Our company has successfully developed ± 800kV UHV rubber damping members Since 2008, China's power transmission technology over a long period of research, such as the Jinsha River ± 800kV HVDC transmission project design, developed a series of technical norms and standards; determine the inverter, converter transformers and other main equipment wiring way, insulation levels and load capacity; determining DC system control and protection configuration; independent research or the introduction of related equipment, and mastery of UHVDC key technologies, including: six inches and thyristor inverter, converter transformers manufacturing technology casing DC, AC / DC filters, smoothing reactors, isolation switch and quick grounding switches, surge arresters and other equipment, control and protection and measuring equipment, each pole two twelve-pulse converter in series construction and operation of technology, external insulation design techniques, and new technologies to meet the requirements of environmental protection and so on, so that our HVDC technology residing in the international advanced level.
       Three of the Nanjing Rubber Co., Ltd. in the past two years, based on a large number of domestic enterprises supporting line equipment ± 500kV high voltage, ± 800kV HVDC transmission damping rubber pieces on the accumulation of a large number of its own technology, the formation of similar foreign products beyond recipe system for power transmission technology advances our country has made important contributions. March 2009, the company developed ± 800kV UHV damping rubber spacer piece construction by the State Grid Electric Power Research Institute Beijing formally tested in full compliance with GB / T2338-2002 standards.
        Three of the company currently has Xiangjiaba - Shanghai and several other finalists supporting ± 800kV UHV. Is expected in Xiluodu left - make an important contribution to the Suzhou Nam UHV DC and many millions of volts AC UHV construction stage - Zhuzhou, Xiluodu right - west of Zhejiang, Jinping.