WO2013000271A1 - 加强型光纤复合耐高温架空绝缘电缆 - Google Patents

加强型光纤复合耐高温架空绝缘电缆 Download PDF

Info

Publication number
WO2013000271A1
WO2013000271A1 PCT/CN2012/000812 CN2012000812W WO2013000271A1 WO 2013000271 A1 WO2013000271 A1 WO 2013000271A1 CN 2012000812 W CN2012000812 W CN 2012000812W WO 2013000271 A1 WO2013000271 A1 WO 2013000271A1
Authority
WO
WIPO (PCT)
Prior art keywords
fiber composite
optical fiber
stainless steel
high temperature
steel tube
Prior art date
Application number
PCT/CN2012/000812
Other languages
English (en)
French (fr)
Inventor
韦强启
朱波
张洪涛
Original Assignee
河南科信电缆有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 河南科信电缆有限公司 filed Critical 河南科信电缆有限公司
Publication of WO2013000271A1 publication Critical patent/WO2013000271A1/zh

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B9/00—Power cables
    • H01B9/008—Power cables for overhead application
    • 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
    • H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
    • H01B7/182—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring comprising synthetic filaments
    • H01B7/1825—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring comprising synthetic filaments forming part of a high tensile strength core
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B9/00—Power cables
    • H01B9/005—Power cables including optical transmission elements

