1. The radiation of power plants is not bigger than that of mobile phones or even microwave ovens. The same is true in terms of radiation loudness, but is our microwave oven on 24 hours? Do our mobile phones talk 24 hours a day? But we have lived in such an environment for many years.
2. Because the harm of power plant radiation is invisible, it is difficult for you to unavoidably associate your own diseases or symptoms with radiation, which by no means means means that power plant radiation is harmless. Do you think you can't feel anything after talking on your mobile phone for more than 2 hours? A lot of harm is just that we can't prove it. Scientists who discovered radioactive substances were also buried in the substances they studied, but it was too late to know.
2. What harm does electromagnetic radiation do to human body? According to experts, there are six major hazards.
One of the hazards is that
It is probably one of the causes of childhood leukemia. Medical research has proved that long-term exposure to high electromagnetic radiation will change blood, lymph and cell protoplasm. According to the research of Italian experts, more than 400 children in this country suffer from leukemia every year. Mainly because it is too close to the high-voltage line, the electromagnetic radiation pollution is serious.
The second hazard
It can induce cancer and accelerate the proliferation of cancer cells in human body. Electromagnetic radiation pollution will affect the circulatory system, immunity, reproduction and metabolic functions of human body, and even induce cancer in severe cases, accelerating the proliferation of cancer cells in human body. Swiss research data show that the probability of breast cancer among residents with high-voltage lines passing around is 7.4 times that of ordinary people. The results of sampling tests conducted by the Texas Cancer Medical Foundation in the United States on some patients suffering from electromagnetic radiation injuries show that the growth rate of cancer cells in workers working near high-voltage lines is 24 times faster than that of ordinary people.
The third hazard
It affects people's reproductive system, mainly manifested in the decline of male quality, spontaneous abortion of pregnant women and fetal malformation.
The fourth danger
Will lead to mental retardation in children. According to the latest survey, among the 20 million children born every year in China, 350,000 are defective children, of whom 250,000 are mentally retarded. Some experts believe that electromagnetic radiation is also one of the influencing factors. The World Health Organization believes that the electromagnetic radiation from computers, televisions and mobile phones has a negative impact on the fetus.
The fifth danger
It affects people's cardiovascular system, manifested as palpitation, insomnia, menstrual disorder in some women, bradycardia, decreased cardiac blood volume, irregular sinus heart rate, leukopenia, decreased immune function and so on. If patients with pacemakers are exposed to high electromagnetic radiation, the normal use of pacemakers will be affected.
Hazard 6
It has a bad influence on people's visual system. Because eyes belong to the sensitive organs of human body to electromagnetic radiation, too high electromagnetic radiation pollution will cause vision loss, cataracts and so on. High-dose electromagnetic radiation will also affect and destroy the original biological current and biological magnetic field of human body, making the original electromagnetic field of human body abnormal. It is worth noting that different people or the same person have different tolerance to electromagnetic radiation at different ages, and the elderly, children and pregnant women are sensitive to electromagnetic radiation.
The state has set a safe distance. Generally 15 meters is fine. Don't worry too much.
Firstly, it is clear that 50 Hz power frequency electromagnetic oscillation of high voltage line cannot produce radiation; Only high-frequency oscillation can produce radiation. So don't worry about the influence of electromagnetic radiation. But high-voltage lines do produce power frequency electromagnetic fields.
