sábado, 6 de fevereiro de 2010

ILUMINAÇÃO -EFICIÊNCIA ENERGÉTICA


The ratio of light output to watts input
•lumens per watt

The higher the efficacy, the more efficient the light source
•40 watt incandescent = 480 lumens
•40 watt fluorescent = 2640 lumens

Luminairesthat operate at >
100 W = efficacy
> 60 lumens/W

Exceptions
•Traffic signals
•Lighting within outdoor signs
•Lighting used to illuminate public monuments or registered historic landmarks
•If an occupancy sensor or motion sensor controls the lighting applicationMandatory ProvisionsMandatory ProvisionsPrescriptive

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