Definitions

  • the utility model belongs to an overhead insulated cable, in particular to an alteration and construction suitable for an overhead line of an urban and rural power grid, and can be capable of withstanding a large tensile force of 2400 MPa and a long-term allowable operating temperature of over 180 ° C, and having communication and monitoring. Functional new overhead insulated cable.
  • conventional overhead insulated cables usually use copper stranded wires, aluminum stranded wires, aluminum alloy stranded wires, steel-cored aluminum stranded wires, etc. as conductors, and extruded outside the conductors to form an insulating layer, wherein the steel core aluminum stranded conductors.
  • the tensile strength performance index is the best, which can achieve 1240Mpa-1410Mpa, but the air corridors that can be used in rural areas, mountainous areas, and forest areas are gradually reduced, the tower distance is increased, the line environment is deteriorated, the line tension is increased, and the sag is correspondingly increased. The requirements for the tensile strength of the line are greatly improved.
  • the insulating layer is usually made of polyvinyl chloride, polyethylene, cross-linked polyethylene, etc., wherein the highest insulation and temperature resistance levels are cross-linked.
  • Ethylene insulation, long-term allowable operating temperature is only 90 ° C, still can not meet the requirements of heavy-duty line use, the overhead insulated cable produced by the prior art, and does not have communication function, so the original overhead insulated cable from the function, The laying environment, temperature resistance and current carrying capacity cannot meet the needs of the new situation of the power system. Do not meet the national requirements of the building is strong and smart grid for new overhead lines.
  • the technical problem to be solved by the present invention is to overcome the deficiencies of the prior art described above, and to provide a reinforced optical fiber composite high temperature resistant overhead insulated cable.
  • a reinforced optical fiber composite high temperature resistant overhead insulated cable including an electrical soft aluminum stranded wire as a conductor, and a stainless steel tube light unit and carbon fiber are placed in an electric soft aluminum stranded wire Compound plus Strong core, coated with high temperature insulation on the outside.
  • the inner and outer portions sequentially include a carbon fiber composite reinforcing core at the center, an adjacent outer layer of an electric soft aluminum monofilament and a stainless steel tube optical unit, and a high temperature resistant insulating material layer on the outer side.
  • the electrical soft aluminum monofilament is a 63% IACS electrical soft aluminum monofilament.
  • the high temperature resistant insulating material is silicone rubber or fluoroplastic.
  • the carbon fiber composite reinforcing core is a solid carbon fiber.
  • the carbon fiber composite reinforcing core is made of a plurality of fine carbon fiber strands.
  • At least one stainless steel tube light unit is stranded with a plurality of electrical soft aluminum monofilaments to form an adjacent outer layer.
  • the stainless steel tube light unit is composed of a plurality of optical fibers placed in a stainless steel tube, the stainless steel tube adopts a loose-sleeve structure, a special filling paste for light is injected into the gap of the stainless steel tube, and an aluminum layer is extruded outside the stainless steel tube.
  • the adjacent outer layer is a single tube stranded or multi-tube stranded.
  • the utility model increases the long-term allowable operating temperature to above 180 °C, and improves the tensile strength to 2400 MPa, and has functions of communication, alarm, information feedback and the like.
  • the pitch of the tower is constant, the tensile strength of the tower is increased, the sag is reduced, and the problem of cable sagging is effectively solved; the electrical soft aluminum monofilament is used to reduce the conductor resistance, and the electrical conductivity is well improved; The carbon fiber composite reinforcing core has zero conductivity, so there is no electromagnetic loss and electric corrosion, and the cable life is increased by about 2 times.
  • the stainless steel tube light unit can easily realize communication, monitoring and alarm under the strong protection of the cable.
  • the line operation condition is in a controlled state at the moment; using high temperature resistant materials such as silicone rubber or fluoroplastic as the insulation layer, the long-term allowable operating temperature is increased to 180 ⁇ or more, which can not only carry 1.5 times of current carrying capacity of conventional overhead insulated cables. It can also effectively melt the ice and snow on the cable to ensure the safe operation of the line.
  • high temperature resistant materials such as silicone rubber or fluoroplastic as the insulation layer
  • Embodiment 1 is a schematic structural view of Embodiment 1 of the present invention.
  • Embodiment 2 is a schematic structural view of Embodiment 2 of the present invention.
  • FIG. 3 is a schematic structural view of a stainless steel tube light unit of the present invention.
  • Embodiment 1 As shown in FIG. 1 , a reinforced optical fiber composite high temperature resistant overhead insulated cable includes a solid carbon fiber composite reinforcing core 2 at the center and 5 electrical soft aluminum monofilaments 1 and 1 from the inside to the outside.
  • the single-tube layered outer layer of the root stainless steel tube light unit 3 is stranded, and the outer layer is a high temperature resistant insulating material layer 4.
  • the high temperature resistant insulating material is silicone rubber or fluoroplastic; other materials may be used instead of the electrical soft aluminum monofilament as a conductor.
  • the stainless steel tube light unit is composed of a plurality of optical fibers 8 placed in a stainless steel tube 5, the stainless steel tube 5 is loosely packed, and the stainless steel tube 5 is filled with a special filling paste for light, 7 stainless steel. A layer of aluminum 6 is extruded outside the tube.
  • Embodiment 2 As shown in FIG. 2, a reinforced optical fiber composite high temperature resistant overhead insulated cable, which comprises a twisted seven fine carbon fiber strands at the center, in turn, to form a composite reinforcing core 2, and several roots. 63% IACS electrical soft aluminum monofilament 1 and two stainless steel tube light unit 3 stranded multi-tube stranded adjacent outer layer, the outer side is a silicone rubber layer or a fluoroplastic layer 4.
  • Manufacturing method stranding a fine carbon fiber composite core into a composite reinforcing core at a center position of a concentric stranded conductor, and then continuing to twist a 3 ⁇ 4 soft aluminum monofilament thereon, an electric soft aluminum monofilament in the same manner
  • the twisting direction of the adjacent layer should be reversed, and then the prefabricated stainless steel tube light unit is twisted with the outermost electrical soft aluminum monofilament.
  • the number of optical fibers of the stainless steel tube light unit is determined according to requirements, and finally the silicone rubber layer or fluorine is extruded.
  • the plastic layer is used to achieve a good combination between the stainless steel tube light unit and the fine carbon fiber composite reinforcing core and the electric soft aluminum strand.
  • Embodiment 3 A reinforced optical fiber composite high temperature resistant overhead insulated cable with a rated voltage of 10 kV should also be extruded with a semiconductive conductor shield.

