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标准原文:( G7 ?/ t7 t. u" o* t. D5 }
8.2.7 Luminaires (other than those mentioned below) incorporating a capacitor of capacitance
9 K! `2 [ Y, Q2 B/ W p8 O" Rexceeding 0,5 μF shall be provided with a discharge device so that the voltage across the
) {% H' N8 [6 c3 Z& ccapacitor 1 min after disconnection of the luminaire from the source of supply at rated voltage: Y0 f6 N" C( W2 R/ M% m1 G
does not exceed 50 V.2 Y" l- \8 `- `8 r" `8 F$ ]! E
Portable luminaires designed to be connected to the supply by means of a plug, track adaptor
+ V% N/ }; s8 j6 r4 ]connected luminaires, or luminaires with supply connector with contacts accessible with the
4 G0 t: H* p5 R: ?; Ustandard test finger and incorporating a capacitor of capacitance exceeding 0,1 μF (or 0,25 μF
% f7 r( p6 ^5 c! l# `. ^0 Hfor luminaires with a rated voltage less than 150 V) shall be provided with a discharge device4 W+ ]1 c" z1 p! L0 K, T# m
so that 1 s after disconnection, the voltage between the pins of the plug or adaptor/connector( T S L r' h
contacts does not exceed 34 V.
4 l6 @/ C' a" o' n# q0 W7 uOther luminaires connected to the supply by means of a plug and incorporating a capacitor, Z1 S" \/ s' O
exceeding 0,1 μF (or 0,25 μF for luminaires of rated voltage less than 150 V) and track
& q/ W9 ]% @7 j4 ?adaptors mounted in luminaires shall discharge so that after 5 s, the voltage between the pins
( V, ]) z3 J+ B/ ]. Bof the plug does not exceed 60 V r.m.s., [. q# \% {5 z% }/ F
NOTE The discharge device (for all types of luminaire) may be incorporated on or within the capacitor or mounted separately within the luminaire.
+ z# O N) X, O- {) U+ s f1 M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?
1 `( Q8 o1 N, Q/ c9 K: q% S) j2、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?
+ @2 l1 P. {8 o5 w; w6 \. X: M% B3、限值50V,34V 是r.m.s, 还是peak?
0 C4 K, M: t+ c8 i4、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?! n. N9 g" F+ a0 f6 V
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?
) R( T4 f* I/ B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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