The construction of the substation was originally a good thing for the benefit of the common people. Nowadays, in many places in our country, it has been attacked by the people. Because the fear of substation will produce electromagnetic radiation affecting the health of the body, the substation has almost become a "heart and soul" for everyone to avoid. In order to eliminate the panic of the people on the substation and ensure the smooth construction of the power facilities, the Shanghai Environmental Protection Bureau will soon introduce a "substation" Environmental Protection Design Code.
According to Gao Yongshan, Director of the Science and Technology Standards Department of the Shanghai Environmental Protection Bureau, in recent years, Shanghai's electricity load has hit record highs, and the original substation facilities have become saturated. In order to increase power supply, Shanghai plans to be in the late 10th Five-Year Plan. During the “Eleventh Five-Year Plan†period, 5 billion yuan will be invested each year for the construction of power transmission and transformation equipment and power grids, and six new 500 kV substations, 62 220 kV substations, and 60 110 kV substations will be built. A large number of 35 kV and 10 kV substations.
Due to the dense population of Shanghai, the construction of contiguous buildings, and the construction of substations in the urban area, there is a considerable amount of need to approach or enter residential areas and residential buildings. At this time, there will always be strong opposition from surrounding residents, and blocked incidents occur frequently. The letters and visits caused by the construction have become hot spots for complaints.
In the jurisdiction of Shanghai South Power Supply Company alone, there were many incidents that hindered power engineering last year. The power department plans to build a 35 kV substation for the Zhonghai Xinyuan Community and surrounding residents in Xuhui District. The planning, land and design departments have already approved it, but The residents of the community did not "receive the situation" and jointly wrote a letter to the city letter and visit office, which caused the project to be delayed. A similar situation has occurred in the residential area of ​​Pudong Yidong, which is under the jurisdiction of Shanghai East Power Supply Company. As the electricity load in the residential area increases, it is urgent to build a substation, but residents are not willing to build the substation at their own door, the construction of the power company. The plan had to be delayed.
At present, China's "Regulations on the Protection of Electric Power Facilities" only stipulates the protection zones for overhead power lines. The design of substations has not yet met the requirements of environmental protection technology, and the construction of substations has not been incorporated into the unified planning of urban construction. With the increasing number of complaints from the people about the substation, the relevant state departments have not yet had an "authoritative statement."
In order to resolve the "group contradiction" at the source, the Shanghai Environmental Protection Bureau organized the "Shanghai Substation Environmental Protection Design Code Study" this year to take the lead in formulating a set of substation construction and surrounding environmental protection design specifications and related technologies. The standard" makes the environmental protection design and construction of substations law-abiding and rule-based.
The relevant experts of the Shanghai Radiation Environment Supervision Station, which undertakes this research topic, have experienced the power frequency of the power frequency generated by the 220 kV, 110 kV, 35 kV and 10 kV substations newly built and put into operation in the urban area. The status quo and on-site measurement data of the comprehensive electric taste power frequency electromagnetic noise were analyzed and studied.
Experts have found that indoor substations (incoming and outgoing lines use underground cables), whether it is a joint oil-immersed air-cooled substation or a split oil-immersed self-cooling substation, including 10 kV room transformers and box changes, regardless of voltage levels, One meter away from the wall (or wall), the power frequency electric field strength, magnetic induction intensity, and integrated electric field strength are roughly in the same range, far below the electromagnetic radiation standards stipulated by the state, and are very close to the background value of Shanghai electromagnetic radiation environment.
The open-air substation, including the 10 kV pole change, is mostly overhead lines due to the entry and exit of the high-voltage line, and the distribution structure is close to the wall. Therefore, the power frequency electric field strength, magnetic induction intensity, and comprehensive electric field strength are 1 m away from the wall (or rod change). It is much higher than the indoor substation and close to the national standard, which is significantly higher than the background value of the electromagnetic radiation environment in Shanghai.
