标题: UL1012 [打印本页] 作者: daocaoren 时间: 2013-3-18 17:35 标题: UL1012 6.18 POWER UNIT, FIXED – A power unit that is intended to be permanently connected electrically. : c) q+ W4 l. A5 Z2 R; ]0 V! ]$ i& A( J1 }' L( v
6.21 POWER UNIT, STATIONARY – A cord and plug connected power unit that is intended to be# X* D& X6 _& s4 G; {- j
fastened in place or located in a dedicated space. , E2 A k0 z; H8 w0 ?0 Y% X. v ' m; ^( [4 G5 Z2 V2 E: ], N8 X以上2个电源有什么区别？fixed和stationary不都是固定的吗5 A- r. L) Z' O' G$ ^1 Z" ^ T5 p 作者: jsspace 时间: 2013-3-19 08:09
没有做过UL153，仅凭猜测：. N, I7 L3 Y$ W, A& Q! x
定义一：强调的是永久的和电源连接，也就是说用的是固定布线。5 K$ ?# p! A/ Q5 W0 k
定义二：用的是power cord and plug( B9 \+ i6 |3 K9 c
所以这两个的区别在于电源的连接方式。