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The values of the temperature rise in Table 3 of IEC 60065, second and third column, are
1 u0 P7 L A8 o7 [6 `# V1 tbased on a maximum ambient temperature of 35 °C. Because the test will be made with the: ] i* R) g; R, U3 P& l4 N( [3 ?0 h
case temperature at tC, the relevant ambient temperature shall be measured and the values in
$ z! z8 g- X( X% f% W! S( u5 oTable 3 changed respectively. If these temperature rises are higher than those allowed by the
; b; d: s' L) {/ k: C9 Oclass of the relevant insulating material, the nature of the material is the governing factor. The
( o8 B) ~+ l6 p5 u3 l) spermissible temperature rises are based on the recommendations in IEC 60085. The
# ~ n8 ?( f* {! X7 d& o( @" }materials quoted in Table 3 of IEC 60065 are shown only as examples. If materials other than
! X+ w0 t8 N7 N9 t6 ~' h% nthose listed in IEC 60085 are used, the maximum temperatures shall not exceed those which
( M" \, t8 E' _2 v% |have proved to be satisfactory.) i9 L$ z1 z2 H8 a+ I8 }
# x# j2 E! d* \# W/ k c, I; i' G6 f$ ], f2 [6 X$ G
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 ,
1 D+ v( g1 p1 i/ `7 ^
( ]6 y& r. N5 x1 R v4 p |
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