The island's electricity environment has always plagued the local residents' production and living. Due to the continuous increase of power capacity, there are obstacles in power transmission. Residents living on the island are often power-cut and even are still in the middle of diesel power generation and candle lighting Electricity state. December 17, through the China Electricity Council and the Jiangsu Provincial Economic and Information Technology Commission jointly identified two transit transit technology Zhongtian Sci-Tech new technology to solve this problem. Zhongtian Science and Technology Submarine Cable The two new technologies that passed this identification are the world's first "AC 500kV XLPE insulated optical fiber submarine cable (including soft joint)" and the first "three-core 220kV submarine fiber composite Submarine cable (including soft joints) ".
With a vast sea area of ​​3 million square kilometers and 18,000 kilometers of coastline, China has over 6,000 islands along the coast. Experts pointed out that the use of submarine cables in the world has been more than one hundred years. The technologies are mainly concentrated in oil-filled insulated cables, oil-impregnated paper insulated cables and XLPE insulated cables. EHV submarine cables of 500 kV and above are still in the blank. China's recent large island networking project, due to the lack of 500kV UHV XLPE submarine cable, and had to choose expensive imported oil-filled cable. Zhongtian Science and Technology 500kV submarine optical composite cable products successfully developed, will fill the gap of the international high-voltage submarine cable industry.
According to Zhongtian Science and Technology Submarine Cable Co., Ltd. Professor Xie Shuhong introduction of senior engineer, transit technology 500kV submarine optical composite cable new technology has practical engineering needs, the State Grid Zhejiang Electric Power Company plans to Ningbo, Zhoushan, the transformation of electrical engineering, planning and application 500kV submarine composite optical cable new technology, engineering, including the laying of Zhenhai to Dapeng Submarine transmission cables, and through the overhead lines via Jintang Island, Booklet Island and other islands will be the power grid Zhoushan Island, opening Zhoushan and the mainland network of the second channel.
The data show that China's coastal / offshore areas suitable for offshore wind power development of rich regional resources, available wind energy resources of more than 750 million kilowatts, of which about 250 million kilowatts offshore, about 500 million kilowatts far. The construction of "resource-conserving and environment-friendly" offshore wind farms has just started, requiring a large number of submarine optical cables to be used to land the power of offshore wind farms. Experts pointed out that China will usher in the climax of the construction of offshore wind power, offshore power transmission to the shore if the conditions permit, the state encourages the use of three-core high-voltage submarine cable, broad application prospects.
Zhongtian Science and Technology successfully developed and produced a three-core 220kV submarine long-distance optical composite cable system, especially for large-length cross-linking, large-length core degassing technology into the cable technology, large section water blocking technology, enhanced equipotential Fiber unit and its factory joints with advanced technology and innovative. Zhang Jianmin, chief engineer of Zhongtian Science and Technology Submarine Cable, said that the successful development of the three-core 220kV submarine optical composite cable system has formed a good design, production and testing system and trained a batch of professionals.
The single-core 500kV and triple-core 220kV submarine cables developed by Zhongtian Science and Technology Submarine Cable broke the key technical problems such as large overall length, large weight, high strength, long time of outgassing, waterproof, anti-corrosion and optoelectronic integration. Senior Engineer Yang Yingjian, a senior expert on high-voltage cables, said that Zhongtian Science and Technology Co., Ltd. has conducted research on the production technology of large-length and high-voltage cross-linked polyethylene submarine optoelectronic composite cables and has formed a high-conductor Performance of water blocking technology, long-length XLPE insulation extrusion, outgassing and finished product manufacturing technology, factory soft joints and other technologies, product comprehensive technical performance has reached the international advanced level.
Xuetian Ling, general manager of Zhongtian Science and Technology Co., Ltd. said that as a marine high-end equipment company, the company will further increase innovation and realize the coordinated development of the ocean and the Internet economy, serve the needs of national energy construction and information security, and provide national security and social security Provide functions such as logistics information, ocean data link, external information interconnection, intelligent remote monitoring of resource development and protection of national maritime rights and interests, and continue to make new contributions to the development of marine economy in our country.
Identification by the China Electricity Council and Jiangsu Provincial Economic and Information Technology Committee jointly organized. State Grid Electric Power Research Institute, South China Electric Power Research Institute, Shanghai Electric Cable Research Institute, the State Quality Supervision and Testing Center for Wire and Cable, Electric Industrial Electrical Equipment Testing Center, China Electric Power Research Institute and from all over the country's power design, users, etc. Experts, leaders attended the appraisal meeting.
Zhongtian Science and Technology Chairman Xue Jiping and the company leaders attended the meeting.