Simulation based analysis of electrical fire risks caused by poor electric contact between plug and receptacle

Zhang, Jing; Huang, Lida; Chen, Tao; Su, Guofeng

doi:10.1016/j.firesaf.2021.103434

Cited by 16 publications

(4 citation statements)

References 18 publications

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“…Once the arc fault exists for a long time, the combustibles near the arc can be easily ignited to cause the electrical fire. Therefore, the arc fault is considered as a main cause of electrical fire [20,21].…”

Section: Fault Monitoring and Location 321 Parallel Arc Faultmentioning

confidence: 99%

Research on online monitoring and cause identification system of building electrical fire

Yang

Cai

et al. 2022

Int. J. Metrol. Qual. Eng.

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Frequent building electrical fire accidents have brought great harm to life and property. In order to prevent the occurrence of accidents and reduce the losses to the greatest extent, it is necessary to take effective measures for building electrical fires. Based on the Internet of things (IoT) technology, a system for online monitoring and cause identification of building electrical fire is proposed in this paper. For both hardware and software, this paper introduces the overall structure, component units and system functions in detail. According to the characteristics of arc fault and fire, the complete scheme of online monitoring is given, and the system workflow is also described to realize the cause identification. Finally, the effectiveness of this system is verified by practical testing. The results show that the proposed system is helpful to solve the problems in monitoring and cause identification of building electrical fire, which can not only provide decision-making basis for firefighting, but also provide strong technical support for improving the safety of low-voltage power grid.

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Section: Fault Monitoring and Location 321 Parallel Arc Faultmentioning

confidence: 99%

Research on online monitoring and cause identification system of building electrical fire

Yang

Cai

et al. 2022

Int. J. Metrol. Qual. Eng.

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“…(d) Finally, the Swedish COMSOL Multiphysics software is used by Zhang et al [59] to introduce a new fluid-solid heat transfer model coupled with contact mechanics and thermo-electric effect, in order to highlight the importance of the pressure on the failure of an electrical contact. Another COMSOL developed model is proposed in [60] to conduct research on the contact temperature characteristics in order to improve the performance of electrical contacts.…”

Section: Introductionmentioning

confidence: 99%

Numerical Simulation and Modeling of Mechano–Electro–Thermal Behavior of Electrical Contact Using COMSOL Multiphysics

Andras,

Popescu,

Radu

et al. 2024

Preprint

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Electrical contacts are important circuit components with diverse industrial applications, and their failure can lead to multiple unwanted effects. Hence, the behavior of electrical contacts is a widely studied topic in scientific literature based on various approaches, tools, and techniques. The present study proposes a numerical modeling and simulation approach based on the Holm contact theory to study the dependence between the electric potential and the temperature within an electrical contact. Structured in 5 sections, the research was conducted using COMSOL Multiphysics software and its solid-state mechanics, electric current, and heat transfer modules in order to highlight contact behavior from mechanical, electrical and thermal points of view: the von Mises stress, contact force, the electric field amplitude, the variation of the electrical potential along the current path, the temperature gradient, and dependence of temperature along the contact elements edges were obtained by simulation and graphically represented. The results are in line with the expectations and with past research that was studied in the literature review.

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“…The authors of [58] used an ABAQUS-developed thermal-electric coupled simulation to study the contact pair insertion force and obtain the contact resistance. An analysis was conducted using a new electro-thermo-mechanical contact model developed by [59] in ABAQUS and two user-defined subroutines to show how the contact state significantly influences the local heating; (d) Finally, the Swedish COMSOL Multiphysics software was used by Zhang et al [60] to introduce a new fluid-solid heat transfer model coupled with contact mechanics and the thermo-electric effect, in order to highlight the importance of pressure to the failure of an electrical contact. Another COMSOL-developed model was proposed in [61] to conduct research on contact temperature characteristics and thus improve the performance of electrical contacts.…”

Section: Introductionmentioning

confidence: 99%

Numerical Simulation and Modeling of Mechano–Electro–Thermal Behavior of Electrical Contact Using COMSOL Multiphysics

Andras,

Popescu,

Radu

et al. 2024

Applied Sciences

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Electrical contacts are important circuit components with diverse industrial applications, and their failure can lead to multiple unwanted effects. Hence, the behavior of electrical contacts is a widely studied topic in the scientific literature based on various approaches, tools, and techniques. The present study proposes a new approach to numerical modeling and simulation based on the Holm contact theory, aiming to study the dependence between the electric potential and the temperature within an electrical contact. Structured in five sections, the research was conducted using COMSOL Multiphysics software and its solid-state mechanics, electric current, and heat transfer modules in order to highlight contact behavior from mechanical, electrical and thermal points of view: the von Mises stress, contact force, electric field amplitude, variation of the electrical potential along the current path, temperature gradient, and dependence of temperature along the contact elements edges were obtained by simulation, and are graphically represented. The results show that the temperature increase follows a parabolic curve, and that for values higher than 4 mV of voltage drop, the temperature of the contact increases to 79.25 degrees (and up to 123.81 degrees for 5 mV) over the ambient temperature, thus the integrity of insulation can be compromised. These values are close (10–12%) to the analytically calculated ones, and also in line with research assessed in the literature review.

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Simulation based analysis of electrical fire risks caused by poor electric contact between plug and receptacle

Cited by 16 publications

References 18 publications

Research on online monitoring and cause identification system of building electrical fire

Research on online monitoring and cause identification system of building electrical fire

Numerical Simulation and Modeling of Mechano–Electro–Thermal Behavior of Electrical Contact Using COMSOL Multiphysics

Numerical Simulation and Modeling of Mechano–Electro–Thermal Behavior of Electrical Contact Using COMSOL Multiphysics

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