高压直流挤包绝缘电缆系统标准对比及试验现状

Standard Comparion and Testing Status of HVDC Extruded Insulation Cable Systems

简要回顾了国内外直流挤包绝缘电缆系统标准的发展历程,并对国际大电网会议技术手册、国际电工委员会标准和中国国家标准的适用范围及主要内容进行了对比分析,探讨了这些标准中直流电缆系统的鉴定试验方法,包括热稳定试验和预鉴定扩展试验,最后介绍了国内±400 kV及以上直流电缆系统的试验现状。

Development history of the standards for DC extruded insulation cable systems in China and abroad was summarized,then comparative analysis of applicable scope and main contents of CIGRE technical brochure,IEC standard and Chinese standard was given.Qualification test methods of DC cable systems in these standards which included thermal stability test and pre-qualification extension test were discussed.Finally,current test status of DC cable systems with a voltage of±400 kV and above in China was introduced.