Birds can be found everywhere in our lives, soaring freely in the sky or perching high up in trees, sometimes resting on utility poles and transmission lines. However, these seemingly relaxed and uncontested birds have caused great damage to the power system. As a result of the birds' nesting, roosting, defecating and flying activities, the power grid system often malfunctions, resulting in power outages, equipment damage and more.
In the United States, for example, during the "1923 Crisis", nearly 400 kilometers of high-voltage transmission lines from the Bigg Creek Hydroelectric Plant in Los Angeles were used to maintain the city's electricity supply. To meet the city's power needs, engineers upgraded the transmission line's load from 150 kilovolts to 220 kilovolts. However, the transformation did not go as smoothly as expected.
Frequent flashover effects shorted the cables to grounded metal supports, creating widespread artificial lightning that subsequently triggered circuit protection devices, paralyzing the entire city's power grid and severely damaging many of the electrical facilities. In the summer of 1923, in just three months, this high-voltage transmission line has occurred more than thirty times by the flashover effect caused by the power outage accident.
As science has advanced, humans have gained a better understanding of the relationship between power outages and bird droppings. Birds may defecate anywhere and anytime in order to stay light for better flight. Many large raptors excrete very much, such as the golden eagle's excrement in the air instantly formed a parabola, the length of up to two meters. And high-voltage transmission lines can travel some distance through the air, making it possible for bird excrement to trigger a flashover effect even if it does not come into direct contact with the lines.
True bird repellent technology, in order to cope with the power grid bird droppings problem, the introduction of ultra-loud solar voice bird repeller (ZQN-DL-QS), the device with strong sound waves continue to send out the sound that makes birds afraid, stimulate the auditory nerves of birds, so that the birds actively fly away, the spread of the effective radius of more than 200 meters, repellent birds wide range, so that the birds take the initiative to stay away from the danger zone of the electric power system, to protect electric power facilities from the invasion of birds.
