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标准原文:
1 k B Y$ X( N9 t8.2.7 Luminaires (other than those mentioned below) incorporating a capacitor of capacitance" l: `" W8 i X
exceeding 0,5 μF shall be provided with a discharge device so that the voltage across the
+ f, B M( A9 pcapacitor 1 min after disconnection of the luminaire from the source of supply at rated voltage6 Y2 W% m% A2 F2 R
does not exceed 50 V.! Q; m% T, O! s% p* t4 Y
Portable luminaires designed to be connected to the supply by means of a plug, track adaptor
& I4 t+ |0 k5 D9 R( R; [# ~connected luminaires, or luminaires with supply connector with contacts accessible with the
/ g% H; K2 V f. Sstandard test finger and incorporating a capacitor of capacitance exceeding 0,1 μF (or 0,25 μF
3 a4 \6 W7 ~/ u/ ], ifor luminaires with a rated voltage less than 150 V) shall be provided with a discharge device0 x# J$ O7 S$ y% B% q; {
so that 1 s after disconnection, the voltage between the pins of the plug or adaptor/connector4 h: x" @6 p0 t& B: W
contacts does not exceed 34 V.
+ S& |- R# w/ m* v9 W `Other luminaires connected to the supply by means of a plug and incorporating a capacitor7 j# y( s! r2 q0 c0 G
exceeding 0,1 μF (or 0,25 μF for luminaires of rated voltage less than 150 V) and track0 p8 t$ w7 J G7 L+ P5 c, G+ ^
adaptors mounted in luminaires shall discharge so that after 5 s, the voltage between the pins* f4 ]: [& u! M8 j# \
of the plug does not exceed 60 V r.m.s.
4 G) C9 B, }2 K9 } K5 L4 j* ^: C; oNOTE The discharge device (for all types of luminaire) may be incorporated on or within the capacitor or mounted separately within the luminaire.
8 G( y% ]- N' n0 d$ n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?, l9 N& L, _! T* ]4 W# y1 c' l
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?! j7 \8 j) i" s, N0 d' ~
3、限值50V,34V 是r.m.s, 还是peak?/ @8 ~' }" o9 x1 _# f9 x4 @
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?
1 \& i5 }3 ?; n4 u5、“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 N+ R! E' _5 f7 u" X" t% n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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