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The values of the temperature rise in Table 3 of IEC 60065, second and third column, are
! z& f8 w* D" @6 c/ ?5 kbased on a maximum ambient temperature of 35 °C. Because the test will be made with the8 I! |3 F; X- }7 h% `! i
case temperature at tC, the relevant ambient temperature shall be measured and the values in7 D, G8 ]7 r: j5 F+ h2 x- z3 E e
Table 3 changed respectively. If these temperature rises are higher than those allowed by the8 O# H3 H% _) o# \
class of the relevant insulating material, the nature of the material is the governing factor. The/ @7 V& E. D; A: s) t
permissible temperature rises are based on the recommendations in IEC 60085. The
1 L$ G' ]) k g4 [. r* smaterials quoted in Table 3 of IEC 60065 are shown only as examples. If materials other than) a9 ~/ v. h; |+ L
those listed in IEC 60085 are used, the maximum temperatures shall not exceed those which
}/ D) ]) `; l z; x! T7 F# P9 zhave proved to be satisfactory.& f9 f: d+ V6 M
7 X. P0 ^, h2 b6 k7 k
3 i: O0 Z& L3 F1 x/ D. p4 }+ W
下面这段话说 温升是要在Tc 下,如果驱动在整个灯具中做随机,Tc 怎么确定,看哪里的 ,' f$ C! k6 Z* _: L6 f4 e
1 |$ S! r% }/ G; T; q* I+ W p
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