7.4.3.23 IfcElectricTimeControl

Elektrische Zeitsteuerung

An electric time control is a device that applies control to the provision or flow of electrical energy over time.

HISTORY  New entity in IFC4

Common Use Definitions

The following concepts are inherited at supertypes:

 Instance diagram

Object Typing

The Object Typing concept applies to this entity as shown in Table 374.
Type
IfcElectricTimeControlType
IfcDistributionFlowElementType
IfcDistributionElementType

Table 374 — IfcElectricTimeControl Object Typing



Property Sets for Objects

The Property Sets for Objects concept applies to this entity as shown in Table 375.
PredefinedTypeName
 Pset_ElectricTimeControlTypeCommon
 Pset_SoundGeneration
 Pset_ElectricalDeviceCommon
 Pset_Condition
 Pset_EnvironmentalImpactIndicators
 Pset_EnvironmentalImpactValues
 Pset_ManufacturerOccurrence
 Pset_ManufacturerTypeInformation
 Pset_PackingInstructions
 Pset_ServiceLife
 Pset_Warranty

Table 375 — IfcElectricTimeControl Property Sets for Objects



Quantity Sets

The Quantity Sets concept applies to this entity as shown in Table 376.
Name
Qto_ElectricTimeControlBaseQuantities

Table 376 — IfcElectricTimeControl Quantity Sets



Material Constituents

The Material Constituents concept applies to this entity as shown in Table 377.
NameDescription
CasingMaterial from which the casing is constructed.

Table 377 — IfcElectricTimeControl Material Constituents



Port Nesting

The Port Nesting concept applies to this entity as shown in Table 378.
PredefinedTypeNameFlowTypeDescription
 LineSINKELECTRICALReceives electrical power.
 DriveSOURCEELECTRICALTransmits electrical power according to time.

Table 378 — IfcElectricTimeControl Port Nesting




XSD Specification:

 <xs:element name="IfcElectricTimeControl" type="ifc:IfcElectricTimeControl" substitutionGroup="ifc:IfcFlowController" nillable="true"/>
 <xs:complexType name="IfcElectricTimeControl">
  <xs:complexContent>
   <xs:extension base="ifc:IfcFlowController">
    <xs:attribute name="PredefinedType" type="ifc:IfcElectricTimeControlTypeEnum" use="optional"/>
   </xs:extension>
  </xs:complexContent>
 </xs:complexType>

EXPRESS Specification:

ENTITY IfcElectricTimeControl
SUBTYPE OF IfcFlowController;
PredefinedType : OPTIONAL IfcElectricTimeControlTypeEnum;
WHERE
CorrectPredefinedType : NOT(EXISTS(PredefinedType)) OR (PredefinedType <> IfcElectricTimeControlTypeEnum.USERDEFINED) OR ((PredefinedType = IfcElectricTimeControlTypeEnum.USERDEFINED) AND EXISTS (SELF\IfcObject.ObjectType));
CorrectTypeAssigned : (SIZEOF(IsTypedBy) = 0) OR ('IFCELECTRICALDOMAIN.IFCELECTRICTIMECONTROLTYPE' IN TYPEOF(SELF\IfcObject.IsTypedBy[1].RelatingType));
END_ENTITY;

Link to EXPRESS-G diagram EXPRESS-G diagram

Formal Propositions:

CorrectPredefinedType : Either the PredefinedType attribute is unset (e.g. because an IfcElectricTimeControlType is associated), or the inherited attribute ObjectType shall be provided, if the PredefinedType is set to USERDEFINED.
CorrectTypeAssigned : Either there is no electric time control type object associated, i.e. the IsTypedBy inverse relationship is not provided, or the associated type object has to be of type IfcElectricTimeControlType.

Inheritance Graph:

ENTITY IfcElectricTimeControl
ENTITY IfcRoot
GlobalId : IfcGloballyUniqueId;
OwnerHistory : OPTIONAL IfcOwnerHistory;
Name : OPTIONAL IfcLabel;
Description : OPTIONAL IfcText;
ENTITY IfcObjectDefinition
INVERSE
HasAssignments : SET OF IfcRelAssigns FOR RelatedObjects;
Nests : SET [0:1] OF IfcRelNests FOR RelatedObjects;
IsNestedBy : SET OF IfcRelNests FOR RelatingObject;
HasContext : SET [0:1] OF IfcRelDeclares FOR RelatedDefinitions;
IsDecomposedBy : SET OF IfcRelAggregates FOR RelatingObject;
Decomposes : SET [0:1] OF IfcRelAggregates FOR RelatedObjects;
HasAssociations : SET OF IfcRelAssociates FOR RelatedObjects;
ENTITY IfcObject
ObjectType : OPTIONAL IfcLabel;
INVERSE
IsDeclaredBy : SET [0:1] OF IfcRelDefinesByObject FOR RelatedObjects;
Declares : SET OF IfcRelDefinesByObject FOR RelatingObject;
IsTypedBy : SET [0:1] OF IfcRelDefinesByType FOR RelatedObjects;
IsDefinedBy : SET OF IfcRelDefinesByProperties FOR RelatedObjects;
ENTITY IfcProduct
ObjectPlacement : OPTIONAL IfcObjectPlacement;
Representation : OPTIONAL IfcProductRepresentation;
INVERSE
ReferencedBy : SET OF IfcRelAssignsToProduct FOR RelatingProduct;
ENTITY IfcElement
Tag : OPTIONAL IfcIdentifier;
INVERSE
FillsVoids : SET [0:1] OF IfcRelFillsElement FOR RelatedBuildingElement;
ConnectedTo : SET OF IfcRelConnectsElements FOR RelatingElement;
IsInterferedByElements : SET OF IfcRelInterferesElements FOR RelatedElement;
InterferesElements : SET OF IfcRelInterferesElements FOR RelatingElement;
HasProjections : SET OF IfcRelProjectsElement FOR RelatingElement;
ReferencedInStructures : SET OF IfcRelReferencedInSpatialStructure FOR RelatedElements;
HasOpenings : SET OF IfcRelVoidsElement FOR RelatingBuildingElement;
IsConnectionRealization : SET OF IfcRelConnectsWithRealizingElements FOR RealizingElements;
ProvidesBoundaries : SET OF IfcRelSpaceBoundary FOR RelatedBuildingElement;
ConnectedFrom : SET OF IfcRelConnectsElements FOR RelatedElement;
ContainedInStructure : SET [0:1] OF IfcRelContainedInSpatialStructure FOR RelatedElements;
ENTITY IfcDistributionElement
INVERSE
HasPorts : SET OF IfcRelConnectsPortToElement FOR RelatedElement;
ENTITY IfcDistributionFlowElement
INVERSE
HasControlElements : SET [0:1] OF IfcRelFlowControlElements FOR RelatingFlowElement;
ENTITY IfcFlowController
ENTITY IfcElectricTimeControl
PredefinedType : OPTIONAL IfcElectricTimeControlTypeEnum;
END_ENTITY;

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