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Zhejiang Online, Ningbo, October 19 (Reporter: Zhang Ji) Recently, the Xihoumen Gao Tower, the world’s tallest power transmission tower, located on Jintang Island in Zhoushan, was successfully completed. As an important part of Zhoushan’s 500-kilovolt interconnection project, the construction of this tower overcame numerous difficulties; its completion means that Zhoushan’s power grid will be upgraded from 220 kilovolts to 500 kilovolts, thereby significantly enhancing the transmission capacity of the island’s power grid. **Yang Yueping, a senior engineer at Ningbo Power Grid Company, explained that the Zhoushan 500 kV interconnection transmission and transformation project is the largest-scale and most challenging 500 kV interregional and cross-sea interconnection project undertaken by Zhejiang Power Grid to date. The project involves constructing two 380-meter-tall transmission towers in Jintang and Cezidao, Zhoushan – 50 meters taller than France’s Eiffel Tower – with a span of 2,656 meters, setting a new world record. As the responsible entity for the **973 Program project titled “Fundamental Research on Key Technologies for Corrosion and Protection of Materials Used in Offshore Engineering Equipment,”** the research findings from the Ningbo Institute of Technology and Engineering, Chinese Academy of Sciences, have also been applied in the construction of this tower. These findings have enabled the creation of a highly effective anti-corrosion protection system for this world’s tallest power transmission tower located by the sea – namely, graphene-modified anti-corrosion coatings. It is understood that since the launch of the 500 kV interconnection transmission and transformation project in Zhoushan, **the Ningbo Power Grid Company has actively worked closely with the team led by Researcher Wang Liping and Academician Xue Qunji from the Ningbo Institute of Materials Science. As a result, graphene-modified anti-corrosion coatings were applied to the 380-meter-tall tower located on Jintang Island, thereby addressing the challenges posed by high salt fog, high humidity and heat, as well as intense sunlight. Researcher Pu Jibin from the team told reporters that graphene is the thinnest anti-corrosion material available; it features a large specific surface area, excellent barrier properties, and good chemical stability. Through mechanisms such as graphene-based barrier effects, zinc activation, and metal substrate passivation, the team has successfully developed a series of high-performance anti-corrosion coating systems. “Compared to traditional coatings, graphene-modified anti-corrosion coatings maintain their color for longer periods, with a service life of up to 6 years – two to three times that of traditional coatings.” ” With the support of **973 Project funding, the team developed a series of graphene-modified anti-corrosion coatings. These coatings have passed comprehensive evaluations by testing institutions in the chemical, coating, and military industries; their salt spray resistance lasts over 9,000 hours, and various key performance indicators are significantly better than those of world-class products.