IfcCableSegmentType

Definition from IAI: An IfcCableSegmentType is a type of flow segment used to carry electrical power or communications signals.

HISTORY: New entity in IFC 2x2.

Use Definitions

A cable segment type is used to define the common properties of a cable segment that may be applied to many occurrences of that type. A cable segment is used to typically join two sections of an electrical network or a network of components carrying the electrical service. Cable segment types may be exchanged without being already assigned to occurrences.

The occurrences of the IfcCableSegmentType are represented by instances of IfcFlowSegment or its subtypes.

Property Set Use Definition:

The property sets relating to the IfcCableSegmentType are defined by the IfcPropertySet and attached by the IfcRelDefinesByType relationship. It is accessible by the inverse IsDefinedBy relationship. The following property set definitions specific to the IfcCableSegmentType are part of this IFC release:

Pset_CableSegmentTypeCableSegment: specific property set for the properties of a whole cable (including the aggregation of conductors within the cable), if available
Pset_CableSegmentTypeConductorSegment: specific property set for the properties of an individual conductor within an electrical cable, if available.

Geometry Use Definitions

Representations of the type are defined as representation maps (at the level of the supertype IfcTypeProduct). These are assigned at the occurrence through the IfcShapeRepresentation.Item being an IfcMappedItem.

EXPRESS specification:

ENTITY IfcCableSegmentType

SUBTYPE OF (

IfcFlowSegmentType);

PredefinedType

IfcCableSegmentTypeEnum;

END_ENTITY;

Attribute definitions:

PredefinedType

Identifies the predefined types of cable segment from which the type required may be set.

Inheritance graph

ENTITY IfcCableSegmentType;

ENTITY IfcRoot;

GlobalId

IfcGloballyUniqueId;

OwnerHistory

IfcOwnerHistory;

Name

OPTIONAL IfcLabel;

Description

OPTIONAL IfcText;

ENTITY IfcObjectDefinition;

INVERSE

HasAssignments

SET OF IfcRelAssigns FOR RelatedObjects;

IsDecomposedBy

SET OF IfcRelDecomposes FOR RelatingObject;

Decomposes

SET [0:1] OF IfcRelDecomposes FOR RelatedObjects;

HasAssociations

SET OF IfcRelAssociates FOR RelatedObjects;

ENTITY IfcTypeObject;

ApplicableOccurrence

OPTIONAL IfcLabel;

HasPropertySets

OPTIONAL SET [1:?] OF IfcPropertySetDefinition;

INVERSE

ObjectTypeOf

SET [0:1] OF IfcRelDefinesByType FOR RelatingType;

ENTITY IfcTypeProduct;

RepresentationMaps

OPTIONAL LIST [1:?] OF UNIQUE IfcRepresentationMap;

Tag

OPTIONAL IfcLabel;

ENTITY IfcElementType;

ElementType

OPTIONAL IfcLabel;

ENTITY IfcDistributionElementType;

ENTITY IfcDistributionFlowElementType;

ENTITY IfcFlowSegmentType;

ENTITY IfcCableSegmentType;

PredefinedType

IfcCableSegmentTypeEnum;

END_ENTITY;