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标准原文:# G' d# y$ o; v
8.2.7 Luminaires (other than those mentioned below) incorporating a capacitor of capacitance* f. _0 g5 P6 K4 _; v8 N+ a
exceeding 0,5 μF shall be provided with a discharge device so that the voltage across the M# z6 ]8 I' p+ l4 i2 G) Y* w
capacitor 1 min after disconnection of the luminaire from the source of supply at rated voltage
; S5 t* y4 V4 ]) z7 cdoes not exceed 50 V.
6 q, S! q1 U2 w* MPortable luminaires designed to be connected to the supply by means of a plug, track adaptor
% u4 O& s; d) w; Iconnected luminaires, or luminaires with supply connector with contacts accessible with the" r$ O$ ?' _4 ]7 o
standard test finger and incorporating a capacitor of capacitance exceeding 0,1 μF (or 0,25 μF
9 }; S! p6 L( y4 e+ c! ]( M" i8 r! e( _for luminaires with a rated voltage less than 150 V) shall be provided with a discharge device
f' ]. j1 D% sso that 1 s after disconnection, the voltage between the pins of the plug or adaptor/connector0 v* l# V! V8 Z' A v" q# H/ J
contacts does not exceed 34 V.
1 q0 g2 U' s- H+ `0 O0 W% FOther luminaires connected to the supply by means of a plug and incorporating a capacitor
) B% y* Y2 |3 iexceeding 0,1 μF (or 0,25 μF for luminaires of rated voltage less than 150 V) and track
0 }( ?. a. U7 b# H2 O/ u, z( | uadaptors mounted in luminaires shall discharge so that after 5 s, the voltage between the pins
0 R) z/ |( W7 S0 p! A: Cof the plug does not exceed 60 V r.m.s.* `2 e- `* n# k; O
NOTE The discharge device (for all types of luminaire) may be incorporated on or within the capacitor or mounted separately within the luminaire.
) |. m' i* c/ d2 }6 r+ w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?6 y6 `; g3 Z/ T+ i, G+ J. e, r
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?
# E. d# ?' G& f" z1 A5 I3、限值50V,34V 是r.m.s, 还是peak?# @: @) F( N( K" j
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?" }/ D9 c |) y' L' o
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?
8 g8 h" f+ z0 z( a1 Y$ [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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