Home > Terms > English, UK (UE) > Luminaire dirt depreciation factor (LDD)
Luminaire dirt depreciation factor (LDD)
The multiplier used in luminance calculations to relate the initial luminance provided by clean, new luminaries to the reduced luminance that they will provide due to dirt collection on the luminaries at the time at which it is anticipated that cleaning p
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- Part of Speech: noun
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- Industry/Domain: Electrical equipment
- Category: Electricity
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