|
|
5.8.4 For appliances marked with a rated voltage range and rated power input
& r6 G( i' ^, B8 K! `! S! k$ v5 Tcorresponding to the mean of the rated voltage range, when it is specified that the power
( n! {% e+ c9 \input is equal to rated power input multiplied by a factor, the appliance is operated at
- _& q' L& f: n1 P" \+ A' p- {4 M– the calculated power input corresponding to the upper limit of the rated voltage range
H; c% [. y- O9 J7 Zmultiplied by this factor, if greater than 1;
- e: U4 w4 ]" I1 c– the calculated power input corresponding to the lower limit of the rated voltage range' b/ \0 K0 `+ t) y
multiplied by this factor, if smaller than 1.When a factor is not specified, the power input corresponds to the power input at the most2 s, C8 V! b8 @+ x: ~
unfavourable voltage within the rated voltage range.
4 w1 s q) D# @) k4 V8 e. D+ V2 Y7 k! }6 a- F4 f8 l! v7 A
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。
# V! h2 q. _% G! j0 p; j( M做19.3时，所乘系数大于1，所以应按1.24×(240 / 230 )^2×2400W来测试。. X' A! d5 z% g8 {
0 a" Q( l& o* n: q, D/ X8 a
这种做法是正确的。0 N9 C/ W: G6 y
需要乘系数的原因是， 2400W 对应的电压是230V。 |
|
/1 
|关于安规|小黑屋|安规QQ群|Archiver|手机版|安规网
( 粤ICP13023453-10 )
窥视卡
雷达卡
楼主
显身卡
发表于 2008-3-7 11:26
发表于 2008-3-7 11:59
发表于 2008-3-22 13:29
