Class Ifc4::IfcElectricAppliance¶

Defined in File Ifc4.h

Nested Relationships¶

This class is a nested type of Struct Ifc4.

Inheritance Relationships¶

Base Type¶

public Ifc4::IfcFlowTerminal (Class Ifc4::IfcFlowTerminal)

Class Documentation¶

class Ifc4::IfcElectricAppliance : public Ifc4::IfcFlowTerminal ¶

A communications appliance transmits and receives electronic or digital information as data or sound. Communication appliances may be fixed in place or may be able to be moved from one space to another. Communication appliances require an electrical supply that may be supplied either by an electrical circuit or provided from a local battery source.

HISTORY New entity in IFC2x4

Type Use Definition IfcElectricAppliance defines the occurrence of any electric appliance; common information about electric appliance types is handled by IfcElectricApplianceType. The IfcElectricApplianceType (if present) may establish the common type name, usage (predefined type), properties, materials, ports, composition, assignments, and representations. The IfcElectricApplianceType is attached using the IfcRelDefinesByType objectified relationship and is accessible by the IsTypedBy inverse attribute. If the IfcElectricApplianceType has ports or aggregated elements, such objects are reflected at the IfcElectricAppliance occurrence using the IfcRelDefinesByObject relationship. Figure 196 illustrates electric appliance type use. Figure 196 — Electric appliance type use

Property Use Definition The property sets relating to this entity are defined by IfcPropertySet and attached by the IfcRelDefinesByProperties relationship. They are accessible by the IsDefinedBy inverse attribute. Property sets may also be specified at the IfcElectricApplianceType, defining the common property data for all occurrences of the same type. They are then accessible by the IsTypedBy inverse attribute pointing to IfcElectricApplianceType.HasPropertySets. If both are given, then the properties directly defined at IfcElectricAppliance override the properties defined at IfcElectricApplianceType. Refer to the documentation at the supertype IfcFlowTerminal and ancestors for inherited property set definitions. The following property set definitions are applicable to this entity: (All Types)

Pset_ElectricAppliancePHistory (PSET_PERFORMANCEDRIVEN) Pset_ElectricApplianceTypeCommon (PSET_TYPEDRIVENOVERRIDE)

DISHWASHER

Pset_ElectricApplianceTypeDishwasher (PSET_TYPEDRIVENOVERRIDE)

ELECTRICCOOKER

Pset_ElectricApplianceTypeElectricCooker (PSET_TYPEDRIVENOVERRIDE)

Quantity Use Definition The quantities relating to this entity are defined by IfcElementQuantity and attached by the IfcRelDefinesByProperties relationship. They are accessible by the IsDefinedBy inverse attribute. The following base quantities are defined and shall be exchanged with the IfcElementQuantity.Name = ‘BaseQuantities’. Other quantities, being subjected to local standard of measurement, may be defined with another string value assigned to Name. In this case a valid value for MethodOfMeasurement shall be provided.

Qto_ElectricApplianceBaseQuantities

Material Use Definition The material of the IfcElectricAppliance is defined by IfcMaterialConstituentSet or as a fallback by IfcMaterial, and attached by the RelatingMaterial attribute on the IfcRelAssociatesMaterial relationship. It is accessible by the HasAssociations inverse attribute. Material information can also be given at the IfcElectricApplianceType, defining the common attribute data for all occurrences of the same type. The following keywords for IfcMaterialConstituentSet.MaterialConstituents[n].Name shall be used:

Casing: Material from which the casing is constructed.

Port Use Definition The distribution ports relating to the IfcElectricAppliance are defined by IfcDistributionPort and attached by the IfcRelConnectsPortToElement relationship. If the electric appliance occurrence is defined by IfcElectricApplianceType, then the port occurrences must reflect those defined at the IfcElectricApplianceType using the IfcRelDefinesByObject relationship. Ports are specific to the IfcElectricAppliance PredefinedType as follows indicated by the IfcDistributionPort Name, PredefinedType, and FlowDirection:

DISHWASHER

Power (ELECTRICAL, SINK): Receives electrical power. HotWater (DOMESTICHOTWATER, SINK): Hot water used for washing dishes.

ELECTRICCOOKER