lanch：
EN60335的定義如下:extra-lowvoltagevoltagesuppliedfromasourcewithintheappliancethatdoesnotexceed50Vbetweenconductorsandbetweenconductorsandearthwhentheapplianceissuppliedatratedvoltage.導(dǎo)體之間或?qū)w與地之間電壓(RMS)不超過(guò)50V的電壓.safetyextra-lowvoltagevoltagenotexceeding42Vbetweenconductorsandbetweenconductorsandearth,thenoloadvoltagenotexceeding50VWhensafetyextra-lowvoltageisobtainedfromthesupplymains,itistobethroughasafetyisolatingtransformeroraconvertorwithseparatewindings,theinsulationofwhichcomplieswithdoubleinsulationorreinforcedinsulationrequirements.導(dǎo)體之間或?qū)w與地之間電壓(RMS)不超過(guò)42V的電壓,空載電壓(RMS)不超過(guò)50V,且該電壓要通過(guò)安全隔離變壓器獲得的.也就是說(shuō)高壓和安全特低電壓之間要滿足雙重絕緣或加強(qiáng)絕緣的要求.安全特低電壓也就是我們通常所說(shuō)的"SELV".本篇文章來(lái)源于工業(yè)技術(shù)網(wǎng)原文鏈接:http://www.nowtech.cn/news/view.asp?id=1872