WO2013131217A1 - 碳纤维复合芯软铝型线 - Google Patents

碳纤维复合芯软铝型线 Download PDF

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Publication number
WO2013131217A1
WO2013131217A1 PCT/CN2012/001215 CN2012001215W WO2013131217A1 WO 2013131217 A1 WO2013131217 A1 WO 2013131217A1 CN 2012001215 W CN2012001215 W CN 2012001215W WO 2013131217 A1 WO2013131217 A1 WO 2013131217A1
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Prior art keywords
carbon fiber
composite core
wire
fiber composite
soft aluminum
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PCT/CN2012/001215
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English (en)
French (fr)
Inventor
韦强启
姜新斌
王桂花
Original Assignee
Wei Qiangqi
Jiang Xinbin
Wang Guihua
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Application filed by Wei Qiangqi, Jiang Xinbin, Wang Guihua filed Critical Wei Qiangqi
Publication of WO2013131217A1 publication Critical patent/WO2013131217A1/zh

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B5/00—Non-insulated conductors or conductive bodies characterised by their form
    • H01B5/08—Several wires or the like stranded in the form of a rope
    • H01B5/10—Several wires or the like stranded in the form of a rope stranded around a space, insulating material, or dissimilar conducting material
    • H01B5/102—Several wires or the like stranded in the form of a rope stranded around a space, insulating material, or dissimilar conducting material stranded around a high tensile strength core
    • H01B5/105—Several wires or the like stranded in the form of a rope stranded around a space, insulating material, or dissimilar conducting material stranded around a high tensile strength core composed of synthetic filaments, e.g. glass-fibres
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B5/00—Non-insulated conductors or conductive bodies characterised by their form
    • H01B5/02—Single bars, rods, wires, or strips

