IFC 4.3.0.1 (IFC4X3) development

7.4.4.39 Pset_LightFixtureTypeCommon

7.4.4.39.1 Semantic definition

Common data for light fixtures. History: IFC4 - Article number and manufacturer specific information deleted. Use Pset_ManufacturerTypeInformation. ArticleNumber instead. Load properties moved from Pset_LightFixtureTypeThermal (deleted).

7.4.4.39.2 Applicable entities

7.4.4.39.3 Properties

Name Property Type Data Type Description
Reference IfcPropertySingleValue IfcIdentifier

Reference ID for this specified type in this project (e.g. type 'A-1'), Also referred to as "construction type". It should be provided as an alternative to the name of the "object type", if the software does not support object types and no classification reference to a recognized classification system used.

Status IfcPropertyEnumeratedValue PEnum_ElementStatus

Status of the element, predominately used in renovation or retrofitting projects. The status can be assigned to as "New" - element designed as new addition, "Existing" - element exists and remains, "Demolish" - element existed but is to be demolished, "Temporary" - element will exists only temporary (like a temporary support structure).

NumberOfSources IfcPropertySingleValue IfcCountMeasure

Number of sources .

TotalWattage IfcPropertySingleValue IfcPowerMeasure

Wattage on whole lightfitting device with all sources intact.

LightFixtureMountingType IfcPropertyEnumeratedValue PEnum_LightFixtureMountingType

A list of the available types of mounting for light fixtures from which that required may be selected.

LightFixturePlacingType IfcPropertyEnumeratedValue PEnum_LightFixturePlacingType

A list of the available types of placing specification for light fixtures from which that required may be selected.

MaintenanceFactor IfcPropertySingleValue IfcReal

The arithmetical allowance made for depreciation of lamps and reflective equipment from their initial values due to dirt, fumes, or age.

MaximumPlenumSensibleLoad IfcPropertySingleValue IfcPowerMeasure

Maximum or Peak sensible thermal load contributed to return air plenum by the light fixture.

MaximumSpaceSensibleLoad IfcPropertySingleValue IfcPowerMeasure

Maximum or Peak sensible thermal load contributed to the conditioned space by the light fixture.

SensibleLoadToRadiant IfcPropertySingleValue IfcPositiveRatioMeasure

Percent of sensible thermal load to radiant heat.

Table 7.4.4.39.A

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7.4.4.39.4 Changelog

  • applicability, IfcLightFixture
  • property, MaximumPlenumSensibleLoad
  • property, MaximumSpaceSensibleLoad
  • property, Reference
  • property, SensibleLoadToRadiant
  • property, Status
  • applicability, IfcLightFixtureType
  • property, ArticleNumber
  • property, ManufacturersSpecificInformation