CN106782799A - 皱纹铜套皱纹钢套钢丝铠装海底电缆 - Google Patents
皱纹铜套皱纹钢套钢丝铠装海底电缆 Download PDFInfo
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Abstract
本发明提供一种皱纹铜套皱纹钢套钢丝铠装海底电缆，包括从内至外依次设置的缆芯、填充层、半导电阻水带、高阻燃包带、铠装层和防水层，采用皱纹铜套代替传统的铅套，采用皱纹钢套加钢丝铠装结构代替传统的双层钢丝铠装结构，在不影响阻水性能和机械性能的同时，还进一步提高了抗压性能和弯曲性能，降低了重量之后还利于安装敷设，提高传输效率，且对环境无任何污染，还提高了承载短路电流的能力和提高了屏蔽层的性能，电缆弯曲性能好更易于实现电缆的一次接口和二次接口。
Description
技术领域
本发明涉及一种海底电缆，特别涉及一种皱纹铜套皱纹钢套钢丝铠装海底电缆。
背景技术
海底电缆是用绝缘材料包裹的电缆，铺设在海底，用于电信传输。目前，世界各国都不断加强对海洋资源的开发和利用，电缆也广泛应用于海底当中。例如ZL201010257851.6，目前的海底电缆缆心金属层普遍使用铅套，但是铅套存在的比较多的问题。机械性能差，无法在海底复杂的运行环境中很好的保护内部绝缘线芯；铅密大，不利于电缆的安装敷设；为重金属，游离态的铅会进入自然界污染环境；电阻率大，承载短路电流能力差。保护层采用双层钢丝铠装，虽然具备了一定的抗拉性能和弯曲性能，但抗压性能较差，并且不具有阻水性能，在环境恶劣的海底不能给电缆提供最好的保护。由于使用环境的特殊性，海缆的维护十分困难，海缆故障造成直接、间接损失十分巨大，海缆故障的抢修成本十分高昂。
发明内容
为了解决上述问题，本发明提供一种皱纹铜套皱纹钢套钢丝铠装海底电缆。
本发明所采用的技术方案是：皱纹铜套皱纹钢套钢丝铠装海底电缆，包括从内至外依次设置的缆芯、填充层和保护层；缆芯包括从内至外依次设置的阻水铜导体、导体屏蔽层、XLPE绝缘层、绝缘屏蔽层、第一半导电阻水带和半导电PE护套；保护层包括从内至外依次设置的第二半导体阻水带、第一HDPE护套、钢丝铠装、包带和第二HDPE护套；其特征在于：缆芯中第一半导电阻水带与半导电PE护套之间增加了皱纹铜套，提高缆芯的机械性能，增加承载短路电流的能力；保护层中第二半导体阻水带与第一HDPE护套之间增加高阻燃包带和皱纹钢套，其中皱纹钢套提高电缆的径向阻水性能，以及避免涡流损耗，提高电缆传输效率，并且配合高阻燃包带实现阻燃耐火。
优选的，皱纹铜套厚度为0.3-1.0mm，皱纹节距为2-15mm，皱纹深度为0.5-3.5mm，使得皱纹铜套在强度有所保证的情况下，有良好的弯曲性能，电缆弯曲性能好更易于实现电缆的一次接口和二次接口。
优选的，皱纹钢套材质为不锈钢，增加电缆的耐腐蚀性能，避免金属套在交变电流下产生的涡流损耗，并且配合高阻燃绕包带实现电缆的阻燃性能。
优选的，皱纹钢套厚度为0.2-0.6mm，皱纹节距为4-40mm，皱纹深度为0.5-5.0mm，使得皱纹钢套在强度有所保证的情况下，有良好的弯曲性能，电缆弯曲性能好更易于实现电缆的一次接口和二次接口。
优选的，填充层内设置有光纤，光纤数量依照实际情况设置数量。
优选的，缆芯根据不同需求设置为一股或三股。
本发明的有益效果为：皱纹铜套阻水性能和机械性能比铅套作为阻水屏蔽层时更加优秀，皱纹结构进一步提高机械抗压性能和弯曲性能；铜的密度与铅相比也更小，可以有效减小电缆的重量，利于安装敷设；铜对环境无污染；铜电阻率小，有较好的承载短路电流的能力；皱纹钢套具备极佳的抗拉和抗压性能，钢丝铠装进一步提高电缆抗拉性能，皱纹钢套加钢丝铠装的组合结构可以应对海底水压较大、生物破坏和自然条件恶劣等复杂环境，降低电缆故障率，提高电缆可靠性，保证电缆的正常运行；皱纹钢套为密封结构，径向阻水效果极佳，是阻止海水侵入电缆内部的有效措施。
附图说明
图1为本发明的结构示意图。
1-阻水铜导体、2-导体屏蔽层、3-XLPE绝缘层、4-绝缘屏蔽层、5-第一半导电阻水带、6-皱纹铜套、7-半导电PE护套、8-填充层、9-第二半导电阻水带、10-高阻燃包带、11-皱纹钢套、12-第一HDPE护套、13-钢丝铠装、14-包带、15-第二HDPE护套、16-光纤。
