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5.8.4 For appliances marked with a rated voltage range and rated power input
+ V1 X3 G! [% r3 Q* s: M9 xcorresponding to the mean of the rated voltage range, when it is specified that the power: r: x0 y1 V6 a7 b) o& g$ d, {1 s
input is equal to rated power input multiplied by a factor, the appliance is operated at1 f( V: x5 H; z2 C. { q) O
– the calculated power input corresponding to the upper limit of the rated voltage range9 h6 w* }" ?- u/ H$ y+ h
multiplied by this factor, if greater than 1;# @2 I* y: K8 R7 ^, C
– the calculated power input corresponding to the lower limit of the rated voltage range
: c. M |- l9 Y: ]; Wmultiplied by this factor, if smaller than 1.When a factor is not specified, the power input corresponds to the power input at the most! b9 `6 K- c4 l3 `0 y
unfavourable voltage within the rated voltage range., ^2 A. M; B, c2 U6 L
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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。/ M. O! |3 p( P! G1 X0 w2 W% Z5 J
做19.3时,所乘系数大于1,所以应按1.24×(240 / 230 )^2×2400W来测试。
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这种做法是正确的。: E- D8 C1 N; R' n! h$ m
需要乘系数的原因是, 2400W 对应的电压是230V。 |
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