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引用第6楼依然于2011-09-23 14:16发表的 :
3 M6 r: q1 c" n* K! V按照UL8750条款,lens可以使用玻璃的。 " r: r7 s+ W3 \8 J1 K
6.3.4 The lens (optic) of an LED package connected in a circuit that represents a risk of electric shock need not be provided within an enclosure if made of:
& h* \. X2 ?9 `a) Glass, or) _" W# u: |2 K9 s- | \" q, _
b) A polymeric material that complies with the dielectric voltage withstand test of 8.4 when a! v7 W9 [! C& m# R/ K& R X, B' M, J
500-V potential is applied between the electrical connections to the LED and the lens surface.& R: d: D# c& ]' b* V) o
....... 正解...所以跌落测试是必须的.要不就做CLASS2,要不就用强化玻璃... |
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