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各位同学! @6 c5 r9 Q# K* T
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 O1 Q% {! A6 {9 h, H% u b) Lamp rectification
: a0 \' s9 U: ?7 {2 }! H1) Luminaires for fluorescent lamps (Figures C.1 and C.2)
2 _0 c; a1 ? _/ h$ x This is a fault condition which may occur after extended use in luminaires employing
t- c0 |% _' {- j4 Qstarterless ballasts with capacitive reactance control. When testing luminaires for the
( n! {* M& q# @7 y% d) b5 wrectifying effect, the circuit shown in Figure C.1 shall be used. The lamp is connected to
4 M" [; _3 \' fthe midpoint of the appropriate equivalent resistors. The rectifier polarity is chosen so
9 H1 @5 A+ e* F" c: qas to give the most unfavourable operating conditions. If necessary, the lamp is started
7 Y$ U) S! R! x# rusing a suitable starting device.8 ], q$ b g, [5 o
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