IEC 60929 is an international standard created by the International Electrotechnical Commission and covers electronic ballasts used in AC supplies with voltages up to 1000 V and with operating frequencies at 50 Hz or 60 Hz. The actual operating frequency may deviate from the specified supply frequency. [1]
The standard essentially covers the same material as IEC 60921, but it is considerably more complex due to the high frequency aspect of electronic ballasts. Appendix E of the standard defines the DALI, which specifies how ballasts are controlled.
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