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接触网用27.5k V电缆因GIS开关柜的使用、占用空间小和免维护的特点在我国高速铁路广泛使用。然而,运用以来发生的故障表明,高压电缆对牵引供电专业还是新生事物,运行维护管理经验明显不足。做好高压电缆的运行维护管理是供电专业近期必须攻克的技术难题。本文对近年来发生的高铁接触网电缆故障进行了分析,并对高压电缆的设计、施工和运行维护管理提出建议。
Catenary 27.5k V cable because of the use of GIS switchgear, small footprint and maintenance-free features widely used in China’s high-speed railway. However, the faults that have occurred since the application indicate that the high-voltage cable is still a new thing for the traction power supply, and the operation, maintenance and management experience is obviously insufficient. Good high-voltage cable operation and maintenance management is the power supply professional must overcome the recent technical problems. In this paper, the high-speed rail catenary cable failure occurred in recent years are analyzed, and the design, construction and operation and maintenance management of high-voltage cables are put forward.