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Assesses a novel anti-corrosion coating for bird hazard prevention in transmission lines, suggesting improved safety measures.
Bird dropping flashover caused by trip accidents in transmission lines seriously affects the safe and stable operation of power equipment. Existing preventive measures include installing bird-preventing needles, baffles, and other facilities on the cross-arm section of transmission line towers to block and drive away birds from perching and nesting. However, tripping accidents still occur frequently. This paper proposes a new method of bird hazard prevention by applying an insulating coating on the surface of cross-arm angle steel transmission towers at ground potential to block the flashover channel of bird dropping chains. This method is long-lasting and can be applied during live coating operations while transmission lines are in normal operation, thereby opening up a new approach to bird hazard prevention. In addition, a high-insulation and corrosion-protection coating was developed using a mixture of two resins and two curing agents. After curing, the coating’s insulation performance reaches 20 kV/mm, and its corrosion protection performance meets the requirements for C4 and C5 grade heavy corrosion protection. The coating features controllable drying time and thick-film field construction, making it suitable for bird hazard prevention in transmission lines.
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Kang et al. (2026) studied this question.
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