III类灯串的导线的规格型号和线径要求？

mxoghwcsxo

III类灯串的导线的规格型号要求，感觉标准说的不够清楚，例如一个户外用，有串联也有并联的III类灯串应该用什么规格的导线？是H03VVH2-F，还是H03RN-F，或者H05RN-F？

另外关于导线的线径，可以小于0.4mm2,但不能小于0.2mm2,是这样吗？
请熟悉这类产品标准的朋友指教，谢谢！

syyhiw

我司做的灯串，低压的不能小以0.2MM2,但如整套灯串功率大于40W，则电线为0.4MM2~0.5MM2.

mxoghwcsxo

今天终于找到答案了，功率小于50W的III类灯串的导线绝缘只要满足5.3.1 of 60598-1的要求就可以了，下面的内容供大家参考：
20.10.1 Subclause 5.2.2 of section 5 of IEC 60598-1 does not apply. Internal and external
cables of lighting chains shall not be lighter than the following:
– for Class II ordinary lighting chains and ordinary sealed
chains
60227 IEC 43
60227 IEC 52*
– for Class II chains other than ordinary, using seriesconnected
lampholders
60245 IEC 57*
– for Class II chains other than ordinary, using parallelconnected
lampholders and the connection cable for sealed
lighting chains other than ordinary
60245 IEC 57*
– for Class II chains other than ordinary, where the length of
cable between the point of supply and the nearest lampholder
exceeds 3 m – for that part of the cable
60245 IEC 66
– for Class III chains and parts of chains supplied by SELV and
with a maximum rated wattage exceeding 50 W
60227 IEC 42*
– for Class III chains and parts of chains supplied by SELV
and with a maximum rated wattage not exceeding 50 W
Insulation according
to 5.3.1 of 60598-1
* The cable may consist of a single core cable provided with a two-layer insulation
corresponding to the specified standard sheet.