High-voltage transmission line adopts three-phase system. The sum of three-phase voltage and current is zero. If the three-phase distance is close enough, the external electric field and magnetic field are zero. But in fact, the transmission lines of each phase are almost the same. & gt
Question 2: Is there radiation near the large substation? Does it have a great influence on people? According to the Regulation on the Protection of Electric Power Facilities, for a 1 10 kV substation transmission overhead line, its protection area is 10 m outside the line, in other words, as long as it is away from the line 10 m, the electromagnetic radiation safety is guaranteed. Conductors of 220kV and 500kV power transmission and transformation systems, with protection zones of 15m and 20m respectively. The safe distance of outdoor box-type substation is stipulated in this way. The safety distance of 6KV is 0.7m, and the safety distance of 0.4KV is the low voltage side, as long as it is not touched. The so-called safe distance is the minimum distance between human body and charged body. I think your picture shows that the distance between the transformer room and the building is 0.8m, which is far from the transformer inside, which is enough from a safe distance. But the electromagnetic interference you said depends on the shielding wall of the substation. It must have an effect on the noise. The following are the safe distances of other voltage levels for reference, with units of (KV) 10KV and below 0.7 m, 35KV 1.0 m, 1 10KV 1.5 m, 220 KV3.0 m and 330kV 4.0. Therefore, the workers who are on duty in substations and power plants for a long time will not be affected by electromagnetic radiation when they work outside the safe distance of electric shock. According to the national requirements, all power transmission and transformation projects have been evaluated and approved by the environmental protection department to ensure that electromagnetic radiation has no adverse effects on the public. It is forbidden to build houses under high-voltage lines. The wires on the roofs of these residents with power facilities planning and protection are all 1 10000 volts, which will produce strong radiation and be harmful to human health. In addition, because the voltage is as high as 1 10000 volts, wire equipment may break down, and foreign experts have come to the conclusion that both the "harmful theory" and the "harmless theory" of high-voltage lines in buildings are "harmful" from the perspective of epidemiological investigation; Domestic experts have concluded that it is "harmless" from the point of view of electricity. 2. Who has the greatest influence on high-voltage lines? It has great influence on children and little influence on adults. 3. What is the impact of high-voltage lines? British epidemiologists have concluded that the incidence of leukemia in children living in electromagnetic radiation environment is one in 700, which is twice as high as that in children living in electromagnetic radiation-free environment (1.400). The conclusion of Swedish National Council for Industry and Technology Development: Children under 1 and 1.5 years old are more than 2.7 times more likely to suffer from leukemia than ordinary children if they are exposed to an environment with an average magnetic induction intensity greater than 0.2 microtesla; 2. If the magnetic induction is greater than 0.3 micro Tesla, it is 3.8 times. The conclusion of California Health Science Assessment Agency: "Electromagnetic field can increase the risk of childhood leukemia, adult malignant brain tumor, amyotrophic lateral sclerosis, abortion and so on. To a certain extent, this may lead to suicide and adult leukemia. " 4. What is the impact of high-voltage lines on people? What is its safety index value? High-voltage lines transmit large current, and the magnetic field generated by large current has an impact on people's health. British experts believe that the safe value of the magnetic field generated by high-voltage lines is 0.4 micro Tesla (μt), above which children will face the risk of illness. 5. What is the safe distance of the high-voltage line? Electromagnetic radiation intensity exceeds 0.4 microtesla within 220kV high-voltage line100m; 132 kV high-voltage line electromagnetic radiation intensity exceeds 0.4 microtesla in the range of tens of meters; The electromagnetic radiation intensity of 1 1-66 kV high-voltage lines within a range of more than ten meters exceeds 0.4 micro Tesla; The electromagnetic radiation intensity of high-voltage lines buried in the ground is only more than 0.4 micro Tesla within a few meters. 6. China's high-voltage line construction standards are far from meeting the safety requirements. According to Chinese standards, the magnetic induction intensity below 100 micro Tesla can meet the construction standards of high-voltage lines. 7. The impact of high-voltage lines on real estate has already appeared. The owner found that the impact of high-voltage lines on real estate has begun, and the rental price of houses near 1 and high-voltage lines has dropped; 2. The sale of second-hand houses next to high-voltage lines is also affected. High-voltage lines make the house that has worked hard for a lifetime face depreciation; Developers also found that housing sales near high-voltage lines were not smooth. The safe distance between outdoor and it shall not be less than 8 meters.
Question 3: Is there radiation in the hydropower station? 1. Common knowledge of electromagnetic radiation and noise.
Q: What is electromagnetic radiation?
A: The phenomenon that energy propagates in space in the form of electromagnetic waves.
Q: What are the types of electromagnetic radiation pollution sources?
