State Grid Zhenjiang applies conductor lights to ensure safety

Workers from State Grid Zhenjiang Power Supply Company installed new conductor warning lights on the 35-kV Tianyuan Line crossing the G104 National Highway in Jurong, East China's Jiangsu province, on Sept 3.

The device significantly improves the visibility of transmission lines at night and in adverse weather, reducing external risks and ensuring the safe operation of the power grid.

Transmission line segments crossing roads are critical for grid security. With a vertical clearance of about 9 meters, these lines can be hard to see in low-light, rainy, or foggy conditions, making them vulnerable to accidents such as vehicle collisions.

The new conductor warning light is solar-powered and equipped with an intelligent light-sensing system that automatically switches on in dim conditions. At night, it emits high-intensity intermittent flashes visible from over 300 meters away. Waterproof, dustproof, and windproof, the device operates reliably in harsh weather and helps alert drivers to overhead lines, preventing safety incidents.

Installation was carried out through drone-assisted live-line operations. Using drones with specialized clamps, workers precisely mounted the warning lights without cutting power. Compared with traditional methods requiring outages and tower climbing, this approach cuts costs by 90 percent and boosts efficiency by 95 percent.

Once operational, the lights resemble scattered stars in the night sky, clearly warning road vehicles while strengthening protection against external damage.

In the next phase, State Grid Zhenjiang Power Supply Company will extend the technology to other key crossing segments, further enhancing grid security and supporting the development of a more resilient power network.