7.4.3.15 IfcElectricDistributionBoard

Tableau de distribution électrique
Elektrischer Verteilungsregler

A distribution board is a flow controller in which instances of electrical devices are brought together at a single place for a particular purpose.

A distribution provides a housing for connected electrical distribution elements so that they can be viewed, operated or acted upon from a single place. Each connected item may have its own geometric representation and location.

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 353.
Type
IfcElectricApplianceType
IfcDistributionFlowElementType
IfcDistributionElementType

Table 353 — IfcElectricDistributionBoard Object Typing



Property Sets for Objects

The Property Sets for Objects concept applies to this entity as shown in Table 354.
PredefinedTypeName
 Pset_ElectricDistributionBoardTypeCommon
 Pset_ElectricDistributionBoardOccurrence
 Pset_SoundGeneration
 Pset_ElectricalDeviceCommon
 Pset_Condition
 Pset_EnvironmentalImpactIndicators
 Pset_EnvironmentalImpactValues
 Pset_ManufacturerOccurrence
 Pset_ManufacturerTypeInformation
 Pset_PackingInstructions
 Pset_ServiceLife
 Pset_Warranty

Table 354 — IfcElectricDistributionBoard Property Sets for Objects



Quantity Sets

The Quantity Sets concept applies to this entity as shown in Table 355.
Name
Qto_ElectricDistributionBoardBaseQuantities

Table 355 — IfcElectricDistributionBoard Quantity Sets



Material Constituents

The Material Constituents concept applies to this entity as shown in Table 356.
NameDescription
CasingMaterial from which the casing is constructed.

Table 356 — IfcElectricDistributionBoard Material Constituents



Port Nesting

The Port Nesting concept applies to this entity as shown in Table 357.
PredefinedTypeNameFlowTypeDescription
CONSUMERUNITLineSINKELECTRICALIncoming power, such as a cable connecting from the electrical utility or another distribution board.
CONSUMERUNITGroundSINKEARTHINGGrounding connection, such as a cable connecting to a cable fitting connected to a cold water pipe segment coming from the ground.
CONSUMERUNITCircuit#1SOURCEELECTRICALA downstream circuit, typically connected to a circuit breaker protective device.
CONSUMERUNITCircuit#2SOURCEELECTRICALA downstream circuit, typically connected to a circuit breaker protective device.
CONSUMERUNITCircuit#3SOURCEELECTRICALA downstream circuit, typically connected to a circuit breaker protective device.
CONSUMERUNITCircuit#4SOURCEELECTRICALA downstream circuit, typically connected to a circuit breaker protective device.
CONSUMERUNITCircuit#5SOURCEELECTRICALA downstream circuit, typically connected to a circuit breaker protective device.
CONSUMERUNITCircuit#6SOURCEELECTRICALA downstream circuit, typically connected to a circuit breaker protective device.
CONSUMERUNITCircuit#7SOURCEELECTRICALA downstream circuit, typically connected to a circuit breaker protective device.
CONSUMERUNITCircuit#8SOURCEELECTRICALA downstream circuit, typically connected to a circuit breaker protective device.

Table 357 — IfcElectricDistributionBoard Port Nesting




XSD Specification:

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

EXPRESS Specification:

ENTITY IfcElectricDistributionBoard
SUBTYPE OF IfcFlowController;
PredefinedType : OPTIONAL IfcElectricDistributionBoardTypeEnum;
WHERE
CorrectPredefinedType : NOT(EXISTS(PredefinedType)) OR (PredefinedType <> IfcElectricDistributionBoardTypeEnum.USERDEFINED) OR ((PredefinedType = IfcElectricDistributionBoardTypeEnum.USERDEFINED) AND EXISTS (SELF\IfcObject.ObjectType));
CorrectTypeAssigned : (SIZEOF(IsTypedBy) = 0) OR ('IFCELECTRICALDOMAIN.IFCELECTRICDISTRIBUTIONBOARDTYPE' 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 IfcElectricDistributionBoardType is associated), or the inherited attribute ObjectType shall be provided, if the PredefinedType is set to USERDEFINED.
CorrectTypeAssigned : Either there is no electric distribution board type object associated, i.e. the IsTypedBy inverse relationship is not provided, or the associated type object has to be of type IfcElectricDistributionBoardType.

Inheritance Graph:

ENTITY IfcElectricDistributionBoard
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 IfcElectricDistributionBoard
PredefinedType : OPTIONAL IfcElectricDistributionBoardTypeEnum;
END_ENTITY;

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