WO2018041217A1 - Anti-water treeing cable utilizing cross-linked polyethylene insulation material - Google Patents

Anti-water treeing cable utilizing cross-linked polyethylene insulation material Download PDF

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Publication number
WO2018041217A1
WO2018041217A1 PCT/CN2017/099909 CN2017099909W WO2018041217A1 WO 2018041217 A1 WO2018041217 A1 WO 2018041217A1 CN 2017099909 W CN2017099909 W CN 2017099909W WO 2018041217 A1 WO2018041217 A1 WO 2018041217A1
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layer
water
blocking layer
water blocking
cable
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Ceased
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PCT/CN2017/099909
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French (fr)
Chinese (zh)
Inventor
王达伟
邵海彬
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Jiangsu Zhongli Group Co Ltd
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Jiangsu Zhongli Group Co Ltd
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Publication of WO2018041217A1 publication Critical patent/WO2018041217A1/en
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/28—Protection against damage caused by moisture, corrosion, chemical attack or weather

Definitions

  • the utility model relates to a cable, in particular to a water-resistant tree cross-linked polyethylene insulation material cable.
  • the patent document with the authorization bulletin number CN201069676Y discloses a fully water-blocking water-resistant tree cross-linked polyethylene insulated power cable, which is composed of a water blocking conductor 1, an inner shielding layer 2, an insulating layer 3 and an outer shielding from the inside to the outside.
  • Layer 4 semi-conductive electric water inner layer 5, metal shielding layer 6, semi-conductive electric water outer layer 7, radial moisture barrier layer 8 and outer sheath layer 9;
  • three-core structure is composed of three insulated cores 10 and water blocking After the filling rope 11 is twisted, the outer layer is composed of a water blocking layer 12, a radial moisture barrier layer 8' and an outer sheath layer 9'.
  • the water blocking conductor 1 is formed by stranding a plurality of metal single wires 13 in a single metal wire.
  • the stranded insulating water blocking tape 14 is overlapped between the layers of the strands.
  • the utility model adopts the longitudinal and radial water blocking modes through the conductor, the insulating material and the cable structure, thereby effectively suppressing the immersion of the crosslinked cable during use and the generation of water trees in the insulation, and significantly reducing the failure rate of the crosslinked cable. , to provide a new cable product for the wire and cable industry.
  • the purpose of the utility model is to provide a water-resistant tree cross-linked polyethylene insulation material cable, which can effectively prevent water inflow into the cable and water tree in the cable insulation after water inlet.
  • a water-resistant tree cross-linked polyethylene insulation material cable comprises an outer sheath layer and a water blocking layer in order from the outside to the inside, wherein the water blocking layer is provided with an insulated core, and the insulated core is provided with a water-blocking filling rope
  • the insulated core comprises, in order from the outside to the inside, a metal shield layer semiconducting water inner layer, an outer shield layer, an insulating layer, an inner shield layer and a water blocking conductor, and a moisture barrier layer is disposed in the water blocking layer.
  • the material of the moisture barrier layer is a metal composite bag, the inside of the moisture barrier layer is provided with a metal armor layer, and the metal armor layer is provided with a water blocking filling rope.
  • the material of the moisture barrier layer is a steel-plastic composite tape.
  • Metal armor layer is galvanized copper wire armor
  • the utility model has the moisture barrier layer disposed in the water blocking layer, thereby preventing the moisture barrier layer from directly contacting the outer sheath layer. It reduces the problem of peeling caused by excessive temperature under the influence of external environment or overload condition.
  • the metal armor provided in the moisture barrier layer makes the moisture barrier material not directly contact with the water blocking filling rope, so that the moisture barrier layer does not fail due to looseness, and the metal armor not only plays a role. The role of electromagnetic shielding and mechanical protection.
  • the utility model transforms the cable so that the cable can effectively prevent the water from entering the cable, and the water tree is not generated in the cable insulation even after entering the water.
  • Figure 1 is a schematic view of the structure of the present invention.
  • a water-resistant tree cross-linked polyethylene insulation material cable includes an outer sheath layer 1 , a water blocking layer 2 , a moisture barrier layer 3 , a metal armor layer 4 , and a metal armor layer 4 .
  • An insulated core 12 is disposed, and a water-blocking filling cord 5 is disposed between the insulated cores 12, and the insulated core 12 includes a metal shielding layer 6, a semi-conductive water inner layer 7, and an outer shielding layer in order from the outside to the inside.
  • the material of the moisture barrier layer 3 is a metal composite bag, preferably a steel-plastic composite tape; the metal armor layer 4 is a galvanized copper wire armor, and the metal armor plays the role of electromagnetic shielding and mechanical protection,
  • the moisture barrier material does not directly contact the water blocking filler rope, so that the moisture barrier layer does not fail due to looseness.

