由于IR测量往往涉及到多芯导线，所以通常需要一套切换系统来将皮安计和源切换至测试电路中的所有导线。
Ir measurements often involve multiple conductors, so a switching system is often required to switch the picoammeter and the source to all the conductors in the test circuit.
另外，使用的多芯导线应力计算程序，操作简单，为相关工作人员提供了一个快速而可靠的导线安全评定方法。
Besides, the Program of Wire Stress Calculation that is operated easily can facilitate the users to make safe assessment more accurately and effectively.
测量绝缘电阻的例子包括测量印制板上走线之间的通路，或多芯电缆中导线之间的电阻。
Examples of insulation resistance measurements include measuring the path be tween traces on a printed circuit board or the resistance between conductors in a multi-conductor cable.
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