188.8.131.52.1 Semantic definition
Properties for the occurrence of an electrical cable, core or conductor that conforms to a type as specified by an appropriate type definition within IFC. NOTE: Maximum allowed voltage drop should be derived from the property within Pset_ElectricalCircuit.
184.108.40.206.2 Applicable entities
|Name||Property Type||Data Type||Description|
The highest and lowest local ambient temperature likely to be encountered.
An arbitrary correction factor that may be applied by the user.
Number of parallel circuits.
Method of installation of cable/conductor. Installation methods are typically defined by reference in standards such as IEC 60364-5-52, table 52A-1 or BS7671 Appendix 4 Table 4A1 etc. Selection of the value to be used should be determined from such a standard according to local usage.
Special installation conditions relating to particular types of installation based on IEC60364-5-52:2001 reference installation methods C and D.
Distance measured between parallel circuits.
Thermal conductivity of soil. Generally, within standards such as IEC 60364-5-52, table 52A-16, the resistivity of soil is required (measured in [SI] units of degK.m /W). This is the reciprocal of the conductivity value and needs to be calculated accordingly.
Number of carrier segments (tray, ladder etc.) that are vertically stacked (vertical is measured as the z-axis of the local coordinate system of the carrier segment).
The method of mounting cable segment occurrences on a cable carrier occurrence from which the method required can be selected. This is for the purpose of carrying out 'worst case' cable sizing calculations and may be a conceptual requirement rather than a statement of the physical occurrences of cable and carrier segments.
Indication of whether the cable occurrences are mounted horizontally (= TRUE) or vertically (= FALSE).
Indication of whether the cable occurrences are mounted flat (= TRUE) or in a trefoil pattern (= FALSE).
Maximum value of electric current which can be carried continuously by a conductor, a device or an apparatus, under specified conditions without its steady-state temperature exceeding a specified value. Based on IEC60826-11-13. NOTE: The temperature specified value is maximum Design Ambient Temperature.
Maximum cable length based on voltagedrop. NOTE: This value may also be specified as a constraint within an IFC model if required but is included within the property set at this stage pending implementation of the required capabilities within software applications.
The power loss in [W].
Total loss of power across this cable.
Indicates the sequential code of the cable or wire.