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标准原文:3 V, c: U/ R, b' _2 a4 R, A* e8 R
8.2.7 Luminaires (other than those mentioned below) incorporating a capacitor of capacitance
8 b8 b( w( @3 A" Kexceeding 0,5 μF shall be provided with a discharge device so that the voltage across the
* M% @3 ?' T8 A. h( z8 [/ ?capacitor 1 min after disconnection of the luminaire from the source of supply at rated voltage
z2 P) a2 b6 h- C( {% _does not exceed 50 V.5 n4 I9 w/ P0 Z O( g) P! ]
Portable luminaires designed to be connected to the supply by means of a plug, track adaptor
4 u1 u/ P( K' }) u3 M* Xconnected luminaires, or luminaires with supply connector with contacts accessible with the
( E7 k* A8 ]4 ]+ Mstandard test finger and incorporating a capacitor of capacitance exceeding 0,1 μF (or 0,25 μF) j0 Q% j- j- w0 M9 Y- f
for luminaires with a rated voltage less than 150 V) shall be provided with a discharge device
6 ^+ v0 S5 ^2 m, o+ { b* z% Rso that 1 s after disconnection, the voltage between the pins of the plug or adaptor/connector
5 U' H, |8 q1 l1 o1 ?* |# [contacts does not exceed 34 V.
4 e3 \7 P7 r0 T: C$ h. J% N1 lOther luminaires connected to the supply by means of a plug and incorporating a capacitor. r. k* }. J5 t; k/ I
exceeding 0,1 μF (or 0,25 μF for luminaires of rated voltage less than 150 V) and track, n1 _$ m4 B! q3 n! M9 R
adaptors mounted in luminaires shall discharge so that after 5 s, the voltage between the pins* s+ L; X/ x3 A% f; h1 x
of the plug does not exceed 60 V r.m.s.( M' J2 K6 }, j$ W1 G- _# B! R
NOTE The discharge device (for all types of luminaire) may be incorporated on or within the capacitor or mounted separately within the luminaire.
3 \( P& x/ s/ ?- C& w0 O( Z' `问题:1、放电装置除了放电电阻外,还有什么?有集放电装置于一体的电容吗?
1 @7 z8 s) g$ }& O( d4 U, i2、仅考虑初级线路跨接在L,N之间的X2电容吗? 还是任何形式的电容?是一个电容容值,还是整个线路的电容值?: }+ \0 y! \5 a& v
3、限值50V,34V 是r.m.s, 还是peak?& F7 r4 g, [9 ?6 r
4、电容放电测试的条件是什么?通入额定电压,额定频率? 还是要电压拉偏至1.1U?& H5 B ?: C8 }
5、“the voltage across the capacitor 1 min after disconnection of the luminaire from the source of supply at rated voltage does not exceed 50 V” 没有插头,直接测试电容两端?6 J0 Z* G+ q% P# T0 F P
不是学电子的,提的问题比较幼稚,各位不要笑话,请帮忙解答。 |
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