§ 17.54 - Rated lamp voltage.

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§ 17.54 Rated lamp voltage.

To insure the necessary lumen output by obstruction lights, the rated voltage of incandescent lamps used shall correspond to be within 3 percent higher than the voltage across the lamp socket during the normal hours of operation.

[42 FR 54826, Oct. 11, 1977]

                    
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§ 17.54 - Rated lamp voltage.

§ 17.54 Rated lamp voltage.