Definitions

  • Carbon fiber composite core soft aluminum type wire TECHNICAL FIELD This invention relates to the electric power wire. BACKGROUND OF THE INVENTION
  • Existing carbon fiber composite core wires have the disadvantages of poor heat resistance, poor safety and reliability, and short service life.
  • SUMMARY OF THE INVENTION The present invention provides a carbon fiber composite core soft aluminum profile. The invention solves the problems of poor heat resistance, poor safety and reliability, and short service life of the existing carbon fiber composite core wire.
  • the present invention adopts the following technical solutions: Carbon fiber composite core soft aluminum wire, the wire should be composed of a plurality of molded soft aluminum single wire and carbon fiber composite core, and a plurality of formed soft aluminum single wires are concentrically twisted outside the carbon fiber composite core.
  • FIG. 1 is a cross-sectional view of the present invention
  • Figure 2 is a side view of the present invention.
  • the symbol in the figure shows: Carbon fiber composite core 1, molded soft aluminum single wire 2.
  • the carbon fiber composite core soft aluminum wire, the wire should be composed of a plurality of molded soft aluminum single wire and carbon fiber composite core, and a plurality of formed soft aluminum single wires are concentrically twisted outside the carbon fiber composite core.
  • Technical requirements for the wire of the invention :
  • the wire shall be concentrically twisted from a plurality of molded soft aluminum single wires and a carbon fiber composite core.
  • the formed soft aluminum single wire used before twisting shall meet the following requirements.
  • the surface of the formed soft aluminum single wire shall be smooth and uniform in shape, and shall not have any defects that are not commensurate with good industrial products.
  • the tensile strength of the formed soft aluminum single wire should be (60 ⁇ 95) MPa.
  • the resistivity of the molded soft aluminum single wire at 20 ° C shall not exceed 0. 027367 ⁇ ⁇ mm7m. 1. Area and allowable deviation
  • the cross-sectional geometry of the formed soft aluminum single wire shall meet the design requirements.
  • the cross-sectional area shall not be less than 98% of the cross-sectional area specified by the corresponding specifications, and shall not exceed 102% of the specified cross-sectional area.
  • the carbon fiber composite core shall comply with the following regulations.
  • Carbon fiber composite cores should be round, smooth, crack-free, fiber-free, and other defects that are inconsistent with good industrial products.
  • the tensile strength of the carbon fiber composite core shall comply with the requirements of Table 1.
  • the measured diameter of the carbon fiber composite core should be used.
  • the diameter deviation and out-of-roundness of the carbon fiber composite core shall comply with the requirements of Table 2.
  • the density of the carbon fiber composite core is shown in the table.
  • the carbon fiber composite core has a single delivery length of not less than 5000m, which allows the maximum delivery according to the purchaser's requirements.
  • the length tolerance is -0%, +0. 5%. Unless the purchaser has an agreement with the manufacturer in advance, delivery is allowed within the length specified by the agreement between the parties.
  • the tensile strength loss rate is not more than 5% of the tensile strength at normal temperature.
  • the carbon fiber composite core should be allowed to stand at a low temperature of -40 ° C for 3 hours, and its tensile strength loss rate is not more than 5% of the tensile strength at normal temperature.
  • the carbon fiber composite core should pass a fluorescent ultraviolet lamp with a wavelength of less than 400 nm. After exposure for 1.55 W/m1 ⁇ 4 n m for 1000 h, the surface is not sticky, no peeling and cracking, and the tensile strength loss rate is not more than 5% of tensile strength at room temperature.
  • the carbon fiber composite core shall be wound on a cylinder of 55 times its own diameter at a winding speed of not more than 5r/min for 5 turns, and the surface layer shall not be cracked or peeled.
