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+ R2 @3 m( p$ s: q. m A( A做了几年美标,这个问题貌似我能回复 。 . p* ~% U D, l C8 |; |, x: `
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。# W+ w) p% x6 b" f# X! Z
7.4.1.2:Power limited circuit wiring that is intended to be routed within a building structure shall be of a
5 r% Q. ~' {: [. `# k3 T* mtype suitable for application (e.g. CL2, CL2P, CL3, CL3P, CL3R, CM, CMP, CMR, or PLTC) and in
, s; `/ ]/ @4 {' l5 h3 Waccordance with Article 725 of the National Electrical Code (NEC), ANSI/NFPA 70 |
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