The telecommunication tower in the urban area, the radiation range is the community users within a radius of 500 meters, and the telecommunication tower in the suburbs, the radiation range is the area with a radius of about 10 kilometers.
How far is the safe distance from the signal tower?
The installation of the signal tower requires 15 to 50 meters from the ground, and the safe distance between the signal tower and the surrounding residents is 200 meters away. According to the relevant content, there is relatively large radiation within 100-200 meters around the signal tower, which is harmful to human health, so we need to pay attention to it.
Chinese law stipulates that the construction of mobile communication base stations must comply with the requirements of the Regulations on Electromagnetic Radiation Protection and the Hygienic Standards for Environmental Electromagnetic Waves. It stipulates that as long as the electric field strength is less than 12 volts per meter, or the power density is less than 40 microwatts per square centimeter, it meets the safety standard. This standard is even lower than the radiation level of mobile phones and computers, so it will not affect the health of nearby residents. make an impact.
How far is the range of harm to people from telecommunication signal towers?
Signal towers have different radiation ranges in different frequency bands.
Take the 900MHz signal tower used in GSM-R wireless communication as an example: the radiation range is within 10 meters. According to China's national standard on electromagnetic radiation "Regulations on the Protection of Electromagnetic Radiation" (restrictions on the export of public radiation), the power density of the 900MHz frequency band should not exceed 0.4 watts per square meter. The 900MHz mobile In the communication frequency band, one iron tower is arranged at an interval of about 3.7 kilometers (average) along the railway line. Not all open areas are suitable for the deployment of iron towers and meet the system requirements. The height of the project antenna is about 40-60 meters, and the location of the antenna It is very high and covers along the direction of the railway. According to the power density calculation theory, it can be concluded that the power density at 10 meters in the direction of the main lobe of the antenna is not more than 0.4 watts/square meter.