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  • Insulated Conductors (AREA)

Abstract

An anti-water treeing cable utilizing a cross-linked polyethylene insulation material comprises an outer protection layer (1) and a water blocking layer (2) arranged sequentially from the outside to the inside. Insulation wire cores (12) are arranged in the water blocking layer (2). A water blocking filler (5) is arranged between the insulation wire cores (12). A moisture blocking layer (3) is arranged in the water blocking layer (2), and is made of a metal composite tape. A metal cladding layer (4) is arranged inside the moisture blocking layer (3). The water blocking filler (5) is arranged inside the metal cladding layer (4). Arranging the moisture blocking layer (3) inside the water blocking layer (2) can prevent the moisture blocking layer (3) from directly contacting the outer protection layer (1), reducing a coating degradation issue owing to a high temperature caused by an external environment or an overload. The metal cladding layer prevents the moisture blocking layer material from directly contacting the water blocking filler (5), and consequently, the moisture blocking layer does not become loose and as a result ineffective. The cable is utilized to prevent water from entering by employing a simple modification, and does not produce water trees in the cable insulation even if water enters the cable.

Description

一种抗水树交联聚乙烯绝缘材料电缆Water-resistant tree cross-linked polyethylene insulation cable 技术领域Technical field

本实用新型涉及一种电缆，具体是一种抗水树交联聚乙烯绝缘材料电缆。The utility model relates to a cable, in particular to a water-resistant tree cross-linked polyethylene insulation material cable.

背景技术Background technique

授权公告号为CN201069676Y的专利文献公开了一种全阻水抗水树交联聚乙烯绝缘电力电缆,结构由内到外依次是由阻水导体1、内屏蔽层2、绝缘层3、外屏蔽层4、半导电阻水内层5、金属屏蔽层6、半导电阻水外层7、径向挡潮层8和外护层9组成；三芯结构是由三根绝缘线芯10与阻水填充绳11绞合成缆后外层依次是阻水层12、径向挡潮层8’、外护层9’组成,阻水导体1是由多根金属单线13绞合而成,在金属单线13绞合的层与层之间重叠绕包绝缘阻水带14。本实用新型通过导体、绝缘材料、电缆结构采用纵向和径向阻水方式,从而有效的抑制交联电缆在使用过程中水分的浸入及绝缘中水树的产生,显着降低交联电缆故障率,为电线电缆行业提供一种新型电缆产品。The patent document with the authorization bulletin number CN201069676Y discloses a fully water-blocking water-resistant tree cross-linked polyethylene insulated power cable, which is composed of a water blocking conductor 1, an inner shielding layer 2, an insulating layer 3 and an outer shielding from the inside to the outside. Layer 4, semi-conductive electric water inner layer 5, metal shielding layer 6, semi-conductive electric water outer layer 7, radial moisture barrier layer 8 and outer sheath layer 9; three-core structure is composed of three insulated cores 10 and water blocking After the filling rope 11 is twisted, the outer layer is composed of a water blocking layer 12, a radial moisture barrier layer 8' and an outer sheath layer 9'. The water blocking conductor 1 is formed by stranding a plurality of metal single wires 13 in a single metal wire. The stranded insulating water blocking tape 14 is overlapped between the layers of the strands. The utility model adopts the longitudinal and radial water blocking modes through the conductor, the insulating material and the cable structure, thereby effectively suppressing the immersion of the crosslinked cable during use and the generation of water trees in the insulation, and significantly reducing the failure rate of the crosslinked cable. , to provide a new cable product for the wire and cable industry.

这种结构，当外界环境或超负荷情况的下极易因温度过高而导致挡潮层化皮，不仅导致挡潮层失效，还会因挡潮层的化皮而连电。This kind of structure, when the external environment or the overload condition is extremely easy to cause the moisture barrier layer to become skin due to the excessive temperature, not only causes the moisture barrier layer to fail, but also the electricity is connected due to the skin of the moisture barrier layer.

实用新型内容Utility model content

本实用新型的目的是提供一种抗水树交联聚乙烯绝缘材料电缆，该电缆能有效防止电缆内进水，以及进水后电缆绝缘内产生水树。The purpose of the utility model is to provide a water-resistant tree cross-linked polyethylene insulation material cable, which can effectively prevent water inflow into the cable and water tree in the cable insulation after water inlet.

