Tongkai Airport Bird Drive Solution

Due to the impact of the epidemic, human production activities have significantly decreased, which has made birds particularly active during the breeding season in 2020, significantly increasing their impact on industries such as high-speed rail power stations, railways, and airports, especially with an increase in the frequency of bird damage accidents in domestic power stations.

The main manifestations of bird damage at airports are:

1. Insulator fecal flashover;

2. Short circuit between phases;

3. Nesting of knife switch boxes, reactors, capacitors, and gantry frames.

The manifestation of bird damage in overhead contact networks

1. Bird nesting

In spring, birds begin to nest and hatch on transmission line towers. Through on-site observation, it is mostly birds such as magpies, crows, and goshawks. A bird's nest made of tree branches may not cause an accident in dry weather, but in rainy weather, the bird's nest on the tower may be blown away by the wind and fall onto live wires or suspended bottles. If the tree branches come into contact with the wires (or near the wires), a short circuit or grounding accident will occur.

2. Bird flight

Birds like to fly, and they like to fly with branches, iron wires, firewood and other objects in their mouths. When they fly back and forth over the line, iron wires, weeds and other objects fall on the cross arm of the tower, suspension insulator grading ring, or pass through the insulation gap between the tower components and the wire, it can cause line faults; When birds feed on small animals on the cross arm, the short circuit of the small animals causes the grounding trip of the line; Larger birds or birds flying between wires during fights may cause phase to phase short circuits or single-phase ground faults.

3. Bird droppings flashover

Although some birds do not build nests on the tower, they inhabit the cross arm of the tower. Due to the pollution of insulators caused by fecal discharge, flashover accidents are prone to occur in humid and foggy air. There are three reasons:

Firstly, bird droppings are a conductive mixed liquid with high water content and electrolyte, causing flashover between charged conductors;

Secondly, feces have contaminated the linear suspension insulator string. If there is too much fecal accumulation, it can cause pollution flashover accidents on the insulator;

Thirdly, when birds are sitting directly above the insulator string pulling loose feces, the long loose feces will slide along the surface of the porcelain skirt, forming a short circuit strip of loose feces on the insulator string, causing the insulator umbrella skirt to short circuit and reducing the creepage distance. When the loose feces short circuit more than 4 insulator strings, it can cause a single-phase grounding fault accident. The most fatal impact of birds on the contact network is to reduce or short the insulation distance between the charged body and the grounding body through their own body or bird nest branches, resulting in grounding trips or even wire breakage, insulator breakdown, and other accidents. The main manifestation is that bird nest materials (branches, iron wires, etc.) form a short circuit to the contact network, causing the contact network to trip and power off, affecting normal transportation order. In severe cases, it may also lead to contact network disconnection or equipment burning.

Four major advantages of bird repellents at Tongkai Airport:

1. Patent technology of shock wave sound pressure bird repeller

Professional bird repellent, with clear levels and long-lasting prevention and control.

2. Using multi energy stimulation technology to repel birds, birds will never be able to adapt. High detection accuracy, long coverage distance,

3. Implement detailed measures for different bird infestations at airports.

4. Focusing on the research and development and production of intelligent bird repellents for 20 years, we have a complete bird repellent product system and theoretical system, and have the ability and experience to completely solve airport bird damage in one go!