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引用第6楼依然于2011-09-23 14:16发表的 :
% z3 z1 y/ {) H+ C/ A1 x按照UL8750条款,lens可以使用玻璃的。 ! c+ w$ Z4 w8 x) L
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:
/ V8 Q6 g# |' V8 t) H- q$ ]8 sa) Glass, or
) M; w( `: e" N6 l* Ob) A polymeric material that complies with the dielectric voltage withstand test of 8.4 when a
1 R5 X: C; R! c& ^; ?500-V potential is applied between the electrical connections to the LED and the lens surface.
8 d/ g0 a4 Z R....... 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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