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哇!機會難得!請教開孔的問題
" u+ ?- n! M5 N# ]! |) o8 l+ k如何判定頂or側部開孔滿足5angle(UL60950 Figure 4E)?
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$ P; F$ X$ u1 J/ l7 |4 v6 ?" lUL60950-1 4.6.1 提到:
( J+ Y$ y! I5 o8 V: m; }/ AWhere 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.
/ C# d2 u! X# B! t# i* G8 \如何判定頂部開是否滿足 5angle(UL60950 Figure 4E)呢?: g' k' h/ W" E+ A7 H( ^$ e
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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