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16/08/2013 09:33

 The development of electronic ballasts

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The typical electronic ballast Technical indicators: power factor and total harmonic distortion (THD), crest factor (CF), the lamp filament preheating (eg filament preheat time, preheat the lamp voltage), open lamp voltage, lamp ignition voltage, lamp voltage and other parameters.

 

20 In the late 1980s, China's development and production of electronic ballasts units increasing number of production units to change the chaos without standard production, improve product quality electronic ballast,

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 when the Ministry of Light Industry in 1989 and 9 August issued a ZBK74011 (tubular fluorescent electronic ballasts for general and safety requirements) professional standards, and in February 1, 1990 began. In March 1990, they released ZBK74012 (tubular fluorescent electronic ballasts performance requirements),

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on October 1, 1990 began, but taking into account current production of electronic ballasts are seriously overweight harmonic content Therefore, ZBK74012-9 standards on harmonic content requirements,

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