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CN107274985B - 一种z型铜丝铠装光电复合海底电缆 - Google Patents

一种z型铜丝铠装光电复合海底电缆 Download PDF

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CN107274985B
CN107274985B CN201710561267.1A CN201710561267A CN107274985B CN 107274985 B CN107274985 B CN 107274985B CN 201710561267 A CN201710561267 A CN 201710561267A CN 107274985 B CN107274985 B CN 107274985B
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CN107274985A (zh
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陈然
梅文杰
李春梅
陈涛
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Hengtong Submarine Power Cable Co Ltd
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    • HELECTRICITY
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    • H01B7/17Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/18Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
    • H01B7/22Metal wires or tapes, e.g. made of steel
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    • HELECTRICITY
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    • H01B7/18Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
    • H01B7/26Reduction of losses in sheaths or armouring
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
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    • H01B7/17Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/28Protection against damage caused by moisture, corrosion, chemical attack or weather
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    • H01B7/2825Preventing penetration of fluid, e.g. water or humidity, into conductor or cable using a water impermeable sheath
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    • H01B7/282Preventing penetration of fluid, e.g. water or humidity, into conductor or cable
    • H01B7/285Preventing penetration of fluid, e.g. water or humidity, into conductor or cable by completely or partially filling interstices in the cable
    • HELECTRICITY
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    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
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    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
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    • HELECTRICITY
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    • H01B9/027Power cables with screens or conductive layers, e.g. for avoiding large potential gradients composed of semi-conducting layers
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
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    • H01B9/02Power cables with screens or conductive layers, e.g. for avoiding large potential gradients
    • H01B9/028Power cables with screens or conductive layers, e.g. for avoiding large potential gradients with screen grounding means, e.g. drain wires
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
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Abstract

本发明公开了一种Z型铜丝铠装光电复合海底电缆,包括:导体、半导电带、交联型导体屏蔽层、绝缘层、交联型绝缘屏蔽层、半导电阻水带、铅护套、半导电PE护套、包带、填充条、内衬层、铜丝铠装和外被层。通过上述方式,本发明一种Z型铜丝铠装光电复合海底电缆,该电缆采用铜丝铠装,损耗低,可以增大电缆载流量,具有很好的机械性能,解决了圆形铜丝铠装不能承受巨大拉力的弱点,还可以防止间隙的产生,全方位无死角的保护电缆线芯不受径向作用力的破坏,铠装铜丝之间加入阻水粉,可以作为海缆阻水的第一道防线。

