Electric Power ›› 2021, Vol. 54 ›› Issue (4): 10-18,25.DOI: 10.11930/j.issn.1004-9649.202006164

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Analysis of DC Cable Test Standards and Key Problems in the Test of ±535 kV Cable System

ZHAO Peng1, OUYANG Benhong1,2, CHEN Zhengzheng1,2, CHEN Hong1, RAO Wenbin1, ZHAO Jiankang1, ZHANG Hao3   

  1. 1. State Key Laboratory of Power Grid Environmental Protection, China Electric Power Research Institute, Wuhan 430074, China;
    2. Xi'an Jiaotong University, Xi'an 710049, China;
    3. State Grid Shandong Electric Power Company Research Institute, Jinan 361006, China
  • Received:2020-06-15 Revised:2020-07-18 Published:2021-04-23
  • Supported by:
    This work is supported by Science and Technology Project of SGCC (Research on Operation and Maintenance Technology of Cross-sea HVDC Submarine Cable and Key Technology of Detection Robot, No.520626170046)

Abstract: How to ensure the material quality, manufacturing process of DC cable and test the reliability of DC cable system effectively has become the focus of attention. In the past decade, the test method of HVDC cable has been developed in an all-round way. The established standards or specifications, including CIGRE TB 496, GB/T 31489.1 and IEC 62895, have made clear requirements for the test methods in the development of DC cable system. In this paper, based on the experience of development of ±535 kV DC cable in China, the background of the above standards are summarized, and the differences between GB/T 31489.1 and IEC 62895 are compared. What’s more, according to the electrical performance evaluation method of insulating materials during the development process of DC cable system and the type test of electrical performance in low temperature environment, some suggestions in the standardization work are put forward, which can be used as references for established the test scheme.

Key words: HVDC cable system, GB/T 31489.1, IEC 62895, localization, electrical performance