[The world's first 500 kV economical high voltage AC current limiter] A few days ago, the world's first 500kV/90kA economical high-voltage AC current limiter developed by China Xidian Group successfully completed the manual short-circuit test and was successfully put into operation on the Shun-Guang-A line of the 500kV Guangnan Station. The successful operation of the project has filled the domestic economical AC ultra-large short-circuit current suppression technology gap, provided an economical and reliable solution for the suppression of high-voltage AC short-circuit current, and provided a strong guarantee for the reliable operation of the ultra-high-voltage large power grid. Editor/Xu Shengpeng

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• 2026.05.26 15:42
• [China's first cross sea bridge collision prevention upgrade project]
• On May 26, 2026, the 48 steel pipe pile foundations of the Hangzhou Bay Cross sea Bridge anti-collision facility upgrade and renovation project undertaken by CCCC First Highway Engineering Group Co., Ltd. Fourth Company were all completed. The first major node of the anti-collision renovation project of the first cross sea bridge in China was successfully completed, and the construction phase of the pier cofferdam entered the stage comprehensively. The project adopts the first four in one joint anti-collision system in China. After completion, the anti-collision capacity of the bridge will be increased from 5000 tons to 20000 tons, filling the gap in the systematic anti-collision upgrade of existing cross sea bridges in China. Editor/Cheng Liting

• 2026.05.26 15:42
• [Guizhou Kaiyang Expansion of Lithium Battery Positive Electrode Material Project]
• On May 21, 2026, the Kaiyang Branch of Guiyang Ecological Environment Bureau released the first information disclosure on the environmental impact assessment of the Guizhou Zhongwei Xingyang Energy Storage High end Phosphorus based Positive Electrode Material Industrialization Project. According to public information, the project is invested and constructed by Guizhou Zhongwei Xingyang Energy Storage Technology Co., Ltd. with a total investment of 1.8 billion yuan. The project plans to build a high-pressure solid lithium iron phosphate production workshop and related auxiliary facilities, environmental protection facilities, etc. The expansion will be built within the existing factory area without adding land occupation.Editor/Cheng Liting