关于埋地防腐层管道直流电位梯度(DCVG)测量与%IR计算的讨论

刘国

Discussion on DC Voltage Gradient (DCVG) Measurement and %IR Calculation of Buried Coating Pipeline

LIU Guo

图5 GB/T 19285-2014中%IR的计算原理示意图

Fig.5 Schematic diagram of calculation method of%IR in GB/T 19285-2014