punk 发表于 2014-12-28 20:30

请教61347

Where an intermediate metal part (for example, the magnetic core of the HFtransformer) not connected to the enclosure is located between the input and output windingsof the HF transformer, the insulation between the input and output windings via theintermediate metal part shall consist of double or reinforced insulation, and, for class II controlgear, the insulation between the input windings and the enclosure and between the outputwindings and the enclosure via the intermediate metal part of the HF transformer shall consistof double or reinforced insulation.An intermediate part which is separated from one of the windings by double or reinforcedinsulation is considered as being connected to the other winding of the HF transformer. 请教以上两段话在实际运用中怎么理解(对应的19510.14中文版也读过,但还是没搞清楚)最好能举个例子讲讲。

Nezof 发表于 2014-12-29 10:59

简单讲就是1+1=2和0+2=2,核心就是你要保证初次级之间的加强绝缘

Kevin_L 发表于 2014-12-29 17:11

楼上的正解!!!
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