Answer: 1. Radio and television transmitting equipment, the main departments are radio and television transmitting stations and turntables in various places.
2. Communication between communication radar and navigation transmitting equipment includes short-wave transmitting station, microwave communication station, ground satellite communication station and mobile communication station.
3. Industrial, scientific research and medical high-frequency equipment.
4. Electromagnetic radiation interference of transportation systems, including electrified railways, light rail and electrified railways, trams and trolleybuses.
5. Electromagnetic radiation of power system. High voltage transmission lines include overhead transmission lines and underground cables, and substations include power plants and substations.
6. Electromagnetic radiation of household appliances, including computers, monitors, televisions, microwave ovens, induction cookers, wireless telephones and mobile phones.
Q: What is the main mechanism of electromagnetic radiation affecting human body?
A: Now most people know that X-rays in hospitals should not be taken too often, because frequent X-ray radiation may have cumulative effects and cause harm to health. Similarly, the electromagnetic radiation received by human body is too strong, too long or too close, which may also cause harm, and its effects on human body are mainly thermal effect, non-thermal effect and cumulative effect.
(1) Thermal Effect More than 70% of the human body is water, and water molecules rub against each other after being radiated by electromagnetic waves, which causes the body to heat up, thus affecting the normal work of internal organs.
Studies at home and abroad have confirmed that the effect of electromagnetic radiation on human body is mainly thermal effect, and the harm mainly appears in RF electromagnetic field. Substation radiation belongs to power frequency electromagnetic field, not radio frequency electromagnetic field. Only when the field strength of RF electromagnetic field reaches a certain value can it act on human body. Under the action of radio frequency, after the human body absorbs electromagnetic radiation energy, its energy is converted into heat energy. Only when the temperature regulation ability is exceeded, the temperature balance function loses its balance, causing the temperature to rise, thus producing biological effects such as physiological dysfunction and pathological changes.
(2) Non-thermal effect There is a weak electromagnetic field in human organs and tissues, which is stable and orderly. Once disturbed by the external electromagnetic field, the weak electromagnetic field in equilibrium will be destroyed and the human body will be damaged.
(3) Cumulative effect After the thermal and non-thermal effects act on the human body, the damage to the human body has not yet had time to repair itself (commonly known as human endurance-internal resistance). If it is radiated by electromagnetic waves again, the degree of damage will accumulate and become permanent pathology for a long time.
Q: What is the function of electromagnetic radiation?
A: Electromagnetic radiation can be described as magic and can be seen in many places. Specific applications include:
(1) medical application: microwave physiotherapy promotes blood circulation and treats tumors.
An antenna or radiator used to treat tumors can control the temperature within a narrow temperature range that only kills cancer cells. Electromagnetic radiation hyperthermia is to use electromagnetic energy to heat local tissues, improve blood circulation, promote metabolism and achieve the purpose of treatment.
(2) transmitting information: communication, radio, television, etc.
Communication mainly includes microwave communication and long and short wave communication, such as mobile phones and satellite phones. In addition, there are long and short waves used for communication, such as walkie-talkies. Broadcasting is to turn sound into electricity and then spread it out in the form of waves through the transmitting antenna.
(3) Target detection: radar, navigation, remote sensing, etc.
The working principle of radar is that the transmitter sends a pulse wave to the detected target, and when the pulse wave meets the detected target, it will be reflected, so that the time interval between the reflected wave and the transmitter can be measured and the distance between the detected target and the radar can be known.
(4) Induction heating: induction cooker, high-frequency quenching, high-frequency melting, high-frequency welding, high-frequency cutting, etc.
The conductor or semiconductor itself is heated by the energy of medium and long-band high-frequency electromagnetic field to achieve the purpose of heat treatment.
(5) Medium heating: microwave oven, microwave dryer, plastic sealing machine, etc.
When a non-conductor is placed in a strong electromagnetic field, its molecules or atoms with positive and negative charges vibrate at the frequency of this electric field under the action of alternating electromagnetic field, and "rub" to generate heat, thus achieving the purpose of processing.