为了达到上述技术目的，本实用新型的技术方案是：In order to achieve the above technical purpose, the technical solution of the present invention is:

一种抗水树交联聚乙烯绝缘材料电缆，由外向内依次包括外护层、阻水层，所述阻水层内设置有绝缘线芯，所述绝缘线芯间设置有阻水填充绳，所述绝缘线芯由外向内依次包括金属屏蔽层半导电阻水内层、外屏蔽层、绝缘层、内屏蔽层和阻水导体，在所述阻水层内设置有挡潮层，所述挡潮层的材料为金属复合袋，所述挡潮层的内部设置有金属铠装层，金属铠装层内设置有阻水填充绳。A water-resistant tree cross-linked polyethylene insulation material cable comprises an outer sheath layer and a water blocking layer in order from the outside to the inside, wherein the water blocking layer is provided with an insulated core, and the insulated core is provided with a water-blocking filling rope The insulated core comprises, in order from the outside to the inside, a metal shield layer semiconducting water inner layer, an outer shield layer, an insulating layer, an inner shield layer and a water blocking conductor, and a moisture barrier layer is disposed in the water blocking layer. The material of the moisture barrier layer is a metal composite bag, the inside of the moisture barrier layer is provided with a metal armor layer, and the metal armor layer is provided with a water blocking filling rope.

作为优选，所述挡潮层的材料为钢塑复合带。金属铠装层为镀锌铜丝铠装Preferably, the material of the moisture barrier layer is a steel-plastic composite tape. Metal armor layer is galvanized copper wire armor

本实用新型将挡潮层设置在阻水层内，避免了挡潮层直接与外护层接触， 降低了在外界环境或超负荷情况的影响下因温度过高而导致的化皮问题。另一方面，在挡潮层内设置的金属铠装，使得挡潮层材料不会直接与阻水填充绳接触，从而不会因松散而导致挡潮层失效，可见金属铠装不仅仅起到电磁屏蔽和机械保护的作用。本实用新型通过简单的技术变换，使得电缆能有效防止电缆内进水，即使进水后也不会在电缆绝缘内产生水树。The utility model has the moisture barrier layer disposed in the water blocking layer, thereby preventing the moisture barrier layer from directly contacting the outer sheath layer. It reduces the problem of peeling caused by excessive temperature under the influence of external environment or overload condition. On the other hand, the metal armor provided in the moisture barrier layer makes the moisture barrier material not directly contact with the water blocking filling rope, so that the moisture barrier layer does not fail due to looseness, and the metal armor not only plays a role. The role of electromagnetic shielding and mechanical protection. The utility model transforms the cable so that the cable can effectively prevent the water from entering the cable, and the water tree is not generated in the cable insulation even after entering the water.

附图说明DRAWINGS

图1为本实用新型的结构示意图。Figure 1 is a schematic view of the structure of the present invention.

具体实施方式detailed description

下面结合附图和具体实施方式对本实用新型作进一步详细的说明。The present invention will be further described in detail below in conjunction with the drawings and specific embodiments.

如图1所示，一种抗水树交联聚乙烯绝缘材料电缆，由外向内依次包括外护层1、阻水层2，挡潮层3、金属铠装层4，金属铠装层4内设置有绝缘线芯12，所述绝缘线芯12间设置有阻水填充绳5，所述绝缘线芯12由外向内依次包括金属屏蔽层6、半导电阻水内层7、外屏蔽层8、绝缘层9、内屏蔽层10和阻水导体11。绝缘层9的材料选择抗水树交联聚乙烯绝缘材料。As shown in FIG. 1 , a water-resistant tree cross-linked polyethylene insulation material cable includes an outer sheath layer 1 , a water blocking layer 2 , a moisture barrier layer 3 , a metal armor layer 4 , and a metal armor layer 4 . An insulated core 12 is disposed, and a water-blocking filling cord 5 is disposed between the insulated cores 12, and the insulated core 12 includes a metal shielding layer 6, a semi-conductive water inner layer 7, and an outer shielding layer in order from the outside to the inside. 8. Insulating layer 9, inner shield layer 10 and water blocking conductor 11. The material of the insulating layer 9 is selected to be resistant to water tree crosslinked polyethylene insulation.

所述挡潮层3的材料为金属复合袋，优选钢塑复合带；所述金属铠装层4为镀锌铜丝铠装，金属铠装在起到电磁屏蔽和机械保护作用的同时，使得挡潮层材料不会直接与阻水填充绳接触，从而不会因松散而导致挡潮层失效。The material of the moisture barrier layer 3 is a metal composite bag, preferably a steel-plastic composite tape; the metal armor layer 4 is a galvanized copper wire armor, and the metal armor plays the role of electromagnetic shielding and mechanical protection, The moisture barrier material does not directly contact the water blocking filler rope, so that the moisture barrier layer does not fail due to looseness.

上述实施例不以任何方式限制本实用新型，凡是采用等同替换或等效变换的方式获得的技术方案均落在本实用新型的保护范围内。 The above embodiments are not intended to limit the present invention in any way, and all the technical solutions obtained by means of equivalent replacement or equivalent transformation fall within the protection scope of the present invention.