  • the carbon fiber composite core shall be twisted by a sample of 200 times its own diameter at a torsion speed of not more than 2r/min for 720°, and the surface layer shall not be cracked.
  • the carbon fiber composite core should be able to withstand at least 25% of its rated breaking force.
  • the pressure is stable.
  • the contact length is 100.
  • the core is not subjected to pressure test.
  • the surface layer is not cracked or peeled. 2. 11 corrosion resistance
  • the carbon fiber composite core should be able to be sprayed through a 5% sodium chloride solution at a running temperature for at least 15 test cycles, and the surface should be smooth and free of visible corrosion.
  • the carbon fiber composite core should be placed in a 150 ⁇ environment for 1 h, then cooled by room temperature water spray for 1 h, and the cycle test is repeated 100 times.
  • the tensile strength loss rate should not be greater than 10% of the tensile strength at normal temperature.
  • the thermal life evaluation of carbon fiber composite core can be selected according to IEC60216 standard: 180 °C (190 °C), 195 °C (205 °C), 210 °C (220 °C) three-point aging temperature, fracture 50% of tensile strength as the end of life parameter, the minimum thermal aging temperature point should not be shorter than 5000h, the highest temperature point should be no less than 100h (if possible should be less than 500h), otherwise the temperature point should be re-selected, according to this test calculation
  • the heat-resistant temperature is 150 ° C ( 160 ° C ) and the service life is not less than 40 years.
  • the carbon fiber composite core does not allow any form of joint.
  • a recommended wire structure size table is given in Appendix B. According to the actual needs of the project, both the supplier and the buyer may extend the relevant wire specifications according to the design requirements and shall comply with the performance requirements specified in this standard.
  • the surface of the wire should be free of defects visible to the naked eye (or normal corrected vision), such as obvious scratches, indentations, etc., and must not have any defects that are not commensurate with good industrial goods. 5 twisted
  • All formed soft aluminum single wires of the wire shall be concentrically twisted.
  • Each layer of single wire shall be evenly and tightly stranded on the carbon fiber composite core or inner stranded wire. 5. 4
  • the stranded pitch ratio of the conductor shall comply with the requirements of Table 5.
  • the pitch-to-diameter ratio of any layer shall not be greater than the pitch-to-diameter ratio of its adjacent inner layer.
  • the carbon fiber composite core does not allow any form of joint during the stranding process.
  • the formed soft aluminum single wire is allowed to have the joint.
  • the joint shall conform to the geometry of the original single wire, ie the joint shall be smoothed, shaped to be the same as the original shape, and avoiding bending.
  • the molded soft aluminum single wire joint shall not exceed the values specified in Table 6. In the same single line or the entire strand, the distance between any two joints should be no less than 15m.
  • the connector can be used with a resistor pair. These joints should be made in accordance with good manufacturing practices. The strength of the joint after welding should reach (60-80) Mpao
  • the rated breaking force of the wire shall be the sum of the tensile force of the formed soft aluminum single wire part and the carbon fiber composite core pulling force.
  • the tensile force of the aluminum part is the product of the stranded aluminum area and the minimum tensile strength of the soft aluminum single line of 95%
  • the tensile force of the carbon fiber composite core is the product of the composite core area and its minimum tensile strength of 98%.
  • 9 DC resistance of the wire The DC resistance of the wire is calculated by taking the area of the conductive aluminum portion of the wire at a resistivity of 20 °C from 0. 027367 ⁇ ⁇ ⁇ 7 ⁇ and the standard increment shown in Table 7.

