|
|
燈具 跨LN之間CX電容兩端, 斷電的時候,法規有規定多少秒要消掉? ( 洩放電組多久時間降多少? ) % T' \- A6 \' }* I& h( ^ T' ]3 s
% g5 V0 _* X: i6 K! J1598及153有放電要求，都是1分鐘!) P( Q9 \& c9 q3 c& d: z
固定燈具 UL 1598 – 6.8:
5 ]! U* G, V" G/ s7 wThe voltage across the capacitor terminals at the end of 1 minute shall be reduced to a value of 50: A# ^$ ~$ ]3 \1 }! c ]* T
V or less, and the energy stored shall be less than 20 J, as determined by the equation:* _6 R( d7 ?4 }. Q
J=5x10-7 cv2
+ y# g" S+ S! C4 w9 J4 w3 k4 d$ {% g3 t7 ~; y. X8 U4 C
移動燈具UL 153 - 67.3:% P( w5 Z- @0 t0 h: j
67.3.1 A portable luminaire having a capacitor as a component separate from the ballast shall incorporate, Q7 p" H6 j1 d, ^; D
means, such as a bleeder resistor, for the automatic discharge of the capacitor within 1 minute after( C+ M$ L0 n1 E5 y& X
removal of the lamp from the circuit or after opening of the primary circuit, or both. The voltage (V) at the end of 1 minute across the terminals shall be reduced to a value of 50 volts or less, and the energy stored (J) shall be less than 20 joules as determined by the equation:
+ P$ e, d$ X% L0 {% EJ=5x10-7 CV2
4 r, e$ {5 s q' x. C6 L+ r/ ]+ ? |
|
/1 
|关于安规|小黑屋|安规QQ群|Archiver|手机版|安规网
( 粤ICP13023453-10 ) 
窥视卡
雷达卡
发表于 2015-6-11 16:36
收藏
分享
好帖
鸡蛋
提升卡
置顶卡
沉默卡
喧嚣卡
变色卡
抢沙发
千斤顶
显身卡