Claims (3)

一种抗水树交联聚乙烯绝缘材料电缆，由外向内依次包括外护层、阻水层，所述阻水层内设置有绝缘线芯，所述绝缘线芯间设置有阻水填充绳，所述绝缘线芯由外向内依次包括金属屏蔽层半导电阻水内层、外屏蔽层、绝缘层、内屏蔽层和阻水导体，其特征在于：在所述阻水层内设置有挡潮层，所述挡潮层的材料为金属复合袋，所述挡潮层的内部设置有金属铠装层，金属铠装层内设置有阻水填充绳。A water-resistant tree cross-linked polyethylene insulation material cable comprises an outer sheath layer and a water blocking layer in order from the outside to the inside, wherein the water blocking layer is provided with an insulated core, and the insulated core is provided with a water-blocking filling rope The insulated core comprises, in order from the outside to the inside, a metal shield layer semiconducting water inner layer, an outer shield layer, an insulating layer, an inner shield layer and a water blocking conductor, wherein the water blocking layer is provided with a block In the tidal layer, the material of the moisture barrier layer is a metal composite bag, the inside of the moisture barrier layer is provided with a metal armor layer, and the metal armor layer is provided with a water blocking filling rope. 根据权利要求1所述的一种抗水树交联聚乙烯绝缘材料电缆，其特征在于：所述挡潮层的材料为钢塑复合带。The water-resistant tree cross-linked polyethylene insulation cable according to claim 1, wherein the material of the moisture barrier layer is a steel-plastic composite tape. 根据权利要求1所述的一种抗水树交联聚乙烯绝缘材料电缆，其特征在于：所述金属铠装层为镀锌铜丝铠装。 The water-resistant tree cross-linked polyethylene insulation cable according to claim 1, wherein the metal armor layer is a galvanized copper wire armor.
PCT/CN2017/099909 2016-08-31 2017-08-31 Anti-water treeing cable utilizing cross-linked polyethylene insulation material Ceased WO2018041217A1 (en)

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CN201621027126.9U CN206075910U (en) 2016-08-31 2016-08-31 A kind of water resistant tree crosslinked polyethylene insulation material cable

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110010297A (en) * 2019-05-14 2019-07-12 安徽华宇电缆集团有限公司 A kind of medium voltage power cable for mud-resistant oil platform and its manufacturing method
CN116013597A (en) * 2023-01-10 2023-04-25 江苏润华电缆股份有限公司 Dampproofing fire-retardant insulating power cable
US12640284B2 (en) 2022-11-25 2026-05-26 L's Cable & System Ltd. Marine cable for offshore wind power having an improved water-tree property

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN206075910U (en) * 2016-08-31 2017-04-05 江苏中利集团股份有限公司 A kind of water resistant tree crosslinked polyethylene insulation material cable

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CN201378460Y (en) * 2009-04-10 2010-01-06 杨斌 A new type of cross-linked cable
US20100307815A1 (en) * 2009-05-29 2010-12-09 General Dynamics Advanced Information Systems Spliced cable with overmolded water proof coating and method for making the same
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CN104616772A (en) * 2015-01-30 2015-05-13 安徽省高沟电缆有限公司 Multi-core waterproof and moistureproof cable
CN105374430A (en) * 2014-08-25 2016-03-02 陈强 Seabed three-core armored radial water-blocking cable
CN206075910U (en) * 2016-08-31 2017-04-05 江苏中利集团股份有限公司 A kind of water resistant tree crosslinked polyethylene insulation material cable

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Publication number Priority date Publication date Assignee Title
CN201378460Y (en) * 2009-04-10 2010-01-06 杨斌 A new type of cross-linked cable
US20100307815A1 (en) * 2009-05-29 2010-12-09 General Dynamics Advanced Information Systems Spliced cable with overmolded water proof coating and method for making the same
CN201689731U (en) * 2009-12-30 2010-12-29 广东新南达电缆实业有限公司 Complete-water-blocking medium-pressure crosslinked polyethylene insulation power cable
CN202189611U (en) * 2011-07-29 2012-04-11 湖北龙腾红旗电缆(集团)有限公司 Cross-linked polyethylene insulation water-blocking power cable
CN105374430A (en) * 2014-08-25 2016-03-02 陈强 Seabed three-core armored radial water-blocking cable
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110010297A (en) * 2019-05-14 2019-07-12 安徽华宇电缆集团有限公司 A kind of medium voltage power cable for mud-resistant oil platform and its manufacturing method
US12640284B2 (en) 2022-11-25 2026-05-26 L's Cable & System Ltd. Marine cable for offshore wind power having an improved water-tree property
CN116013597A (en) * 2023-01-10 2023-04-25 江苏润华电缆股份有限公司 Dampproofing fire-retardant insulating power cable

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