UNDERGROUND POWER CABLE INSULATION ELECTRICAL LIFETIME ESTIMATION METHODS

被引：0
|
作者：
Plopeanu, Mihai [1 ]
Notingher, Petru V. [1 ]
Stancu, Cristina [2 ]
Grigorescu, Sorin [1 ]
机构：
[1] Univ Politeh Bucharest, Fac Elect Engn, Bucharest, Romania
[2] INCDIE ICPE CA, Polymer Mat Lab, Bucharest, Romania
来源：
UNIVERSITY POLITEHNICA OF BUCHAREST SCIENTIFIC BULLETIN SERIES C-ELECTRICAL ENGINEERING AND COMPUTER SCIENCE | 2013年 / 75卷 / 01期
关键词：
cables; polyethylene insulation; water trees; lifetime estimation;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
During service, underground power cables are subjected to degradations due to the growth of water trees. Therefore, their lifetime is reduced. In this paper, two lifetime estimation methods for low density polyethylene insulated underground cables subjected to electrical fields in the presence of water are presented. Both methods are based on laboratory accelerated ageing tests using high fields (1... 5 kHz). The first method (A) relies on nominal field tests while the second one (B) relies on high intensity field tests. The advantages and disadvantages of each method are presented and the conclusion that method A is more efficient is reached.
引用
收藏
页码：223 / 238
页数：16
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