DS DS/EN 60920/A11
DS DSEN 60920A11 2000-JUN-28 Ballasts for tubular fluorescent lamps - General and safety requrements
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Specifies ballasts, excluding resistance types for use on a.c. supplies up to 1000 V at 50 Hz or 60 Hz, associated with tubular fluorescent lamps with or without pre-heated cathodes operated with or without a starter or starting device and having rated wattages, dimensions and characteristics as specified in IEC 81.