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5.8.4 For appliances marked with a rated voltage range and rated power input1 g4 h; [ P C) l% p- V g* S( D
corresponding to the mean of the rated voltage range, when it is specified that the power
# [( R! `9 p9 c+ E5 [input is equal to rated power input multiplied by a factor, the appliance is operated at: n/ R& I. r0 u" Z4 U. Z C7 ~
– the calculated power input corresponding to the upper limit of the rated voltage range/ N* Z9 X& [/ I4 [+ o' d
multiplied by this factor, if greater than 1;
( B1 I7 M8 U8 o– the calculated power input corresponding to the lower limit of the rated voltage range5 f; W9 Z& `4 S0 o3 m+ p6 O3 G K6 T
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
9 V2 J8 S% u5 X2 |. X* hunfavourable voltage within the rated voltage range.
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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。
' B! b2 Y/ a: D- }4 q做19.3时,所乘系数大于1,所以应按1.24×(240 / 230 )^2×2400W来测试。) t; j, P: d# g
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这种做法是正确的。& u+ y3 ~* a( k7 b2 _
需要乘系数的原因是, 2400W 对应的电压是230V。 |
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