#### 5.4.5.6 SPARKie_SpaceElectricalRequirements

buildingSMART Data Dictionary

PSD-XML

- LightingPowerDensity
  P_SINGLEVALUE / IfcEnergyMeasure

  | LightingPowerDensity: Lighting Power Density (LPD) is a lighting power requirement defined in North America by the American National Standards Institute (ANSI), American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE), and the Illuminating Engineering Society of North America (IESNA) Lighting subcommittee. Lighting Power Density technically represents the load of any lighting equipment in any defined area, commonly represented in watts per square foot of the lighting equipment. However, in the lighting industry it is often associated with the lighting power allowance (LPA) permitted by the building energy code in question. As no measurement unit is currently defined in IFC for Energy/Area, units are expressed as Energy where the area is presumed to be the default project units for Area.

- AppliancePowerDensity
  P_SINGLEVALUE / IfcPowerMeasure

  | AppliancePowerDensity: The load of appliances in any defined area, commonly represented in watts per square foot.

- EquipmentPowerDensity
  P_SINGLEVALUE / IfcPowerMeasure

  | EquipmentPowerDensity: The load of equipment in any defined area, commonly represented in watts per square foot.

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