Landscapes

  • Communication Cables (AREA)
  • Non-Insulated Conductors (AREA)

Abstract

一种加强型光纤复合耐高温架空绝缘电缆，包括作为导体的电工软铝绞线（1），在电工软铝绞线（1）中置入不锈钢管光单元（3）和碳纤维复合加强芯（2），外侧包覆耐高温绝缘材料（4）。本发明将长期允许运行温度提高到180°C以上，将抗拉能力提高到2400Mpa，同时具有通信、报警、信息反馈等功能。

Description

加强型光纤复合耐高温架空绝缘电缆 技术领域
[0001] 本实用新型属于架空绝缘电缆， 尤其涉及适用于城乡电网架空线路的改造和建设， 可以是一种能够承受 2400Mpa大强度拉力及长期允许运行温度达 180°C以上， 同时具有通信 和监测功能的新型架空绝缘电缆。
背景技术
[0002】 众所周知， 常规的架空绝缘电缆通常采用铜绞线、 铝绞线、 铝合金绞线、 钢芯铝绞 线等作为导体， 在导体外挤包绝缘层构成， 其中钢芯铝绞线导体的抗拉强度性能指标最好， 可以实现 1240Mpa-1410Mpa， 但在农村、 山区、 林区可以利用的空中走廊逐渐减少， 杆塔 距离增大， 线路环境恶化， 线路张力加大， 弧垂相应加大， 对线路抗拉强度的要求大幅提 高， 常规架空绝缘电缆已无法承受； 而绝缘层通常采用聚氯乙烯、 聚乙烯、 交联聚乙烯等， 其中绝缘性能及耐温等级最高的是交联聚乙烯绝缘， 长期允许运行温度也仅为 90°C， 仍然 无法满足大负荷线路使用的要求， 现有技术生产的架空绝缘电缆， 同时不具有通信功能， 所 以原有的架空绝缘电缆从功能上、 敷设环境上、 耐温等级及载流能力上都无法满足电力系统 新形势下的需求， 特别是无法满足国家建设坚强智能电网对新型架空线路的要求。
[0003】 近年来， 电缆企业普遍认识到了架空绝缘电缆自身的不足， 都在不断的探索改进， 如中国专利 200820178715.6 中公开了以单股或多股钢丝作为中心加强芯， 然后在其外绞合 铝或铝合金导体， 仍然不具有所需的抗拉能力； 而中国专利 200920208822.3 中采用的铜包 钢及铝包钢绞线的结构， 该结构承担拉力的还是钢丝， 与 述相比， 并无实质上的改进； 在 光电复合方面， 中国专利 200920231879.5 公丌了将不锈钢管光单元绞入到导体中， 作为通 信与电力的结合， 但其忽视了在大强度拉力下， 线路自身无法承担足够的拉力來保护光单元 的可靠运行， 依旧无法满足架空绝缘电缆在山地、 丘陵等复杂地理环境下的安全运行， 不符 合新形势下对架空绝缘电缆的抗拉强度高、 温升载流能力高、 通信功能稳定性高的 "三高" 要求。
实用新型内容
【0004] 本实用新型所要解决的技术问题在于克服上述现有技术的不足， 提供一种加强型光 纤复合耐高温架空绝缘电缆。
[0005] 为了解决上述技术问题采用以下技术方案： 一种加强型光纤复合耐高温架空绝缘电 缆， 包括作为导体的电工软铝绞线， 在电工软铝绞线中置入不锈钢管光单元和碳纤维复合加 强芯， 外侧包覆耐高温绝缘材料。
[0006] 内到外依次包括中心处的碳纤维复合加强芯、 电工软铝单丝和不锈钢管光单元绞 合而成的邻外层、 外侧为耐高温绝缘材料层。
