330kV Transmission Line Angle Steel Tower

Qingdao Anbang New Energy's 330kV transmission line angle steel tower is a high-voltage transmission core equipment independently developed and manufactured by the company, based on China's power construction needs and leveraging the production advantages of its own factory.

This tower is made of high-quality angle steel Q235B, Q345B, and Q420B, processed through precise cutting, welding, hot-dip galvanization, and other strict procedures.

It is a lattice self-supporting tower, with components having single or combined angle steel cross-sections, featuring a compact structure, clear force distribution, and transparent load transfer.

As the core bearing facility of the 330kV transmission line, it has advantages including high strength, high stability, wind and earthquake resistance, corrosion resistance, and long service life. It is suitable for various complex terrains such as plains, hills, mountains, and coastal areas.

It meets the core requirements of conductor installation and insulator suspension for 330kV high-voltage transmission lines, strictly following the "Standards for Design of Overhead Transmission Line Towers," and provides a safe, reliable, economical, and efficient comprehensive solution for national and international power grids and regional transmission projects, supporting efficient cross-regional power resource transmission.

Parameter Specifications

Model Selection Recommendations

30-40m Tower (Dry Type) Applicable scenarios

Plains areas, suburban 330kV transmission lines, substation outgoing lines, conventional transmission sections with a horizontal span of 200-250m.

Recommended reasons: Compact structure, small footprint, economical cost, clear stress distribution, convenient installation, no need for large construction equipment, suitable for areas with moderate population density and flat terrain. It is the preferred model for conventional sections of 330kV transmission lines, with reasonable steel usage and outstanding cost performance.

40-50m Tower (Cup Type) Applicable scenarios

Hilly areas, medium-span transmission lines (horizontal span 250-300m), sections with few corridor width constraints, taking into account signal interference prevention requirements.

Recommended reasons: Conductors are arranged in three-phase horizontal layout, reasonably stressed, high rigidity, effectively ensuring safe clearance for 330kV line ground wires, strong wind resistance, suitable for mildly undulating terrain and projects requiring controlled transmission line corridor width, easy to install and maintain.

50-70m Tower (Portal/Strengthened Type) Applicable scenarios

Mountainous areas, remote regions, coastal high-wind zones, long-span transmission lines (horizontal span 300-400m), and special sections crossing existing lines.

Recommended reasons: Uses strengthened angle steel splicing, high strength, strong stability, can withstand strong winds, heavy snow, salt spray, and other harsh weather conditions; foundation stress is reasonable, suitable for installation in complex terrain, effectively addressing load bearing and disaster resistance issues for 330kV lines in mountains and coastal areas. Some models can be used as crossing towers.

Customized Towers Applicable scenarios

Special terrain (islands, steep slopes, swamps), special loads (multi-equipment integration, large-span crossings), special weather conditions (heavy ice regions, strong typhoon areas), and special appearance (landscape integration) requirements for 330kV transmission line projects.

Recommended reasons: Qingdao Anbang New Energy's own factory can customize 330kV transmission line angle steel tower height, structural form, material, anti-corrosion standards, and load-bearing capacity according to the project drawings, terrain survey reports, and meteorological data provided by the customer, offering one-on-one design, production, and installation guidance in a one-stop service, meeting various special project requirements.

Real Cases

Gansu Hexi Corridor 330kV Transmission Line Angle Steel Tower Project

Project Overview: Supplied 12 sets of 50-meter portal towers for the Gansu Hexi Corridor 330kV transmission line project, adapted to local arid, windy, and icing weather conditions, with a horizontal bay distance of 300m. Conductor type: 2×LGJ400/35, ground wire type: JLB20A-120.

Implementation Effect: The towers use Q345B high-quality angle steel and enhanced anti-corrosion processes, successfully withstanding local winds of 29m/s and 10mm ice loads. Installation time was reduced by 25%, and the towers have operated fault-free to date, effectively alleviating local line corridor congestion, ensuring regional power transmission stability, and receiving high praise from the State Grid Gansu Electric Power Company.

Shandong Qingdao 330kV Substation Outgoing Line Angle Steel Tower Project

Project Overview: Provided 8 sets of 35-meter gantry-type towers for the outgoing line project of a 330kV substation in Qingdao, connecting the substation with the main line. Adapted to suburban terrain with limited land and integrated surrounding environment.

Implementation Effect: The product has a compact structure and convenient installation, strictly controlling land occupation. Verticality and load-bearing capacity meet design standards, perfectly fitting the transmission needs at the substation’s outgoing end, effectively ensuring stable output of 330kV high-voltage power, supporting the upgrade of Qingdao’s regional power grid, and passing the acceptance by the State Grid.

Shaanxi Weinan 330kV Transmission Line Reconstruction Angle Steel Tower Project

Project Overview: Participated in the upgrade and height enhancement project of the 330kV Luoling line towers in Weinan, Shaanxi, supplying 9 sets of 40-meter reinforced 330kV transmission line angle steel towers (including 4 strain towers), replacing old cement double poles, and resolving issues of insufficient safety distance and weak resistance to natural disasters in the existing lines.

Implementation Effect: Thanks to high strength and stability, they were successfully installed during continuous rainy weather, showing outstanding capability to withstand heavy rain and strong winds. After reconstruction, the line’s operational stability greatly improved, effectively preventing large-scale power outages, providing reliable support for power supply to the Lingbao converter station in Henan from the Weinan area, and successfully completing the 10-day intensive reconstruction task.