According to the national "Urban Planning Regulations", the horizontal distance between a 10,000-volt high-voltage line tower and a residential building is generally 5 meters! The safety distance of a substation must be as far away as possible, and the calculation also depends on the scale. , power, otherwise it cannot be calculated! In general community design, the substation is always considered to be in a remote place around the building (more than 50-100M) in order to prevent radiation!
Article 10 of the "Electric Facilities Protection Regulations" Power line protection zone: an overhead power line protection zone: the area within two parallel planes formed by the conductor edges extending horizontally to the outside and perpendicular to the ground. In general, The sideline extension distances of voltage conductors at all levels in the region are as follows:
1-10 kV 5 meters; 35-110 kV 10 meters
154-330 kV 15 meters; 500 kV 20 meters of volts
One of the hazards, it is very likely to be one of the causes of leukemia in children. Medical research has proven that long-term exposure to high electromagnetic radiation will cause changes in blood, lymph and cell protoplasm. After research, Italian experts believe that more than 400 children in the country suffer from leukemia every year. The main reason is that they are too close to high-voltage power lines and thus receive severe electromagnetic pollution.
The second hazard is that it can induce cancer and accelerate the proliferation of cancer cells in the human body. Electromagnetic radiation pollution will affect the human body's circulatory system, immunity, reproduction and metabolic functions. In severe cases, it can also induce cancer and accelerate the proliferation of cancer cells in the human body. Swiss research data points out that residents living in households with high-voltage lines passing by are 7.4 times more likely to develop breast cancer than ordinary people. The results of sampling tests conducted by the Texas Cancer Medical Foundation on some patients who suffered electromagnetic radiation damage showed that the cancer cells of workers working near high-voltage lines grew 24 times faster than the average person.
The third hazard is affecting the human reproductive system, which is mainly manifested in the reduction of male sperm quality, spontaneous abortion and fetal malformations in pregnant women.
The fourth hazard is that it can lead to intellectual disability in children. According to the latest survey, among the 20 million children born in my country every year, 350,000 are defective, 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 electromagnetic radiation from computers, televisions, and mobile phones has adverse effects on fetuses.
The fifth hazard affects people’s cardiovascular system, manifesting as palpitations, insomnia, menstrual disorders in some women, bradycardia, reduced cardiac blood volume, sinus arrhythmia, leukopenia, immune function Decline etc. If a patient with a pacemaker is in an environment with high electromagnetic radiation, the normal use of the pacemaker will be affected.
Hazard No. 6: It has a negative impact on people’s visual system. Since the eyes are the organs of the human body that are sensitive to electromagnetic radiation, excessive electromagnetic radiation pollution can cause vision loss, cataracts, etc. High doses of electromagnetic radiation can also affect and destroy the original biological current and biological magnetic field of the human body, causing abnormalities in the original electromagnetic field in the human body. It is worth noting that different people or the same person at different ages have different tolerances to electromagnetic radiation. The elderly, children, and pregnant women are among the groups that are sensitive to electromagnetic radiation.
There are five types of people who need to pay special attention to electromagnetic radiation pollution: people who live and work near high-voltage lines, substations, radio stations, TV stations, radar stations, and electromagnetic wave transmission towers; people who often use electronic instruments, medical equipment, and office automation Equipment personnel; staff living in modern electrical automation environments; patients wearing pacemakers; pregnant women, children, the elderly and patients living in the above environments. If the electromagnetic radiation pollution in the living environment is relatively high, the public must take corresponding protective measures.
Do not place household appliances too centrally to avoid exposing yourself to the risk of excessive doses of radiation. In particular, some household appliances that easily generate electromagnetic waves, such as radios, TVs, computers, refrigerators, etc., should not be placed centrally in the bedroom. All kinds of household appliances, office equipment, mobile phones, etc. should try to avoid long-term operation, and try to avoid using multiple office and household appliances at the same time. The electromagnetic radiation released when the mobile phone is connected is the largest. When using it, you should try to keep the distance between your head and the mobile phone antenna as far as possible. It is best to use separate earphones and microphones to answer calls.
Pay attention to the distance between the human body and office and household appliances. When using various electrical appliances, you should maintain a certain safe distance. The farther away you are from the appliance, the less damage you will suffer from electromagnetic waves.
For example, the distance between color TVs and people should be 4 to 5 meters, and the distance from fluorescent tubes should be 2 to 3 meters. The microwave oven should be at least 1 meter away after it is turned on. Pregnant women and children should try to stay away from the microwave oven.
If the house is close to high-voltage lines, substations, radio stations, TV stations, radar stations, and electromagnetic wave transmitting towers, experts must be asked to conduct electromagnetic radiation testing. If the detection is found to exceed national standards, measures must be taken promptly.