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The values of the temperature rise in Table 3 of IEC 60065, second and third column, are
! ?" L; Y) H! mbased on a maximum ambient temperature of 35 °C. Because the test will be made with the
& H' G! f; Z" M6 C& m( @case temperature at tC, the relevant ambient temperature shall be measured and the values in8 ^& j$ J) I2 k* J3 V2 f8 }
Table 3 changed respectively. If these temperature rises are higher than those allowed by the, K3 v+ J" f) G: y% a
class of the relevant insulating material, the nature of the material is the governing factor. The: _( r5 T) _$ a4 h& [3 j% T
permissible temperature rises are based on the recommendations in IEC 60085. The
' `9 e/ }5 a) t* b k/ Hmaterials quoted in Table 3 of IEC 60065 are shown only as examples. If materials other than
: p1 P" d) \/ }( J% Z. N6 q3 A8 Pthose listed in IEC 60085 are used, the maximum temperatures shall not exceed those which( x# A& p; Z% [' k3 {/ H9 f
have proved to be satisfactory.+ [! X' m- T4 Z& D
: X. F D" [ E- e: {# t% E
( S* |" E) {# ?, ^ K0 m- M# X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 ,
5 t+ w8 \6 z$ j; j2 C* K! n# _ C8 H; K( a
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