Core Viewpoint - The successful commissioning of China's first high-voltage cable line using domestically produced conductive carbon black shielding material marks a significant milestone in the country's self-sufficiency in high-voltage cable shielding materials and their core raw material, high-performance conductive carbon black [1][3]. Group 1: High-Voltage Cable Line - The newly commissioned 110 kV high-voltage cable line in Dongguan spans 6 kilometers and is the first overhead line relocation project for a cross-river tunnel in the city [1]. - This project represents the first application of domestically produced conductive carbon black shielding material in high-voltage cables, achieved after 6 years of concentrated efforts [1]. Group 2: Collaborative Efforts - A joint team comprising over 10 enterprises, universities, and research institutions, led by China Southern Power Grid, focused on key technologies such as quality control of shielding materials and the physical and chemical structure of conductive carbon black [1]. - The team successfully developed proprietary 110 kV and 220 kV cable (including submarine cables) semi-conductive shielding materials and conductive carbon black material systems [1]. Group 3: Product Development - In November 2024, two new products, "Conductive Carbon Black for 110 kV and 220 kV Cable Semi-Conductive Shielding Material" and "Semi-Conductive Shielding Material for 110 kV and 220 kV Cables," passed technical appraisal by the China Machinery Industry Federation, reaching international advanced levels [1]. Group 4: Company Profile - LianKe Technology has successfully launched a project with an annual production capacity of 50,000 tons of carbon black for high-voltage cable shielding materials, primarily for land cables [2]. - The company is also advancing a second phase project through refinancing, aimed at producing conductive carbon black for high-voltage submarine cable shielding materials, thus achieving domestic production [2]. - LianKe Technology is one of the main producers of carbon black and white carbon black in China, with a balanced production capacity of 200,000 tons for white carbon black and 225,000 tons for carbon black [2].
联科科技的导电炭黑用于高压电缆线路成功送电