Occupational fatigue and influencing factors of live-line power distribution workers
- VernacularTitle:配网不停电作业人员职业疲劳现状及影响因素
- Author:
Ruijian PAN
1
;
Conghan LIU
2
;
Xin LU
2
;
Chu CHEN
2
;
Min LI
1
;
Lei LIU
1
Author Information
- Publication Type:Investigation
- Keywords: power distribution; live-line work; fatigue; extreme weather; overtime; musculoskeletal disorder
- From: Journal of Environmental and Occupational Medicine 2026;43(2):196-200
- CountryChina
- Language:Chinese
-
Abstract:
Background Fatigue among distribution network live-line workers in complex operational environments has become increasingly severe and requires widespread attention. Objective To investigate the positive rates of fatigue and associated influencing factors of live-line power distribution workers, and to make a reasonable strategy to reduce the fatigue of front-line workers. Methods Power supply companies in Guangdong, Guangxi, and Yunnan provinces were selected by cluster sampling in 2023, and all front-line live-line workers in the selected companies were recruited. The questionnaire used in this study consisted of two parts: one was the Fatigue Scale-14 (FS-14) for investigating fatigue status and the other was for associated influencing factors. A FS-14 score greater than 3 points was defined as fatigue.
\begin{document}$ {\chi }^{2} $\end{document} 1341 questionnaires were distributed, and1217 valid questionnaires were recovered, with a valid response rate of 90.75%. The average fatigue score of the participants was (6.84±3.79) points, and a total of1054 participants scored over 3, resulting a fatigue positive rate of 86.6%. The logistic regression model showed that working under extreme weather (OR=2.03, 95%CI: 1.38, 2.98), overtime 2-3 times a week (OR=5.24, 95%CI: 1.28, 21.40), overtime everyday (OR=6.95, 95%CI: 1.71, 28.27), frequent wrist rotation (OR=1.95, 95%CI: 1.08, 3.51), and leaning back slightly (OR=2.94, 95%CI: 1.19, 7.28) associated with higher positive rates of fatigue. Conclusion The high positive rate of fatigue among live-line power distribution workers suggests severe fatigue issues. Extreme weather conditions, working overtime frequency, and maintaining wrist rotation and backward bending postures during work are main factors affecting their fatigue.
