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哇!機會難得!請教開孔的問題: e! |8 p6 \, _; L( B _
如何判定頂or側部開孔滿足5angle(UL60950 Figure 4E)?! k( d2 O+ n- F: h% l
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UL60950-1 4.6.1 提到:
& O- I2 M* c1 YWhere 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.! y2 |/ ^1 Q' O* s" e; ]# Z5 z! j& e
如何判定頂部開是否滿足 5angle(UL60950 Figure 4E)呢?$ D8 c9 K+ `/ ^* w c3 X4 t T
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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