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5.8.4 For appliances marked with a rated voltage range and rated power input# ^0 b& G7 R# f- ]- C
corresponding to the mean of the rated voltage range, when it is specified that the power
8 ]" E$ t5 A* y0 H7 _; Iinput is equal to rated power input multiplied by a factor, the appliance is operated at
3 U2 y0 f# _( h– the calculated power input corresponding to the upper limit of the rated voltage range
! k# U" N: S& z4 Y) n: t" {multiplied by this factor, if greater than 1;5 f; ^' Y" N+ X! m9 J$ U, z
– the calculated power input corresponding to the lower limit of the rated voltage range5 c: [; W: B( D0 }# l4 a$ v
multiplied by this factor, if smaller than 1.When a factor is not specified, the power input corresponds to the power input at the most, g) b4 ^: N# l
unfavourable voltage within the rated voltage range.3 t1 q2 \ ?% R
n; h: O4 H! i2 q2 t; o& k做19.2时,所乘系数小于1,所以按照0.85×(220 / 230 )^2×2400W来测试是对的。
' q( x- e* m$ f& F3 g: |3 i" n0 r做19.3时,所乘系数大于1,所以应按1.24×(240 / 230 )^2×2400W来测试。
* ?$ P9 J1 ^2 _7 e4 N7 V" J6 f# P# ?3 Y* R4 ~8 G( R& r
这种做法是正确的。6 E1 D, s- \9 j5 I6 f- p! G1 e
需要乘系数的原因是, 2400W 对应的电压是230V。 |
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