Short answer
By material and structure, OCS poles fall into four types: H-section steel poles (hot-rolled H-section, solid web, high strength in a small footprint, the mainstream choice for high-speed running lines and stations, built to GB/T 25020.1-2025); lattice steel poles (angle sections assembled into a lattice section, high capacity, mostly used in stations and as anchor poles); prestressed concrete poles (ring-section or transverse-web type, low cost and maintenance-free, common on conventional lines, built to TB/T 2286-2020); and aluminium alloy emergency poles and towers (lightweight and quick to erect, used for accident repair and temporary support).
Selection points
Select by pole capacity (vertical load plus bending moment), by structure gauge, by foundation and by corrosion environment. High-speed running lines favour H-section steel poles, large-span station areas use lattice or steel poles, and conventional and freight lines can use concrete poles; in coastal high-salt-spray areas check coating thickness and corrosion class. Hot-dip galvanising is the default protection, and the H-section steel feedstock follows GB/T 34199-2017.
Related products
H-section steel poles | Lattice steel poles | Prestressed concrete poles | Aluminium alloy emergency towers