Microstructure analysis of AC corona aging of silicone rubber

Xie, Congzhen; Zhang, Yao; Wang, Jianguo; Liu, Yang; Hao, Yanpeng; Gao, Mingzhen

doi:10.1109/icpadm.2009.5252387

Cited by 6 publications

(3 citation statements)

References 4 publications

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“…The holes appearance can be attributed to the evaporation of volatile components during the aging process [26]. In fact, it has been reported that the distribution of the surface into blocks and the appearance of cracks is a sign of aging of the material [27]. These observations are very consistent with those reported in previous works [18], [19],[26].…”

Section: Resultssupporting

confidence: 90%

Effects of electrical aging on the structural and physicochemical properties of crosslinked polyethylene (XLPE) cable insulation material

Hedir¹,

Slimani²,

Moudoud³

et al. 2022

Eng. Res. Express

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The aim of work is to highlight the evolution of physico-chemical properties of peroxide crosslinked polyethylene (XLPE) insulation material exposed to electrical aging. Specific analysis and characterization studies were carried out to determine the effect of electrical aging on different samples at micro and macro levels. Based on the analytical investigations, it was shown that electrical aging yielded significant changes in the chemical and thermal characteristics of XLPE. It was also showed that property loss increased with the aging time.

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Section: Resultssupporting

confidence: 90%

Effects of electrical aging on the structural and physicochemical properties of crosslinked polyethylene (XLPE) cable insulation material

Hedir¹,

Slimani²,

Moudoud³

et al. 2022

Eng. Res. Express

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“…The advantage of EDS is that it could be used along with a scanning electron microscope (SEM) so that the element composition of a specific area could be acquired and researchers could compare the test results of different areas to study the relationship between microstructural appearances and the element composition [8].…”

Section: Appearances Of Samples After Testsmentioning

confidence: 99%

Non-destructive Condition Assessment of silicone rubber composite insulators

Chen¹,

Rao²,

Chang³

et al. 2014

2014 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP)

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Thanks to its light weight and anti-pollution flashover characteristic, High Temperature Vulcanized (HTV) silicone rubber is now a main component of the housing and shed material of composite insulators, which are widely used in China in recent years. However, as a polymer material, the weathering resistance of composite insulators is an issue worthy of attention for degradation phenomena such as cracking, chalking, color fading etc. , were reported in many parts of China. In this paper, more than 30 composite insulators' shed samples were collected from the power grid of a city located in the northern part of China and a series of tests have been conducted on these samples. Test indexes were divided into into two groups to characterize the operation perfonnance of composite insulators. Color change and hardness were selected as the two key indexes for field engineers to assess the degradation level of composite insulators and the method of hardness and swelling ratio tests were applied to quantify the color change level. Tests results show that these two indexes are precise, convenient and non-destructive.

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“…Zhu et al [3] found that the hydrophobicity of HTV silicone rubber obviously decreased under AC corona. Xie et al [4] analysed the microstructure of silicone rubber after corona ageing. They found the increase of surface roughness and the breakage of the fundamental chemical chain under the effect of corona ageing.…”

Section: Introductionmentioning

confidence: 99%