|
各位同学!
0 u, B' g6 R1 J8 {% }1 G 那位同学做过附录C的测试,看红色字体(灯管与合适的等效电阻的中点连接),合适的等效电阻具体是多大电阻呢?怎么算出来的?谢谢!
0 ?; x) k0 e2 b* ^ b) Lamp rectification
# R1 l% q: j, u; R) L1 O0 t/ k1) Luminaires for fluorescent lamps (Figures C.1 and C.2)
6 m1 Z7 S, m/ y( B9 j; t This is a fault condition which may occur after extended use in luminaires employing
. ]1 x( C1 Z: Y2 x3 m' @starterless ballasts with capacitive reactance control. When testing luminaires for the 5 N( { z$ b9 @0 k* m2 `3 L
rectifying effect, the circuit shown in Figure C.1 shall be used. The lamp is connected to
4 o8 F& B. g: e9 t$ Uthe midpoint of the appropriate equivalent resistors. The rectifier polarity is chosen so
/ P5 f/ ^/ P2 m' A: I! _& Yas to give the most unfavourable operating conditions. If necessary, the lamp is started
, L2 I9 ^ k% husing a suitable starting device." u6 @/ \5 @- b9 _) J& W
|
|