CN104183314B - 具有发光外护套的海底电缆及其制造方法 - Google Patents

具有发光外护套的海底电缆及其制造方法 Download PDF

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CN104183314B
CN104183314B CN201410467652.6A CN201410467652A CN104183314B CN 104183314 B CN104183314 B CN 104183314B CN 201410467652 A CN201410467652 A CN 201410467652A CN 104183314 B CN104183314 B CN 104183314B
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outside
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oxide
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杨国林
陈鹏
齐好奎
姜言刚
王晓龙
耿海强
赵连平
张阳
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State Grid Corp of China SGCC
Weifang Power Supply Co of State Grid Shandong Electric Power Co Ltd
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Abstract

本发明属线缆技术领域,尤涉及具有发光外护套的海底电缆,它是电力传输单元、金属屏蔽层、阻水层、铝带层、内护套、铠装层、外护套构成,外护套上嵌有发光条;发光条凸出于外护套或者表面与外护套的表面在同一圆柱面上;电力传输单元是由导体、绝缘层、绝缘屏蔽层、导体护层构成的,在任一横截面上,导体的圆心与绝缘层的圆心相重合,且绝缘层的直径是导体直径的0.8~3倍;钢丝都是紧贴内护套的;所述绝缘层的材料为硅烷交联聚乙烯或特殊材料;发光条是具有反光膜的反光带条或特殊材料。本发明还揭示了制造方法。本发明具有以下主要有益效果:绝缘性能好、能传输高电压、易制造、成品合格率高、可主动或被动发光及反光,便于维护和维修。

Description

具有发光外护套的海底电缆及其制造方法
技术领域
本发明属于海底线缆技术领域,尤其是涉及具有发光外护套的海底电缆及其制造方法。
背景技术
地球表面被各大陆地分隔为彼此相通的广大水域称为海洋,地球其总面积约为3.6亿平方公里,约占地球表面积的71%,大约等于陆地面积的2.5倍,世界海洋是一个巨大的宝库。它拥有人类所必须的大量事物和丰富的工业资源。地球五个主要的大洋为太平洋、大西洋和印度洋、北冰洋、南冰洋,大部分以陆地和海底地形线为界。
随着工业的飞速发展,人们对于海洋的探索规模日益增大,海洋的利用价值也被人们更加重视,为此,需要敷设各种各样的海底电缆来作为基础设施,海底电缆中最常用的是海底电缆、海底光缆、海底光电复合缆。
海底电缆不象陆上电缆那样,进行管道、架空、直埋敷设;海底电缆是通过丢放的方式散放在海底的,仅间隔一段距离进行简单固定,然而,海底电缆敷设在海底后,当需要维护与维修时,通常由潜水人员潜入海底进行,由于海底深处非常黑暗,潜水人员要通过仪器仪表才能准确地找到电缆,当电缆彻底断裂时极难寻找;因此,给维修及维护带来了极大的不便。
发明内容
为了解决上述问题,本发明的目的是揭示具有发光外护套的海底电缆及其制造方法,它们是采用以下技术方案来实现的。
