Home Journals Articles Updates About
CN
image
收藏切换
Experimental Study on Water Diffusion at Interface Between Polyurethane and Mandril of Composite Insulation Crossarm
收藏切换
PDF
Li TANG1, Zhuopeng XIE2, Lei LIU1, Zhongyuan ZHANG2, Le LI2, Hechen LIU2
Insulating Materials | 2021, 54(6) : 63 - 68
Less
收藏切换
Insulating Materials | 2021, 54(6): 63-68
• Material Research •
Experimental Study on Water Diffusion at Interface Between Polyurethane and Mandril of Composite Insulation Crossarm
Full
Li TANG1, Zhuopeng XIE2, Lei LIU1, Zhongyuan ZHANG2, Le LI2, Hechen LIU2
Affiliations
  • 1Electric Power Research Institute China Southern Power Grid, Guangzhou 510663, China
  • 2Hebei Provincial Key Laboratory of Power Transmission Equipment Security Defense, North China Electric Power University, Baoding 071003, China
Published: 2021-06-20 doi: 10.16790/j.cnki.1009-9239.im.2021.06.010
Outline
收藏切换

The composite insulation cross arm has the characteristics of light weight and high strength, which can play an important role in reducing the area of the line corridor and strengthening the insulation capacity of the power grid. The electrical insulation performance of the internal insulation interface is related to the safe and stable operation of the power system. In this study, based on IEC 62217:2012, a 144-hour water diffusion test was carried out on the interface specimens of the inner-filled composite crossarm, and the leakage current and breakdown at different stages were measured. Combined with the test results, the insulation crossarm samples were analyzed. Interface ageing characteristics under water diffusion test conditions. The results show that when the water diffusion time is 144 h, the leakage current of the sample is as high as 20 mA, which is 1000 times that of the sample without the water diffusion test, and the interface breakdown time is faster than that of the sample without the water diffusion test. 65%, water molecules have a destructive effect on the interface under the action of high temperature diffusion, and the longer the water diffusion time, the greater the damage to the polyurethane/glass fiber reinforced plastic interface.

inner filled composite cross-arm  /  water diffusion test  /  breakdown voltage  /  leakage current
Li TANG, Zhuopeng XIE, Lei LIU, Zhongyuan ZHANG, Le LI, Hechen LIU. Experimental Study on Water Diffusion at Interface Between Polyurethane and Mandril of Composite Insulation Crossarm[J]. Insulating Materials, 2021 , 54 (6) : 63 -68 . DOI: 10.16790/j.cnki.1009-9239.im.2021.06.010
Appendix
Less
Year 2021 volume 54 Issue 6
PDF
113
50
Cite this Article
BibTeX
Article Info
doi: 10.16790/j.cnki.1009-9239.im.2021.06.010
  • Receive Date：2020-05-08
  • Online Date：2026-03-03
  • Published：2021-06-20
Article Data
Affiliations
History
  • Received：2020-05-08
  • Revised：2020-06-20
Funding
Affiliations
    1Electric Power Research Institute China Southern Power Grid, Guangzhou 510663, China
    2Hebei Provincial Key Laboratory of Power Transmission Equipment Security Defense, North China Electric Power University, Baoding 071003, China
References
Share
https://castjournals.cast.org.cn/joweb/jycl/EN/10.16790/j.cnki.1009-9239.im.2021.06.010
Share to
QR

Scan QR to access full text

Cite this article
BibTeX
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
关闭全屏
  • BibTeX
  • EndNote
  • RefWorks
  • TxT
Links
Articles
Latest Articles
Most Read
Collections
Updates
Events
News
Multimedia
About
About Us
Contact
No. 86 Xueyuan South Road, Haidian District, Beijing
100081
010-62199257
qkjq@cast.org.cn

Copyright © 2025 China Association for Science and Technology. All rights reserved. For all open access content, the relevant licensing terms apply.
Sponsored by the Office of the Leading Group for Cybersecurity and Informatization of CAST, and supported by Science and Technology Review Publishing House