[0007] 所述的电工软铝单丝为 63%IACS的电工软铝单丝。
[0008】 所述的耐高温绝缘材料为硅橡胶或氟塑料。
[0009] 所述的碳纤维复合加强芯为实心的碳纤维。
[ooio] 所述的碳纤维复合加强芯是 多根细碳纤维绞合制成的。
[0011] 至少一个不锈钢管光单元与若干条电工软铝单丝绞合形成邻外层。
[0012] 所述的不锈钢管光单元为 ώ若干条光纤置于一个不锈钢管内组成， 不锈钢管采用松 套结构， 不锈钢管空隙内注有光线专用填充膏， 不锈钢管外挤包一层铝层。
【0013】 邻外层是单管层绞式或多管层绞式。
[0014] 本实用新型将长期允许运行温度提高到 180°C以上， 将抗拉能力提高到 2400Mpa， 同 时具有通信、 报警、 信息反馈等功能。
[0015] 在杆塔档距不变的情况下， 自身的抗拉强度增加， 弧垂减少， 有效解决电缆下垂问 题； 采用电工软铝单丝， 使导体电阻降低， 导电能力得到很好的提升； 碳纤维复合加强芯的 导电率为零， 所以不会产生电磁损耗及电腐蚀等情况， 电缆使用寿命提高约 2倍； 不锈钢管 光单元在电缆强有力的保护下， 能够轻松实现通信、 监测、 报警等功能， 使线路运行情况时 刻处于受控状态； 采用硅橡胶或氟塑料等耐高温材料作为绝缘层， 将长期允许运行温度提高 到 180Ό以上， 不仅可承载常规架空绝缘电缆 1.5 倍的载流能力， 还可有效融化电缆上的冰 雪， 确保线路运行安全。
附图说明
【0016】 图 1为本实用新型实施例 1的结构示意图。
【0017】 图 2为本实用新型实施例 2的结构示意图。
[0018] 图 3为本实用新型不锈钢管光单元的结构示意图。
具体实施方式
10019】 实施例 1 : 如图 1所示， 一种加强型光纤复合耐高温架空绝缘电缆， 由内到外依次包 括中心处的实心碳纤维复合加强芯 2、 五根电工软铝单丝 1和一根不锈钢管光单元 3绞合而 成的单管层绞式的邻外层、 外侧为耐高温绝缘材料层 4。
[0020】 所述的耐高温绝缘材料为硅橡胶或氟塑料； 可以采用其它材料代替电工软铝单丝作 为导体。 [0021] 如图 3所示， 不锈钢管光单元为由若干条光纤 8置于一个不锈钢管 5 内组成， 不锈 钢管 5采用松套结构， 不锈钢管 5空隙内注有光线专用填充膏 7， 不锈钢管外挤包一层铝层 6。
[0022] 实施例 2: 如图 2所示， 一种加强型光纤复合耐高温架空绝缘电缆， ώ内到外依次包 括中心处的 ώ七根细碳纤维绞合制成复合加强芯 2、 若干根 63%IACS的电工软铝单丝 1和 两根不锈钢管光单元 3绞合而成的多管层绞式的邻外层、 外侧为硅橡胶层或氟塑料层 4。
[0023] 制造方法： 将细碳纤维复合芯绞合制成复合加强芯放在同心绞合式导体的中心位 置， 再继续以相同方式在其上面绞合 ¾工软铝单丝， 电工软铝单丝相邻层的绞向应相反， 然 后将预制的不锈钢管光单元与最外层的电工软铝单丝绞合， 不锈钢管光单元的光纤根数根据 需要确定， 最后挤包硅橡胶层或氟塑料层， 来实现不锈钢管光单元和细碳纤维复合加强芯与 电工软铝绞线之间的良好的组合。
[0024] 其他同实施例 1。
[0025] 实施例 3 : —种额定电压 10kV的加强型光纤复合耐高温架空绝缘电缆， 还应挤包半 导电导体屏蔽层。
[0026] 其他结构同实施例 1或实施例 2。

