Tubular steel transmission structures

This paper shows that through the use of tubular steel products, transmission lines can be built economically when comparing this product against other products such as wood, lattice steel, tapered and other formed steel poles. H-frame, single and double circuit, single pole and Y-guyed structure designs has shown that the design of the tubular structure at all transmission voltage levels has proved itself to be a very good economical option, and a high quality transmission line design.