IFC 4.3.1.0 (IFC4X3_ADD1) development

7.8.4.19 Pset_CableSegmentTypeWirePairSegment

7.8.4.19.1 Semantic definition

Properties of wire pair segments. This property set is applicable to a type or occurrence of IfcCableSegment with predefined type WIREPAIRSEGMENT.

7.8.4.19.2 Applicable entities

7.8.4.19.3 Properties

Name Property Type Data Type Description
CharacteristicImpedance IfcPropertySingleValue IfcElectricResistanceMeasure

A quantity defined for a mode of propagation at a given frequency in a specific uniform transmission line or uniform waveguide by one of the three following relations: Z1 = S/ |I|2 Z2 = |U|2 / S Z3 = U / I where Z is the complex characteristic impedance, S the complex power and U and I are the values, usually complex, respectively of a voltage and a current conventionally defined for each type of mode by analogy with transmission line equations.

ConductorDiameter IfcPropertySingleValue IfcPositiveLengthMeasure

Indicates the conductor diameter. It is only used for twisted and untwisted wire pair.

CoreConductorDiameter IfcPropertySingleValue IfcPositiveLengthMeasure

Indicates the core conductor diameter. It is only used for coaxial wire pair.

JacketColour IfcPropertySingleValue IfcLabel

Indicates the colour of the cable or fitting jacket.

ShieldConductorDiameter IfcPropertySingleValue IfcPositiveLengthMeasure

Indicates the shielded conductor diameter. It is only used for coaxial wire pair.

WirePairType IfcPropertyEnumeratedValue PEnum_WirePairType

Indicates the type of wire pair, i.e., twisted, untwisted or coaxial pair.

Table 7.8.4.19.A

Edit on Github


Is this page difficult to understand? Let us know!

7.8.4.19.4 Changelog

7.8.4.19.4.1 IFC4.3_DEV_9f90c1f0

  • New resource