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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? ) : C' d, c: O+ J# Y+ v
; j/ b+ h. @( K0 w2 x
1598及153有放電要求，都是1分鐘!- ~ P5 X9 K }) N, {2 J
固定燈具 UL 1598 – 6.8:
1 E; m3 t4 M$ CThe voltage across the capacitor terminals at the end of 1 minute shall be reduced to a value of 50
- y! P# G/ K B# d& H! `V or less, and the energy stored shall be less than 20 J, as determined by the equation:5 l0 O4 Q* z6 n" I s
J=5x10-7 cv2 " e& b' R" c0 Q
5 x9 J' L, T: |
移動燈具UL 153 - 67.3:$ h8 x% Q9 X. c% f
67.3.1 A portable luminaire having a capacitor as a component separate from the ballast shall incorporate, D, O0 o J7 s0 u8 |
means, such as a bleeder resistor, for the automatic discharge of the capacitor within 1 minute after
' K7 f2 l& }' yremoval 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:0 ?. I# A C( ]- m4 \
J=5x10-7 CV2/ }4 ^ o# h8 U# ?% L4 k7 @7 {7 X
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发表于 2015-6-11 16:36
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