Studies on the Effect of Accelerated Thermal Aging on Electrical and Physicochemical Properties of XLPE Cable

被引：0

作者：

金天雄 ^{[1
]}

金之俭 ^{[2
]}

江平开 ^{[1
]}

朱子述 ^{[2
]}

刘飞 ^{[1
]}

金义天 ^{[3
]}

机构：

[1] Shanghai Key Lab.of Electrical Insulation & Thermal Aging,Shanghai Jiaotong Univ.

[2] Inst.of High Voltage and Insulation Technology,Shanghai Jiaotong Univ.

[3] Kim Chaek Univ.of Technology

来源：

Journal of Shanghai Jiaotong University | 2007年 / 01期

关键词：

electrical and physicochemical properties; accelerated thermal aging; crosslinked polyethylene (XLPE) cable insulation;

D O I：

暂无

中图分类号：

TM247 [电力电缆];

学科分类号：

0805 ; 080502 ; 080801 ;

摘要：

The degradation of crosslinked polyethylene (XLPE) cable insulation during service, such as thermo-oxidation and water treeing may lead to a premature electrical breakdown of the XLPE insulation cables. Therefore, it is necessary to optimize the period of replacement to evenly distribute the replacement cost by ascertaining the deterioration degree. Estimation of the aging degree is at present the most important task for diagnosis of the residual lifetime of the power cable insulation. This paper presents a study on the changes in the dielectric properties of the thermally aged XLPE cables in the frequency range from 0.07～10 MHz. Based on electrical and physicochemical characterization, some new "dactylograms" for the thermally aged XLPE cable insulation have been proposed.

引用

页码：91 / 95

页数：5

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