23.3 Electronic cord switches and electronic independently mounted switches shall, without
$ B. _7 B+ @: q) _ _7 O# Lendangering their surroundings, withstand the short circuits they may be subjected to.' Y E/ g9 C' j8 x5 A K
Compliance is checked by the following test.
0 t: y1 W, r9 dThe switch is tested in a substantially non-inductive circuit in series with a load impedance and2 C5 a. w6 a2 Z! W9 l
a device for limiting the let-through I2t.' w# V- t/ P) y* ~2 ?) v; q" `
The prospective short circuit of the supply shall be 1 500 A r.m.s. at a voltage equal to the
3 ^( J! b( x; t, Z( Urated voltage of the switch under test.3 J: t% P3 G" s! p* O9 G) I
The prospective let-through I2t value shall be 15 000 A2s., ~% }+ ^+ b4 M9 q6 B6 J8 F7 C7 j
V2 h: b; E6 [问题1：电子开关的短路试验如何做？0 p' o" v- J- N# _
问题2：这些参数如何实现？
0 F# ~9 J k# P) Y {8 D* G- X1 H$ Y4 C7 Q/ U3 K G/ k$ _0 ]
NOTE 7 Attention is drawn to thefact that solenoid operated pneumatic means may result in an unintentional
& }6 W" D* A" j3 j8 R) dsynchronization. 问题3：这一句是什么意思？
5 D% S6 d) M8 z y! S | 
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