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首页> 外文期刊>Polymer Testing >Investigation of dielectric behavior of thermally aged XLPE cable in the high-frequency range
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Investigation of dielectric behavior of thermally aged XLPE cable in the high-frequency range

机译：热老化交联聚乙烯电缆在高频范围内的介电性能研究

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摘要

The widespread use of crosslinked polyethylene (XLPE) in the wire and cable industry may be attributed mainly to its outstanding physical and chemical properties. However, it has been recognized that degradation of XLPE insulation during service, such as thermo-oxidation and water treeing, may lead to premature electrical breakdown of the XLPE insulation cables. Diagnostic measurements would considerably assist to distinguish between bad and still good cables. Estimation of the degree of aging is at present the most important task of diagnostic methods. This paper presents a study on the thermo-oxidation-induced changes in the dielectric properties of the thermally aged 3.3 kV XLPE cables in the frequency range from 70 kHz to 10 MHz. (C) 2006 Elsevier Ltd. All rights reserved.
机译：交联聚乙烯（XLPE）在电线电缆行业的广泛使用可能主要归因于其出色的物理和化学特性。但是，已经认识到在使用过程中XLPE绝缘的退化，例如热氧化和水树，可能会导致XLPE绝缘电缆的电气过早损坏。诊断测量将大大有助于区分不良电缆和仍然良好的电缆。估计老化程度是目前诊断方法中最重要的任务。本文提出了在70 kHz至10 MHz频率范围内热老化3.3 kV XLPE电缆的介电性能的热氧化诱导变化的研究。 （C）2006 Elsevier Ltd.保留所有权利。

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