luminaire dirt-depreciation factor

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A factor (used in illumination calculations) which relates the initial illumination provided by a clean, new luminaire to the reduced illumination that it will provide as a result of the accumulation of dirt on the luminaire at the time when it is next scheduled for cleaning.

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No references found			Lumberton lumbodorsal fascia lumbosacral plexus Lumbricidae Lumbriclymeninae Lumbriculidae Lumbricus Lumbrineridae Lumen lumen maintenance curve lumen method lumen per watt lumen-hour Lumen-Second Lumena lumerg Lumet, Sidney Lumière brothers Lumière, Louis Jean Lumiere, Louis Jean and Auguste Lumière, Louis Jean and Auguste Lumiflavin lumiline lamp luminaire luminaire classification luminaire dirt-depreciation factor luminaire efficiency Luminaire, Recessed Luminance luminance carrier luminance channel luminance contrast Luminance Factor Luminance Meter luminance primary Luminance Ratio luminance signal Luminescence Luminescence Analysis luminescent luminescent cell Luminescent Center luminescent dye Luminescent Organism Luminescent Organs luminescent screen luminism luminol luminophor luminosity Luminosity Class			lumenal Lumenare Test Automation lumenous flux lumenous flux lumenous flux lumens lumens lumens Lumens Per Watt lumerg LUMES Lumet, Sidney LUMHS Lumiere Lumière Lumière brothers Lumière, Louis Jean Lumiere, Louis Jean and Auguste Lumière, Louis Jean and Auguste Lumières Lumiflavin lumiline lamp lumin- lumina lumina lumina Luminaire Luminaire luminaire classification Luminaire Dirt Depreciation luminaire dirt-depreciation factor Luminaire Efficacy Rating luminaire efficiency Luminaire, Recessed luminaires luminaires Luminal Luminal Luminal Luminal (drug) Luminal (drug) Luminal (drug) Luminal CCK-Releasing Factor Luminal Diameter to Wall Thickness Luminal Front Velocity luminal phase digestion luminal phase digestion luminal phase digestion luminal phase digestion Luminal Sodium luminance luminance luminance luminance luminance carrier luminance channel luminance contrast Luminance Element luminance factor Luminance Meter luminance primary

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