测量不确定度在大截面铝导体电缆直流电阻检测中的应用

Measurement uncertainty in the detection of large cross-section aluminum conductor cable DC resistance

影响大截面铝导体电缆导体电阻测量结果的不确定度来源的主要因素:电阻测量结果的不确定度、对测试环境温度的测量不准确、由于被测样品5米长度测量误差造成的不确定度。现依据JJF1059-199《9测量不确定度评定与表示》,对大截面铝导体电缆导体电阻测量不确定度加以完整叙述和分析。

The main factors of the sources of uncertainty that affect a large cross-section aluminum conductor cable conductor resistance measurement results ：The uncertainty of the results of the resistance measurements, Inaccurate measurements of The test environment temperature, Uncertainty due to measurement error measured sample length The 5 m. Pursuant JJF1059-1999 ＂Evaluation and Expression of Uncertainty in Measurement＂, Be a complete description and analysis of the large cross-section aluminum conductor cable conductor resistance measurement uncertainty.