The experts also compared the measurement results of the substation with the household appliances, and found that some typical household appliances (such as electric ovens, electric blankets, refrigerators, televisions, etc.) have a power frequency field strength of 0.3 meters. It is much higher than the power frequency electric field strength at 1 meter outside the wall of the indoor substation.
Experts pointed out that human beings use electricity for nearly 100 years. Household appliances have become an indispensable part of daily life. Humans have long adapted to live in a weak electric field environment. Therefore, it is not necessary to worry about this. As China's public awareness of environmental protection has increased, the people are paying more and more attention to their "environmental rights". This is certainly a welcome thing, but at the same time, we must respect science, we must not overdo it, and there is no need to "talk about change."
Experts suggest that substation construction should be synchronized with urban development, regional development planning, residential community development planning should be included in substation construction projects, and environmental impact assessment of construction projects; in residential development projects, in principle, substations should be built in advance; Urban, urban, and populated residential areas do not develop above-ground substations of 500 kV and above. Separate self-cooling transformers should be used for substations of 35 kV and above; encourage substation to be located in large green spaces, or develop Underground substations; substations generally maintain an appropriate distance from residential buildings or other environmentally sensitive targets, 220 kV for 20 m, 110 kV for 15 m, 35 kV for 15 m and 10 kV for 8 m.
In addition, in the design specifications of substation construction, experts have also proposed a number of specific measures, such as the construction of substations in time zones, towns, and population-intensive residential areas, all using underground cables, radiators are cooled by natural ventilation, and substation walls are made of steel. Structure, and good grounding, etc.
At present, the Shanghai Environmental Protection Bureau has submitted the research report “Shanghai Substation Environmental Protection Design Specification†(draft) to the Shanghai Construction Engineering Standards Quota Management Station, and proposes to add it to the “2005 Shanghai Construction Standardsâ€. Prepare the plan." It is reported that due to the vital interests of the general public, the "Specifications" will be widely heard by experts and the public before the official promulgation. After the "Regulations" was officially promulgated, the Shanghai Environmental Protection Bureau will make science and education films to promote popular science to the general public and guide people to correctly treat electromagnetic radiation.
The authenticity of this information has not been confirmed by the international electrical network, for your reference only.
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According to Gao Yongshan, Director of the Science and Technology Standards Department of the Shanghai Environmental Protection Bureau, in recent years, Shanghai's electricity load has hit record highs, and the original substation facilities have become saturated. In order to increase power supply, Shanghai plans to be in the late 10th Five-Year Plan. During the “Eleventh Five-Year Plan†period, 5 billion yuan will be invested each year for the construction of power transmission and transformation equipment and power grids, and six new 500 kV substations, 62 220 kV substations, and 60 110 kV substations will be built. A large number of 35 kV and 10 kV substations.
Due to the dense population of Shanghai, the construction of contiguous buildings, and the construction of substations in the urban area, there is a considerable amount of need to approach or enter residential areas and residential buildings. At this time, there will always be strong opposition from surrounding residents, and blocked incidents occur frequently. The letters and visits caused by the construction have become hot spots for complaints.
In the jurisdiction of Shanghai South Power Supply Company alone, there were many incidents that hindered power engineering last year. The power department plans to build a 35 kV substation for the Zhonghai Xinyuan Community and surrounding residents in Xuhui District. The planning, land and design departments have already approved it, but The residents of the community did not "receive the situation" and jointly wrote a letter to the city letter and visit office, which caused the project to be delayed. A similar situation has occurred in the residential area of ​​Pudong Yidong, which is under the jurisdiction of Shanghai East Power Supply Company. As the electricity load in the residential area increases, it is urgent to build a substation, but residents are not willing to build the substation at their own door, the construction of the power company. The plan had to be delayed.
At present, China's "Regulations on the Protection of Electric Power Facilities" only stipulates the protection zones for overhead power lines. The design of substations has not yet met the requirements of environmental protection technology, and the construction of substations has not been incorporated into the unified planning of urban construction. With the increasing number of complaints from the people about the substation, the relevant state departments have not yet had an "authoritative statement."
