What does LDD stand for?

Luminaire Dirt Depreciation

This definition appears very rarely and is found in the following Acronym Finder categories:

Science, medicine, engineering, etc.

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Samples in periodicals archive:

Known as the Luminaire Dirt Depreciation (LDD) study, the half million dollar federally funded project has involved taking scientific measurements of available light over the past three years throughout the test group sampling to determine the benefits - in terms of both improved lighting and reduced costs - of simple periodic cleaning of the lighting fixtures themselves, with a goal of installing fewer fixtures in the first place.

Simple cleaning can save on lighting costs

The Luminaire Dirt Depreciation study has taken scientific measurements of available light over the past three years throughout the test group sampling to determine the benefits--in terms of both improved lighting and reduced costs--of periodic cleaning of the lighting fixtures themselves, with a goal of installing fewer fixtures in office buildings, schools, health facilities, and retail stores.

Cleaning Fixtures Improves Illumination

Known as the Luminaire Dirt Depreciation (LDD) study, the half million dollar federally funded project has involved taking scientific measurements of available light over the past three years throughout the test group sampling to determine the benefits in terms of both improved lighting and reduced costs - of simple periodic cleaning of the lighting fixtures themselves, with a goal of installing fewer fixtures in the first place.

Simple cleaning can save on lighting costs