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What voltage are electrical lines coming into a house?
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Answered 2005-04-20 15:32:57
For the USA its 240V (120V on each line/phase).
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What voltage are electrical lines coming into a house in England?
The electrical lines to a typical house in the UK are 230 V 50 Hz.
What is EHV lines?
EHV lines are type of electrical lines commonly used for experimentation in physics. They stand for 'Extra High Voltage' lines.
What is use of substaion near grid station?
A power substation is used to reduce the voltage from high voltage power lines to a voltage that is less dangerous that you can use in a house for example. It is less costly to transmit electrical energy over long distances using high voltage.
Where does electricity travel on to get from the power plant to the people's houses?
It has to come along wires all the way. Some of the wires may be high-voltage overhead lines on pylons, or medium voltage lines on wooden poles, or low voltage (e.g. 240 v) for delivery to the house, which might be fed from overhead or underground cables.
Does AC have to be converted to DC in order to bury high voltage power lines?
No, there are many instances where AC high voltage lines are installed underground. Where an industrial building has an electrical vault within the building, the high voltage is brought to it using high voltage cables in conduit to supply the vault with primary voltage. These types of installations are usually only used where the customer uses a high volume of electrical power.
Why are there sometimes balls on high voltage electrical wires?
The balls on some power lines are required so that airplane pilots will be able to avoid flying into the lines.
Are high voltage transmission lines 60Hz like the wiring in a house?
Yes, the frequency stays the same. Only the voltage and current change as the voltage is stepped down.
Do power lines carry electromagnetic waves?
The power lines carry alternating electrical current and voltage. This produces an electrical and magnetic field around the wire. Some of the electrical energy thus escapes in the form of electromagnetic radiation. The wires do not carry the radiation. They radiate it because of the electrical power flowing in them.
Can you use a gas water heater of a standard house in a mobile home?
The water heater will work if it will fit dimensionally. The proper electrical voltage and amperage are necessary if it is electric . Propane or natural gas will also work with the proper supply lines .
What is hissing noise on electrical transmission line?
due to corona loss at high voltage on line and insulation failoure beween conductors.these is see in high voltage lines i.e, means >400 Kv.
Distance between ehv lines?
The distance between high voltage lines is governed by either a switching impulse voltage or lightning impulse voltage. The distance between lines, or lines and tower must have a high enough dielectric strength to avoid flashover at these voltage. Air can withstand a voltage of 3kv/mm.
How are electrical insulators made?
The insulators used on high tension transmission lines and on distribution lines are made of either glass or ceramic shaped in a mold. On high tension lines several are typically stacked to create a compound insulator that can avoid arcing at the voltage on the lines.
What does electrical systems work entail?
low voltage applications, such as building alarm systems, automatic building controls, and voice-data communications lines
Why can animals sit on high voltage electrical lines?
Animals can sit on HIGH VOLTAGE Electrical lines. It does not give any current to animals or birds unless the circuit is complete. It is essentlal to complete the electrical circuits for making any current. When bird sit on the line / conductor the only legs of birds touched single line and it does not touch the other two conductors below upper line/conducotr , which does not make circiuit complete and birds / animals does not feel current.
What are line voltage and phase voltage?
The voltage in the middle of line and impartial is known as the stage voltage. where the voltage between two lines called the line voltage.
Difference between electrical network and electrical circuit?
An electrical network is an interconnection of electrical elements such as resistors, inductors, capacitors, transmission lines, voltage sources, current sources, and switches. An electrical circuit is a network that has a closed loop, giving a return path for the current. A network is a connection of two or more components, and may not necessarily be a circuit.
What causes electrocution?
Common sources of electric shock muscle, nerve, tissue and skin injuries, or electrocution, are:lightningmachineryelectric cordselectrical wiringelectrical outletselectric applianceshigh-voltage power lines
Are power lines electrical energy?
No, but they do carry electrical energy.
Examples of parallel lines?
Railway tracks electrical lines
How does energy get to a power plant to a school?
The power plant has generators that convert power from a mechanical source, such as a heat engine or hydroelectric turbine, into electrical energy. To deliver the electrical energy long distances requires a network of very long transmission lines. The long distances requires power at a very high voltage. Voltage, or "electromotive force" is the force that pushes the electrical current through the wires. The high voltage is produced by a transformer in an electrical substation that is located very close to the power plant. The transformer changes the voltage produced by the gnerator, which is usually about 15,000 volts, to hundreds of thousands of volts. The electricity is transmitted, hundreds, even thousands of miles on high voltage transmission power lines. Near the school, the transmission line is connected to another substation. This substation has a transformer that changes the hundreds of thoursands of volts of the transmission line down to a much lower voltage, usually below 20,000 volts. The lower voltage power is delivered to customers on electrical distribution lines, owned by the local utility company. Near the school is another transformer. This transformer changes the distribution voltage to a much lower voltage for direct use inside the school. The voltage of the power used in the school is usually between 120 volts and 480 volts, and there is usually other transformers in the school to change the electrical energy to voltages specifically required for ventilation motors, lights, computers, copiers, kitchen appliances, etc.
What pushes electricity through the wire?
Difference of potential (voltage) causes current to flow as long as there is a complete path (circuit) for it to flow along. Voltage can be thought of as electrical pressure along the same lines as water pressure. If there is a competed path the electrical 'pressure'will push the electrons from the higher potention (pressure) to the lower potential (pressure).
How far do electrical fields extend from high voltage cables ie how close should you live to electrical power lines?
Technically, the intensity of the electromagnetic fields radiated from electrical transmission lines becomes smaller as the distance from the cable increases, but it never reaches zero. Despite many studies made on the effects of magnetic fields, there is no definitive guide as to what harmful effects high voltage fields have on humans or other living things. The level of risk in being exposed to these fields cannot be categorically stated.
How can we reduce electricity loss during transmission lines?
Increase the voltage in the lines.
What are the energy transformations nuclear energy goes through to become household electricity?
Nuclear energy creates heat in the fuel, which is transferred to the reactor coolant and then used to produce steam. This is used in a steam turbine to provide mechanical energy which then produces electrical energy in the generator. This is then transferred in high voltage grid lines and transformed down to your house voltage in a local transformer
What is the difference between power limited and power non-limited electrical circuits?
In wiring or cabling, high voltage lines and low voltage lines should be separately installed. High voltage lines which carry AC 120V/208V/277V/480V should be installed in one conduit, and low voltage lines which carry DC 12V/24V/48V and non-current carrying lines should be installed in another separated conduit. It is one of the strict requirement of NEC. When AC 120V wires and DC 12V wires are laid inside of one rack, they should have spaces more than 6 inches between them. - dona
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