Overhead Line Design with the Aid of PLS-CADD
Case Study
Delivering precision, efficiency, and compliance in complex terrain through advanced engineering tools
Introduction
At Power Structure Solutions (PSS), we know that critical infrastructure requires more than just technical expertise, it requires designs that are reliable, efficient, and future-ready. In this case study, we showcase how our team used PLS-CADD, the industry’s benchmark software for overhead line design, to engineer a transmission line across highly diverse terrain. The outcome highlights how advanced digital modeling, coupled with engineering excellence, ensures compliance, reduces costs, and delivers dependable solutions for our clients.
Project Overview
The assignment involved designing an overhead transmission line spanning flatlands, farmland, mountainous areas, and urban corridors. Key objectives included:
- Meeting all structural and clearance requirements.
- Optimizing material usage without compromising safety.
- Ensuring full compliance with AS/NZS 7000:2016, AS/NZS 1170.2:2021, or NESC standards.
Success required an approach that combined precision engineering with cost efficiency, all while managing the expectations of multiple stakeholders.
Engineering Approach
Using PLS-CADD, our engineers created an accurate digital ground model by importing LiDAR and conventional survey data. This enabled:
- Precise line alignment and vertical profiles.
- Evaluation of multiple conductor types for mechanical and electrical performance.
- Optimized structure selection based on strength, loading conditions, and project constraints.
Through simulation, we assessed sag, tension, and blowout across varied weather scenarios, ensuring that safety margins and clearance requirements were consistently met. Additional tools such as PLS-POLE, AutoCAD, and L-Pile enhanced the process by validating structural and foundation designs.
Outcomes and Benefits
- Optimized design efficiency: Fewer structures were required thanks to smart pole placement and optimized spans.
- Enhanced reliability: The final design strengthened system performance while minimizing the risks of overdesign and costly rework.
- Cost savings: Intelligent use of materials reduced capital expenditure without compromising safety or quality.
- Streamlined collaboration: The PLS-CADD model became a shared reference for all disciplines, improving coordination and accelerating project delivery.
Conclusion
This project demonstrates the value of combining advanced engineering software with PSS’s deep technical expertise. By leveraging PLS-CADD, we provided a solution that overcame terrain complexity, optimized costs, and ensured compliance with stringent industry standards.
At PSS, we design with precision, deliver with reliability, and power the future with innovation.
Ready to discuss how we can support your next transmission or substation project? Contact us today at www.psseng.com/contact and let’s build the future of energy together.