The reporter learned from Qinghai Electric Power Maintenance Company that the company successfully applied X-ray non-destructive testing technology to test the 232 tensile clamps of the 29-kilo-resistant tower of the Qinghai-Tibet Networking Project.
It is reported that the ±400 kV Chaila DC line tensile clamp non-destructive testing project starts from the Qaidam converter station in the north, and reaches the Tanggula Mountain in the south, passing through Nachitai, Kunlun Mountain, Wudaoliang, Weihe and other places. The altitude is between 2790 and 3060 meters, and the environment is cold and oxygen-deficient.
"For a long time, the tensile clamps and crimping pipes of transmission lines are under the huge tension of high altitude, and the operating conditions cannot be visually recognized. The routine inspection needs to be disassembled, inspected and reassembled, and the process is cumbersome and time-consuming." Li Ming, the person in charge, told the Science and Technology Daily reporter that "X-ray non-destructive testing technology can be used for real-time wireless transmission of imaging data under the tower, and the internal defects and crimping gaps of the tensile clamp structure that are difficult to disassemble in the sky do not meet the operation and maintenance requirements. The problem forms the best high-definition light film. After software processing, image analysis is carried out to detect hidden dangers and deal with them in time, fully grasp the equipment running condition, and effectively improve the safety and quality level of transmission line operation and maintenance."
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