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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,, z6 C% X& V2 d& Y% I2 v
Pf is the power input in watts, after 3 min of operation with the air inlet unobstructed. Any
* _: y5 a& N/ G, S7 I; b1 Adevice that ensures a flow of air to cool the motor in the event of a blockage of the main" s% O6 K7 ~+ n
air inlet is allowed to operate;
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5 ~& X) B1 ]" q+ iPi is the power input in watts, after a further 20 s of operation with the air inlet blocked. Any
+ w0 G( I( i, x- J0 r$ {8 |. F* ?7 Hdevice that is adjustable without the aid of a tool, and which ensures a flow of air to cool! h7 D* H% s/ j4 ]0 G
the motor in the event of a blockage of a main air inlet, is rendered inoperative.& n/ ~2 h. F/ K5 q5 e% {3 z
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。
& H* u$ q3 i r! g# s疑问1:测风口全开时的功率为什么还有吸口闭合的状态?5 D# l4 C/ R: J# u5 Q3 _% H
疑问2:Pf和Pi时提到的这两个冷却装置是否是同一个?" o7 a3 F/ C/ j: B& I- J
看GB4706.7时更加不知所云啊 |
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