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b For a self-ballasted lamp, the temperature limit of a polymeric material may be increased above the established RTI value for: M6 {+ Q6 X/ H3 D- t
70,000 hours to correspond with the maximum expected lamp life. For fluorescent lamps, 5,000 to 10,000 hours life is typical. See
0 e A, w* l- U) [- G6 i$ VUL 746C clauses on RTI for discussion of this technique.8 a4 U5 n+ |( y# y
有一个LED灯,测温升,然后不知灯头的绝缘体那里的温升应该是多少。2 D. C/ b- a1 R+ u
表中只写了a.b.但厂家未提供外壳的温度参数。7 ] {; M3 S5 O; G! u& H, G1 {
B看不太懂。求解答!
1 @& w9 d+ C# ]' c. o2 T$ J! p8 W9 y
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