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The values of the temperature rise in Table 3 of IEC 60065, second and third column, are% t9 | i+ E9 u9 @
based on a maximum ambient temperature of 35 °C. Because the test will be made with the
# F$ `2 m. C2 y+ l7 ?$ b$ vcase temperature at tC, the relevant ambient temperature shall be measured and the values in# g$ X7 s4 h3 }! |4 [, k
Table 3 changed respectively. If these temperature rises are higher than those allowed by the
. T9 A$ H7 g, q6 {& wclass of the relevant insulating material, the nature of the material is the governing factor. The
: F: u7 T. ?7 ~- I2 ]permissible temperature rises are based on the recommendations in IEC 60085. The. A% K- v, ~3 A6 G2 e2 @0 b3 g
materials quoted in Table 3 of IEC 60065 are shown only as examples. If materials other than/ {) B! w; V1 f
those listed in IEC 60085 are used, the maximum temperatures shall not exceed those which0 r6 M2 a! D) B+ {: S4 v+ O9 b
have proved to be satisfactory. J* }, g: `! N# S' Y9 J
7 v3 k9 i0 e2 R# I( |1 D5 ^0 j3 k/ w/ [! Q# T- C
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 ,
# \4 f, E& Q J [& C. P& j) F+ v; f
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