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哇!機會難得!請教開孔的問題
1 b' R d9 o8 c. \1 ~' x! I: e" G如何判定頂or側部開孔滿足5angle(UL60950 Figure 4E)?( R. X% t( h0 p+ W# x% M
+ N; ~; m5 [* R. h' P, zUL60950-1 4.6.1 提到:/ @: `& B# U- W
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.3 I7 ]/ R: f' e) w D$ U3 Z0 _5 B, w
如何判定頂部開是否滿足 5angle(UL60950 Figure 4E)呢?1 I0 o+ @2 d0 `$ J+ G1 K
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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