The finished joints shall be inspected with a holiday detector set at 8kV DC.
补好的补口应使用带8千伏直流电的漏涂检测仪来检测。
The holiday detector shall be checked with a DC voltmeter at least once each shift to ensure accuracy.
应至少在每次换班时用直流电伏特计检查一次漏涂检测仪以确保其准确度。
The final inspection of the coating, before the pipe is put into trench, being carried out by a holiday detector which applies a high voltage current across the coating.
在管子放入管沟前，利用覆盖层检查仪对管道覆盖层进行最后的检查，它在覆盖层的两侧施加高压电。
The final inspection of the coating, before the pipe is put into trench, being carried out by a holiday detector which applies a high voltage current across the coating.
在管子放入管沟前，利用覆盖层检查仪对管道覆盖层进行最后的检查，它在覆盖层的两侧施加高压电。
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