IS 2418 Pt.1-1977

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标准号:IS 2418 Pt.1-1977
发布日期:1977/7/1 12:00:00
实施日期:1999/12/31 12:00:00
适用范围:This standard ( Part I) specifies the requirements and tests for tubular fluorescent lamps for general lighting service operated at 50 Hz. Lamps of the following types are covered:a) Lamps with preheated cathodes operated with the use of astarter, andb) Lamps with preheated cathodes operated without the use of astarter.Note — It may happen that the same lamp can be suitable for both methods of operation (a), and (b) given above. In normal operation the cathodes are continuously heated, in the case of lamps of type (a) by the arc current only, and in the case of lamps of type (b), supplementary heating by a current supplied by the ballast may be added.

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