具有发光外护套的海底电缆,其特征在于它是由三个两两相互外切设置的电力传输单元1、将三个电力传输单元包覆住的金属屏蔽层2、位于金属屏蔽层外的阻水层3、挤塑包覆在阻水层外的铝带层4、位于铝带层4之外的内护套5、位于内护套外部且由多根钢丝绞合而成的铠装层6、挤塑包覆在铠装层之外的外护套7构成,外护套上螺旋地或平行地镶嵌有发光条8;发光条是凸出于外护套的或者发光条的表面与外护套的表面在同一圆柱面上;所述电力传输单元1是由导体11、挤塑包覆在导体外的绝缘层12、位于绝缘层之外的绝缘屏蔽层13、挤塑包覆在绝缘屏蔽层之外的导体护层14构成的,在任一横截面上,导体的圆心与绝缘层的圆心相重合,且绝缘层的直径是导体直径的0.8~3倍且绝缘层厚度最小值为1.5mm;钢丝都是紧贴内护套的;所述绝缘层的材料为硅烷交联聚乙烯或者是按重量份计,由以下原材料构成的:高密度聚乙烯:65~75份、乙烯-醋酸乙烯酯共聚物:12~18份、乙烯-四氟乙烯共聚物:10~14份、氢氧化镁:12~14份、抗氧剂1010:2~4份、钛酸锶:1~3份、钛酸钙:1~3份、钛酸铋:1~3份、钛酸镁:1~3份、二氧化硅:2~4份、二氧化锆:2~4份;所述外护套的材料是高密度聚乙烯或中密度聚乙烯或低密度聚乙烯;发光条是具有反光膜的反光带条或者按重量份计,所述发光条包含以下原材料:与外护套相同的材料:300份、氧化铜或氧化铁:30~40份、氧化铝:10~20份、氧化铵:2~5份、氧化钕:1~2份、氧化锰:1~2份、氧化锂:1~2份、氧化锌:1~2份、氧化铕:2~4份、碳酸钡:2~3份、碳酸锶:1~2份、高硼酸:1~3份、氧化镁:1~2份、氯化钠:5~10份、氧化硅:40~60份、市售稀土铝酸盐单峰蓝粉:5~10份。
上述所述的具有发光外护套的海底电缆,其特征在于所述金属屏蔽层的材料是钢带或铝带或铜带,是以纵向包覆的方式或螺旋绕包的方式包覆在三个导电单元整体的外部;纵向包覆时,具有重叠搭接,搭接宽度为2~5mm,搭接处用热熔胶粘结,搭接处钢带间或铝带间或铜带间的剥离强度最小值为1.5N/mm;螺旋绕包时,前后螺旋间具有重叠搭接,搭接宽度为1~3mm。
上述所述的具有发光外护套的海底电缆,其特征在于所述阻水层为阻水带或无纺布或聚酯包带。
上述所述的具有发光外护套的海底电缆,其特征在于所述绝缘屏蔽层为导电塑料。
上述所述的具有发光外护套的海底电缆,其特征在于所述导体保护层的材料是高密度聚乙烯或中密度聚乙烯或聚氯乙烯或低密度聚乙烯。
上述所述的具有发光外护套的海底电缆,其特征在于所述内护套的主体材料为聚乙烯或聚氯乙烯。
上述所述的具有发光外护套的海底电缆,其特征在于它是通过以下方法步骤制造而成的:
第一步:制造电力传输单元的步骤:先取多根铜丝或铝丝或多根铜丝与多根铝丝进行绞合,形成所需截面积的导体;再取硅烷交联聚乙烯或者是按重量份计,由以下原材料构成的:高密度聚乙烯:65~75份、乙烯-醋酸乙烯酯共聚物:12~18份、乙烯-四氟乙烯共聚物:10~14份、氢氧化镁:12~14份、抗氧剂1010:2~4份、钛酸锶:1~3份、钛酸钙:1~3份、钛酸铋:1~3份、钛酸镁:1~3份、二氧化硅:2~4份、二氧化锆:2~4份;放入绝缘层挤塑机中,在导体外挤塑绝缘层,使导体的圆心与绝缘层的圆心相重合,且绝缘层的直径是导体直径的1.5~5倍且绝缘层厚度最小值为1.5mm;然后将导电塑料挤塑包覆在绝缘层之外形成绝缘屏蔽层;接着将高密度聚乙烯或中密度聚乙烯或聚氯乙烯或低密度聚乙烯挤塑包覆在绝缘屏蔽层之外形成导体护层;反复上述步骤,直至形成三根电力传输单元;
第二步:制造金属屏蔽层的步骤:取第一步中制造好的三根电力传输单元两两相外切地绞合或平行放置形成电力传输单元绞合体;再取钢带或铝带或铜带以纵向包覆的方式或螺旋绕包的方式紧贴包覆在第一步中形成的导电单元绞合体外部;纵向包覆时,具有重叠搭接,搭接宽度为2~5mm,搭接处用热熔胶粘结,搭接处钢带间或铝带间或铜带间的剥离强度最小值为1.6N/mm;螺旋绕包时,前后螺旋间具有重叠搭接,搭接宽度为1~3mm;
