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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,6 v1 {% p9 ~% N8 \# ]$ O+ ^7 U
Pf is the power input in watts, after 3 min of operation with the air inlet unobstructed. Any/ X8 _0 Y8 c" N- `+ C) ]1 _# N4 |: M
device that ensures a flow of air to cool the motor in the event of a blockage of the main5 M1 B2 w% V/ B: A: P& F0 C, ^
air inlet is allowed to operate;5 K4 N5 C; c& b
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Pi is the power input in watts, after a further 20 s of operation with the air inlet blocked. Any
1 D5 o9 W" e/ r$ ydevice that is adjustable without the aid of a tool, and which ensures a flow of air to cool
2 F1 L5 {1 K( P, Tthe motor in the event of a blockage of a main air inlet, is rendered inoperative.
I" N" M% [0 v9 b* e$ X, H4 E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。
6 a/ U& |8 A7 g- T \疑问1:测风口全开时的功率为什么还有吸口闭合的状态?3 X6 T9 c! i! W
疑问2:Pf和Pi时提到的这两个冷却装置是否是同一个?4 @' ?5 C8 F& ]* K$ @
看GB4706.7时更加不知所云啊 |
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