高手讲解一下安全低电压与低电压的区别

IEC60950或者GB4943里对此有详细的说明

SELV:安全特低电压电路(safety extra-low voltage circuit)其定义为具有适当保护设计之次级电路,即在任意两个可能碰触组件之间或人体可能碰触到任意组件和产品的接地保护端子之间电压不会超过 42.4Vacpeak或 60Vdc的次级电路;
ELV:特低电压电路(extra-low voltage circuit)其定义为在导体与导体之间或导体对地之间的交流电压峰值不超过 42.4Vac或直流电压不超过 60Vdc的次级电路;

30VDC吧 还是60VDC?

3樓講的沒錯,60Vdc

请问,CE,UL,VDE,PSE,这几种安规认证中,哪种是要求严厉的.
他们之间的主要分别在哪.
请指点:

那种都严

也想知道其中的区别

不过真正能讲清楚的毕竟不多,能把自己的领域里的东东搞透彻就很了不起啦

EN60335的定义如下:
extra-low voltage
voltage supplied from a source within the appliance that does not exceed 50 V between conductors and between conductors and earth when the appliance is supplied at rated voltage.
导体之间或导体与地之间电压(RMS)不超过50V的电压.

safety extra-low voltage
voltage not exceeding 42 V between conductors and between conductors and earth, the noload voltage not exceeding 50 V When safety extra-low voltage is obtained from the supply mains, it is to be through a safety isolating transformer or a convertor with separate windings, the insulation of which complies with double insulation or reinforced insulation requirements.
导体之间或导体与地之间电压(RMS)不超过42V的电压,空载电压(RMS)不超过50V,且该电压要通过安全隔离变压器获得的.也就是说高压和安全特低电压之间要满足双重绝缘或加强绝缘的要求.安全特低电压也就是我们通常所说的"SELV".


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