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我英语比较一般,关于IEC60335-2-2 3.19节的全开全闭功率有点无法理解啊,
# e$ [% Q7 v2 X- }5 D$ D- GPf is the power input in watts, after 3 min of operation with the air inlet unobstructed. Any
) W9 X8 n& a: }2 [! F) Mdevice that ensures a flow of air to cool the motor in the event of a blockage of the main1 s4 w( P. ]- p7 J. O. N
air inlet is allowed to operate;
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0 u) I, r5 B! T! ]8 y4 y; sPi is the power input in watts, after a further 20 s of operation with the air inlet blocked. Any% l ], b l% }9 [. j
device that is adjustable without the aid of a tool, and which ensures a flow of air to cool
. K6 z4 X# d, { B$ [; ^% z G Tthe motor in the event of a blockage of a main air inlet, is rendered inoperative.
) o7 ~; E1 v" u: ^3 x# o- C0 x关于里面提供冷却风的装置是否允许打开,Pf时说吸口闭合时该装置允许打开,Pi时说吸口闭合时不允许打开。
& E+ [' X0 p! c3 v疑问1:测风口全开时的功率为什么还有吸口闭合的状态?
. P+ C$ R+ Q5 f* j. t% B疑问2:Pf和Pi时提到的这两个冷却装置是否是同一个?
/ Q. Y# `4 E' v4 }; [6 I+ A看GB4706.7时更加不知所云啊 |
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