(6) Military applications: electronic warfare, electromagnetic weapons, etc.
For example, in the Gulf War, the United States first found out the signal frequency used by the Iraqi army, and then sent a stronger signal with the same frequency, which led to Iraq' s presence.
Q: What is the working principle of electromagnetic shielding device? What are the main electromagnetic radiation protection products?
Electromagnetic shielding equipment is generally a closed shell made of metal materials. When the electromagnetic field is transmitted to gold > >
Question 4: Does the thermal power plant radiate much? Because there are many kinds of radiation itself, radiation with different frequencies and intensities will have different reactions. At present, no one dares to say that radiation is safe as long as it is low enough. And because everyone's body resistance is different, everyone will have different degrees of symptoms. Generally, being polluted by electromagnetic radiation will cause central nervous system problems such as headache, insomnia and arrhythmia. At the same time, it may affect some people's eyes. Have vision loss, skin diseases and other phenomena, and may even cause cancer. Children and the elderly are generally less resistant to radiation, so it is more harmful to the elderly and children. From personal experience, working in a power plant for a day will obviously make you feel dizzy. At first you thought it was a psychological illusion, but later you found that it was not at all. However, many people often see the following statement that power plant radiation is harmless:
1. The radiation of power plants is not bigger than that of mobile phones or even microwave ovens. The same is true in terms of radiation loudness, but is our microwave oven open 24 hours a day? Do our mobile phones talk 24 hours a day? However, if you are a worker who is directly engaged in power plant operation, you should be exposed to direct radiation for at least 8 ~ 9 hours every day!
There is no evidence that the radiation from power plant will affect your health. Some people may say that you are alarmist, but because the harm of radiation is invisible, it is difficult for you to inevitably associate some disease or symptom with radiation. This does not mean that the radiation from power plants is harmless. Do you think you won't feel anything after talking on your cell phone for more than 2 hours? A lot of harm is just that we can't prove it. Didn't the scientists who discovered radioactive substances die of the substances they studied, but it was too late to know.
2. What harm does electromagnetic radiation do to human body? According to experts, its harm mainly includes six aspects.
One of the hazards is that
It is probably one of the causes of childhood leukemia. Medical research has proved that long-term exposure to high electromagnetic radiation will change blood, lymph and cell protoplasm. Italian experts believe that more than 400 children suffer from leukemia every year in Italy, mainly because they are too close to high-voltage wires, so they are seriously polluted by electromagnetic radiation.
The second hazard
It can induce cancer and accelerate the proliferation of cancer cells in human body. Electromagnetic radiation pollution will affect the circulatory system, immunity, reproduction and metabolic functions of human body, seriously induce cancer and accelerate the proliferation of cancer cells in human body. Swiss research data show that the probability of breast cancer among residents with high-voltage lines passing around is 7.4 times that of ordinary people. The results of sampling tests conducted by the Texas Cancer Medical Foundation in the United States on some patients suffering from electromagnetic radiation injury show that the growth rate of cancer cells in workers working near high-voltage lines is higher than that of ordinary people.
The third hazard
It affects people's reproductive system, mainly manifested in the decline of male quality, spontaneous abortion of pregnant women and fetal malformation.
The fourth danger
It will lead to mental retardation of children. The latest survey shows that among the 20 million children born in China every year, 350,000 are mentally retarded, of which 250,000 are mentally retarded. Some experts believe that electromagnetic radiation is also one of the influencing factors. The World Health Organization believes that the electromagnetic radiation from computers, televisions and mobile phones has a negative impact on the fetus.
The fifth danger
It affects people's cardiovascular system, such as palpitation, insomnia, menstrual disorder in some women, bradycardia, decreased cardiac blood volume, irregular sinus heart rate, leukopenia and decreased immune function. If patients with pacemakers are exposed to high electromagnetic radiation, the normal use of pacemakers will be affected.
