Dynamic risk evaluation and control of electrical personal accidents

Hengqi Zhang, Hua Geng, Huarong Zeng and Li Jiang

Reliability Engineering and System Safety, 2023, vol. 237, issue C

Abstract: The complex and variable operation environment poses a challenge to risk control of electrical work. Many existing methods have difficulty in dynamically controlling the risk of time-varying causes using accident investigation reports. This paper proposes a dynamic risk control method for electrical personal accidents, and evaluates the risk control measures. According to the occurrence time, accident reports are rolling divided into training sets and test sets, and two accident causation networks are constructed respectively. Next, a set-based index is proposed to measure the similarity between the training ranking and test ranking. Finally, two dynamic risk control strategies, without and with cause constraint, are proposed respectively, and quantitative risk analysis is given. The former calculates the cause control compliance rate under an expected risk transmission decline rate, and the latter calculates the accident prevention rate under a maximum cause control rate. Experiments on 155 electrical personal accidents verify the effectiveness of the proposed method, and discuss the influence of network update delay.

Keywords: Electrical personal accidents; Dynamic risk control; Quantitative risk analysis (search for similar items in EconPapers)
Date: 2023
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Persistent link: https://EconPapers.repec.org/RePEc:eee:reensy:v:237:y:2023:i:c:s0951832023002673

DOI: 10.1016/j.ress.2023.109353

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