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哇!機會難得!請教開孔的問題
& q. F/ n) a( k; g) J如何判定頂or側部開孔滿足5angle(UL60950 Figure 4E)?
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UL60950-1 4.6.1 提到:1 {6 r0 _( v; _
Where a portion of the side of a FIRE ENCLOSURE falls within the area traced out by the 5 angle in figure 4E, the limitation in 4.6.2 on sizes of openings in bottoms of FIRE ECLOSURES also apply to this portion of the side.
4 I: r: c [3 r5 O* ?# k9 N+ K' E, ^如何判定頂部開是否滿足 5angle(UL60950 Figure 4E)呢?% F: y" P$ d) h2 f+ @
有相關的軟件嗎?還是用目測拉5度的方法。請賜教。 |
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