Claims

权 利 要 求 书
1. 一种加强型光纤复合耐高温架空绝缘电缆， 包括作为导体的电工软铝绞线， 其特征是： 在电工软铝绞线中置入不锈钢管光单元和碳纤维复合加强芯， 外侧包覆耐高温绝缘材料。
2. 根据权利要求 1 所述的加强型光纤复合贯通地线， 其特征是： 由内到外依次包括中心处 的碳纤维复合加强芯、 电工软铝单丝和不锈钢管光单元绞合而成的邻外层、 外侧为耐高温绝 缘材料层。
3. 根据权利要求 2 所述的加强型光纤复合贯通地线， 其特征是： 所述的电工软铝单丝为 63%IACS的电工软铝单丝。
4. 根据权利要求 1 或 2所述的加强型光纤复合贯通地线， 其特征是： 所述的耐高温绝缘材 料为硅橡胶或氟塑料。
5. 根据权利要求 1 或 2 所述的加强型光纤复合贯通地线， 其特征是： 所述的碳纤维复合加 强芯为实心的碳纤维。
6. 根据权利要求 1 或 2 所述的加强型光纤复合贯通地线， 其特征是： 所述的碳纤维复合加 强芯是 多根细碳纤维绞合制成的。
7. 根据权利要求 2 所述的加强型光纤复合贯通地线， 其特征是： 至少一个不锈钢管光单元 与若干条电工软铝单丝绞合形成邻外层。
8. 根据权利要求 2 或 7所述的加强型光纤复合贯通地线， 其特征是： 所述的不锈钢管光单 元为 ώ若干条光纤置于一个不锈钢管内组成， 不锈钢管采用松套结构， 不锈钢管空隙内注有 光线专用填充膏， 不锈钢管外挤包一层铝层。
9. 根据权利要求 2 或 7所述的加强型光纤复合贯通地线， 其特征是： 邻外层是单管层绞式 或多管层绞式。
PCT/CN2012/000812 2011-06-30 2012-06-12 加强型光纤复合耐高温架空绝缘电缆 WO2013000271A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201110180424.7 2011-06-30
CN 201110180424 CN102306522A (zh) 2011-06-30 2011-06-30 加强型光纤复合耐高温架空绝缘电缆

Publications (1)

Publication Number Publication Date
WO2013000271A1 true WO2013000271A1 (zh) 2013-01-03

Family

ID=45380367

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2012/000812 WO2013000271A1 (zh) 2011-06-30 2012-06-12 加强型光纤复合耐高温架空绝缘电缆

Country Status (2)

Country Link
CN (1) CN102306522A (zh)
WO (1) WO2013000271A1 (zh)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103426566A (zh) * 2012-05-20 2013-12-04 河南科信电缆有限公司 一种加强型光纤复合耐高温架空绝缘电缆的制造方法
CN107034709A (zh) * 2017-06-07 2017-08-11 扬州兴轮绳缆有限公司 一种缆绳

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102306522A (zh) * 2011-06-30 2012-01-04 河南科信电缆有限公司 加强型光纤复合耐高温架空绝缘电缆
CN102842379A (zh) * 2012-03-05 2012-12-26 韦强启 碳纤维复合芯软铝型线
CN103383878A (zh) * 2012-05-06 2013-11-06 河南科信电缆有限公司 一种铝合金型线光电复合缆
CN103383879A (zh) * 2012-05-06 2013-11-06 河南科信电缆有限公司 一种加强型光纤复合耐高温架空绝缘电缆
CN103383875A (zh) * 2012-05-06 2013-11-06 河南科信电缆有限公司 一种耐雷击低弧垂光纤复合架空地线
CN103390460A (zh) * 2012-05-10 2013-11-13 河南科信电缆有限公司 一种梅花形碳纤维光电复合架空导线
CN204834136U (zh) 2014-11-21 2015-12-02 3M创新有限公司 电力线缆
CN105469897A (zh) * 2015-12-31 2016-04-06 无锡市曙光电缆有限公司 一种加强抗压型同轴架空电缆
CN111696718B (zh) * 2020-06-29 2023-09-08 国网河南省电力公司周口供电公司 输电线路碳纤维芯光电复合导线及其生产方法
CN112466553A (zh) * 2020-11-19 2021-03-09 广州岭南电缆股份有限公司 一种内置光纤的铜导体及其制备方法

