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首页> 外文会议>2014 International Conference on Electrical Sciences and Technologies in Maghreb >Characterization Tests and analysis of cross-linked polyethylene (XLPE) used in high voltage cables insulation under thermal constraint
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Characterization Tests and analysis of cross-linked polyethylene (XLPE) used in high voltage cables insulation under thermal constraint

机译：热约束下用于高压电缆绝缘的交联聚乙烯（XLPE）的特性测试和分析

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摘要

High voltage cables are permanently subjected to electrical and thermal operating constraints, leading to their progressive degradation and deterioration. The control and the identification of the thermal aging parameters of high voltage insulation require the use of several characterization techniques. In this work we have presented some results carried out from the use of different characterization techniques to study the mechanical and dielectric behaviors under thermal aging of cross-linked polyethylene (XLPE) used as insulation of high voltage cables. The evolution of XPE morphology under thermal aging was quantified with several physic-chemical characterization techniques such as FTIR, DSC and X-ray. The effect of thermal aging on the trapping and conduction mechanisms of XLPE under electron beam irradiation was also studied in the last part of this paper using SEM. The carried out thermal aging experiments consist to perform XLPE samples to elevate temperatures arranged from 80°C to 140°C until 5000h.
机译：高压电缆永久地受到电气和热操作的约束，导致其逐渐退化和恶化。高压绝缘的热老化参数的控制和识别需要使用几种表征技术。在这项工作中，我们提出了一些结果，这些结果是通过使用不同的表征技术来研究用作高压电缆绝缘的交联聚乙烯（XLPE）在热老化下的机械性能和介电性能的。利用诸如FTIR，DSC和X射线等几种物理化学表征技术对XPE形态在热老化下的演化进行了定量。在本文的最后部分，使用SEM研究了热老化对XLPE在电子束辐照下的俘获和传导机理的影响。进行的热老化实验包括执行XLPE样品以将温度从80°C升高到140°C直至5000h。

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