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各位同学!+ ^0 I/ m4 A. f5 q
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!
! {! N+ o; ^+ k0 Y6 `& E b) Lamp rectification
! S& ^6 E1 r4 f0 f- T; `1) Luminaires for fluorescent lamps (Figures C.1 and C.2) 5 p! z! Y' y) ]- r( U0 v: L' @
This is a fault condition which may occur after extended use in luminaires employing 4 D2 p6 S! T( R* o4 R
starterless ballasts with capacitive reactance control. When testing luminaires for the
* `+ G2 y- e- R6 [$ b/ p7 e# urectifying effect, the circuit shown in Figure C.1 shall be used. The lamp is connected to
. V- [) p0 P2 u8 Dthe midpoint of the appropriate equivalent resistors. The rectifier polarity is chosen so : c# }' `/ O; s+ G0 E4 h
as to give the most unfavourable operating conditions. If necessary, the lamp is started
, y8 e5 n9 w4 \0 Y3 _- z7 _' C, {using a suitable starting device.
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