具体实施方式
现在结合附图对本发明作进一步详细的说明。附图为简化的示意图，仅以示意方式说明本发明的基本结构，因此其仅显示与本发明有关的构成。
如图1所示，皱纹铜套皱纹钢套钢丝铠装海底电缆，包括从内至外依次设置的缆芯、填充层和保护层。缆芯包括从内至外依次设置的阻水铜导体、导体屏蔽层、XLPE绝缘层、绝缘屏蔽层、第一半导电阻水带和半导电PE护套；保护层包括从内至外依次设置的第二半导电阻水带、第一HDPE护套、钢丝铠装、包带和第二HDPE护套。缆芯中第一半导电阻水带与半导电PE护套之间增加了皱纹铜套，提高缆芯的机械性能，增加承载短路电流的能力；保护层中第二半导电阻水带与第一HDPE护套之间增加高阻燃包带和皱纹钢套，其中皱纹钢套提高电缆的径向阻水性能，以及避免涡流损耗，提高电缆传输效率，并且配合高阻燃包带实现阻燃耐火。
填充层内设置有光纤，光纤数量依照实际情况设置数量。缆芯根据不同需求设置为一股或三股。
皱纹铜套厚度为0.3‐1.0mm，皱纹节距为2‐15mm，皱纹深度为0.5‐3.5mm，使得皱纹铜套在强度有所保证的情况下，有良好的弯曲性能。皱纹钢套厚度为0.2‐0.6mm，皱纹节距为4‐40mm，皱纹深度为0.5‐5.0mm，使得皱纹钢套在强度有所保证的情况下，有良好的弯曲性能。皱纹钢套材质为不锈钢，增加电缆的耐腐蚀性能，避免金属套在交变电流下产生的涡流损耗，并且配合高阻燃绕包带实现电缆的阻燃性能。
以上述依据本发明的理想实施例为启示，通过上述的说明内容，相关工作人员完全可以在不偏离本项发明技术思想的范围内，进行多样的变更以及修改。本项发明的技术性范围并不局限于说明书上的内容，必须要根据权利要求范围来确定其技术性范围。
Claims (6)
1.皱纹铜套皱纹钢套钢丝铠装海底电缆，包括从内至外依次设置的缆芯、填充层和保护层；缆芯包括从内至外依次设置的阻水铜导体、导体屏蔽层、XLPE绝缘层、绝缘屏蔽层、第一半导电阻水带和半导电PE护套；保护层包括从内至外依次设置的第二半导电阻水带、第一HDPE护套、钢丝铠装、包带和第二HDPE护套；其特征在于：缆芯中第一半导体阻水带与半导体PE护套之间增加了皱纹铜套，提高缆芯的机械性能，增加承载短路电流的能力；保护层中第二半导体阻水带与第一HDPE护套之间增加高阻燃包带和皱纹钢套，其中皱纹钢套提高电缆的径向阻水性能，以及避免涡流损耗，提高电缆传输效率，并且配合高阻燃包带实现阻燃耐火。
2.根据权利要求1所述的皱纹铜套皱纹钢套钢丝铠装海底电缆，其特征在于：所述皱纹铜套厚度为0.3-1.0mm，皱纹节距为2-15mm，皱纹深度为0.5-3.5mm。
3.根据权利要求2所述的皱纹铜套皱纹钢套钢丝铠装海底电缆，其特征在于：所述皱纹钢套材质为不锈钢。
4.根据权利要求3所述的皱纹铜套皱纹钢套钢丝铠装海底电缆，其特征在于：所述皱纹钢套厚度为0.2-0.6mm，皱纹节距为4-40mm，皱纹深度为0.5-5.0mm。
5.根据权利要求1所述的皱纹铜套皱纹钢套钢丝铠装海底电缆，其特征在于：所述填充层内设置有光纤。
6.根据权利要求1-5任意一种所述的皱纹铜套皱纹钢套钢丝铠装海底电缆，其特征在于：所述缆芯设置一股或三股。
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| WO2022027849A1 (zh) * | 2020-08-04 | 2022-02-10 | 中天科技海缆股份有限公司 | 一种高压动态海缆 |
| EP4163931A4 (en) * | 2020-08-04 | 2024-06-05 | Zhongtian Technology Submarine Cable Co., Ltd. | DYNAMIC HIGH VOLTAGE SUBMERSIBLE CABLE |
| CN114005583A (zh) * | 2021-11-01 | 2022-02-01 | 中天科技海缆股份有限公司 | 一种海缆 |
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