IEC60950或者GB4943里對此有詳細的說明

SELV:安全特低電壓電路(safety extra-low voltage circuit)其定義為具有適當保護設計之次級電路,即在任意兩個可能碰觸組件之間或人體可能碰觸到任意組件和產(chǎn)品的接地保護端子之間電壓不會超過 42.4Vacpeak或 60Vdc的次級電路;
ELV:特低電壓電路(extra-low voltage circuit)其定義為在導體與導體之間或?qū)w對地之間的交流電壓峰值不超過 42.4Vac或直流電壓不超過 60Vdc的次級電路;

30VDC吧 還是60VDC?

3樓講的沒錯,60Vdc

請問,CE,UL,VDE,PSE,這幾種安規(guī)認證中,哪種是要求嚴厲的.
他們之間的主要分別在哪.
請指點:

那種都嚴

也想知道其中的區(qū)別

不過真正能講清楚的畢竟不多,能把自己的領域里的東東搞透徹就很了不起啦

EN60335的定義如下:
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.
導體之間或?qū)w與地之間電壓(RMS)不超過50V的電壓.

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.
導體之間或?qū)w與地之間電壓(RMS)不超過42V的電壓,空載電壓(RMS)不超過50V,且該電壓要通過安全隔離變壓器獲得的.也就是說高壓和安全特低電壓之間要滿足雙重絕緣或加強絕緣的要求.安全特低電壓也就是我們通常所說的"SELV".


本篇文章來源于 工業(yè)技術網(wǎng) 原文鏈接:http://www.nowtech.cn/news/view.asp?id=1872