Pset_CableSegmentOccurrence 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. IfcCableSegment IfcCableSegment DesignAmbientTemperature The highest and lowest local ambient temperature likely to be encountered. Design Ambient Temperature UserCorrectionFactor An arbitrary correction factor that may be applied by the user. User Correction Factor NumberOfParallelCircuits Number of parallel circuits. Number Of Parallel Circuits InstallationMethod 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. Installation Method InstallationMethodFlagEnum Special installation conditions relating to particular types of installation based on IEC60364-5-52:2001 reference installation methods C and D. INDUCT INSOIL ONWALL BELOWCEILING OTHER NOTKNOWN UNSET INDUCT In Duct INSOIL In Soil ONWALL On Wall BELOWCEILING Below Ceiling OTHER (other) Value is not listed. NOTKNOWN (unknown) Value is unknown. UNSET (unset) Value has not been specified. Installation Method Flag Enum DistanceBetweenParallelCircuits Distance measured between parallel circuits. Distance Between Parallel Circuits SoilConductivity 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. Soil Conductivity CarrierStackNumber 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). Carrier Stack Number MountingMethod 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. PERFORATEDTRAY LADDER OTHER NOTKNOWN UNSET PERFORATEDTRAY Perforated Tray LADDER Ladder OTHER (other) Value is not listed. NOTKNOWN (unknown) Value is unknown. UNSET (unset) Value has not been specified. Mounting Method IsHorizontalCable Indication of whether the cable occurrences are mounted horizontally (= TRUE) or vertically (= FALSE). Is Horizontal Cable IsMountedFlatCable Indication of whether the cable occurrences are mounted flat (= TRUE) or in a trefoil pattern (= FALSE). Is Mounted Flat Cable CurrentCarryingCapasity 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. Current Carrying Capasity MaximumCableLength 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. Maximum Cable Length PowerLoss Total loss of power across this cable. Power Loss