第三步:形成阻水层的步骤:取阻水层为阻水带或无纺布或聚酯包带纵向包覆在第二步中制造好的金属屏蔽层外部,形成阻水层;
第四步:制造阻水层的步骤:取铝塑复合带纵向包覆在第三步形成的阻水层外步形成铝带层;
第五步:制造内护套的步骤:取聚乙烯或聚氯乙烯挤塑包覆在第四步中制造好的铝带层外部形成内护套;
第六步:制造铠装层的步骤:取多根钢丝螺旋包覆在第五步中制造好的内护套外部形成铠装层;所述加强件的直径是相等的;
第七步:制造外护套与发光条的步骤:通过外护套挤塑机将高密度聚乙烯或中密度聚乙烯或低密度聚乙烯挤塑包覆在第六步形成的铠装层外部形成外护套;同时将反光条材料通过注塑机螺旋地或平行地镶嵌在外护套上,并使发光条是凸出于外护套或者发光条的表面与外护套的表面在同一圆柱面上,形成具有发光外护套的海底电缆成品;所述发光条按重量份计包含以下原材料:与外护套相同的材料:300份、氧化铜或氧化铁:30~40份、氧化铝:10~20份、氧化铵:2~5份、氧化钕:1~2份、氧化锰:1~2份、氧化锂:1~2份、氧化锌:1~2份、氧化铕:2~4份、碳酸钡:2~3份、碳酸锶:1~2份、高硼酸:1~3份、氧化镁:1~2份、氯化钠:5~10份、氧化硅:40~60份、市售稀土铝酸盐单峰蓝粉:5~10份。
本发明中,由于外护套上具有发光条,发光条具有反光膜的反光带条或者是含有多种稀土材料的成份组合;当其为具有反光膜的反光带条时,潜水人员在潜水时,头上戴的灯具发出的光照射在海底电缆的外护套上,形成被动发光,很方便地找到海底电缆,便于维护与维修;当其为含有多种稀土材料的成份组合时,一方面由于发光条可以自身发光,因此,潜水人员可以更方便、直接地找到海底电缆,更便于维护与维修;另一方面,由于发光条材料中含有大量氧化硅,因此,潜水人员在潜水时,头上戴的灯具发出的光照射在海底电缆的外护套上,形成强烈反光,很方便地找到海底电缆,便于维护与维修。
本发明中所述的市售稀土铝酸盐单峰蓝粉,可以在淘宝网上购买到;其它成份也可按照名称在市场上购买到。
本发明在制作前,发光条的各种成份确保混合均匀,并且粒度小于100目;本发明易于制作、需要的设备要求低,可采用常规设备制造;成品合格率高。
因此,本发明具有以下主要有益效果:绝缘性能好、能传输高电压、易制造、成品合格率高、可主动或被动发光及反光,便于维护和维修。
附图说明
图1为本发明实施实例1的一段开剥后的立体结构示意图。
图2为图1放大后的主视图。
图3为本发明实施实例2的一段开剥后的立体结构示意图。
图4为图3放大后的主视图。
图5为本发明实施实例3的一段开剥后的立体结构示意图。
具体实施方式
实施实例1
请见图1和图2,具有发光外护套的海底电缆,其特征在于它是由三个两两相互外切设置的电力传输单元1、将三个电力传输单元包覆住的金属屏蔽层2、位于金属屏蔽层外的阻水层3、挤塑包覆在阻水层外的铝带层4、位于铝带层4之外的内护套5、位于内护套外部且由多根钢丝绞合而成的铠装层6、挤塑包覆在铠装层之外的外护套7构成,外护套上螺旋地镶嵌有发光条8;发光条是凸出于外护套的;所述电力传输单元1是由导体11、挤塑包覆在导体外的绝缘层12、位于绝缘层之外的绝缘屏蔽层13、挤塑包覆在绝缘屏蔽层之外的导体护层14构成的,在任一横截面上,导体的圆心与绝缘层的圆心相重合,且绝缘层的直径是导体直径的0.8~3倍且绝缘层厚度最小值为1.5mm;钢丝都是紧贴内护套的;所述绝缘层的材料为硅烷交联聚乙烯或者是按重量份计,由以下原材料构成的:高密度聚乙烯:65~75份、乙烯-醋酸乙烯酯共聚物:12~18份、乙烯-四氟乙烯共聚物:10~14份、氢氧化镁:12~14份、抗氧剂1010:2~4份、钛酸锶:1~3份、钛酸