Cable Thermal Analysis Software | IEC 60287 | Cable Thermal Capacity Calculation

Cable Thermal Analysis

Design Operation Expansion

The Cable Thermal Analysis module helps engineers to design cable systems to operate to their maximum potential while providing a secure and reliable operation.

The advanced graphical interface allows for design of cable raceway systems to meet the existing and future needs by using precise calculations to determine the required cable sizes, their physical capabilities, and maximum derated ampacity. In addition, transient temperature analysis computes temperature profiles for cable currents, reducing the risk of damage to cable systems under emergency conditions.

Key Features

Cable Steady-State Temperature Calculation using:

Neher-McGrath Method
IEC 60287 Method

Cable Transient Temperature Calculation
Cable Ampacity Calculation using:

Cable Sizing
UG Raceway Rule Book

Graphical user interface
Graphical manipulation of raceways, cables, conduits, etc.
Drag & drop cables from one-line diagrams
Cables of different sizes in the same raceway
Separate phases into different conduits or locations
Unsymmetrical positioning of raceways
Transient calculations use a dynamic thermal circuit model
Option to fix cable size and/or loading
Grounded/ungrounded shielding
Calculate thermal R, dielectric losses, Yc, Ys, etc.
User-defined armor cables
Unbalanced load factors
Multiple duct banks & direct-buried conduits
Place raceways in multiple cross-sections

Multiple raceways
Multiple external heat sources
Optimization of new cables in existing raceways
Cross-sectional analysis
Duct banks & direct buried raceways
Integrated with cables in one-line diagrams
Integrated with load flow results
Integrated with cable pulling analysis

Transient temperature calculations based on load profile
Option to display multiple cables simultaneously
Zoom to any detail level
Export data to Microsoft Excel
Line, bar, 3-D, & scatter plots
Customize text & axes
Flag critical & marginal cable temperatures
Reports all physical & calculated data
Use Crystal Reports for full color, customizable reports
Export output reports to your favorite word processor
Graphical display of raceway results

The cable ampacity calculation and cable sizing are based on the NEC accepted Neher-McGrath method and IEC 60287 standard for steady-state temperature calculation. The transient temperature calculation is based on a dynamic thermal circuit model. All of these calculations can handle multi-raceway systems and consider the effect of heat generated by neighboring cables and external heat sources.

Standards / Method	Title
Neher-McGrath	The Calculation of the Temperature Rise and Load Capability of Cable Systems
IEC 60287-1-1 Ed. 1.2 b:2001	Electric cables - Calculation of the current rating - Part 1-1: Current rating equations (100% load factor) and calculation of losses - General
IEC 60287-2-1 Ed. 1.1 b:2001	Electric cables - Calculation of the current rating - Part 2-1: Thermal resistance - Calculation of thermal resistance
IEC 60287-2-1 Amd.1 Ed. 1.0 b:2001	Amendment 1
IEC 60287-2-1 Amd.2, 2006-03	Amendment 2
IEC 60287-3-1 Ed. 1.1 b:1999	Electric cables - Calculation of the current rating - Part 3-1: Sections on operating conditions - Reference operating conditions and selection of cable type
IEC 60287-3-1 Amd.1 Ed. 1.0 b:1999	Amendment 1

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Cable Thermal Analysis

For Underground Cable Raceway Systems