|Segment de câble|
A cable segment is a flow segment used to carry electrical power, data, or telecommunications signals.
A cable segment is used to typically join two sections of an electrical network or a network of components carrying the electrical service.
HISTORY New entity in IFC4
Common Use Definitions
The following concepts are inherited at supertypes:
- IfcRoot: Identity, Revision Control
- IfcElement: Product Placement, Box Geometry, FootPrint Geometry, Body SurfaceOrSolidModel Geometry, Body SurfaceModel Geometry, Body Tessellation Geometry, Body Brep Geometry, Body AdvancedBrep Geometry, Body CSG Geometry, Mapped Geometry
- IfcDistributionElement: Spatial Containment
- IfcDistributionFlowElement: Clearance Geometry, Lighting Geometry
- IfcFlowSegment: Axis Geometry
The Object Typing concept applies to this entity as shown in Table 336.
Table 336 — IfcCableSegment Object Typing
Property Sets for Objects
The Property Sets for Objects concept applies to this entity as shown in Table 337.
Table 337 — IfcCableSegment Property Sets for Objects
The Quantity Sets concept applies to this entity as shown in Table 338.
Table 338 — IfcCableSegment Quantity Sets
Material Profile Set Usage
The Material Profile Set Usage concept applies to this entity as shown in Table 339.
|Conductor||Material from which the conductors are constructed, such as Aluminium or Copper.|
|Insulation||The material from which the insulation is constructed such as PVC, PEX, or EPR.|
|Screen||The material from which the screen that covers the sheath is constructed (mantel) such as Aluminium, Copper, Steel, or Lead.|
|Sheath||The outer sheathing of the cable which may be color-coded.|
Table 339 — IfcCableSegment Material Profile Set Usage
The Object Aggregation concept applies to this entity as shown in Table 340.
Table 340 — IfcCableSegment Object Aggregation
The Port Nesting concept applies to this entity as shown in Table 341.
| ||Input||SINK||NOTDEFINED||The input end of the cable. While many cables may be bidirectional, port direction is indicated for connectivity purposes.|
| ||Output||SOURCE||NOTDEFINED||The output end of the cable. While many cables may be bidirectional, port direction is indicated for connectivity purposes.|
Table 341 — IfcCableSegment Port Nesting
XSD Specification: <xs:element name="IfcCableSegment" type="ifc:IfcCableSegment" substitutionGroup="ifc:IfcFlowSegment" nillable="true"/>
<xs:attribute name="PredefinedType" type="ifc:IfcCableSegmentTypeEnum" use="optional"/>
|CorrectPredefinedType|| : ||NOT(EXISTS(PredefinedType)) OR
(PredefinedType <> IfcCableSegmentTypeEnum.USERDEFINED) OR
((PredefinedType = IfcCableSegmentTypeEnum.USERDEFINED) AND EXISTS (SELF\IfcObject.ObjectType));|
|CorrectTypeAssigned|| : ||(SIZEOF(IsTypedBy) = 0) OR
('IFCELECTRICALDOMAIN.IFCCABLESEGMENTTYPE' IN TYPEOF(SELF\IfcObject.IsTypedBy.RelatingType));|
|PredefinedType|| : |
Identifies the predefined types of cable segment from which the type required may be set.
|CorrectPredefinedType|| : ||
Either the PredefinedType attribute is unset (e.g. because an IfcCableSegmentType is associated), or the inherited attribute ObjectType shall be provided, if the PredefinedType is set to USERDEFINED.
|CorrectTypeAssigned|| : ||
Either there is no cable segment type object associated, i.e. the IsTypedBy inverse relationship is not provided, or the associated type object has to be of type IfcCableSegmentType.
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