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哇!機會難得!請教開孔的問題
2 _/ G- |! W3 x/ ?; k! 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:$ Q8 G4 s7 j; N, E# a
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.7 m! g- }9 {# K. e
如何判定頂部開是否滿足 5angle(UL60950 Figure 4E)呢?& T8 ]+ C4 B3 z3 ~4 @1 H
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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