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哇!機會難得!請教開孔的問題4 W4 {* S( z( a6 E, y0 _% n
如何判定頂or側部開孔滿足5angle(UL60950 Figure 4E)?9 y, P: P" W! x8 c C
* L/ @8 Z' l! j* xUL60950-1 4.6.1 提到:" o; D& v9 t) N; r0 d3 E4 n9 Y5 P
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.
1 f5 ?& e* W! @# e如何判定頂部開是否滿足 5angle(UL60950 Figure 4E)呢?
$ e. N, Y* [. ]8 R3 R8 b+ N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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