交联聚乙烯和EPR电缆绝缘在潮湿条件下的加速老化及其对电气特性的影响

ICSD'98. Proceedings of the 1998 IEEE 6th International Conference on Conduction and Breakdown in Solid Dielectrics (Cat. No.98CH36132) Pub Date : 1998-06-22 DOI:10.1109/ICSD.1998.709294

S. Nikolajevic

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引用次数: 2

摘要

本文研究了交联聚乙烯(XLPE)乙丙橡胶(EPR)电缆绝缘材料吸水后电气特性的变化。对水树阻燃交联聚乙烯(TR-XLPE)和蒸汽固化EPR两种交联聚乙烯和EPR电缆绝缘材料进行了试验研究。试验时，将自来水(1)注入电缆导体，电缆两端关闭;(2)注入电缆导体，电缆两端打开;注入金属屏，电缆两端关闭。在TR交联聚乙烯和EPR电缆中存在的水受到电应力和加热。在不同老化温度下，对TR交联聚乙烯(XLPE)和EPR电缆绝缘的电气特性与老化时间的关系进行了试验。

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Accelerated aging of XLPE and EPR cable insulations in wet conditions and its influence on electrical characteristics

This paper presents the results of an investigation into changing of crosslinked polyethylene (XLPE) ethylene-propylene rubber (EPR) cable insulations on electrical characteristics due to water absorption. The experimental set up was made for the following XLPE and EPR cable insulations: steam and dry cured with water tree retardant crosslinked polyethylene (TR-XLPE) and steam cured EPR. During tests, the tap water was injected (1) into the cable conductor with cable ends closed, (2) into the cable conductor with cable ends opened and into the metallic screen with the cable ends closed. The presence of water in TR XLPE and EPR cables was subjected to electrical stress and heating. The tests of electrical characteristics of TR XLPE and EPR cable insulations were performed as a function of aging time at different aging temperatures.

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来源期刊

ICSD'98. Proceedings of the 1998 IEEE 6th International Conference on Conduction and Breakdown in Solid Dielectrics (Cat. No.98CH36132)

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