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Research on Damping Process of XLPE Distribution Network Cables Based on Comprehensive Electrical Performance Evaluation
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Simin LUO, Le LUAN, Zhong XU, Weinan FAN, Yiping CUI, Shuo XU
Insulating Materials | 2022, 55(10) : 47 - 53
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Insulating Materials | 2022, 55(10): 47-53
• Insulation Technology •
Research on Damping Process of XLPE Distribution Network Cables Based on Comprehensive Electrical Performance Evaluation
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Simin LUO, Le LUAN, Zhong XU, Weinan FAN, Yiping CUI, Shuo XU
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  • Guangzhou Power Supply Bureau of Guangdong Power Grid Co., Ltd., Guangzhou 510000, China
Published: 2022-10-20 doi: 10.16790/j.cnki.1009-9239.im.2022.10.008
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In order to study the effects of different damping paths on cables, we set up a variety of endogenous and exogenous damping paths according to operating experience. Accelerated damping test were conducted on cables for 90 cycles, and the insulation resistance, partial discharge, and depolarization current were measured regularly. Then the moisture state of the cable was comprehensively evaluated by TOPSIS method. The results show that during cable operation, moisture can enter and rapidly spread inside the cable through the broken body, cable joints, and various interface structures of the cable terminals. The degradation effects of moisture through cable joints and endogenous moisture on the insulation is the most prominent, which should be prevented and taken seriously. Furthermore, the comprehensive evaluation of electrical properties based on insulation resistance, partial discharge, and depolarization current can effectively explore the damping process and identify the moisture state, which can be applied to practical engineering to evaluate the damp problem of distribution network cables in warm-damp environment.

damp cable  /  electrical property evaluation  /  TOPSIS  /  cable joint  /  endogenous moisture
Simin LUO, Le LUAN, Zhong XU, Weinan FAN, Yiping CUI, Shuo XU. Research on Damping Process of XLPE Distribution Network Cables Based on Comprehensive Electrical Performance Evaluation[J]. Insulating Materials, 2022 , 55 (10) : 47 -53 . DOI: 10.16790/j.cnki.1009-9239.im.2022.10.008
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Article Info
doi: 10.16790/j.cnki.1009-9239.im.2022.10.008
  • Receive Date：2021-10-04
  • Online Date：2025-12-23
  • Published：2022-10-20
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  • Received：2021-10-04
  • Revised：2021-11-01
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    Guangzhou Power Supply Bureau of Guangdong Power Grid Co., Ltd., Guangzhou 510000, China
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https://castjournals.cast.org.cn/joweb/jycl/EN/10.16790/j.cnki.1009-9239.im.2022.10.008
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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
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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