Chao News Client Correspondent Fu Yunxiao Guo Fang Reporter Shi Xiongfeng.
On the evening of December 15, snow fell in Yushan Village of Lin'an, which is nearly 1,000 meters above sea level.
State Grid Hangzhou Lin'an District Power Supply Company.
Early in the morning of December 16, Chen Lu and Wu Mingming, the operation and maintenance personnel of the transmission line of the State Grid Hangzhou Lin'an District Power Supply Company, drove to Yushan Village, Longgang Town, to conduct a special inspection of the 35,000-volt Longji Line Yushan Branch.
The altitude here is high, the temperature is lower than in the city, and the route is estimated to be covered with ice. Chen Lu turned on the weather forecast and found that the temperature in Yushan Village was already minus 8 at this time. Rain, snow and low temperatures made it very likely that there was frost in the transmission tower, so the two of them operated the drone and flew towards Tower 43, which is more than 900 meters above sea level.
Look, it's frozen. It's all icy here, and it's estimated that it's worse than Tower 36. Chen Lu muttered while operating the drone. The 35,000-volt Longche Line Yushan Branch Line is the highest transmission line in Lin'an, mainly supplying power to Guoshi Village and Yushan Village under Yuyan Mountain, and the No. 36 tower in Chen Lukou's mouth is located on the high mountain above 1,300 meters above sea level.
Photo courtesy of State Grid Hangzhou Lin'an District Power Supply Company.
After thinking for a while, Chen Lu decided to climb the tower to check the icing situation.
After a night of freezing, reaching Tower 43 became the "first hurdle" that Chen Lu and Wu Mingming needed to overcome. The dirt and cement roads are intertwined, and the rain and snow have formed a thick layer of ice after the "baptism" of low temperatures, covering the surface like a natural skating rink. The two of them held their trekking poles in one hand and tools on their backs in the other, and carefully marched towards their destination.
After ten minutes of hiking, the two reached Tower 43. Putting on protective equipment, Chen Lu began to climb the tower. Before he climbed two steps, Chen Lu's cheeks were blown red by the cold wind, and the low temperature on the surface of the tower also made him shiver from the cold.
Brother Lu, be careful when knocking on the ice. The cold wind was biting, and it was not at all useful to speak at the usual volume, Wu Ming on the side stared at Chen Lu intently, and increased the decibel and yelled. Chen Lu took out his tools and began to knock on the tower, and the ice that was originally frozen and solid was knocked to pieces and fell to the grass.
Photo courtesy of State Grid Hangzhou Lin'an District Power Supply Company.
The freezing situation is not serious, as long as the sun comes out, it is estimated that it will melt. After getting off the tower, Chen Lu explained to Wu Mingming, and started fighting again.
Is there ice on the line over there?Then continue to observe the icing. "Old Hu, how is the ice cover of your iron tower there?""* One after another, every time it snows, Chen Lu needs to confirm the icing situation of the line and the tower with the operation and maintenance personnel in the team and the volunteer ice watchers to ensure that the line can be accurately grasped in a timely manner. In the "big rear", the professionals of the State Grid Hangzhou Lin'an District Power Supply Company will also understand the tensile value of the high-altitude transmission line in real time through the "transmission panoramic monitoring group", so as to measure the icing situation.
It is reported that the State Grid Hangzhou Lin'an District Power Supply Company has launched an emergency response to rain, snow and ice, and organized various specialties of power transmission and distribution to conduct special inspections of power supply lines and equipment to keep the power grid safe. The operation and maintenance personnel set up ice observation sentinels in the mountainous areas in advance, and used advanced monitoring equipment, drones, sentinel points, etc., to continuously monitor the icing situation of the tower and the wire, strengthen the monitoring of the line where the temperature is below zero for more than 24 hours, and grasp the icing situation of the line in time. 15 rescue teams of 112 emergency rescue personnel have been assembled, in addition to the power generation vehicle, emergency lighting equipment, emergency repair equipment and other conventional materials, but also equipped with snow chains, anti-slip grass mats, etc., to prepare for emergency rescue in an emergency, to ensure the production and living of the masses electricity.
*Please indicate the source".