Yu Ming, Sun Linyan, Du Jianhua, Wu Fengge
School of Management, Xi'an Jiaotong University, Xi'an, China.
Int J Occup Saf Ergon. 2009;15(3):309-17. doi: 10.1080/10803548.2009.11076812.
This study used qualitative and quantitative methods, such as OWAS (Ovako working posture analysis system) and behavior observation, to analyze musculoskeletal disorder (MSD) risk factors of power line fixing work in China. Video-based sampling was used to record and analyze the frequency and posture of on-pole activities. Those key subtasks showed ergonomics characteristics of on-pole fixing tasks. Insulator-fixing was the longest subtask (33% of total working time). Bar-installing was the second longest (26% of total working time). It was evident that bar-installing and insulator-fixing were full of hazardous risks. The action categories of the 2 subtasks were higher than of the other ones. The 2 subtasks were also time-consuming, difficult and induced MSDs. Assistant linemen faced more hazardous factors than chief linemen.
本研究采用定性和定量方法，如欧瓦科工作姿势分析系统（OWAS）和行为观察，来分析中国输电线维修工作中的肌肉骨骼疾病（MSD）风险因素。基于视频的抽样方法被用于记录和分析杆上作业的频率和姿势。这些关键子任务显示了杆上维修任务的人体工程学特征。安装绝缘子是最长的子任务（占总工作时间的33%）。安装横担是第二长的子任务（占总工作时间的26%）。很明显，安装横担和安装绝缘子充满了危险风险。这两个子任务的动作类别比其他子任务更高。这两个子任务也很耗时、困难且会引发肌肉骨骼疾病。辅助线路工人面临的危险因素比主管线路工人更多。
