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引用第6楼依然于2011-09-23 14:16发表的 :
# k2 ~2 V$ X+ r. W* u9 [按照UL8750条款,lens可以使用玻璃的。 " p7 Q& A; |# W y% P/ k$ J5 ~
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:' ~3 L$ o- i- e6 m) h
a) Glass, or
+ ]2 O: t6 _' c8 Z$ _& xb) A polymeric material that complies with the dielectric voltage withstand test of 8.4 when a5 g6 m O* @! O4 Q
500-V potential is applied between the electrical connections to the LED and the lens surface.
4 {! v! n: O, q0 i; T0 p" V....... 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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