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Study on detection and flow field effect of overheating gas derivatives in household wire insulation
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Xiao WU1, Ping YAO2, Wenbin ZHAO1
Insulating Materials | 2024, 57(2) : 112 - 120
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Insulating Materials | 2024, 57(2): 112-120
• Test and Analysis •
Study on detection and flow field effect of overheating gas derivatives in household wire insulation
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Xiao WU1, Ping YAO2, Wenbin ZHAO1
Affiliations
  • 1College of Electrical Engineering, Shanghai University of Electric Power, Shanghai 200090, China
  • 2Jiangsu Shilin Electrical Equipment Co., Ltd., Zhenjiang 212200, China
Published: 2024-02-20 doi: 10.16790/j.cnki.1009-9239.im.2024.02.016
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In order to quickly detect the overheating defects of wire insulation materials by using the key parameters of gas derivatives, the relationship curves between the concentration of gas derivatives and the temperature wire insulation materials were obtained through experiments. A thermoelectric coupling simulation model was established to simulate the effects of wire parameters, wire laying mode and ambient temperature on wire insulation temperature. A heat-flow coupling simulation model was established to simulate the effects of overheating defect location, threading tube horizontal length, and gas class on the sensor response time of escaped gas derivatives in the fluid field. The weight of influence degree was determined by orthogonal test. The results show that CH4, C2H2, and CO are the main gases escaping from overheating defects of PVC insulation material. The selection of wire parameters has the greatest influence on insulation material temperature. The type of detected gas has the greatest influence on the response time of sensors.

insulating material  /  gas derivatives  /  overheating defect  /  fluid field
Xiao WU, Ping YAO, Wenbin ZHAO. Study on detection and flow field effect of overheating gas derivatives in household wire insulation[J]. Insulating Materials, 2024 , 57 (2) : 112 -120 . DOI: 10.16790/j.cnki.1009-9239.im.2024.02.016
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Year 2024 volume 57 Issue 2
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Article Info
doi: 10.16790/j.cnki.1009-9239.im.2024.02.016
  • Receive Date：2023-03-07
  • Online Date：2025-12-22
  • Published：2024-02-20
Article Data
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History
  • Received：2023-03-07
  • Revised：2023-04-11
Affiliations
    1College of Electrical Engineering, Shanghai University of Electric Power, Shanghai 200090, China
    2Jiangsu Shilin Electrical Equipment Co., Ltd., Zhenjiang 212200, China
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Citations
表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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