Hazard 6
It has a bad influence on people's visual system. Because eyes belong to the sensitive organs of human body to electromagnetic radiation, too high electromagnetic radiation pollution will cause vision loss, cataracts and so on. High-dose electromagnetic radiation will also affect and destroy the original biological current and biological magnetic field of human body, making the original electromagnetic field of human body abnormal. It is worth noting that different people or the same person have different tolerance to electromagnetic radiation at different ages, and the elderly, children and pregnant women are sensitive to electromagnetic radiation.
In view of this, the author suggests that friends engaged in power plant operation or maintenance should pay attention to their health and take corresponding protective measures to protect their right to life and health! ! ...& gt& gt
Question 5: Does the solar power station have radiation? In fact, there is not only electricity but also radiation. In fact, everything around us has radiation, and the simplest one is thermal radiation. But radiation within a certain range will not affect the human body. For example, the radiation of photovoltaic power plants is actually similar to that of ordinary household appliances. Otherwise, the country would not praise this one so much. (Professional manufacturer, professional design and installation. Guangdong dejiu professional answers for you)
Question 6: Is there radiation pollution in thermal power plants? There should be no radiation pollution in thermal power plants.
If you say there must be radiation, then sunlight is a kind of light radiation. Coal-fired hot water belongs to the category of radiation heat transfer.
The electronic products we use, such as televisions and mobile phones, all have certain radiation.
Ceramics, etc. Have a certain amount of radiation.
But this kind of radiation has no effect on human body, so it is not called pollution.
Question 7: Is the power plant harmful to health? What harm? Because there are many kinds of radiation itself, radiation with different frequencies and intensities will have different reactions. At present, no one dares to say that radiation is safe as long as it is low enough. And because everyone's body resistance is different, everyone will have different degrees of symptoms. Generally, being polluted by electromagnetic radiation will cause central nervous system problems such as headache, insomnia and arrhythmia. At the same time, it may affect some people's eyes, and there may be phenomena such as decreased vision and skin diseases. What harm does electromagnetic radiation do to human body? According to relevant experts, its harm mainly includes six aspects: one of the hazards is that it is probably one of the reasons why children suffer from leukemia. Medical research has proved that long-term exposure to high electromagnetic radiation will change blood, lymph and cell protoplasm. According to the research of Italian experts, more than 400 children in this country suffer from leukemia every year. The main reason is that they are too close to high-voltage power lines, which leads to serious electromagnetic pollution. The second hazard can induce cancer and accelerate the proliferation of cancer cells in the human body. Electromagnetic radiation pollution will affect the circulatory system, immunity, reproduction and metabolic functions of human body, and even induce cancer and accelerate the proliferation of cancer cells in human body. Swiss research data show that the probability of breast cancer among residents with high-voltage lines passing around is 7.4 times that of ordinary people. The results of sampling tests conducted by Texas Cancer Medical Foundation on some patients suffering from electromagnetic radiation injury show that the growth rate of cancer cells in workers working near high-voltage lines is 24 times faster than that of ordinary people. The third harm affects people's reproductive system, which is mainly manifested in the decline of male quality, spontaneous abortion of pregnant women and fetal malformation. The fourth hazard can lead to mental retardation in children. The latest survey shows that among the 20 million children born in China every year, 350,000 are mentally retarded, of which 250,000 are mentally retarded. Some experts believe that electromagnetic radiation is also one of the influencing factors. The World Health Organization believes that the electromagnetic radiation from computers, televisions and mobile phones has a negative impact on the fetus. The fifth kind of harm affects people's cardiovascular system, such as palpitation, insomnia, menstrual disorder in some women, bradycardia, decreased cardiac blood volume, irregular sinus heart rate, leukopenia and decreased immune function. If patients with pacemakers are exposed to high electromagnetic radiation, the normal use of pacemakers will be affected. Hazard 6 has a bad effect on human visual system. Because eyes belong to the sensitive organs of human body to electromagnetic radiation, too high electromagnetic radiation pollution will cause vision loss, cataracts and so on. High-dose electromagnetic radiation will also affect and destroy the original biological current and biological magnetic field of human body, making the original electromagnetic field of human body abnormal. It is worth noting that different people or the same person have different tolerance to electromagnetic radiation at different ages, and the elderly, children and pregnant women are sensitive to electromagnetic radiation.
