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 occurence of IfcCableSegment with predefined type WIREPAIRSEGMENT.
7.8.4.19.2 Applicable entities
- IfcCableSegment/WIREPAIRSEGMENT
- IfcCableSegmentType/WIREPAIRSEGMENT
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. |