In power grid operation and maintenance, bird damage has always been a difficult problem plaguing the industry. Frequent short circuits and tripping accidents are caused by birds building nests and perching on power lines. In 2023 alone, there were over 1,200 tripping incidents of transmission lines caused by bird damage across the country, resulting in huge economic losses. There are various types of bird repellents on the market, such as ultrasonic and infrared types, but wind-powered bird repellents remain the first choice for maintenance personnel due to their classic design, practicality, and outstanding cost performance.
For instance, the HIZ-SP-NFL wind-powered bird repellent device from HizTech precisely exploits the birds' aversion to light and dynamic disturbances. It operates on a purely physical principle of bird repulsion, requiring no external power supply. It is fully driven by natural wind, starting with a gentle breeze of 0.5 Beaufort. It works autonomously around the clock without the need for human supervision or maintenance, making it suitable for various complex outdoor scenarios.
The core design of the wind-powered bird repellent device is highly ingenious. The reflective mirror frame is specially designed in a bowl shape, functioning like a wind concentrator to enhance the rotational power and speed of the device. The rotation range can cover an area of ≥ф3.3m. During operation, the wind blades and the reflective mirrors rotate rapidly in different directions. The reflective mirrors refract dynamic strong light in a 360° angle without any blind spots. It can produce up to 120 flashes per minute, continuously interfering with the visual system of birds. Combined with the dynamic deterrence of the wind blades, it makes birds feel uneasy and actively stay away from the transmission towers, achieving a remarkable bird-repelling effect.
It should be noted that a single bird repellent device is hard to achieve all-round bird prevention. The HIZ-SP-NFL wind-powered bird repellent device from Hizuo needs to be used in conjunction with bird spikes and other products. Bird spikes can effectively prevent birds from building nests at key positions on the poles and towers, complementing the wind-powered bird repellent device to form a multi-level bird prevention system, further enhancing the bird prevention effect, and comprehensively safeguarding the safety of transmission lines, thus building a solid defense line for the stable operation of the power grid.
