Resistance welding—Welding current measurement for resistance welding—Part 4:Calibration system
IDT ISO 17657-4:2005
全国电焊机标准化技术委员会(SAC/TC 70)
GB/T 32514的本部分规定了在单相交流（50 Hz或60 Hz）或直流情况下，用于电阻焊焊接电流测量的焊接电流测量系统、电流传感器、焊接电流测量仪以及带有电流传感器的监控装置所用的校准系统和校准程序。
校准程序适用的焊接电流范围为0.5 kA～25 kA。
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