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The values of the temperature rise in Table 3 of IEC 60065, second and third column, are& f S# p" u1 v3 f5 `' Y2 e9 s
based on a maximum ambient temperature of 35 °C. Because the test will be made with the( J6 _: B% F4 Z2 @+ R' C
case temperature at tC, the relevant ambient temperature shall be measured and the values in
* {; Q1 I8 h2 U3 L1 T5 rTable 3 changed respectively. If these temperature rises are higher than those allowed by the
( q2 ~& j2 ?4 O7 d9 Aclass of the relevant insulating material, the nature of the material is the governing factor. The
1 f8 Q% A" C K" v- N. ~2 Rpermissible temperature rises are based on the recommendations in IEC 60085. The
# X/ E. V9 o5 D0 N9 Gmaterials quoted in Table 3 of IEC 60065 are shown only as examples. If materials other than$ R7 A% P. j; l6 k* v
those listed in IEC 60085 are used, the maximum temperatures shall not exceed those which& K' X8 P6 I3 N( q1 ?
have proved to be satisfactory.$ _) X4 R7 A! m1 u3 I0 w
9 z9 O, r* t {0 I
* J4 J7 x0 e7 ?9 Q' O6 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 ,9 p0 Z) T" `0 m" }. X" ~! S
* Q- P' J2 t6 U6 A/ h- d |
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