The invention relates to a high voltage waterproofing XLPE insulated power cable. The cable comprises an insulated wire core, the insulated wire core is composed of a metal inner sheath, the metal inner sheath is a spiral wrinkled aluminum plastic inner sheath, the inner sheath is provided with a double-layer fire-resistant mica belt, the fire-resistant mica belt is provided with an outer sheath, and the outer sheath is a polyethylene outer sheath. The insulating core is composed of a conductor, an insulating layer, a shielding layer and a water-resisting expansion belt. An insulating layer is arranged outside the conductor, and the insulating layer is a cross-linked polyethylene insulating layer. A semi-conducting shielding layer is arranged outside the insulating layer, and a water-resisting expansion belt is arranged outside the semi-conducting shielding layer. The invention has the advantages of simple structure, good water-retardant effect, good fire-retardant effect, light weight, bending resistance and good bearing and tensile effect.
【技术实现步骤摘要】
高压防水交联聚乙烯绝缘电力电缆
本专利技术涉及一种直埋地下、隧道或管道中的电缆，尤其涉及一种高压防水交联聚乙烯绝缘电力电缆。
技术介绍
随着人们对电缆绝缘吸水和水树的研究及认识的加深，人们越来越意识到防水性能对中高压电力电缆的重要性，在地下水位较高或常年多雨地区（比如我国长江以南地区），越来越多的用户对电缆提出了防水的要求。
技术实现思路
本专利技术为了解决以上问题提供了一种结构简单、阻水效果好、阻燃效果好、重量轻、耐折耐弯、承压承拉力效果好的高压防水交联聚乙烯绝缘电力电缆。本专利技术的技术方案是：所述的电缆包括绝缘线芯，所述的绝缘线芯外设置金属内护套构成缆芯，所述的金属内护套为螺旋皱纹铝塑内护套，所述的内护套外设置双层耐火云母带，所述的耐火云母带外设置外护套，所述的外护套为聚乙烯外护套，所述的绝缘线芯由导体、绝缘层、屏蔽层和阻水膨胀带构成，所述的导体外设置绝缘层，所述的绝缘层为交联聚乙烯绝缘层，所述的绝缘层外设置半导电屏蔽层，所述的半导电屏蔽层外设置阻水膨胀带。所述的外护套外设有一层半导电膜。本专利技术结构简单、阻水效果好、阻燃效果好、重量轻、耐折耐弯、承压承拉力效...
【技术保护点】
1.高压防水交联聚乙烯绝缘电力电缆，其特征在于：所述的电缆包括绝缘线芯，所述的绝缘线芯外设置金属内护套构成缆芯，所述的金属内护套为螺旋皱纹铝塑内护套，所述的内护套外设置双层耐火云母带，所述的耐火云母带外设置外护套，所述的外护套为聚乙烯外护套，所述的绝缘线芯由导体、绝缘层、屏蔽层和阻水膨胀带构成，所述的导体外设置绝缘层，所述的绝缘层为交联聚乙烯绝缘层，所述的绝缘层外设置半导电屏蔽层，所述的半导电屏蔽层外设置阻水膨胀带。
【技术特征摘要】
1.高压防水交联聚乙烯绝缘电力电缆，其特征在于：所述的电缆包括绝缘线芯，所述的绝缘线芯外设置金属内护套构成缆芯，所述的金属内护套为螺旋皱纹铝塑内护套，所述的内护套外设置双层耐火云母带，所述的耐火云母带外设置外护套，所述的外护套为聚乙烯外护套，所述的绝缘线芯由导...
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