CN201556464U - 一种对绞外覆屏蔽铠装防水线缆 - Google Patents
一种对绞外覆屏蔽铠装防水线缆 Download PDFInfo
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Abstract
一种对绞外覆屏蔽铠装防水线缆，属于电线电缆技术领域。包括导体及导体外覆盖绝缘层构成的绝缘线芯和外护套，其特征是设有四组绝缘线芯对绞线和十字架，四组绝缘线芯对绞线置于十字架的四个空隙内构成圆形缆芯，在缆芯上挤包一层透明聚氯乙烯塑料膜，在塑料膜上依次绕包铝塑屏蔽带、挤包聚乙烯隔离层和包裹非磁性不锈钢带铠装层，在铠装层上挤包防水聚烯烃外护套。本实用新型结构设计科学合理，在常规六类线缆的基础上，对其工艺结构及原材料进行了改进，减小了导体电阻值，降低衰减，优化串音性能，有良好的屏蔽效果和抗压、抗外力冲击、防水等性能，完全能满足市场线缆发展的要求。
Description
技术领域
本实用新型涉及一种电缆的结构，特别是线缆的结构，属于电缆技术领域。
背景技术
目前，市场上六类网络线，主要由导体及导体外覆盖绝缘层构成的绝缘线芯，绝缘线芯成缆的缆芯和外护套等构成，已在工程中大量使用，其性能与五类，超五类相比有大幅提高，减小了导体电阻值，降低衰减，优化串音性能，受到用户的青睐，但随着工程环境的复杂变化，很多场合对此产品的性能要求不断提高，以满足特殊环境下的使用要求，如要求有良好的屏蔽效果、抗压或抗外力冲击、防水性等等，现有的线缆已不能完全满足市场的要求。
实用新型内容
本实用新型的目的就是针对现有的线缆存在的上述不足，提供一种导体电阻值小，衰减低，串音少，屏蔽效果好，抗压、抗外力冲击和防水性好的六类水平对绞外覆屏蔽铠装防水线缆。
本实用新型的目的是通过对现有的线缆的改进实现的，六类水平对绞外覆屏蔽铠装防水网络线，包括导体及导体外覆盖绝缘层构成的绝缘线芯和外护套，其特征是设有四组绝缘线芯对绞线和十字架，四组绝缘线芯对绞线置于十字架的四个空隙内构成圆形缆芯，在缆芯上挤包一层透明聚氯乙烯塑料膜，在塑料膜上依次绕包铝塑屏蔽带、挤包聚乙烯隔离层和包裹非磁性不锈钢带铠装层，在铠装层上挤包防水聚稀烃外护套。
所述的绝缘线芯由无氧铜丝外挤包高密度聚乙烯绝缘层构成。
所述的绝缘线芯对绞线中设有阻水纱。
所述的透明聚氯乙烯塑料膜的厚度为0.4-0.5mm。
本实用新型结构设计科学合理，在常规线缆的基础上，对其工艺结构及原材料进行了改进，减小了导体电阻值，降低衰减，优化串音性能，有良好的屏蔽效果和抗压、抗外力冲击、防水等性能，完全能满足市场线缆发展的要求。导体为无氧铜丝，外挤包高密度聚乙烯绝缘层，绝缘线芯两芯对绞，两芯对绞的同时加入阻水纱，阻水纱在遇水时可在很短时间内迅速膨胀数十倍，密实地填充缆芯内部的所有间隙，有效阻止水份纵向进入电缆内部，保证信号正常传输；四组对绞线芯分别放置于十字架的四个空隙内，改善串音性能；在绕包铝塑屏蔽带前先用特定模具挤包一层厚度约0.4-0.5mm透明聚氯乙烯塑料，将四对线组与十字架更有效组合成圆形，外覆铝塑屏蔽带可防止信号干扰；在铝塑屏蔽带与不锈钢带之间挤包聚乙烯作为隔离层，且具有一定的硬度，能有效解决因半成品柔软，钢带铠装时易变形或断裂的现象，铠装层采用非磁性不锈钢带，保护内部线芯及屏蔽层可能受到的外力挤压或撞击，同时可避免传统镀锌钢带因具有磁性而对信号传输的影响；电缆的最外层采用防水聚烯烃护套，此材料表面光滑，具有较好的致密性，水份极难渗透，与隔离层一并起到双层保护，有效防止使用环境中的水份径向进入缆芯内部，确保传输性能。
附图说明
图1是本实用新型的结构示意图；
图中：1高密度聚乙稀绝缘层、2导体、3阻水纱、4透明聚氯乙烯塑料膜、5铝塑屏蔽带、6聚乙稀隔离层、7非磁性不锈钢带铠装层、8防水聚稀烃护套、9十字架。
具体实施方式
以无氧铜丝为导体(2)，在无氧铜丝外外挤包高密度聚乙烯绝缘层(1)构成绝缘线芯。以两根绝缘线芯对绞，同时加入阻水纱(3)，绞成一组绝缘线芯对绞线。将四组绝缘线芯对绞线分别置于十字架(9)的四个空隙内构成圆形缆芯，在缆芯上挤包一层厚度约0.4-0.5mm透明聚氯乙烯塑料膜(4)，在透明聚氯乙烯塑料膜(4)上依次绕包铝塑屏蔽带(5)、挤包聚乙烯隔离层(6)和包裹非磁性不锈钢带铠装层(7)，在非磁性不锈钢带铠装层(7)上挤包防水聚稀烃外护套(8)。
Claims (3)
1.一种对绞外覆屏蔽铠装防水线缆，包括导体及导体外覆盖绝缘层构成的绝缘线芯和外护套，其特征是设有四组绝缘线芯对绞线和十字架(9)，四组绝缘线芯对绞线置于十字架(9)的四个空隙内构成圆形缆芯导体(2)，在缆芯上挤包一层透明聚氯乙烯塑料膜(4)，在塑料膜上依次绕包铝塑屏蔽带(5)、挤包聚乙烯隔离层(6)和包裹非磁性不锈钢带铠装层(7)，在铠装层上挤包防水聚稀烃外护套(8)。
2.根据权利要求1所述的对绞外覆屏蔽铠装防水线缆，其特征是所述的绝缘线芯由无氧铜丝外挤包高密度聚乙烯绝缘层(1)构成。
3.根据权利要求1所述的对绞外覆屏蔽铠装防水线缆，其特征是所述的绝缘线芯对绞线中设有阻水纱(3)。
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111564239A (zh) * | 2020-06-01 | 2020-08-21 | 上海永进电缆集团长兴有限公司 | 一种复合线缆及其生产工艺 |
| CN111785438A (zh) * | 2020-08-10 | 2020-10-16 | 安徽天星电缆科技有限公司 | 智能家居用数据电缆 |
| CN114242344A (zh) * | 2021-12-21 | 2022-03-25 | 广东金源宇电线电缆有限公司 | 一种新型电缆结构及其加工工艺 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111564239A (zh) * | 2020-06-01 | 2020-08-21 | 上海永进电缆集团长兴有限公司 | 一种复合线缆及其生产工艺 |
| CN111564239B (zh) * | 2020-06-01 | 2021-09-21 | 上海永进电缆(集团)有限公司 | 一种复合线缆及其生产工艺 |
| CN111785438A (zh) * | 2020-08-10 | 2020-10-16 | 安徽天星电缆科技有限公司 | 智能家居用数据电缆 |
| CN114242344A (zh) * | 2021-12-21 | 2022-03-25 | 广东金源宇电线电缆有限公司 | 一种新型电缆结构及其加工工艺 |
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