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  • Non-Insulated Conductors (AREA)
  • Resistance Heating (AREA)

Abstract

一种碳纤维复合芯软铝型线，涉及电力用导线。该碳纤维复合芯软铝型线由多根成型软铝单线（2）和碳纤维复合芯（1）构成，多根成型软铝单线同心绞制于碳纤维复合芯外面。该碳纤维复合芯软铝型线具有耐热性优良，使用安全，可靠性好，使用寿命长等优点。

Description

Figure imgf000003_0001
碳纤维复合芯软铝型线 技术领域 本发明涉及电力用导线。 背景技术 现有的碳纤维复合芯线存在耐热性能差， 安全可靠性差， 使用寿 命短的缺点。 发明内容 本发明提供一种碳纤维复合芯软铝型线，本发明解决了现有的碳 纤维复合芯线存在耐热性能差， 安全可靠性差， 使用寿命短的问题。 为解决上述问题， 本发明采用如下技术方案： 碳纤维复合芯软铝 型线， 导线应由多根成型软铝单线和碳纤维复合芯构成， 多根成型软 铝单线同心绞制于碳纤维复合芯外面。 本发明的优点有：耐热性优良，使用安全可靠性好，使用寿命长。 附图说明 图 1是本发明截面图； 图 2是本发明侧视图。 图中符号说明： 碳纤维复合芯 1、 成型软铝单线 2。 具体实施方式 下面用最佳的实施例对本发明做详细的说明。 如图 1-2所示， 碳纤维复合芯软铝型线， 导线应由多根成型软铝 单线和碳纤维复合芯构成，多根成型软铝单线同心绞制于碳纤维复合 芯外面。 本发明导线的技术要求：
1 成型的软铝单线
导线应由多根成型软铝单线和碳纤维复合芯同心绞制而成。 绞制前所用的成型软铝单线应符合以下要求。
1. 1 表面质量 成型的软铝单线表面应光洁、形状完整一致， 并不得有与良好的 工业商品不相称的任何缺陷。
1. 2 抗拉强度
成型的软铝单线的抗拉强度应满足 (60〜95) MPa。
1. 3 断裂伸长率 成型的软铝单线在标距为 250譲时， 拉断后的伸长率应不小于 20. 0%。
1. 4 电阻率
成型的软铝单线 20°C时的电阻率应不大于 0. 027367 Ω · mm7m。 1. 面积及允许偏差 成型的软铝单线其断面几何尺寸应符合设计要求，横断面积不小 于相应规格规定截面积的 98%， 也不应大于其规定截面积 102%。
1. 6 密度 为计算成型的软铝单线标称重量及截面积等， 20°C时铝的密度取 2. 703 g/cm:i。
1. 7 接头
成盘的成型的软铝单线不允许有任何接头.
2 碳纤维复合芯
碳纤维复合芯应符合以下的规定。
2. 1 表面质量
碳纤维复合芯应圆整、 光洁、 无裂纹， 无纤维裸露等与良好工业 商品不一致的缺陷。
2. 2 抗拉强度
碳纤维复合芯的抗拉强度应符合表 1的规定。 根据抗拉强度计算 碳纤维复合芯拉断力时， 应使用碳纤维复合芯的实测直径。
碳纤维复合芯的抗拉强度
Figure imgf000005_0001
2. 3 直径和直径偏差
碳纤维复合芯直径偏差、 不圆度应符合表 2的规定。
表 2 碳纤维复合芯直径偏差和不圆度
Figure imgf000005_0002
2. 4 线膨胀系数 碳纤维复合芯的线膨胀系数应符合表 3的规定。
碳纤维复合芯的线膨胀系数
Figure imgf000006_0001
密度
为计算标称重量， 碳纤维复合芯的密度见表
表 4 碳纤维复合芯的密度
Figure imgf000006_0002
2. 6 长度及长度公差
碳纤维复合芯其单根交货长度应不小于 5000m， 允许按购买方要 求的最度交货， 长度允许公差为 -0% 、 +0. 5%。 除非购买方与制造方 预先订有协议， 才允许以双方协议规定的长度交货。
2. 7 环境性能
2. 7. 1 高温性能
碳纤维复合芯应在 180Ό的高温环境下静置 3小时后，某抗拉强度 损失率不大于常温时抗拉强度的 5%。
2. 7. 2 低温性能 (待验证）
碳纤维复合芯应在 -40°C的低温环境下静置 3小时后，其抗拉强度 损失率不大于常温时抗拉强度的 5%。
2. 7. 3 抗紫外线 （待验证） 碳纤维复合芯应通过波长小于 400nm的荧光紫外灯， 辐照度为 1. 55W/m¼nm暴露 1000h后， 其表面不发黏、 无起皮和龟裂现象， 且抗 拉强度损失率不大于常温时抗拉强度的 5%。
2. 8 卷绕性能
碳纤维复合芯应在 55倍自身直径的筒体上以不大于 5r/min的卷 绕速度卷绕 5圈试验， 其表层不幵裂、 不起皮。
2. 9 扭转性能
碳纤维复合芯应以 200倍自身直径的长度试样以不大于 2r/min的 扭转速度扭转 720° 试验， 其表层不开裂。
2. 10 压扁性能
