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Human Operating Risk Assessment for Outdoor Terminal Box of Electric Power

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Abstract

The outdoor terminal box is the basic node of the power Internet of Things as an intermediate link between outdoor electrical equipment and indoor equipment, like measurement and control, protection, communication and other equipment. Terminal boxes and terminals need to be regularly checked on site, loop tests, transformations, and equipment replacement. Operator errors have become one of the main factors in outdoor terminal box accidents. In terms of human risk assessment of outdoor terminal boxes, few papers are involved. In order to correctly evaluate the influence of human factors on the failure of outdoor terminal boxes, the paper first analyzes the human behavior factors of outdoor terminal box operators, the common performance conditions of the CREAM (Cognitive Reliability and Error Analysis Method) model is used to analyze the human behavior mechanism and behavior reliability factors during the operation of the terminal box. Then, the SLIM (Success Likelihood Index Method) model is used to calculate the probability of human error. The proportional failure model is used to calculate the failure rate of the outdoor terminal box itself. Finally, taking a circuit breaker terminal box as an example for simulation, the probability of human error is 1.56%, the equipment failure rate is 0.84%, the risk value of the system is 10.7%, and the risk level of the system is 3. From the probabilistic perspective, it shows that human factors have a greater influence on the causes of accidents.

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The data and materials involved in the article are fully disclosed in the article.

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Funding

National Natural Science Foundation of China (51707135); Science and Technology Project of Yunnan Power Grid Co., LTD. (YNKJXM20190041).

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Authors and Affiliations

  1. School of Marxism, Wuhan University, Wuhan, China

    Wenyu Wang & Zhengqing Dai

  2. Electronic Information School, Wuhan University, Wuhan, China

    Jiahao Rao & Meng Tian

Authors
  1. Wenyu Wang
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  2. Zhengqing Dai
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  3. Jiahao Rao
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  4. Meng Tian
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Contributions

Zhengqing Dai put forward the problems to be solved in this paper and solutions, Wenyu Wang was mainly responsible for the writing of the paper and theoretical derivation, Meng Tian and Jiahao Rao were mainly responsible for the realization of theoretical programming and the verification of experimental results.

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Correspondence to Meng Tian.

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Wang, W., Dai, Z., Rao, J. et al. Human Operating Risk Assessment for Outdoor Terminal Box of Electric Power. Wireless Pers Commun 126, 2303–2319 (2022). https://doi.org/10.1007/s11277-021-09067-x

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