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Advanced Topics in Rating of Electric Power Cables
Tutorial at the Fall ICC Meeting in St. Petersburg, FL. November 1998
Conducted by Dr. George Anders, Ontario Hydro Technologies and Dr. Mohammed Chaaban, IREQ.
1. Conductor construction
2. Insulation type
3. Sheath material and bonding arrangement
4. Armor material and construction
5. Cable laying conditions-underground installations
5.1 Non-isothermal earth surface
5.2 Drying out of soil in the vicinity of loaded power cables
5.3 Cables crossing unfavorable thermal environment (streets, heat pipes, other circuits, etc.)
6. Cables in air
6.1 Cables on riser poles
6.2 Cables in trays
6.3 Cables in tunnels and shafts
7. Economic selection of cable sizes
8. Real-time rating of electric power cables
1. Introduction
1.1 Why the finite element method?
1.2 Field of application
1.3 Information obtained from the finite element method
2. Overview of the finite element method
3. Practical considerations when applying the finite element method for cable rating calculations
3.1 Selection of the region to be discretized
3.2 Element sizes
3.3 Boundary conditions
3.4 Representation of cable losses
3.5 Selection of a time step
4. Examples of application of the finite element method for cable rating calculations
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