Installation of the distributed optical fiber monitoring device on the Han-Zheng Line has been completed,mk with tests confirming normal data channels and effective monitoring data. On February 10, the data access debugging for the distributed optical fiber monitoring system on the Han-Zheng Line was completed by the Electric Power Research Institute of State Grid Henan Electric Power Company, laying the groundwork for temperature monitoring during ice melting operations in snow and ice weather.

In recent years, global warming has caused ice-covered zones to shift northward and ice galloping areas to expand, posing serious threats to the safety of transmission lines. Accurate and timely meteorological conditions, ice galloping monitoring, and ice melting technologies are essential tools for predicting, warning, maintaining, and rescuing against ice galloping of transmission lines during snow and ice weather. Aiming to address major technical challenges in the development and safe operation of Henan's power grid, the Electric Power Research Institute has leveraged existing scientific achievements to propose an innovative solution using distributed optical sensing technology to monitor line temperature and ice thickness during the ice melting process. This solution was successfully tested during an ice melting drill on the ±800 kV Shaan-Wu Line.

The institute is advancing research on distributed optical sensing technology. Full optical fiber and refined meteorological data was integrated to enhance the monitoring accuracy of transmission line galloping. They have developed a high-precision galloping perception model based on PSO-CGAN, providing a solid theoretical foundation and practical experience for future applications in scenarios such as distributed optical fiber ice galloping and temperature monitoring.

On January 17, the Electric Power Research Institute, in collaboration with the Ultra-High Voltage Company and the Information and Communication Company, conducted a DC ice melting drill on the ±800 kV Shaan-Wu Line's OPGW cable. In the drill, a fixed DC ice melting device was utilized to deliver direct current to the ground wire, gradually increasing its surface temperature to achieve the desired ice melting effect.