As a critical component of the power transmission system, high-voltage corridors play a vital role in delivering electrical energy from power generation facilities to end users. With rapid economic development and the continuous improvement of living standards, electricity demand has been steadily increasing, thereby emphasizing the importance of ensuring the reliable operation of high-voltage corridors.

Among these, the failure of high-voltage corridors constitutes a highly hazardous condition that can severely disrupt power supply and potentially endanger personal safety. The following outlines some common causes of such failures, along with corresponding preventive measures:

1. Causes of External Damage

1.1 Weather-related Factors

Extreme weather conditions, such as storms, typhoons, heavy rain, snow, frost, and freezing rain, can lead to falling trees or broken branches, which may damage high-voltage corridors.

1.2 Animal Interference

Wildlife in outdoor environments may come into contact with high-voltage corridors, potentially damaging the power lines. For instance, birds nesting on transmission lines can cause short circuits or physical damage to the conductors. Similarly, small animals such as squirrels and rodents may climb transmission towers and gnaw on the wires, leading to insulation damage or even fire hazards.

1.3 Human-related Factors

Human activities such as mechanical construction—particularly those associated with infrastructure or road development near high-voltage corridors—pose a significant risk of external damage to the transmission lines. Furthermore, actions such as flying kites illegally, hanging objects on the lines, or unintentional contact with power transmission lines during the operation of agricultural machinery and equipment can also lead to physical damage and operational disruptions.

2. Tianyan Perception Security Radar in High-voltage Corridor Protection Against External Intrusion

 Product Introduction

• Can identify the distance, speed, and angle of intrusion targets

• Real time multi-target tracking, capable of tracking up to 32 targets simultaneously

• 24/7 operation, -40 ℃~+85 ℃ super weather resistance, fearless of any outdoor environmental impact

• Target intrusion detection range of 1~60/1~200 meters (such as crane arms, dump trucks, etc.)

• -Horizontal detection with a width of 12 °~+12 ° ensures that targets around the corridor have nowhere to hide

case application

The anti-external-damage project for a high-voltage corridor in northwest China integrates video surveillance, security radar, and audio-visual alarm systems to form an "anti-external-damage monitoring device," which is installed on the tower platform. This system primarily monitors for intrusions beneath and along the sides of the corridor’s sagging sections. If an intrusion persists for more than two seconds, the system initiates video capture and evidence collection, while the audio-visual alarm activates to deter and drive away the intruding object, thereby ensuring the high-voltage corridor remains undisturbed and protected from potential damage.