|
Variable |
Description |
Units |
|
# Cond |
Number of conductors (not cables) at position |
|
|
1/c OD |
For 3/c Cable, outside diameter of 1/c portion |
Inches |
|
1/c Spacing |
Equivalent phase spacing for 1/c cables at different
positions |
Inches |
|
3/c Configuration |
Type of 3/c cable, round or sector |
|
|
Actual Fill % |
Actual conduit fill |
% |
|
AL lay F |
Lay factor for aluminum conductor |
|
|
AL Res |
Aluminum electrical resistivity |
Cir mils ohms/ft |
|
Allowable Fill % |
Allowable conduit fill according to limits set by user or
NEC defaults |
% |
|
Amps |
Calculated or specified current on a per conductor basis |
Amperes |
|
Cable Lib |
Cable data library descriptor |
|
|
Cable OD |
Cable overall outside diameter |
Inches |
|
Cable Size |
Cable size designation |
|
|
Cable Type |
Cable type,1/c or 3/c |
|
|
Concrete thermal resistivity (RHO) |
Concrete thermal resistivity |
Deg C-cm/watt |
|
Cond. |
Conductor Material, Copper or Aluminum |
|
|
Conductor Diameter |
Conductor diameter |
Inches |
|
Config |
Cable configuration, non-applicable, equilateral, cradled or
mixed |
|
|
CU lay F |
Lay factor for copper conductor |
|
|
CU Res |
Copper electrical resistivity |
Cir mils ohms/ft |
|
Current Mag |
Magnitude of current used in load flow calculations |
Amps |
|
Current Deg |
Phase angle of current used in load flow calculations |
Degrees |
|
Dissipation Factor |
Insulation dissipation factor, (DF), overall DF = DF x e^(DF
Exp x Temp) |
|
|
Dissipation Factor Exponent |
Insulation dissipation factor exponent, overall DF = DF x
e^(DF Exp x Temp) |
|
|
Distance from earth's surface to origin |
Vertical distance from earth's surface to origin of
coordinate system |
Inches |
|
Dist. top of ductbank to earth's surface |
Vertical distance from top of ductbank concrete envelope to
earth's surface |
Inches |
|
Dtd |
Increment of conductor temperature rise due to dielectric
losses |
Deg C |
|
Duct ID |
Duct Inner diameter |
Inches |
|
Duct Library |
Duct data library descriptor |
|
|
Duct RHO |
Duct material thermal resistivity |
Deg C-cm/watt |
|
Duct Thickness |
Duct wall thickness |
Inches |
|
Duct Type |
Whether duct material is Non-magnetic, Steel or Iron |
|
|
Ductbank Geometric Factor |
Calculated ductbank geometric factor |
|
|
Ductbank Height |
Height of ductbank concrete envelope |
Inches |
|
Ductbank Width |
Width of ductbank concrete envelope |
Inches |
|
dx |
Ficticious diameter at which the effect of loss factor
commences |
Inches |
|
Earth temperature |
Earth ambient temperature |
Deg C |
|
Earth thermal resistivity (RHO) |
Earth thermal resistivity |
Deg C-cm/watt |
|
GF1 |
Geometric factor for 3/c cable applying to insulation
resistance |
|
|
GF2 |
Geometric factor for 3/c cable applying to dielectric loss |
|