钙:1~3份、钛酸铋:1~3份、钛酸镁:1~3份、二氧化硅:2~4份、二氧化锆:2~4份;所述外护套的材料是高密度聚乙烯或中密度聚乙烯或低密度聚乙烯;发光条是具有反光膜的反光带条或者按重量份计,所述发光条包含以下原材料:与外护套相同的材料:300份、氧化铜或氧化铁:30~40份、氧化铝:10~20份、氧化铵:2~5份、氧化钕:1~2份、氧化锰:1~2份、氧化锂:1~2份、氧化锌:1~2份、氧化铕:2~4份、碳酸钡:2~3份、碳酸锶:1~2份、高硼酸:1~3份、氧化镁:1~2份、氯化钠:5~10份、氧化硅:40~60份、市售稀土铝酸盐单峰蓝粉:5~10份。
实施实例2
请见图3和图4,具有发光外护套的海底电缆,其特征在于它是由三个两两相互外切设置的电力传输单元1、将三个电力传输单元包覆住的金属屏蔽层2、位于金属屏蔽层外的阻水层3、挤塑包覆在阻水层外的铝带层4、位于铝带层4之外的内护套5、位于内护套外部且由多根钢丝绞合而成的铠装层6、挤塑包覆在铠装层之外的外护套7,外护套上螺旋地镶嵌有发光条8;发光条的表面与外护套的表面在同一圆柱面上;所述电力传输单元1是由导体11、挤塑包覆在导体外的绝缘层12、位于绝缘层之外的绝缘屏蔽层13、挤塑包覆在绝缘屏蔽层之外的导体护层14构成的,在任一横截面上,导体的圆心与绝缘层的圆心相重合,且绝缘层的直径是导体直径的0.8~3倍且绝缘层厚度最小值为1.5mm;钢丝都是紧贴内护套的;所述绝缘层的材料为硅烷交联聚乙烯或者是按重量份计,由以下原材料构成的:高密度聚乙烯:65~75份、乙烯-醋酸乙烯酯共聚物:12~18份、乙烯-四氟乙烯共聚物:10~14份、氢氧化镁:12~14份、抗氧剂1010:2~4份、钛酸锶:1~3份、钛酸钙:1~3份、钛酸铋:1~3份、钛酸镁:1~3份、二氧化硅:2~4份、二氧化锆:2~4份;所述外护套的材料是高密度聚乙烯或中密度聚乙烯或低密度聚乙烯;发光条是具有反光膜的反光带条或者按重量份计,所述发光条包含以下原材料:与外护套相同的材料:300份、氧化铜或氧化铁:30~40份、氧化铝:10~20份、氧化铵:2~5份、氧化钕:1~2份、氧化锰:1~2份、氧化锂:1~2份、氧化锌:1~2份、氧化铕:2~4份、碳酸钡:2~3份、碳酸锶:1~2份、高硼酸:1~3份、氧化镁:1~2份、氯化钠:5~10份、氧化硅:40~60份、市售稀土铝酸盐单峰蓝粉:5~10份。
实施实例3
请见图5,具有发光外护套的海底电缆,其特征在于它是由三个两两相互外切设置的电力传输单元1、将三个电力传输单元包覆住的金属屏蔽层2、位于金属屏蔽层外的阻水层3、挤塑包覆在阻水层外的铝带层4、位于铝带层4之外的内护套5、位于内护套外部且由多根钢丝绞合而成的铠装层6、挤塑包覆在铠装层之外的外护套7,外护套上平行地镶嵌有多根发光条8;发光条的表面与外护套的表面在同一圆柱面上;所述电力传输单元1是由导体11、挤塑包覆在导体外的绝缘层12、位于绝缘层之外的绝缘屏蔽层13、挤塑包覆在绝缘屏蔽层之外的导体护层14构成的,在任一横截面上,导体的圆心与绝缘层的圆心相重合,且绝缘层的直径是导体直径的0.8~3倍且绝缘层厚度最小值为1.5mm;钢丝都是紧贴内护套的;所述绝缘层的材料为硅烷交联聚乙烯或者是按重量份计,由以下原材料构成的:高密度聚乙烯:65~75份、乙烯-醋酸乙烯酯共聚物:12~18份、乙烯-四氟乙烯共聚物:10~14份、氢氧化镁:12~14份、抗氧剂1010:2~4份、钛酸锶:1~3份、钛酸钙:1~3份、钛酸铋:1~3份、钛酸镁:1~3份、二氧化硅:2~4份、二氧化锆:2~4份;所述外护套的材料是高密度聚乙烯或中密度聚乙烯或低密度聚乙烯;发光条是具有反光膜的反光带条或者按重量份计,所述发光条包含以下原材料:与外护套相同的材料:300份、氧化铜或氧化铁:30~40份、氧化铝:10~20份、氧化铵:2~5份、氧化钕:1~2份、氧化锰:1~2份、氧化锂:1~2份、氧化锌:1~2份、氧化铕:2~4份、碳酸钡:2~3份、碳酸锶:1~2份、高硼酸:1~3份、氧化镁:1~2份、氯化钠:5~10份、氧化硅:40~60份、市售稀土铝酸盐单峰蓝粉:5~10份。
