南宁车辆段在南昆线管辖区段共安装红外线探测设备 39套。由于南昆线使用电力机车牵引 ,受电气化供电线路回流的影响 ,该段红外线探测设备自投入运用以来 ,钢轨中通过的强电回流及电力地线产生的回击电流严重影响了红外线探测设备的正常运行 ,造成漏探列车、丢轴、错判辆数、热 Nanning depot in the jurisdiction of Nankun line total installed 39 sets of infrared detection equipment. Due to the traction of electric locomotives on the Nankun line, due to the influence of the backflow of the electrified power supply lines, the heavy current backflow and the backwash current produced by the rails passing through the rail have severely affected the normality of the infrared detection equipment since the infrared detection equipment was put into operation. Running, resulting in missed trains, lost axis, the wrong judgment vehicles, hot