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铁路牵引供电接触网设备中,跨线桥、隧道口下方接触网设备易遭受外界异物搭接,为避免由此带来的对铁路运输的干扰,目前普遍在跨线桥、隧道口下方的线索采用了聚烯烃绝缘护套进行包扎防护。而在广州铁路集团公司长沙供电段,曾出现异物搭接绝缘护套导致线索烧损断线的事故,因此文章对绝缘护套实际存在的局限性进行分析,并对提出的解决方案进行了相应探讨。
In the railway traction power supply catenary equipment, the catenary bridge and the catenary equipment under the tunnel entrance are apt to be lapped by foreign bodies. In order to avoid the interference to the railway transportation, the cords Using a polyolefin insulation sheath for bandaging protection. However, in the power supply section of Changsha Railway Company of Guangzhou Railway Group, there occurred an accident that the foreign material lapped the insulation sheath and led to the clues being burned and broken. Therefore, the article analyzed the practical limitations of the insulation sheath and gave corresponding solutions to the problems Discussion.