电力电缆技术的发展与研究动向

电力电缆广泛应用于城市电网中,经历了从充油电缆(OF电缆)、钢管电缆到交联聚乙烯电缆(XLPE电缆)的发展过程。XLPE电缆与其他电缆相比,有不需要供油、供气设备、防火性能好、安装维护简单等优良性能,被越来越多的国家所采用。电力电缆的安全运行关系到城市电网的安全可靠性,逐渐受到了各国的高度重视。提高高压电缆路径通道的管理水平、安全运行以及输送能力,其关键技术的研究非常重要。笔者叙述了电力电缆及其附件相关技术的研究状况和今后的发展趋势,得出提高城市电网的可靠性和安全性,降低运行成本是今后的发展趋势。

Recent Research Status of Techniques for Power Cables

Power cables are widely used in urban power systems and have experienced the process from OF Cable to XLPE cable. With the increasing demands for electrical energy,energy transmission voltages of cable system are also increasing. Today,the operation voltage of extruded transmission power cables has increased to 500 kV. Recently,because of the excellent properties of XLPE cable,more and more countries have tendency to adopt XLPE cables,thereby paying special attention to the security operation of cable system is very necessary. In this paper,recent research status home and abroad of the techniques of power cables and accessories are reviewed,and possible trends of development of cable techniques have been stated.