Design of Overhead
Transmission and
Distribution
Lines using PLS-CADD
20 - 24 May 2024
Sandton
Johannesburg South Africa
Cost per Delegate
$ 1,500.00
Overview
A steady increase in population and their continuous reliability in advanced technology has an uphill demand of power with respect to time. The end users are demanding more power, so it is necessary to increase the transmission capacity of existing power links as well as build new high voltage power links. Our training course provides a high level of insight and knowledge to overhead line design, covering all aspects of the latest technologies involved – electrical, mechanical, structural and civil using state of the art transmission line design software PLS Suite which includes PLS CADD, PLS Tower, PLS Pole etc.
This course will teach how to use PLS-CADD on a transmission or distribution project from start to finish, including importing survey data, criteria development, structure design, conductor sagging and Plan & Profile drawing development and plotting.
Topics Covered
• Overview of the PLS Suite of Software
• Survey Data and Terrain modelling
• Engineering Design criteria
• Component libraries
• Clearance calculations
• Manual spotting and stringing
• Automatic spotting
• Structure calculations
• PLS-POLE and TOWER
• PLS-POLE/TOWER integration with PLS-CADD
• Concentrated loads e.g. aircraft warning spheres
• PLS-CADD drafting tools
• Creation of construction documentation
WHO SHOULD ATTEND
• Transmission line design engineers
• Structural engineers
• Consulting engineers
• Design and drafting technicians
• CAD technicians
• Surveyors
COURSE OUTLINE
Overview and Terrain Modeling
• PLS-CADD system overview
• Presentation of projects
• How to organize project files
• View commands, opening of windows, viewing of phases and sags
• Needed terrain data and surveying
• Prepare a terrain model
LiDAR Aerial Surveying
• How to use 3-dimensional survey data
• Building design models from LiDAR data
• Identifying clearance limits and potential for clearance upgrades
Conductor Design and Modeling
• Various conductor types
• Conductor properties: advantages and disadvantages
• Permanent deformation from overloading and creep
• Effects of high temperature on creep and strength reduction
• Conductor models in PLS-CADD
• Aeolian vibrations: how to limit
• Temperature vs. ampacity
• Line thermal rating
Design Criteria
• Weather data
• Wind and ice loads: gust response factors, etc.
• Conductor limits of use
• Conditions for automatic sagging
• Structure loads and safety factors
• Conditions for checking clearances
• PLS-CADD/LITE: simplified PLS-CADD module
Structures Modeling by Allowable Spans
• Available structure models - allowable spans method - full analysis method
• Material lists, parts lists
• Create and edit allowable span structures
Interactive Line Design
• Spot structures interactively
• String and sag conductors: demonstrate
• Check clearances: vertical, between phases, galloping, etc.
• Check overall design efficiency
Generate Construction Documents
• Plan-and-profile sheets, staking lists, stringing charts, offset clipping, etc.
Modeling of Poles and Frames by Analysis
• Overview of structure programs; PLS-POLE
• Create and edit wood, steel and concrete poles/frames
• Determining allowable spans of existing structure designs
Modeling Existing Lines, Assessment, and Refurbishing
• Modeling existing lines and structures
• Assessment, reconductoring, refurbishing, etc.
• Joint use issues and modeling
• Links to SAPS
Automatic Optimum Spotting
• Theory and examples
Checking Detailed Tower Models
• Brief overview of TOWER program capabilities
• Linkage between PLS-CADD and TOWER
• Checking and modifying older tower designs
End of the Workshop
For Training arrangements call us on the detail below
TANZANIA: +255 749 50 26 78
SOUTH AFRICA: +27 694 31 79 73
KENYA: +255 749 50 26 78
DUBAI: +27 694 31 79 73
