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Interface Pressure Evolution Law of Cable Intermediate Joint Under Silicone Grease Environment
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Lihua ZHAO1, Jiuhao QIU1, Yanshu LI2, Junwen REN1, Lichuan JIA1, Zhong WANG1
Insulating Materials | 2021, 54(6) : 74 - 78
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Insulating Materials | 2021, 54(6): 74-78
• Material Research •
Interface Pressure Evolution Law of Cable Intermediate Joint Under Silicone Grease Environment
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Lihua ZHAO1, Jiuhao QIU1, Yanshu LI2, Junwen REN1, Lichuan JIA1, Zhong WANG1
Affiliations
  • 1College of Electrical Engineering, Sichuan University, Chengdu 610065, China
  • 2Huangdao Power Supply Company, State Grid Shandong Electric Power Company, Qingdao 266000, China
Published: 2021-06-20 doi: 10.16790/j.cnki.1009-9239.im.2021.06.012
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When installing the cable accessories, we usually coat silicone grease on the interface between silicone rubber (SR) insulation of cable accessories and XLPE insulation of cable body, but the silicone rubber will affect the interface pressure after absorbing silicone grease. The interface pressure between SR and XLPE was studied by combining experiment and simulation methods. The elastic modulus variation of the silicone rubber after absorbing silicone grease was measured by experiment, and then the elastic modulus was distributed to three-dimensional model to conduct simulation. The results show that under the silicone grease environment, the greater the expansion degree of silicone rubber, the greater the mass change rate, and the smaller the elastic modulus. The interface pressure between SR and XLPE decreases with the increase of silicone grease absorption time. The larger the expansion degree of cable joint, the greater the interface pressure, and the faster the interface pressure decline speed. The interface pressure decreases slightly with the increase of friction coefficient.

cable accessory  /  interface  /  silicone rubber  /  silicone grease  /  interface pressure
Lihua ZHAO, Jiuhao QIU, Yanshu LI, Junwen REN, Lichuan JIA, Zhong WANG. Interface Pressure Evolution Law of Cable Intermediate Joint Under Silicone Grease Environment[J]. Insulating Materials, 2021 , 54 (6) : 74 -78 . DOI: 10.16790/j.cnki.1009-9239.im.2021.06.012
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Year 2021 volume 54 Issue 6
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Article Info
doi: 10.16790/j.cnki.1009-9239.im.2021.06.012
  • Receive Date：2020-07-20
  • Online Date：2026-03-03
  • Published：2021-06-20
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History
  • Received：2020-07-20
  • Revised：2020-08-28
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Affiliations
    1College of Electrical Engineering, Sichuan University, Chengdu 610065, China
    2Huangdao Power Supply Company, State Grid Shandong Electric Power Company, Qingdao 266000, China
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https://castjournals.cast.org.cn/joweb/jycl/EN/10.16790/j.cnki.1009-9239.im.2021.06.012
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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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