The XLPE cable insulation fault on line monitoring system designed in this paper abides by modularization, hierarchical, having great scalability and small current measure reference function.
本文所设计的XLPE电缆绝缘故障在线测量系统，遵循模块化、层次化，具有良好的可扩展性和小电流检测的参考作用。
To measure voltages, the current taken by the instrument must be small.
要量度电压，仪表通过的电流必须小些。
If the instrument is being used to measure a small voltage drop resulting from the flow of current through a resistor, the following procedure will result in a proper zero.
如果用仪器来测量电流流过一个电阻器所产生的小电压降，那么采用下述的方法可以得到合适的零点。
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