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Evaluation on Voltage Withstand Index of XLPE Insulation Based on Mixed Stress Method
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Xingang CHEN1, 2, Xinyu LIU1, Zhipeng MA1, 2, Yingyue ZHU1, Yue TAN1, Weikang CUI1, Meilin WANG1
Insulating Materials | 2022, 55(5) : 68 - 75
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Insulating Materials | 2022, 55(5): 68-75
• Insulation Technology •
Evaluation on Voltage Withstand Index of XLPE Insulation Based on Mixed Stress Method
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Xingang CHEN1, 2, Xinyu LIU1, Zhipeng MA1, 2, Yingyue ZHU1, Yue TAN1, Weikang CUI1, Meilin WANG1
Affiliations
  • 1Chongqing University of Technology, Chongqing 400054, China
  • 2Chongqing Engineering Research Center of Energy Internet, Chongqing 400054, China
Published: 2022-05-20 doi: 10.16790/j.cnki.1009-9239.im.2022.05.010
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Considering the equivalence between sequential stress test and constant stress test, we proposed a mixed stress test method that the sample was applied voltage in the order of sequential advance stress-constant stress-sequential advance stress, and then the voltage withstand index n of XLPE flake sample was evaluated by this method combined with Weibull statistical analysis. The results show that the voltage tolerance index n calculated by the mixed stress test is 16.11, the deviation between it and the n evaluated by the constant stress test is 5.36%, and its total evaluation time is shortened by 98.04% than that of the constant stress test, which proves that this method can evaluate the voltage withstand index of XLPE insulation effectively.

voltage tolerance index  /  XLPE  /  electric life  /  constant stress test  /  mixed stress test
Xingang CHEN, Xinyu LIU, Zhipeng MA, Yingyue ZHU, Yue TAN, Weikang CUI, Meilin WANG. Evaluation on Voltage Withstand Index of XLPE Insulation Based on Mixed Stress Method[J]. Insulating Materials, 2022 , 55 (5) : 68 -75 . DOI: 10.16790/j.cnki.1009-9239.im.2022.05.010
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Article Info
doi: 10.16790/j.cnki.1009-9239.im.2022.05.010
  • Receive Date：2021-07-08
  • Online Date：2025-12-22
  • Published：2022-05-20
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  • Received：2021-07-08
  • Revised：2021-08-30
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    1Chongqing University of Technology, Chongqing 400054, China
    2Chongqing Engineering Research Center of Energy Internet, Chongqing 400054, China
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https://castjournals.cast.org.cn/joweb/jycl/EN/10.16790/j.cnki.1009-9239.im.2022.05.010
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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
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Genus		 种数
Number of
species		 占总种数比例
Percentage of total
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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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