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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:% ]3 C E! w+ M6 W, Y7 r; d8 H
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 .! C2 f( {5 ]2 C) @* B5 p% R3 s
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.
1 J. g" A# V1 Y$ i* a; m4 M现在的问题是:用不用H03RN-F的线?线径小于0.4行不行? |
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