With the continuous development of the power system, 500kV transmission lines have become the backbone of power grid transmission lines. The construction of a large number of transmission lines is intertwined with the activities of birds. Line failures caused by birds have become the main cause of power system trip accidents. First, it seriously threatens the safe operation of the power system, and its degree of damage is second only to lightning strikes and external damage. Through related research and analysis, the bird damage of 500kV transmission line is mainly caused by three aspects: bird droppings, bird body and bird pecking. This paper analyzes the formation mechanism of bird damage on 500kV transmission lines, and provides some guidance for the corresponding prevention measures for the protection of transmission lines from bird damage.

Aiming at the special needs of transmission lines for repelling birds, this article conducted stress experiments on various bird repellent spices, selected and compounded highly effective bird repellent spices; PVDF particles were used as the main carrier material, and dry-wet phase conversion technology was adopted. Supplemented by various functional agents, we have researched and developed a new type of high-efficiency solid bird repellent with slow release, weather resistance and long-term effect. The real-time monitoring results show that the bird repellent has a strong odor and has an obvious repellent effect on birds. It can prevent the birds from approaching the iron tower containing the bird repellent or even returning to the nest. It is environmentally friendly, efficient and long-lasting, easy to install and use, good weather resistance, etc., superior to the existing similar bird repellent products used in the power system, and meets the bird repelling requirements of the power system.