ANSI/NEMA C78.375-2014

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American National Standard for Fluorescent Lamps – Guide for Electrical Measures
standard by American National Standards Institute / National Electrical Manufacturers Association, 01/01/2014



This standard describes the procedures to be followed and the precautions to be observed in obtaining uniform and reproducible measurements of the electrical characteristics of fluorescent lamps under standard conditions when operated on alternating current (ac) circuits. These methods are applicable both to lamps having hot cathodes — either switch-start (preheat-start), rapid-start (continuously heated cathodes), or instant-start — and to lamps of the cold-cathode variety.

The electrical characteristics usually measured are lamp current, lamp voltage, and lamp power. In the case of rapid-start lamps, the power measurements may include both the arc watts1 and the cathode watts. Total lamp power is the sum of arc watts and cathode watts. The methods noted in this standard apply to fluorescent lamps operated at common power-line frequencies (50 and 60 Hz). Other methods may be needed for operation of lamps at high frequencies, and these are under consideration.

Product Details

ANSI Approved
Number of Pages:
File Size:
1 file , 570 KB
Part of:
ANSI Fluorescent Set
Product Code(s):
100417, 100417, 100417