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标准原文:
0 k( u4 `0 k8 Q* l" f3 H8.2.7 Luminaires (other than those mentioned below) incorporating a capacitor of capacitance4 n5 m2 }# \; v* {* c
exceeding 0,5 μF shall be provided with a discharge device so that the voltage across the
; b* u& q- _( bcapacitor 1 min after disconnection of the luminaire from the source of supply at rated voltage
. U" S* W, o0 c1 ^does not exceed 50 V.9 L2 O9 G0 [+ x& t/ ?& g
Portable luminaires designed to be connected to the supply by means of a plug, track adaptor: }7 O: q! W/ L
connected luminaires, or luminaires with supply connector with contacts accessible with the& c) {* s8 C- X4 x
standard test finger and incorporating a capacitor of capacitance exceeding 0,1 μF (or 0,25 μF0 E- _5 y( n9 c. t0 N- e# g
for luminaires with a rated voltage less than 150 V) shall be provided with a discharge device8 H: H6 K* [. j2 X4 J N
so that 1 s after disconnection, the voltage between the pins of the plug or adaptor/connector+ D& a ^. K8 V; J. _7 J6 ]( H8 w
contacts does not exceed 34 V.7 g: |6 K& J) \( p
Other luminaires connected to the supply by means of a plug and incorporating a capacitor! l% T: M6 @+ Q$ K* ~
exceeding 0,1 μF (or 0,25 μF for luminaires of rated voltage less than 150 V) and track
! B. f; i, M# oadaptors mounted in luminaires shall discharge so that after 5 s, the voltage between the pins' e$ T0 K6 J1 w. N( Y3 i: y% w! M
of the plug does not exceed 60 V r.m.s.
$ f' }/ ^6 G' YNOTE The discharge device (for all types of luminaire) may be incorporated on or within the capacitor or mounted separately within the luminaire.
+ h: M* r% `1 [* X& B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?: O9 x3 H- j) p
2、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?; h @- v- _) O2 _* F6 H/ c
3、限值50V,34V 是r.m.s, 还是peak?0 M i/ q7 C8 c# [% @5 N
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?; v8 _% x7 @: q" I' {; 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?$ J* T o" A( _5 I% i0 p2 [$ W8 S# y4 |
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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