钢芯铝绞线用硬铝线电阻率测量不确定度评定与分析

Evaluation and Analysis of Uncertainty in Measurement of Resistivity of Hard-drawn Aluminum Wire for Aluminum Conductor Steel Reinforced Cable

对钢芯铝绞线用硬铝线电阻率测量过程和数学模型进行分析,对影响测量结果准确度的电阻、质量、温度及长度测量等影响分量进行不确定度评定,并给出提高电阻率测量结果准确性和可靠性的方法及注意事项。

The resistivity measurement process and mathematical model of hard-drawn aluminum wire for aluminum conductor steel reinforced cable are analyzed.Uncertainty is evaluated for the influencing components of resistance,mass,temperature and length measurement that affect the accuracy of the measurement results,and methods and precautions for improving the accuracy and reliability of the resistivity measurement results are given.