一次对生产区一根闲置管道进行切割拆除作业 ,电气焊工常鸣接受了设备安装公司安排的这一任务。常鸣按时来到作业现场 ,一边准备氧气、乙炔、割枪 ,一边问道 :“置换分析没有？须请安全部门办证。”“办啥证？这根管子很长时间就没用了。”施工作业负责人说。“那不行！必须办 Once on the production area of ​​an idle pipe cutting and removal operations, electric welder Chang Ming accepted the equipment installation company arranged for this task. Chang Ming came to the job site on time, while preparing oxygen, acetylene, torch, while asked: “Replacement analysis did not have to ask the security department certification.” “What card? This tube for a long time useless. Construction operations official said. ”That does not work! Must do