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% {/ v( r. _! b做了几年美标,这个问题貌似我能回复 。 ) O" \ t0 Z. H g4 e- G
1598标准也是没有说明class2的线可以裸露在建筑内部哦,倒是8750这个标准有条款7.4.1.2,但这个线也是有限制的。这条款ITS那边是接受的;我问过UL,但是没有收到他们的确认回复邮件。' g0 \0 o' @+ u/ ~/ f- H2 v& ]
7.4.1.2:Power limited circuit wiring that is intended to be routed within a building structure shall be of a
9 x0 K- M6 e; R7 u# ^/ q+ @) {; v4 Ytype suitable for application (e.g. CL2, CL2P, CL3, CL3P, CL3R, CM, CMP, CMR, or PLTC) and in
7 W' g. h }, P1 X2 |accordance with Article 725 of the National Electrical Code (NEC), ANSI/NFPA 70 |
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