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The bird is both feet on a wire, the potential of the high-voltage wire is very high, but the potential of the transmission line at this end is about the same as the potential at that end, the voltage added to the two ends of the wire in the transmission line is not large, so as to ensure that the electrical energy is rarely lost on the wire, with the wire as a resistance, because the wire is hundreds of kilometers or even thousands of kilometers long, and the voltage added at both ends of the wire is hundreds of volts, calculate the distance of the bird's feet, the potential difference between the bird's feet can electrocute an ant has to put a question mark, we say that the high-voltage electricity is tens of thousands of volts that is the potential of the wireWhy are people electrocuted? Standing on the iron tower, the iron tower is connected to the ground, so it is like connecting people and the ground, and the electric potential of the ground is zero. Then the potential difference between the wire and the ground is the potential of the wire, isn't it normal to electrocute people?
Another note: high-voltage wires have no insulation, and whoever touches them is unlucky.
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No, because the voltage difference between the two claws of a bird is negligible and it will not electrocute unless it has one paw on the leaky wire and one paw touches the ground, which is 100% electrocutive.
Then I don't know why, maybe there is some dangerous aura around.
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The high-voltage wire generally does not reach the bird, except that the bird is big enough to step on a wire and electrocute it.
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Generally, the electricity is not available, because the bird's feet are very far apart, and the voltage is very weak, unless the leakage electrocutes the bird.
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Naturally, the potential difference between the two claws is very small, as has been mentioned in high school physics.
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No, the bird's talons are insulators and do not conduct electricity.
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UHV will often see dead birds under the power lines.
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Normally not, otherwise on a sunny day, we wouldn't see a row of birds chirping on the wires when we look up.
What is the reason why birds will not be electrocuted if they come into direct contact with power lines? Electric shock refers to injury or death caused by an electric shock. If the bird on the wire is not electrocuted, it means that they have not been struck by electricity. Essentially, this means that electricity is able to pass through the birds without harming them.
But what is the reason why birds are not electrocuted? In simple words, electricity works by the flow of electrons through a conductor。If there is a bird on the wire that has not received an electric shock, it means that the bird is not a good conductor of electricity.
This means that birds do not allow electricity to flow from the wires into their bodies.
How does a bird on a wire do it? The reason why birds can't be electrocuted by wires: they are not good conductors.
Birds are able to sit on power lines.
because the current essentially ignores the presence of the bird and continues to pass through the wires rather than through the bird's body. The bird's body is not a good conductor of electricity.
Electricity, similar to water, flows using as little resistance as possible. In a power line, an electric current flows along a copper wire. Copper is an excellent conductor of electricity because it allows electric current to flow easily along its surface.
Birds, on the other hand, are made up of cells and tissues. These cells and tissues do not provide power in the wires and travel more easily than existing routes. Because the bird's body is not a good conductor of electricity, electricity essentially ignores the bird on the wire and continues to propagate along the copper wire to its destination.
In fact, if our hands are suspended from the wire, and there are no other grounded objects around, humans will not be shocked by the wire. But it's almost impossible.
Shocking SituationWhile birds on the wires are inherently safe and not in real danger, they won't be so lucky if they happen to come into contact with the wires and some other object at the same time. If the second object is a ground wire.
or a second wire with another voltage, then the voltage difference causes the current to flow through the bird between the two wires.
Electricity flows from a place of high voltage to a low voltage, just as water flows from a high altitude to a low altitude.
A bird or any living being that comes into contact with a wire (electricity from a high voltage to a low voltage) and touches a grounded metal object (where there is no voltage) creates a path that allows the current to pass through that body and into a place where there is no voltage. When an electric current passes through the body in this way, an electric shock occurs and the bird dies.
Why Birds Inhabit Power Lines Birds perch to rest, sleep, dress themselves and feed. Due to flexor tendons.
With a strong locking effect, birds can sleep on branches and wires without falling off.
Perching in hard-to-reach places to sleep helps protect birds from predators when they are vulnerable. For birds, artificial high-voltage wires.
e.g. power cords) are similar in shape to the structures that birds naturally inhabit.
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It will be electrified, because such a bird tower is either dry or conductive. In this way, you will be electrocuted very uncomfortably and let yourself die.
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No, because it is impossible for a bird to land on two lines at the same time, it cannot form a loop, so it will not be electrified.
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It will not be electrified, and only a small part of the current will pass through the bird's body, so it will not cause any harm to the bird in this case, so this is one of the most important reasons why the two types often stand on the high-voltage line.
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No, because the horns of the bird are a kind of insulator, and the bird will not be hit when it falls on the high-voltage power line, but will be safe and sound on it.
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When the bird stands on the high-voltage line, the two legs of the bird are equivalent to parallel on the wire, because the bird is too small in size, and the distance between the legs is very close, so the voltage difference between the bird is very small, and the current flowing through its body is very small, which is not enough to cause harm to the bird.