Description

一种Z型铜丝铠装光电复合海底电缆
技术领域
本发明属于电缆领域,具体涉及一种Z型铜丝铠装光电复合海底电缆。
背景技术
海底电缆主要被用于长距离电力通讯网,包括远距离岛屿与岛屿之间、大陆与岛屿之间、跨海军事设施等重要领域,当前国内、国际海底电缆存在广阔的市场及应用前景,主要体现在沿海城市及岛屿市场、海上石油平台用海底电缆市场、河流湖泊等水下电缆市场和海上风力发电及输电用海底电缆,随着世界基础设施的完善和电力工业的发展,超高压光电复合缆在电力系统领域的应用越来越广泛,电缆铠装层的设计、制造正处于发展阶段,目前通常采用的是镀锌钢丝铠装,但单芯海缆采用镀锌钢丝不可避免会产生很大损耗,如果采用圆铜丝铠装又达不到敷设受力要求,因此还有很多需要改进的地方。
发明内容
本发明主要解决的技术问题是提供一种一种Z型铜丝铠装光电复合海底电缆,能够有效解决单芯光电复合海缆采用镀锌钢丝铠装损耗大、圆形铜丝铠装机械性能差的问题,并能够有效起到初步阻水作用。
为解决上述技术问题,本发明采用的一个技术方案是:一种Z型铜丝铠装光电复合海底电缆,包括:导体、半导电带、交联型导体屏蔽层、绝缘层、交联型绝缘屏蔽层、半导电阻水带、铅护套、半导电PE护套、包带、填充条、内衬层、铜丝铠装和外被层;
所述导体的外部与所述交联型导体屏蔽层相连接,所述半导电带位于所述导体与所述交联型导体屏蔽层之间,所述交联型导体屏蔽层外部与所述绝缘层相连接,所述绝缘层外部与所述交联型绝缘屏蔽层相连接,所述交联型绝缘屏蔽层外部与所述半导电阻水带相连接,所述半导电阻水带外部与所述铅护套相连接,所述铅护套外部与所述半导电PE护套相连接,所述半导电PE护套外部与所述包带相连接,所述包带外部依次连接有所述内衬层和所述外被层,所述铜丝铠装安装在所述内衬层和所述外被层之间,所述填充条安装在所述包带与所述内衬层之间;
所述填充条中安装有光单元。
在本发明一个较佳实施例中,所述绝缘层为抗水树交联聚乙烯绝缘层。
在本发明一个较佳实施例中,所述铜丝铠装采用防腐Z型铜丝铠装。
在本发明一个较佳实施例中,所述铜丝铠装中铜丝之间加入阻水粉。
在本发明一个较佳实施例中,所述内衬层和所述外被层分别采用一层PP绳和两层PP绳。
本发明的有益效果是:本发明一种Z型铜丝铠装光电复合海底电缆,该电缆采用铜丝铠装,损耗低,可以增大电缆载流量,具有很好的机械性能,解决了圆形铜丝铠装不能承受巨大拉力的弱点,还可以防止间隙的产生,全方位无死角的保护电缆线芯不受径向作用力的破坏,铠装铜丝之间加入阻水粉,可以作为海缆阻水的第一道防线。
附图说明
图1为一种Z型铜丝铠装光电复合海底电缆的结构示意图。
附图中各部件的标记如下:1、导体;2、半导电带;3、交联型导体屏蔽层;4、绝缘层;5、交联型绝缘屏蔽层;6、半导电阻水带;7、铅护套;8、半导电PE护套;9、包带;10、填充条;11、内衬层;12、铜丝铠装;13、外被层;14、光单元。
具体实施方式
下面结合附图对本发明的较佳实施例进行详细阐述,以使本发明的优点和特征能更易于被本领域技术人员理解,从而对本发明的保护范围做出更为清楚明确的界定。
请参阅图1,本发明实施例包括:一种Z型铜丝铠装光电复合海底电缆,包括:导体1、半导电带2、交联型导体屏蔽层3、绝缘层4、交联型绝缘屏蔽层5、半导电阻水带6、铅护套7、半导电PE护套8、包带9、填充条10、内衬层11、铜丝铠装12和外被层13,所述导体1采用电解铜,纯度不小于99.95%,由退火的无氧铜单线绞制而成,表面光洁、无油污、无损伤屏蔽及绝缘的毛刺、锐边,无凸起或断裂的单线,使用阻水密封结构,采用合适的阻水带材绞合于导体每一层之间,以防止电缆损坏后海水进入所述导体。
所述导体1的外部与所述交联型导体屏蔽层3相连接,所述半导电带2位于所述导体1与所述交联型导体屏蔽层3之间,所述交联型导体屏蔽层3外部与所述绝缘层4相连接,所述绝缘层4为抗水树交联聚乙烯绝缘层,提高了电缆的使用寿命。
所述绝缘层4外部与所述交联型绝缘屏蔽层5相连接,所述交联型导体屏蔽层3、所述绝缘层4和所述交联型绝缘屏蔽层5采用德国TROESTER进口全干式三层共挤交联生产线生产,配有先进的硫化计算系统、德国SIKORA在线测偏仪、导体预热装置、原材料千级净化室、线芯去气室,生产出的绝缘线芯均匀、圆整、无内应力,有效地保证了电缆的电气绝缘性能和偏心率。
所述交联型绝缘屏蔽层5外部与所述半导电阻水带6相连接,所述半导电阻水带6外部与所述铅护套7相连接,所述铅护套7采用无缝合金铅套,紧敷于纵向防渗水层上,具有良好的密封性和耐腐蚀性。
所述铅护套7外部与所述半导电PE护套8相连接,所述半导电PE护套8可以很好的保护缆芯,具有较好的径向阻水效果。
所述半导电PE护套8外部与所述包带9相连接,所述包带9外部依次连接有所述内衬层11和所述外被层13,所述铜丝铠装12安装在所述内衬层11和所述外被层13之间,
所述铜丝铠装12比一般通常采用的镀锌钢丝损耗低很多,可以增大电缆载流量,所述铜丝铠装12具有良好的导电性,可以和金属护套同时起到短路泄流的作用,而且和金属护套短接后可作为接地线。
所述铜丝铠装12采用防腐Z型铜丝铠装,Z型铜丝铠装既具有良好的机械性能,充分保护电缆不受外界作用力破坏,也可以作为海缆阻水的第一道防线,而且具有很好的导电性能。
Z型铜丝比圆形铜丝的机械性能更好,避免了圆形铜丝铠装满足不了海缆敷设时承受巨大拉力的弱点。
采用圆形单丝铠装时,单丝与单丝之间避免不了会存在空隙,这些间隙可能会成为海缆在承受径向作用力时的致命弱点,然而采用Z型铜丝铠装可以防止间隙的产生,全方位无死角的保护电缆线芯不受径向作用力的破坏。
所述铜丝铠装12中铜丝之间加入阻水粉,可以作为海缆阻水的第一道防线。
所述填充条10安装在所述包带9与所述内衬层11之间,所述内衬层11和所述外被层13分别采用一层PP绳和两层PP绳,可以充分保护缆芯不受所述铜丝铠装12的损害,并保证电缆不受外界破坏。
所述填充条10中安装有光单元14,所述填充条10对所述光单元14能够起到很好的保护作用。
与现有技术相比,本发明一种Z型铜丝铠装光电复合海底电缆,该电缆采用铜丝铠装,损耗低,可以增大电缆载流量,具有很好的机械性能,解决了圆形铜丝铠装不能承受巨大拉力的弱点,还可以防止间隙的产生,全方位无死角的保护电缆线芯不受径向作用力的破坏,铠装铜丝之间加入阻水粉,可以作为海缆阻水的第一道防线。
以上所述仅为本发明的实施例,并非因此限制本发明的专利范围,凡是利用本发明说明书及附图内容所作的等效结构或等效流程变换,或直接或间接运用在其他相关的技术领域,均同理包括在本发明的专利保护范围内。

