我局广州车辆段在三T试验台主管路上加装孔径为0.45毫米的放风阀,每天从试验的10多个三通阀里发现二、三个不是充气沟过短就是过长的不良三通阀(原来的三T试验台试不出三通阀过敏故障),多年来消灭了段修三通阀不良事故。今年初,我们推广了广州车辆段的经验。株洲、衡阳车辆段三T试验台都相继加 I Bureau of Guangzhou depot in the three T test tube in charge of the road to install a 0.45 mm aperture valve, daily test from the more than 10 three-way valve found two or three not inflatable ditch is too short is too bad three Valve (the original three T test bench can not detect three-way valve allergy failure), over the years to eliminate the three-way valve repair bad. Earlier this year, we promoted the experience of depot Guangzhou. Zhuzhou, Hengyang depot three T test rig have been added