Zhengzhou, Henan: High Temperature Persistence to Ensure Power Supply, Improve Quality and Efficiency, and Eliminate Hidden Dangers

Recently, in the sweltering weather, residents’ electricity demand has surged, industrial production is also at its peak, and the power load is growing rapidly, increasing the pressure on the power grid to ensure supply. On June 16, in Heluo Town, Gongyi City, live-line workers from the State Grid Gongyi Power Supply Company were working on the 48th pole of the 10 kV Luoguan Line to disconnect branch line leads, ensuring stable power supply during the high-temperature weather.

Before the operation, the workers used various testing tools to thoroughly inspect the insulation rods, insulating gloves, and insulating blankets to ensure that these tools had good insulation performance and were free from damage or aging issues. Once everything was ready, the workers, dressed in heavy insulating suits, boarded the bucket truck and slowly moved to the high-altitude work site. The insulating suit was airtight, and in the scorching weather, it felt like a ‘mobile steamer.’ Despite the unbearable heat, the workers did not slack off at all.

‘The power test is complete, and there is no leakage on the pole body or crossarm!’ The worker in the bucket reported the power test situation via walkie-talkie. The work supervisor replied via walkie-talkie, ‘The conditions are suitable for operation, begin the operation!’ After receiving confirmation, the workers in the bucket cooperated seamlessly, carefully setting up the insulation shielding measures for the live wire and the grounding body in the order of near to far, bottom to top, and live first then grounded. Next, they methodically carried out the lead removal work. After the leads were removed, they were securely fixed, strictly controlling the safe distance between the live leads and the pole and crossarm, and between the live leads and the non-live leads, ensuring compliance with safety standards. After 1.5 hours of hard work, they successfully completed the task of disconnecting the branch line leads.

With the arrival of the summer electricity peak, to ensure the safe and stable operation of the power grid, the State Grid Gongyi Power Supply Company has comprehensively strengthened equipment inspection work. Considering that mountain lines are easily affected by high temperatures, the inspection time for key sections has been adjusted to the peak load period, and the distribution lines and transformers in the area are monitored around the clock. The staff uses infrared temperature measurement, drone inspections, and other means to record equipment operation data in real-time, promptly identifying and addressing potential hidden dangers. The company’s disciplinary inspection commission regards safety production and power supply supervision as important aspects of political supervision, increasing the inspection of the implementation of various tasks for the summer peak, urging all units to shoulder the responsibility of ensuring supply, and implementing detailed high-temperature power supply quality service measures to ensure safe and reliable power supply. At the same time, the company closely monitors weather changes, strengthens load forecasting and power balance analysis, strictly implements the principle of ‘restore power first, then repair,’ interprets responsibility and commitment with sweat, provides a solid power guarantee for local economic and social development and residents’ cool summer.

As of now, the State Grid Gongyi Power Supply Company has completed 443 live-line operations, eliminated 385 equipment hidden dangers, and avoided power outages for more than 13,000 households and enterprises. Facing the continuous ‘baking’ test, the State Grid Gongyi Power Supply Company has responded quickly and taken active actions to fully ensure the stable power supply in the area. (By He Libo, Yang Haitao)