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哇!機會難得!請教開孔的問題
. t* U' D- c6 l- P* d% Z5 c! f/ f如何判定頂or側部開孔滿足5angle(UL60950 Figure 4E)?6 p" d7 A' o0 ^+ g! v# x7 u$ y
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UL60950-1 4.6.1 提到:$ n+ e- F5 _# w2 f. c3 Q' Y6 q
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.
" S- [# b3 _+ \, f+ w1 y如何判定頂部開是否滿足 5angle(UL60950 Figure 4E)呢?% [( t4 R7 Y2 F. n6 V
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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