Question 8: Does the solar power station radiate to human body? Photovoltaic power generation directly converts light energy into electric energy without any chemical changes and nuclear reactions.
Therefore, photovoltaic power generation will not have short-wave radiation.
One more thing, radiation has a wide meaning. Light is radiation, electromagnetic wave is radiation, particle flow is radiation, and heat is radiation, so it is clear that we are in all kinds of radiation.
Generally speaking, "radiation" refers to radiation that is harmful to human cells, such as radiation that is carcinogenic and has a high probability of causing genetic variation. Generally speaking, it contains short-wave radiation and some high-energy particle streams.
For photovoltaic power generation, the power generation mechanism is completely the direct conversion of energy, and no other products are produced in the process, so no additional radiation will be produced.
Question 9: Will there be radiation next to the generator? The radiation of high voltage transmission lines will be one of the most harmful. It is probably one of the causes of childhood leukemia. Medical research has proved that long-term exposure to high electromagnetic radiation will change blood, lymph and cell protoplasm. Italian experts believe that more than 400 children suffer from leukemia every year in this country, mainly because they are too close to high-voltage transmission lines. Therefore, it has been seriously polluted by electromagnetic radiation. The second hazard can induce cancer and accelerate the proliferation of cancer cells in the human body. Electromagnetic radiation pollution will affect the circulatory system, immunity, reproduction and metabolic functions of human body, and seriously induce cancer and accelerate the proliferation of cancer cells in human body. Swiss research data show that there are residents who pass by high-voltage lines around. The probability of breast cancer is 7.4 times that of the general population. The results of sampling tests conducted by Texas Cancer Medical Foundation on some patients suffering from electromagnetic radiation injury show that the growth rate of cancer cells in workers working near high-voltage lines is 24 times faster than that of ordinary people. The third harm affects people's reproductive system, mainly the decrease of male quality. Pregnant women have spontaneous abortion and fetal malformation. The fourth hazard can lead to mental retardation in children. According to the latest survey, among the 20 million children born every year in China, 350,000 are defective children, of whom 250,000 are mentally retarded. Some experts believe that electromagnetic radiation is also one of the influencing factors. The World Health Organization believes that the electromagnetic radiation from computers, televisions and mobile phones has a negative impact on the fetus. The fifth hazard affects people's cardiovascular system. It is characterized by palpitation, insomnia, menstrual disorder in some women, bradycardia, decreased blood volume, irregular sinus heart rate, leukopenia and decreased immune function. If patients with pacemakers are exposed to high electromagnetic radiation, the normal use of pacemakers will be affected. The sixth hazard has a negative impact on people's visual system. Because eyes belong to the sensitive organs of human body to electromagnetic radiation, too high electromagnetic radiation pollution will cause vision loss. Cataracts, etc. High-dose electromagnetic radiation will also affect and destroy the original biological current and biological magnetic field of human body, making the original electromagnetic field of human body abnormal. It is worth noting that different people or the same person have different tolerance to electromagnetic radiation at different ages, and the elderly, children and pregnant women are sensitive to electromagnetic radiation.
Question 10: Is living near a substation harmful to your health? Is there much radiation? What's the impact? I don't want to make a long speech. Simply put, high-voltage radiation is harmful.
The International Health Organization (WHO) has confirmed that the power frequency electromagnetic field generated by high voltage transmission is a suspected carcinogen to human beings. A large number of studies have also proved the correlation between power frequency electromagnetic field and other human diseases (such as nervous system diseases). Residents, especially children and the elderly, are more sensitive to power frequency electromagnetic fields and more vulnerable. Scientific research also shows that the probability of people suffering from leukemia and cancer within 40-300 meters around 220 kV high-voltage lines is several times that of other regions. Electromagnetic radiation can also lead to miscarriage of pregnant women, fetal malformation and cardiovascular diseases, which is extremely harmful to people.
You can go to your local civil affairs bureau to reflect it and hurry up.