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在不同 volume 之用途, UL 没有特別界定清楚, 但可以举几个例子作参考:
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; s* g% ?3 c* ~; v8 a: t: _例 1:8 `* B8 w. |6 ~: O' J
Volume 1: Power tools (Listed)
1 q4 }" `( B* q% y- Q! vVolume 2: Recognized components for power tools4 y+ _+ T+ ]/ n5 |- s- b. h- t8 c
2 @! ?" X5 X* Y例 2:1 l/ H& Z' [% ?- B& m' Q
Volume 1: Air purifier (Listed)3 P' o5 G. t3 \- G" E
Volume 2: Unlisted components for air purifier
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例 3:% n0 k J1 x. }0 Y
Volume 1: Switches for current carrying (Recognized components)
6 Z, m& r* G; m( x$ |5 `Volume 2: Switches for signal reversing (Recognized components)6 R) _, W9 |8 J4 b
, P3 K1 S- v7 u. Q* y例 4:
: j0 p& o$ T6 q9 jVolume 1: Switches (Recognized components)
+ x" m, M j# p' G5 xVolume 2: Switches (Recognized components) 部份 volume 1 型号, 不是全部。
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