The research of the transformer low insulation resistance problems 变压器绝缘电阻降低问题的试验研究
2.
In applications where high impedances and very low currents are involved a guard ring may be used to minimize the effects of low insulation resistance 保护环用在那些高阻抗或电流非常微弱的电路中，用于减轻因绝缘电阻不够高而产生的（漏电）问题。