Before the electrocution, the closed brother mentioned that a certain current should be generated, and there should be a complete circuit to generate the current, which includes the Jingshen fire wire, the neutral line, and the conductor.
The bird has a cuticle on its feet, which acts as an insulating layer.
If the bird touches both the live wire and the neutral wire, it will be electrocuted.
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1. Birds are not electrocuted on high-voltage lines for two reasons:
1) scales grow on the feet of small birds, which have an insulating effect.
2) The bird is standing on a line, there is no loop, there is no continuous current, so the bird will not be electrocuted when it stops on the high-voltage line.
2. Analysis of electric shock mode of high-voltage line:
There are two ways of high-voltage electric shock: high-voltage arc electric shock and step voltage electric shock.
1) High-voltage arc electric shock refers to the electric shock caused by arc discharge caused by a person approaching a high-voltage line (high-voltage charged body). The higher the voltage, the greater the danger to people. The so-called arc discharge refers to:
Due to the high voltage, even if the high-voltage transmission line is not touched, people will see a flash of light (that is, arc light) in the process of approaching, and be knocked down by the high voltage, electrocuted, injured or killed, that is, arc discharge.
2) If a person or livestock stands within 8 10 meters from the landing point of the wire. An electric shock accident may occur, and this electric shock is called a step voltage electric shock. When a person is subjected to a stepping voltage, although the current is along the lower body of the person, from the feet through the legs, crotch and then to the feet and the earth to form a pathway, it does not pass through the vital organs of the human body, it seems to be relatively safe.
But that's not the case! Because when a person is subjected to a higher stride voltage, his feet will cramp and his body will fall to the ground. This not only increases the amount of electrical current acting on the body, but also changes the path of the current through the body, making it entirely possible for it to flow through vital organs such as head to hands or feet.
Experience has proved that after a person falls to the ground, the electric current continues to act in the body for 2 seconds, and this electric shock will be fatal.
3. First aid measures:
When a person perceives a threat from a stepping voltage, he or she should quickly put his feet together or jump out of the danger zone on one or both legs as soon as possible.
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The reason why the bird on the high-voltage line does not die is because the bird is relatively small, and it only touches one of the wires, so the current cannot touch it.
Therefore, the current cannot pass through the birds themselves, but the human beings are relatively large, if they touch the wire, they will fuse the two currents together, so that the child will be short-circuited, and then the current will pass through the person, so we are prone to electric shock, so the human can not touch the high-voltage line, but the bird is not any problem.
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Why can't a bird be electrocuted when standing on a high-voltage line?
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The distance between the two feet of the bird is very small, the stepping voltage is very small, and the current is very, very small, so the electricity does not die.
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Because he had two feet on the wire, he couldn't make an electric current, and if he had two feet on the wire, he would have been electrocuted.
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The bird's two paws are erected on the same wire, transporting a 220,000-volt high-voltage LGJ-shaped steel-core aluminum stranded wire with a cross-sectional area of 95 mm2 and a permissible current of 325 amperes. If the distance between the two paws of the bird is 5 cm, the resistance of this 5 cm wire is only 1 63 10 6 ohms, and the voltage at both ends of the wire is U ir, which will not exceed 5 3 10 3 volts. This is the voltage applied to the bird.
If the resistance of the bird's body is 10,000 ohms, then the current through the bird's body is only 0 53 microamps. The current is weak, so the bird will not be electrocuted.
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If it weren't for a brain teaser, I wouldn't.
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Because the birds didn't pay the electricity bill.
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The bird stands on the wire and only has voltage, but there is no circuit, so it will not be electrocuted.
If a bird standing on a power line grinds its beak on an uninsulated pole or rack, or if the bird's body touches two wires at the same time, an electric current will flow through the bird and electrocut. In this way, people need to always have a long insulated porcelain bottle on the high-voltage transmission line, which can not only protect the birds from electric shock, but also avoid power outages due to electric shock.
Precautions and key points for high-voltage lines:
The safety distance of high-voltage lines below 1kv is 4 meters; 1 The safety distance of 10kV high-voltage line is 6 meters; 35 110kV high-voltage line safety distance of 8 meters; 154 220kv high-voltage line safety distance of 10 meters; The safety distance of the 350 500kV high-voltage line is 15 meters. The electromagnetic field generated by the high-voltage line is generally called the extremely low-frequency electromagnetic field or the power-frequency electric field or the power-frequency magnetic field.
That is to say, the high-voltage line and substation will not produce the so-called electromagnetic radiation at all, and the power frequency electric field and power frequency magnetic field it produces are induced electric fields and induced magnetic fields, because its wavelength is very long, so it will not be directly absorbed by the human body like electromagnetic radiation, but it will induce current in the human body, in order to prevent the impact on the human body, the induced current density needs to be controlled within a certain range.
The above content reference: Encyclopedia - High Voltage Line.