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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。7 u* C. W& v$ j: \7 q+ U
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见这句话:
0 g% A; Q1 s* k. W9 t44.13 A luminaire rated in accordance with 11.4.1 shall be marked “For supply connection, use only an
: s* G1 C! x7 ]isolating low voltage power supply with ungrounded output, evaluated for swimming pool use.” This
8 D( [" E5 @& z1 D0 N1 ?marking shall be visible during installation; a cord tag is permitted.
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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。0 K) w8 T- O! z0 g/ N
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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。, q% r* r; W+ W: u% f, l# t
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