标题: 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? [打印本页] 作者: eva_pollux 时间: 2015-6-11 16:36 标题: 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? 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? ) / ^) y! o2 k8 e# B) Z$ N6 n
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1598及153有放電要求，都是1分鐘!. c$ C3 w1 V5 \7 [" e( |* G; |
固定燈具 UL 1598 – 6.8:" q7 J* r; t% m
The voltage across the capacitor terminals at the end of 1 minute shall be reduced to a value of 50 " U3 l/ Y: b" U4 n: tV or less, and the energy stored shall be less than 20 J, as determined by the equation:, S2 ^! ^$ K4 T8 a9 `- N, ^
J=5x10-7 cv2 & k; i; x" u# |, N( H$ r+ x/ F R
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移動燈具UL 153 - 67.3:, x& A" V. y, G8 \6 P9 {
67.3.1 A portable luminaire having a capacitor as a component separate from the ballast shall incorporate % x8 M' ?% W5 R$ ?7 _9 ?means, such as a bleeder resistor, for the automatic discharge of the capacitor within 1 minute after; b1 ~7 E' [( e
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: 3 j( X' {/ J- q9 k) i! ZJ=5x10-7 CV2 5 f* Y/ ^* X1 |" P