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5.8.4 For appliances marked with a rated voltage range and rated power input4 q$ Q+ _8 L5 C/ k6 @
corresponding to the mean of the rated voltage range, when it is specified that the power
0 P9 k& v. h& }1 L; t- W: N! {input is equal to rated power input multiplied by a factor, the appliance is operated at
4 d; e( }/ |: @+ Z y% r– the calculated power input corresponding to the upper limit of the rated voltage range- i, F: ?# Z ^6 R" b+ {9 f
multiplied by this factor, if greater than 1;* [6 X8 z8 H1 R( G% j0 Z
– the calculated power input corresponding to the lower limit of the rated voltage range) ^! @5 O* d0 L3 ]( N$ 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: d- R: S7 I/ ?% v; ?. \& y- R
unfavourable voltage within the rated voltage range.7 i, C w! n' T% Y3 O
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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。
: X. f$ x6 A; j: q1 x- Q3 k做19.3时,所乘系数大于1,所以应按1.24×(240 / 230 )^2×2400W来测试。7 e( x- T/ U+ p, ?/ B
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这种做法是正确的。 f, v3 m, C. {! S
需要乘系数的原因是, 2400W 对应的电压是230V。 |
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