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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 for3 l& p# n( m5 R* W1 N9 ?
70,000 hours to correspond with the maximum expected lamp life. For fluorescent lamps, 5,000 to 10,000 hours life is typical. See
* b0 y: k, Q1 X) @4 G* eUL 746C clauses on RTI for discussion of this technique.
/ L2 [3 i; T7 ^" P" i4 p/ i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。- z! Q* ^) l# ], m F; w% {
表中只写了a.b.但厂家未提供外壳的温度参数。
: h( O& ?* T9 x! iB看不太懂。求解答!
: ~* v4 U1 F& _6 N2 ^0 b7 ?
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