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.

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。

youdao

An externalized conductor occurs when the cable, or conductor, from inside the lead wears through the outer silicone insulation around the lead and appears outside the insulation body.

FORBES: St Jude Withdraws Older LV CRT Leads From Market

Contact between the live conductor and a cable stay supporting the pole caused arcing that ignited vegetation, the report said.

BBC: Black Saturday bushfire case opens in Australia