IFC 4.3.0.1 (IFC4X3) development

7.8.4.49 Pset_DistributionSystemTypeOverheadContactlineSystem

7.8.4.49.1 Semantic definition

Properties of an overhead contact line system. The property set is associated with the predefined type OVERHEAD_CONTACT_LINE_SYSTEM of IfcDistributionSystem.

7.8.4.49.2 Applicable entities

7.8.4.49.3 Properties

Name Property Type Data Type Description
SpanNominalLength IfcPropertySingleValue IfcPositiveLengthMeasure

The length of span as a design parameter for the overhead contactline system.

ContactWireStagger IfcPropertySingleValue IfcPositiveLengthMeasure

Lateral displacement of the contact wire to opposite sides of the track centre at successive supports.

ContactWireNominalDrop IfcPropertySingleValue IfcPositiveLengthMeasure

Vertical distance between the main catenary wire and the contact wire measured at a support point.

PressureRange IfcPropertyBoundedValue IfcPressureMeasure

Allowable maximum and minimum working pressure (relative to ambient pressure).

ContactWireNominalHeight IfcPropertySingleValue IfcPositiveLengthMeasure

Nominal distance from the top of the rail to the lower face of the contact wire, measured perpendicular to the track.

ContactWireUplift IfcPropertySingleValue IfcNonNegativeLengthMeasure

Vertical upward movement of the contact wire due to the force produced from the pantograph.

ElectricalClearance IfcPropertySingleValue IfcPositiveLengthMeasure

The recommended air clearances between earth and the live parts of the overhead contactline system.

NumberOfOverlappingSpans IfcPropertySingleValue IfcCountMeasure

Number of overlapping spans in the overhead contactline system.

PantographType IfcPropertySingleValue IfcLabel

Indicates the type of pantograph as a design parameter for the overhead contactline system.

TensionLength IfcPropertySingleValue IfcPositiveLengthMeasure

Length of overhead contactline between two terminating points. It is a design parameter for the overhead contactline system.

OCSType IfcPropertyEnumeratedValue PEnum_OverheadContactLineType

Indicates the type of overhead contactline system (OCS).

Table 7.8.4.49.A

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7.8.4.49.4 Changelog

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