Objective – Composite braced line post insulators are commonly preferred for compact transmission lines. However, the working load capacity of traditional braced line posts is limited by standard core diameters of post insulators and conventional connection hardware. This paper explores methods to enhance load-bearing capabilities for high-strength applications by incorporating reinforced fitting hardware, larger post insulator core diameters, and triangulated insulated cross-arms.
Findings – Increasing the core diameter of composite post insulators to 110 – 130 mm and using reinforced hardware significantly enhance braced line post strength. Further improvements with triangulated insulated cross-arms enable higher load capacities, supporting up to 500 kV transmission, improving stability, reducing structures, and lowering construction costs by allowing longer span lengths.
Originality – This work introduces innovative enhancements to braced line post insulators by overcoming traditional limitations in core diameter and connection hardware. By employing reinforced fittings and larger core diameters, along with triangulated insulated cross-arms, the proposed designs significantly enhance mechanical strength, enabling compact transmission up to 500 kV and reducing infrastructure costs.