The Secret Revealed: How Engineers Really Design Overhead Power Lines
When most people look at transmission and distribution lines, they see a series of tall towers or poles with wires strung between them. But engineers? They see art. There’s beauty in the symmetry of structures and the geometric alignment of lines. Beyond the technical design, engineers appreciate how these systems interact with their surroundings—crossing rugged terrain, sweeping across open landscapes, or weaving through urban skylines. These lines don’t just serve a purpose, they follow the land in a way that blends engineering with aesthetics. And behind this work of art lies a powerful industry tool that has been revolutionizing overhead power line design for over 40 years: Bentley’s PLS-CADD. If you’ve ever wondered how engineers decide where to place each tower, how to minimize cost without compromising safety, or how to make the grid more resilient, here’s your peek behind the curtain. Spoiler alert: it’s not magic. It’s math, modeling, and one seriously powerful piece of software. How PLS-CADD optimizes overhead line design PLS-CADD (Power Line Systems – Computer Aided Design and Drafting) is the industry standard for overhead line design. But the real artistry comes from its Line Optimization feature within its Optimum Spotting module. Think of it as