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ASHRAE 90.1-2004

Definitions

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 Alterations: a replacement or addition to a building or its systems and equipment; routine maintenance, repair, and service or a change in the building’s use classification or category shall not constitute an alteration.

Exterior lighting power allowance: the maximum lighting power in watts allowed for the exterior of a building.

Historic: a building or space that has been specifically designated as historically significant by the adopting authority or is listed in “The National Register of Historic Places” or has been determined to be eligible for listing by the U.S. Secretary of the Interior.

Installed interior lighting power: the power in watts of all permanently installed general, task, and furniture lighting systems and luminaires.

Interior lighting power allowance: the maximum lighting power in watts allowed for the interior of a building.

Lighting Power Density (LPD): the maximum lighting power per unit area of a building classification of space function.

Permanently installed: equipment that is fixed in place and is not portable or movable.

 

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