基于钢芯铝绞线的铝合金芯铝绞线载流量简化计算法

Research on Simplified Calculation for Current-carrying Capacity of Aluminum Alloy Core Aluminum Strand Conductor

提出了一种铝合金芯铝绞线载流量的计算方法,根据导线载流量的理论计算方法,分析钢芯铝绞线和铝合金芯铝绞线在载流量计算中的不同,提出了铝合金芯铝绞线载流量的简化算法。利用该算法计算了某型号铝合金芯铝绞线在不同环境温度下的载流量,然后对该导线进行载流量试验,对比计算值与实测值,分析简化计算法的误差。结果表明,该简化算法计算量小且计算精度满足工程要求,可以为铝合金芯铝绞线载流量的分析提供参考。

According to the characteristics that the current-carrying capacity calculation of aluminum alloy core alu- minum stranded conductor is complicated,this paper proposes a simplified method for calculating the current-carrying capacity of the wire. It is studied the theoretical method for calculating the current-carrying capacity of the wire, ac- cording to the characteristics of steel core aluminum stranded wire and aluminum alloy cored aluminum strand, the difference in current-carrying calculation is analyzed, it proposed the calculation method for current-carrying of alu- minum alioy core aluminum stranded conductor can be simplified, and the method is used to calculate some aluminum alloy core aluminum stranded conductor in different ambient temperature. Then the experiment of current-carrying ca- pacity on the wire is done,the experimental value is recorded,it compared the calculated value and experimeiltal val- ue, it analyzed the reasons of errors of simplified calculation method. The experimental results show that the simpli- fied method amount of calculation is significantly reduced,and the calculation accuracy can meet the requirements of engineering, which can be a reference for the current-carrying capacity analysis of aluminum alloy core aluminum stranded conductor.