Claims (3)

1.一种Z型铜丝铠装光电复合海底电缆,其特征在于,包括:导体、半导电带、交联型导体屏蔽层、绝缘层、交联型绝缘屏蔽层、半导电阻水带、铅护套、半导电PE护套、包带、填充条、内衬层、铜丝铠装和外被层;
所述导体的外部与所述交联型导体屏蔽层相连接,所述半导电带位于所述导体与所述交联型导体屏蔽层之间,所述交联型导体屏蔽层外部与所述绝缘层相连接,所述绝缘层外部与所述交联型绝缘屏蔽层相连接,所述交联型绝缘屏蔽层外部与所述半导电阻水带相连接,所述半导电阻水带外部与所述铅护套相连接,所述铅护套外部与所述半导电PE护套相连接,所述半导电PE护套外部与所述包带相连接,所述包带外部依次连接有所述内衬层和所述外被层,所述铜丝铠装安装在所述内衬层和所述外被层之间,所述填充条安装在所述包带与所述内衬层之间;
所述填充条中安装有光单元;
所述铜丝铠装采用防腐Z型铜丝铠装;
所述铜丝铠装中铜丝之间加入阻水粉。
2.根据权利要求1所述的一种Z型铜丝铠装光电复合海底电缆,其特征在于:所述绝缘层为抗水树交联聚乙烯绝缘层。
3.根据权利要求1所述的一种Z型铜丝铠装光电复合海底电缆,其特征在于:所述内衬层和所述外被层分别采用一层PP绳和两层PP绳。
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