electricty in the United States?

120 volts to most outlets and all lights. Dryer, stove, A/C, water heater, and some other things require 240 volts.

What is the normal voltage of house clectricity in the US?

120v or 240v. 120v is one leg of the main panel, and 240 is two legs of the main panel. 120v is lights,outlets. 240v, dryer,stove.

If a 1950 era house has 10 gauge wiring for lights and outlets can you safely extend wiring with 12-2 for additional lights and outlets?

You can provided the protecting breaker for the circuit is 20 Amps or less.

What is the normal voltage of house electricity in the united state?

All lights and wall outlets are 120 volts except appliances that require 240 volts such as dryer, water heater, furnace, A/C, oven, cooktop, etc.

What is an example of a parallel circuit?

Most Xmas lights nowadays are wired in parallel. The reason being if one bulb fails the remaining lights stay on. ================================== All of the lights in your house are in parallel. All of the wall-outlets in your house are in parallel. All of the lights, wall outlets, and everything plugged into the wall, are all in parallel. They're also most likely in parallel with everything in the houses of your neighbors on both sides of your house.

What Voltage type are in outlets at home?

Most outlets in a house in the United States are 120 vac (volts alternating current). There are some that are 240 vac for dryers, ranges and other misc. appliances.

Is the 120V outlet a dedicated circuit?

It depends on the way your house or business is wired. Usually not. Usually a circuit feeds several lights or outlets.

How does a house have series circuit?

No devices in residential wiring are in series. The only exceptions are switches, which are in series with the devices (lights, outlets, etc) that they control.

Where is an alternating current used?

The electrical power that the public utility company delivers to you via the wall outlets in your house is supplied in the form of alternating voltage, which produces an alternating current through any device you plug into one of the outlets.

What is the peak to peak voltage for the AC line voltage in normal outlets of your house?

Peak - neutral for 120 volts RMS is 169 volts, or 120 * sqrt(2) Peak to peak will be 2 x this value, or 339 volts.

How many wall outlets are in a house?

it i probably depends on how big the house is

Why do some lights go off in your house when you turn on too many appliances?

In a well designed house the lights are not connected to the same circuit as an appliance. If by going out you are saying that a breaker trips, then your appliances and lights combined are exceeding the rating of the breaker. You either need to rewire and balance the loads better or plug high current appliances into different outlets on another breaker. If you are not tripping breakers, but lights are just dimming you have a bigger problem with inadequate current supplying your house.

How much rating of voltage and current is required for a house?

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Why does your house voltage change?

Loading will cause small voltage fluctuations on the system supplying voltage to your house. Also, the system configuration can change, so you may be supplied from one location today, but switched to a different location tomorrow to allow maintenance to be done without you losing power.

When was Kill the House Lights created?

Kill the House Lights was created in 1997.

Why are lights in a house connected in a parallel circuit?

For homes we need voltage of 230 In a parallel circuit the current divides and voltages remains constant and also for switching operation

Difference between battery voltage and electircal outlet voltage?

One is AC and the other is DC. AC- alternating current is used in electrical outlets DC- direct current is used in batteries. An electrical outlet in your house would have 120 volts (the ones you use most, your tv, lights, radio are plugged into) or 240 volts (the ones your stove and dryer plug into). A battery voltage varies widely: AA & AAA batteries have 1.5 volts, a 9 volt battery has 9 volts, your car battery has 12 volts.

2 What is the normal voltage of house electricity in the US?

The normal voltage of house electricity in the United States is 110V

What is the meaning of house wiring?

In general, it's everything that starts at the meter base and goes to the lights or electrical outlets. House wiring is typically behind walls, under floors or in the attic so it's the wiring that you don't typically see, but use it every day.

Just discovered your house has aluminum wiring and you changed all the outlets to new white is there immediate danger?

If they're not CO/ALR outlets, there is.

How can you make voltage?

Voltage is readily available; in the US, the standard voltage of house current is 120v. If you require a different voltage, you can alter voltage by using a transformer.

How much voltage to pass in house?

In India we are using the voltage rating of 230 V. And this voltage is RMS value of the voltage. Or we can say 325 voltage of average voltage should be given to the house or end users. Because average voltage of 325(may be 330 V) is equal to rms value of 230

Can you power house off car battery?

No, batteries put out DC voltage and you home runs on AC voltage. Even with a converter there is only enough power in a battery to run a few lights, TV, or a small appliance for a very short period of time.

What is the voltage of line voltage regularly running through a house?

clark kent

Do cell phones charge faster using a car cigarette lighter or in the house?

House wall outlets tend to work faster. But if you have an extension, with say five more outlets, those work a bit slower.