PLS-CADD Software for High-Voltage Transmission Line Design The PLS-CADD software is employed for the design of high-voltage transmission lines and is undoubtedly the most powerful software in this domain, featuring multiple subsets. Developed by Power Line System since 1984, this software specializes in designing power transmission lines. The software comprises six subsets:

1. PLS-CADD
2. PLS-POLE
3. PLS-SAPS
4. PLS-TOWER
5. PLS-CAISSON
6. PLS-SHELL

PLS-CADD: PLS-CADD stands out as the most powerful and practical software available for designing and simulating high-voltage transmission lines. With an excellent graphical user interface and providing all necessary tools for design and analysis, it can be confidently stated that this software is among the best in the field. PLS-POLE: PLS-POLE is used for the analysis and design of structures made from various materials such as wood, wood-covered, steel, concrete, or Fiber-Reinforced Polymer (FRP) composite poles. PLS-SAPS: PLS-SAPS is employed for the structural analysis of power and communication system structures. It can be used as a plugin to add sag-tension elements to the standard PLS-CADD version. This software is capable of examining structural designs under various loads and calculating the maximum allowable wind and weight values. PLS-TOWER: PLS-TOWER is used for the analysis, design, and optimization of steel towers. It can analyze linear and nonlinear behavior of unlimited non-prismatic elements. This software enables the automatic design of bandwidth. PLS-CAISSON: PLS-CAISSON is utilized for the analysis and design of reinforced concrete foundations resistant to bending and embedded direct support columns. It is also used for the analysis and design of laterally loaded piles and caissons in layered soil systems. PLS-SHELL: PLS-SHELL is a Windows renderer for PLS-Pole, Tower, and PLT files. This plugin can display small images and file previews directly in the Windows Explorer. This software is capable of providing the best, most comprehensive designs for the implementation of transmission lines at the required voltage levels, while precisely adhering to all international standards. Among its other features, it optimizes existing designs during the execution of high-voltage transmission lines. Companies involved in transmission line construction, technical consulting, manufacturing of transmission line equipment, as well as regional power companies, benefit the most from this software. PLS-CADD Software Capabilities:

• Designing power lines considering cable, wind, ice, and temperature conditions
• Modeling tower structure strength and balancing suspension insulators
• Three-dimensional modeling of all existing ground obstacles against the line
• Optimizing tower placements for the lowest implementation cost
• Selecting the most efficient tower structure using interactive diagrams
• Accounting for labor costs in the line structure expenses
• Structural modeling and stresses, such as Sag-tension
• Design for restricted areas, high-cost areas, based on location and structure needs
• Multiple choices for modeling conductor behavior at high temperatures
• Different structural strength modeling methods, such as element breakdown analysis
• Automatic calculation of line structure and labor costs
• Adapting custom criteria with line units for calculating stress and Sag tension, including initial values after loading, and tree placement around transmission lines
• Calculating vertical and lateral distances from obstacles and ground elevations
• Estimating line structure capabilities using the allowable wind speed and Span measurement methods
• Integration with SAPS and SAGSEC software for comprehensive Span and Sag tension analysis
• Creating layouts and profile sheets of transmission lines and exporting to CAD
• Printing results and maps using printers and plotters
• Graphical and three-dimensional visualization capabilities, including ground maps, aerial maps, laser maps (by drone), digital program slices, line cuts, and other data in ASCLL format
• Simulation of towers using PLS-POLE for the analysis and design of line structures using wood, steel, or unified aluminum pole models
• Design and analysis of steel beams for telecommunications purposes
• Connectivity with Oracle, DB2, SQL databases using ODBC
• Input of ground information from GPS, aerial photos, and mapping equipment