三类户外灯串的用线
各位大虾,小弟有一事请教。如图所示,是一款三类的户外LED灯串,输出为24V,功率小于50W。所采用的内部线是<0.44mm²的非标PVC线,这样的线,是否符合标准的要求?而我查了一下标准,又有如下的问题:标准要求为H03RN-F的型号,而线经的要求可用<0.4mm²如经过证明其电气及机械强度能符合标准的要求的话,且功率小于50W的话。20.10.1 internal and external cables of lighting chains,sealed chains and external cables of sealed chains shall not be lighter than the following:For other lighting chains using series-connected lampholders H03RN-F .
Internal and external cables of class III lighting chains with a maximum rated wattage not exceedin50 W and the internal conductors of sealed chains may have a cross-sectional area of less than 0,4 mm2 provided that the current-carrying capacity and mechanical properties are adequate.
现在的问题是:用不用H03RN-F的线?线径小于0.4行不行? 版主,帮忙顶一顶 0.2mm2的PVC线就可! 哪标准里的这些要求要怎样去解释呢?
20.10.1 internal and external cables of lighting chains,sealed chains and external cables of sealed chains shall not be lighter than the following:For other lighting chains using series-connected lampholders H03RN-F . 标准是这样规定的没错,你若用0.4mm2的也没问题,现在大多数认证公司都接受0.2mm2PVC线的三类灯串认证!! 同意楼上所说,我之前也做过类似的灯串的。 请教一下,0.2mm2PVC的标准出处是哪里? 有标准条款支持吗? 呵呵,找不到该标准条款的,具体你可咨询一下认证公司,据我所接触的那几家知名的认证公司都要求0.2mm2即可! 谢谢了。
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