碳纤维复合芯至少应能承受自身额定拉断力的 25%大小的压力平 稳加载接触长度为 100醒芯棒上受压试验， 其表层不幵裂、 不脱皮。 2. 11 耐腐蚀性能
碳纤维复合芯在运行温度下应能通过 5%氯化纳溶液喷雾循环至 少 15个试验周期， 其表面应光洁无可见腐蚀现象。
2. 12 湿热老化
碳纤维复合芯应在 150Ό环境中置放 lh，然后室温水喷淋冷却 lh， 如此反复循环 100次试验， 其抗拉强度损失率应不大于常温时抗拉强 度的 10%。
2. 13 热老化寿命 （待验证）
碳纤维复合芯的热寿命评定， 可按 IEC60216标准推荐选取 180°C ( 190°C ) 、 195°C (205°C ) 、 210°C ( 220°C ) 三点老化温度， 断裂 抗拉强度的 50%作为寿命终止参数， 其最低热老化温度点应不短于 5000h, 最高温度点应不短于 100h (如果可能应小于 500h)， 否则温度 点应重新选取， 按此试验推算耐热温度 150°C ( 160°C )使用寿命不低 于 40年。
2. 14 接头
碳纤维复合芯不允许有任何形式接头。
3 导线结构
附录 B给出了推荐的导线结构尺寸表。 根据工程实际需要， 供需 双方可按设计要求协议延伸相关导线规格，且应符合本标准规定的性 能要求。
4 成品导线
导线表面不应有肉眼（或正常校正视力）可见的缺陷， 例如明显 的划痕， 压痕等等， 并不得有与良好的工业商品不相称的任何缺陷。 5 绞制
5. 1 导线的所有成型的软铝单线应同心绞合。
5. 2 相邻层绞向应相反。 除非用户在订货时另有特别说明， 最外层 绞向应为右向。
5. 3 每层单线应均匀紧密地绞合在碳纤维复合芯或内层绞线上。 5. 4 导线的绞合节径比应符合表 5的规定。
导线线的绞合节径比
结构元件 绞 层 节径比 （倍）
夕卜 层 10〜14
成型的软铝单线绞
邻外层 10〜16
层
内 层 10〜16 5. 5 对于有多层的导线， 任何层的节径比应不大于其相邻内层的节 径比。
5. 6 绞制前， 构成导线的所有单线的温度应基本一致。
6接头
6. 1 绞制过程中， 碳纤维复合芯不允许有任何形式的接头。
6. 2 绞制前每根制造长度的导线不应使用有接头的如第 4. 1所述的 成型软铝单线， 成品导线的最外层软铝单线不应有任何接头。
6. 3 绞制过程中不应有为了要达到导线长度要求而制作的成型软铝 单线接头。
6. 4 在绞制过程中， 成型的软铝单线若意外断裂， 只要这种断裂既 不是由单线内在缺陷， 也不是因为使用短长度软铝单线所致， 则成型 的软铝单线允许有接头。接头应与原单线的几何形状一致， 即接头位 置应修光， 其形状与原形状相同， 且避免弯折。
成型的软铝单线的接头应不超过表 6的规定值。 在同一根单线上 或整根绞线中， 任何两个接头间的距离应不小于 15m。
接头可用电阻对悍。 这些接头的制作应与良好的生产工艺一致。 焊接后接头强度应达到 （60-80) Mpao
成型的软铝单线允许接头数
Figure imgf000009_0001
7 线密度——单位长度质量 1215
8
7. 1 成型的软铝单线与碳纤维复合芯绞合后的铝线单位长度质量， 按表 7规定的绞合增量并依据软铝单线截面面积计算。铝密度： 20°C 时取 2. 703 g/cm:i, 碳纤维复合芯线密度按表 4规定。 表 7 软铝型线因绞合引起的标准增量 a
Figure imgf000010_0001
8 导线的拉断力 导线的额定抗断力应为成型的软铝单线部分的拉力与碳纤维复 合芯拉力的总和。为规范和偏安全起见， 铝部分的拉力采用绞合铝面 积与软铝单线最小抗拉强度 95%的乘积； 碳纤维复合芯的拉力采用复 合芯面积与其最小抗拉强度 98%的乘积。 9 导线的直流电阻 以导线导电的铝部分的面积按 20 °C时的电阻率取 0. 027367 Ω · πιπι7πι与表 7所示的标准增量来计算导线的直流电阻。 见附录 Β的 表中规定， 直流电阻温度增量系数为 0. 00416。 最后应说明的是： 显然， 上述实施例仅仅是为清楚地说明本发明 所作的举例， 而并非对实施方式的限定。对于所属领域的普通技术人 员来说， 在上述说明的基础上还可以做出其它不同形式的变化或变 动。这里无需也无法对所有的实施方式予以穷举。而由此所引申出的 显而易见的变化或变动仍处于本发明的保护范围之中。

Claims

1、 碳纤维复合芯软铝型线， 其特征在于， 导线应由多根成型软 铝单线和碳纤维复合芯构成， 多根成型软铝单线同心绞制于碳纤维复 合芯外面。
PCT/CN2012/001215 2012-03-05 2012-08-30 碳纤维复合芯软铝型线 WO2013131217A1 (zh)

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