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本帖最后由 passagere 于 2016-8-2 13:25 编辑
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哦,输入和输出也是相对的。根据标准里来看,接专用的适配器作为电源的低电压灯具的输入线须为hard usage的线缆,最小24 AWG。我之前理解的是按电源来理解,在此灯具中,需要hard usage的软线作为电源输入线。所以,如果这软线是电源上固定带有的,那么要符合此要求。( O$ p( S. ]9 H9 e, x
8 P% ~/ M6 h+ a. M$ E4 p t见这句话:
( p5 L' r' ?* J44.13 A luminaire rated in accordance with 11.4.1 shall be marked “For supply connection, use only an; Z' x1 v% v1 B! [
isolating low voltage power supply with ungrounded output, evaluated for swimming pool use.” This" k# f" [. u# { @ c i+ d
marking shall be visible during installation; a cord tag is permitted.
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: p9 J3 a8 p' F看见电源不附在灯具上出货,所以低压灯具的输入线就是连接到电源的DC端的线。. n4 k+ X4 u0 x9 v! b
8 C9 a. L& V1 x! D另,flexible cord的规格可见NEC table 400.4,表的右侧可以看到not hard, hard and extra hard的分类。
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