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标准原文:3 b& X) v+ ~$ m* m- h
8.2.7 Luminaires (other than those mentioned below) incorporating a capacitor of capacitance5 R; c9 z5 R, l* {# _4 I' C
exceeding 0,5 μF shall be provided with a discharge device so that the voltage across the
* n) [4 v- m$ Q+ M4 K ]capacitor 1 min after disconnection of the luminaire from the source of supply at rated voltage
1 w2 _& Y/ k, d* O+ F5 cdoes not exceed 50 V.: W* t c9 Q/ r. h1 V3 ?
Portable luminaires designed to be connected to the supply by means of a plug, track adaptor
. E# S6 a" Q3 ~! R6 S4 vconnected luminaires, or luminaires with supply connector with contacts accessible with the2 I! v% ~7 }$ w' X8 r/ F+ l8 \ u
standard test finger and incorporating a capacitor of capacitance exceeding 0,1 μF (or 0,25 μF
L7 H4 X" p9 t2 L$ afor luminaires with a rated voltage less than 150 V) shall be provided with a discharge device
9 j) V; Z3 n: Lso that 1 s after disconnection, the voltage between the pins of the plug or adaptor/connector6 d) e, `$ m( f: `9 S% h/ G# _
contacts does not exceed 34 V.1 h5 ~( @+ l9 N8 k. K
Other luminaires connected to the supply by means of a plug and incorporating a capacitor$ L1 T- k: O& K5 p& E; G
exceeding 0,1 μF (or 0,25 μF for luminaires of rated voltage less than 150 V) and track
- s' {; ?( V/ Q [- Kadaptors mounted in luminaires shall discharge so that after 5 s, the voltage between the pins
. D0 v4 L6 d% |" @of the plug does not exceed 60 V r.m.s.+ i7 [" C) r, A* Y% A# k
NOTE The discharge device (for all types of luminaire) may be incorporated on or within the capacitor or mounted separately within the luminaire.
/ c% N5 v- w. X$ x) Y9 u; a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?+ H$ ?4 e' i7 T7 o+ j. F; N
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?7 c ?" t. Z' W/ R4 E, V: S
3、限值50V,34V 是r.m.s, 还是peak?
; ]( P) R$ l& u8 m3 c* J4、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?4 _/ G- l9 W# X( [
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?9 r# S7 M3 @) d- W4 |* b: P7 S
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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