The fans on the road are generally 60 meters high, plus the fan is 60 meters high. If there is extreme weather, or the fan is damaged due to fatigue, it will fall over, which will pose a threat to your personal safety.
At present, there is no conclusion on the harm of fans to the human body abroad. However, some people in Japan have some symptoms. Research shows that it is probably caused by the low-frequency noise of the fans (inaudible to human ears). Others have not been seen yet. According to reports, it is a basic common sense that wind turbines should be kept away from areas with frequent human activities.
The specified working wind speed range of wind turbines is generally 3~25m/s. The general start-up wind speed of wind turbines is 3-4m/s, and the cut-out wind speed (high wind shutdown wind speed) is 19-25m/s. Generally, what is measured is not the wind speed, but the number of standard hours in a year. The so-called standard hour refers to the wind at full power of the wind turbine, which is generally 11-15m/s. If it can reach 2,000 standard hours a year, it is an area with rich wind resources.