In order to resolve the "group contradiction" at the source, the Shanghai Environmental Protection Bureau organized the "Shanghai Substation Environmental Protection Design Code Study" this year to take the lead in formulating a set of substation construction and surrounding environmental protection design specifications and related technologies. The standard" makes the environmental protection design and construction of substations law-abiding and rule-based.
The relevant experts of the Shanghai Radiation Environment Supervision Station, which undertakes this research topic, have experienced the power frequency of the power frequency generated by the 220 kV, 110 kV, 35 kV and 10 kV substations newly built and put into operation in the urban area. The status quo and on-site measurement data of the comprehensive electric taste power frequency electromagnetic noise were analyzed and studied.
Experts have found that indoor substations (incoming and outgoing lines use underground cables), whether it is a joint oil-immersed air-cooled substation or a split oil-immersed self-cooling substation, including 10 kV room transformers and box changes, regardless of voltage levels, One meter away from the wall (or wall), the power frequency electric field strength, magnetic induction intensity, and integrated electric field strength are roughly in the same range, far below the electromagnetic radiation standards stipulated by the state, and are very close to the background value of Shanghai electromagnetic radiation environment.
The open-air substation, including the 10 kV pole change, is mostly overhead lines due to the entry and exit of the high-voltage line, and the distribution structure is close to the wall. Therefore, the power frequency electric field strength, magnetic induction intensity, and comprehensive electric field strength are 1 m away from the wall (or rod change). It is much higher than the indoor substation and close to the national standard, which is significantly higher than the background value of the electromagnetic radiation environment in Shanghai.
The experts also compared the measurement results of the substation with the household appliances, and found that some typical household appliances (such as electric ovens, electric blankets, refrigerators, televisions, etc.) have a power frequency field strength of 0.3 meters. It is much higher than the power frequency electric field strength at 1 meter outside the wall of the indoor substation.
Experts pointed out that human beings use electricity for nearly 100 years. Household appliances have become an indispensable part of daily life. Humans have long adapted to live in a weak electric field environment. Therefore, it is not necessary to worry about this. As China's public awareness of environmental protection has increased, the people are paying more and more attention to their "environmental rights". This is certainly a welcome thing, but at the same time, we must respect science, we must not overdo it, and there is no need to "talk about change."
Experts suggest that substation construction should be synchronized with urban development, regional development planning, residential community development planning should be included in substation construction projects, and environmental impact assessment of construction projects; in residential development projects, in principle, substations should be built in advance; Urban, urban, and populated residential areas do not develop above-ground substations of 500 kV and above. Separate self-cooling transformers should be used for substations of 35 kV and above; encourage substation to be located in large green spaces, or develop Underground substations; substations generally maintain an appropriate distance from residential buildings or other environmentally sensitive targets, 220 kV for 20 m, 110 kV for 15 m, 35 kV for 15 m and 10 kV for 8 m.
In addition, in the design specifications of substation construction, experts have also proposed a number of specific measures, such as the construction of substations in time zones, towns, and population-intensive residential areas, all using underground cables, radiators are cooled by natural ventilation, and substation walls are made of steel. Structure, and good grounding, etc.
At present, the Shanghai Environmental Protection Bureau has submitted the research report “Shanghai Substation Environmental Protection Design Specification†(draft) to the Shanghai Construction Engineering Standards Quota Management Station, and proposes to add it to the “2005 Shanghai Construction Standardsâ€. Prepare the plan." It is reported that due to the vital interests of the general public, the "Specifications" will be widely heard by experts and the public before the official promulgation. After the "Regulations" was officially promulgated, the Shanghai Environmental Protection Bureau will make science and education films to promote popular science to the general public and guide people to correctly treat electromagnetic radiation.
The authenticity of this information has not been confirmed by the international electrical network, for your reference only.
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