| 高压交联聚乙烯电缆绝缘结构的可靠性设计方法 |
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| 引用本文： | 贾欣,刘英,曹晓珑,甄武旺.高压交联聚乙烯电缆绝缘结构的可靠性设计方法[J].西安交通大学学报,2002,36(8):793-797. |
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| 作者姓名： | 贾欣 刘英 曹晓珑 甄武旺 |
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| 作者单位： | 1. 西安交通大学电力设备电气绝缘国家重点试验室,710049,西安
2. 上海电缆厂线缆研究所 |
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| 摘 要： | 采用可靠性理论中的应力-强度干涉模型来设计交联聚乙烯（XLPE）电缆绝缘厚度，通过考虑绝缘强度的概率分布与所承受电压分布之间的相互干涉来计算绝缘可靠度。采用的可靠性设计方法可以使所设计的国产220kV XLPE电缆绝缘厚度从27mm减薄到23mm。计算结果表明，在制造过程中，减小绝缘厚度分布的标准差可以提高电缆的可靠度。
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| 关 键 词： | 绝缘结构 设计方法 交联聚乙烯 电力电缆 可靠性设计 绝缘强度 绝缘 厚度 |
| 文章编号： | 0253-987X(2002)08-0793-05 |
| 修稿时间： | 2002年1月18日 |
Reliability Design of the High Voltage XLPE Cables Insulation Structure |
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| Jia Xin ,Liu Ying ,Cao Xiaolong ,Zeng Wuwang.Reliability Design of the High Voltage XLPE Cables Insulation Structure[J].Journal of Xi'an Jiaotong University,2002,36(8):793-797. |
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| Authors: | Jia Xin Liu Ying Cao Xiaolong Zeng Wuwang |
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| Institution: | Jia Xin 1,Liu Ying 1,Cao Xiaolong 1,Zeng Wuwang 2 |
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| Abstract: | The stress strength interference model in the reliability theory is applied to designing the thickness of the XLPE cables insulation, and the reliability degree of XLPE cables insulation is calculated by considering the interference between the probability distribution of insulation strength and the distribution of the voltage applied to the insulation. The thickness of the 220 kV XLPE cables insulation is reduced from 27 mm to 23 mm according to reliability design method. The calculation results also indicate that the reduction of the standard deviation of the insulation thickness distribution during the production of the cables can increase the insulation reliability degree. |
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| Keywords: | XLPE power cable reliability design |
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