当然,实施实例3所述的具有发光外护套的海底电缆,其特征在于发光条还可以是是凸出于外护套的。
上述任一实施实例所述的具有发光外护套的海底电缆,其特征在于所述金属屏蔽层的材料是钢带或铝带或铜带,是以纵向包覆的方式或螺旋绕包的方式包覆在三个导电单元整体的外部;纵向包覆时,具有重叠搭接,搭接宽度为2~5mm,搭接处用热熔胶粘结,搭接处钢带间或铝带间或铜带间的剥离强度最小值为1.5N/mm;螺旋绕包时,前后螺旋间具有重叠搭接,搭接宽度为1~3mm。
上述任一实施实例所述的具有发光外护套的海底电缆,其特征在于所述阻水层为阻水带或无纺布或聚酯包带。
上述任一实施实例所述的具有发光外护套的海底电缆,其特征在于所述绝缘屏蔽层为导电塑料。
上述任一实施实例所述的具有发光外护套的海底电缆,其特征在于所述导体保护层的材料是高密度聚乙烯或中密度聚乙烯或聚氯乙烯或低密度聚乙烯。
上述任一实施实例所述的具有发光外护套的海底电缆,其特征在于所述内护套的主体材料为聚乙烯或聚氯乙烯。
上述所述的具有发光外护套的海底电缆,其特征在于它是通过以下方法步骤制造而成的:
第一步:制造电力传输单元的步骤:先取多根铜丝或铝丝或多根铜丝与多根铝丝进行绞合,形成所需截面积的导体;再取硅烷交联聚乙烯或者是按重量份计,由以下原材料构成的:高密度聚乙烯:65~75份、乙烯-醋酸乙烯酯共聚物:12~18份、乙烯-四氟乙烯共聚物:10~14份、氢氧化镁:12~14份、抗氧剂1010:2~4份、钛酸锶:1~3份、钛酸钙:1~3份、钛酸铋:1~3份、钛酸镁:1~3份、二氧化硅:2~4份、二氧化锆:2~4份;放入绝缘层挤塑机中,在导体外挤塑绝缘层,使导体的圆心与绝缘层的圆心相重合,且绝缘层的直径是导体直径的1.5~5倍且绝缘层厚度最小值为1.5mm;然后将导电塑料挤塑包覆在绝缘层之外形成绝缘屏蔽层;接着将高密度聚乙烯或中密度聚乙烯或聚氯乙烯或低密度聚乙烯挤塑包覆在绝缘屏蔽层之外形成导体护层;反复上述步骤,直至形成三根电力传输单元;
第二步:制造金属屏蔽层的步骤:取第一步中制造好的三根电力传输单元两两相外切地绞合或平行放置形成电力传输单元绞合体;再取钢带或铝带或铜带以纵向包覆的方式或螺旋绕包的方式紧贴包覆在第一步中形成的导电单元绞合体外部;纵向包覆时,具有重叠搭接,搭接宽度为2~5mm,搭接处用热熔胶粘结,搭接处钢带间或铝带间或铜带间的剥离强度最小值为1.6N/mm;螺旋绕包时,前后螺旋间具有重叠搭接,搭接宽度为1~3mm;
第三步:形成阻水层的步骤:取阻水层为阻水带或无纺布或聚酯包带纵向包覆在第二步中制造好的金属屏蔽层外部,形成阻水层;
第四步:制造阻水层的步骤:取铝塑复合带纵向包覆在第三步形成的阻水层外步形成铝带层;
第五步:制造内护套的步骤:取聚乙烯或聚氯乙烯挤塑包覆在第四步中制造好的铝带层外部形成内护套;
第六步:制造铠装层的步骤:取多根钢丝螺旋包覆在第五步中制造好的内护套外部形成铠装层;所述加强件的直径是相等的;
第七步:制造外护套与发光条的步骤:通过外护套挤塑机将高密度聚乙烯或中密度聚乙烯或低密度聚乙烯挤塑包覆在第六步形成的铠装层外部形成外护套;同时将反光条材料通过注塑机螺旋地或平行地镶嵌在外护套上,并使发光条是凸出于外护套或者发光条的表面与外护套的表面在同一圆柱面上,形成具有发光外护套的海底电缆成品;所述发光条按重量份计包含以下原材料:与外护套相同的材料:300份、氧化铜或氧化铁:30~40份、氧化铝:10~20份、氧化铵:2~5份、氧化钕:1~2份、氧化锰:1~2份、氧化锂:1~2份、氧化锌:1~2份、氧化铕:2~4份、碳酸钡:2~3份、碳酸锶:1~2份、高硼酸:1~3份、氧化镁:1~2份、氯化钠:5~10份、氧化硅:40~60份、市售稀土铝酸盐单峰蓝粉:5~10份。
