EL05
Course Contents
Module 1 - Overview of Overhead Lines and Foundations
Key Topics
- Introduction
- Overhead Lines versus Underground Cables
- Support Structures
- Steel Lattice Towers
- Wooden Poles
- Overhead Line Foundations
- Soil Investigation
- Foundation Types
- Foundation Design
- Site Works
Module 2 - Survey, Structures, Towers & Poles
Key Topics
- Survey Equipment Requirements
- Aerial Survey
- Ground Survey
- Ground Soil Conditions
- Wayleaves, Access, and Terrain Optimisation
- Detailed Line Survey and Profile
- Computer-aided Techniques
- Structures, Towers & Poles
- Environmental Conditions
- Typical Parameters
- Effect on Tower or Support Design
- Conductor Loads
- Substation Gantry Worked Structure Design
- Lattice Steel Tower Design Considerations
- Tower Testing
- Pole and Tower Types
- Pole Structure
- Tower Structure
Module 3 - Conductors & Lightning
Key Topics
- Conductors
- Environmental Considerations
- Conductor Selection
- Types of Conductor
- Aerial bundled conductor
- Conductor Breaking Strength
- Bi-Metal Connectors
- Lightning
- Insulator arcing horn coordination.
- Surge Divertors
- Load-Flow Constraints in Power Networks
Module 4 - Line Rating & Design Span
Key Topics
- Calculated Ratings
- Power Carrying Capacity
- Corona Discharge Line Rating Calculation
- Worked Example and Exercise
- Design Span
- Clearances and Loadings
- Distribution Voltage Clearances
- Transmission Voltage Level Clearances
- Overhead Line Clearance Calculations
- Worked Example and Exercise
Module 5 - Line Fittings, Impedance & Maintenance
Key Topics
- Overhead Line Fittings
- Aerodynamic Phenomena
- Suspension Clamps
- Sag Adjusters
- Other types of Fittings
- Overhead Line Impedance
- Inductive Reactance
- Capacitive Reactance
- Resistance
- Worked Example and Exercise
- Overhead Line Maintenance
