玻璃钢/复合材料 ›› 2016, Vol. 0 ›› Issue (8): 82-86.

• 应用研究 • 上一篇    下一篇

具有过渡点温度特性导线的力学计算及工程应用

鲍星辉1, 杨长龙2, 张玉良3, 金鹏2   

  1. 1.国网辽宁省电力有限公司,沈阳110005;
    2. 国网辽宁省电力有限公司沈阳供电公司,沈阳110003;
    3.辽宁立德电力工程设计有限公司,沈阳110179
  • 收稿日期:2016-03-14 出版日期:2016-08-28 发布日期:2016-08-28
  • 作者简介:鲍星辉(1958-),男,高级工程师,主要从事碳纤维复合芯导线的设计与应用,xinghuibao@163.com。
  • 基金资助:
    国家电网公司科技项目(SGLNSY00FZJS1402907)

MECHANICAL CALCULATION AND ENGINEERING APPLICATION FOR THE CONDUCTOR WITH THE INFLECTION POINT TEMPERATURE CHARACTERISTIC

BAO Xing-hui1, YANG Chang-long2, ZHANG Yu-liang3, JIN Peng 2   

  1. 1.Liaoning Electric Power Supply Co., Ltd., Shenyang 110005, China;
    2.Shenyang Power Supply Co., Shenyang 110003, China;
    3.Liaoning Leader Electric Power Engineering Design Co., Ltd.,Shenyang 110179, China
  • Received:2016-03-14 Online:2016-08-28 Published:2016-08-28

摘要: 具有过渡点温度特性导线是用线膨胀系数比钢线小很多的材料(如碳纤维复合材料)替代钢芯,与外层铝线绞制成特殊导线。该导线芯线具有极佳的耐热性和低线膨胀系数,可将导线允许温度提高至160℃或更高,从而提高了导线的输送容量,并且导线具有低弧垂特性。这种导线的架线力学特性与钢芯铝绞线不同,应用弹性变形的虎克定律以及导线悬链线方程推导了具有过渡点温度特性导线的过渡点温度和张力的计算方法,已在辽宁省多条送电线路的架线设计中应用,取得了很好的效果。

关键词: 碳纤维复合材料, 架空导线, 过渡点温度, 张力

Abstract: The special conductor with inflection point temperature characteristics is made of special core wire with outer stranded aluminum wire. In replace of steel core, the special core wire (such as carbon fiber composite) is made of material whose expansion coefficient is far smaller than steel wire. The special core wire has excellent heating tolerance and lower linear expansion coefficient, the temperature for conductor can be allowed to raise to 160 ℃ or higher. So the transmission capacity increases and the conductor is with low sag characteristics.The stringing mechanical properties of the conductor is different from ACSR. The calculation method of inflection point temperature and tension is derived from the conductor by using Hooke′s law of elastic deformation and catenary equation of conductor. The method has been applyed in multiple transmission lines in Liaoning province and achieved good results.

Key words: carbon fiber composite, overhead electrical conductors, inflection point temperature, tension

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