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2009年4月1日,兰州铁路局48台SS3B固定重联机车全部配属迎水桥机务段迎水桥—兰州和迎水桥—武威区段使用,在运行中,机车受电弓滑板护板频繁发生开裂、铆钉脱落、滑板断裂及弹簧支架裂损等现象,多次造成弓网设备损坏,导致迎兰线、迎武线运输中断,给铁路运输安全带来极大的危害
April 1, 2009, Lanzhou Railway Bureau 48 SS3B fixed reconnection locomotives are all equipped Yingshuiqiao Yingkou Bridge - Lanzhou and Yingshui Bridge - Wuwei section of the use, in operation, the locomotive pantograph skateboard frequent occurrence Cracking, rivets off, skateboard rupture and cracked spring bracket phenomenon, caused several times the bow network equipment damage, leading Yinglan line, Yingwu line transport interruption, to the railway transport safety hazards