本发明中,由于外护套上具有发光条,发光条具有反光膜的反光带条或者是含有多种稀土材料的成份组合;当其为具有反光膜的反光带条时,潜水人员在潜水时,头上戴的灯具发出的光照射在海底电缆的外护套上,形成被动发光,很方便地找到海底电缆,便于维护与维修;当其为含有多种稀土材料的成份组合时,一方面由于发光条可以自身发光,因此,潜水人员可以更方便、直接地找到海底电缆,更便于维护与维修;另一方面,由于发光条材料中含有大量氧化硅,因此,潜水人员在潜水时,头上戴的灯具发出的光照射在海底电缆的外护套上,形成强烈反光,很方便地找到海底电缆,便于维护与维修。
本发明中所述的市售稀土铝酸盐单峰蓝粉,可以在淘宝网上购买到;其它成份也可按照名称在市场上购买到。
本发明在制作前,发光条的各种成份确保混合均匀,并且粒度小于100目;本发明易于制作、需要的设备要求低,可采用常规设备制造;成品合格率高。
因此,本发明具有以下主要有益效果:绝缘性能好、能传输高电压、易制造、成品合格率高、可主动或被动发光及反光,便于维护和维修。
本发明不局限于上述最佳实施方式,应当理解,本发明的构思可以按其他种种形式实施运用,它们同样落在本发明的保护范围内。

Claims (4)

1.具有发光外护套的海底电缆,其特征在于它是由三个两两相互外切设置的电力传输单元、将三个电力传输单元包覆住的金属屏蔽层、位于金属屏蔽层外的阻水层、挤塑包覆在阻水层外的铝带层、位于铝带层之外的内护套、位于内护套外部且由多根钢丝绞合而成的铠装层、挤塑包覆在铠装层之外的外护套构成,外护套上螺旋地或平行地镶嵌有发光条;发光条是凸出于外护套的或者发光条的表面与外护套的表面在同一圆柱面上;所述电力传输单元是由导体、挤塑包覆在导体外的绝缘层、位于绝缘层之外的绝缘屏蔽层、挤塑包覆在绝缘屏蔽层之外的导体护层构成的,在任一横截面上,导体的圆心与绝缘层的圆心相重合,且绝缘层的直径是导体直径的0.8~3倍且绝缘层厚度最小值为1.5mm;钢丝都是紧贴内护套的;所述绝缘层按重量份计,由以下原材料构成的:高密度聚乙烯:65~75份、乙烯-醋酸乙烯酯共聚物:12~18份、乙烯-四氟乙烯共聚物:10~14份、氢氧化镁:12~14份、抗氧剂1010:2~4份、钛酸锶:1~3份、钛酸钙:1~3份、钛酸铋:1~3份、钛酸镁:1~3份、二氧化硅:2~4份、二氧化锆:2~4份;所述外护套的材料是高密度聚乙烯或中密度聚乙烯或低密度聚乙烯;按重量份计,所述发光条包含以下原材料:与外护套相同的材料:300份、氧化铜或氧化铁:30~40份、氧化铝:10~20份、氧化铵:2~5份、氧化钕:1~2份、氧化锰:1~2份、氧化锂:1~2份、氧化锌:1~2份、氧化铕:2~4份、碳酸钡:2~3份、碳酸锶:1~2份、高硼酸:1~3份、氧化镁:1~2份、氯化钠:5~10份、氧化硅:40~60份、市售稀土铝酸盐单峰蓝粉:5~10份。
2.根据权利要求1所述的具有发光外护套的海底电缆,其特征在于所述金属屏蔽层的材料是钢带或铝带或铜带,是以纵向包覆的方式或螺旋绕包的方式包覆在三个导电单元整体的外部;纵向包覆时,具有重叠搭接,搭接宽度为2~5mm,搭接处用热熔胶粘结,搭接处钢带间或铝带间或铜带间的剥离强度最小值为1.5N/mm;螺旋绕包时,前后螺旋间具有重叠搭接,搭接宽度为1~3mm。
3.根据权利要求1或权利要求2所述的具有发光外护套的海底电缆,其特征在于所述阻水层为阻水带或无纺布或聚酯包带。
4.根据权利要求3所述的具有发光外护套的海底电缆,其特征在于所述绝缘屏蔽层为导电塑料。
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