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2230106A (en) * 1989-03-14 1990-10-10 Bicc Plc Composite electric and optical aerial cable
CN201440349U (zh) * 2009-05-08 2010-04-21 江苏藤仓亨通光电有限公司 抗腐蚀耐雷击光纤复合架空地线
CN101901645A (zh) * 2010-08-04 2010-12-01 中天科技海缆有限公司 光纤复合贯通地线
CN102005266A (zh) * 2010-09-28 2011-04-06 国网电力科学研究院 铝包光缆复合绞线
CN102306522A (zh) * 2011-06-30 2012-01-04 河南科信电缆有限公司 加强型光纤复合耐高温架空绝缘电缆
CN202134258U (zh) * 2011-06-30 2012-02-01 河南科信电缆有限公司 加强型光纤复合耐高温架空绝缘电缆
CN202134275U (zh) * 2011-06-30 2012-02-01 河南科信电缆有限公司 加强型光纤复合贯通地线

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201788759U (zh) * 2010-09-14 2011-04-06 上海电缆研究所 智能型架空输电导线及其监测系统

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2230106A (en) * 1989-03-14 1990-10-10 Bicc Plc Composite electric and optical aerial cable
CN201440349U (zh) * 2009-05-08 2010-04-21 江苏藤仓亨通光电有限公司 抗腐蚀耐雷击光纤复合架空地线
CN101901645A (zh) * 2010-08-04 2010-12-01 中天科技海缆有限公司 光纤复合贯通地线
CN102005266A (zh) * 2010-09-28 2011-04-06 国网电力科学研究院 铝包光缆复合绞线
CN102306522A (zh) * 2011-06-30 2012-01-04 河南科信电缆有限公司 加强型光纤复合耐高温架空绝缘电缆
CN202134258U (zh) * 2011-06-30 2012-02-01 河南科信电缆有限公司 加强型光纤复合耐高温架空绝缘电缆
CN202134275U (zh) * 2011-06-30 2012-02-01 河南科信电缆有限公司 加强型光纤复合贯通地线

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103426566A (zh) * 2012-05-20 2013-12-04 河南科信电缆有限公司 一种加强型光纤复合耐高温架空绝缘电缆的制造方法
CN107034709A (zh) * 2017-06-07 2017-08-11 扬州兴轮绳缆有限公司 一种缆绳

Also Published As

Publication number Publication date
CN102306522A (zh) 2012-01-04

Similar Documents

Publication Publication Date Title
WO2013000271A1 (zh) 加强型光纤复合耐高温架空绝缘电缆
CN204537755U (zh) 三芯220kV交联聚乙烯绝缘光纤复合海底电力电缆
CN202394585U (zh) 光电复合电缆
CN202134258U (zh) 加强型光纤复合耐高温架空绝缘电缆
CN201514798U (zh) 反复收放轻型控制电缆
CN205984410U (zh) 一种柔性抗拉光纤复合岸电电缆
CN201904150U (zh) 8字型光纤复合低压电力电缆
CN202855413U (zh) 海上风能发电机用单芯电力电缆
CN201590286U (zh) 一种绝缘架空电缆
CN103383879A (zh) 一种加强型光纤复合耐高温架空绝缘电缆
CN106448852A (zh) 一种安全可靠的矿用特种电缆
CN202487270U (zh) 一种新型碳纤维电缆
CN104008792B (zh) 一种新型中压耐火电缆的生产工艺
CN202434250U (zh) 架空集束型光纤复合低压绝缘电缆
CN206672702U (zh) 一种矿物绝缘移动用光纤复合耐寒软电缆
CN108666040A (zh) 一种高强度抗拉软导线
CN210805302U (zh) 风电用大截面epr绝缘直流软电缆
CN202268206U (zh) 一种镁铝硅合金架空电缆
CN207977153U (zh) 光纤复合架空绝缘电缆
CN106448842A (zh) 一种无芯材绝缘架空电缆
CN217086164U (zh) 一种加强型平行集束架空绝缘导线
CN217181846U (zh) 一种多芯高载流风能耐扭转电缆
CN103426552A (zh) 一种加强型光纤复合耐高温架空绝缘电缆
CN110867277A (zh) 环保抗拉耐磨架空绝缘电缆及四芯结构架空绝缘电缆
CN204577167U (zh) 一种新型架空绝缘电缆

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 12805052

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 12805052

Country of ref document: EP

Kind code of ref document: A1