23.3 Electronic cord switches and electronic independently mounted switches shall, without
2 p4 p8 x1 K. gendangering their surroundings, withstand the short circuits they may be subjected to.
5 Y, q4 T- e# i7 A8 ^Compliance is checked by the following test.
3 `1 x6 b. ^. pThe switch is tested in a substantially non-inductive circuit in series with a load impedance and1 V) G+ Y+ G: A; a5 Y
a device for limiting the let-through I2t.- R+ S3 Z" t- E
The prospective short circuit of the supply shall be 1 500 A r.m.s. at a voltage equal to the
6 K% p9 D3 g1 X! N! B3 t8 }rated voltage of the switch under test.. ]8 y8 l: L1 z( I, X: h$ A
The prospective let-through I2t value shall be 15 000 A2s.+ r+ w o! m8 I' ~
+ u: J+ v) a k! A8 o4 q# t问题1:电子开关的短路试验如何做?
! X# u5 b( x- P6 x2 {问题2:这些参数如何实现?
5 o, e! j7 c+ S6 M2 S2 ^# o( v+ x K& Y% K
NOTE 7 Attention is drawn to thefact that solenoid operated pneumatic means may result in an unintentional 7 p' N; d5 V% ^0 p9 T; ]; [
synchronization. 问题3:这一句是什么意思? - `! `; o; t5 \4 ^2 u
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