High Tension Wire Tower units are fabricated from Q345B high-tensile steel, offering a yield strength of 345 MPa to withstand the extreme mechanical tension of long-span power lines. Every structural member is hot-dip galvanized to a minimum thickness of 86μm (as per ISO 1461), ensuring a corrosion-free lifespan exceeding 50 years even in high-salinity or industrial environments.
Parameter
| Parameter Category | Key Indicators | Remark |
| Material | Q235B (standard), Q355B (medium-high pressure), Q420B (extra-high pressure) | High-strength steel is used in areas subjected to heavy loads. |
| Angle steel specifications | Double-leg/Single-leg angles: L50×5 to L200×20; Large sizes: L200×20 to L400×30 | Selected based on load capacity, ultra-high voltage lines often use double conductors. |
| Connection method | Bolted connections are primarily used, with M16/M20/M24 bolts; 8.8 grade high-strength bolts (for extra-high voltage applications). | Torque shall be in accordance with GB 50233-2014. |
| Node requirements | Bolt hole spacing deviation ≤ ±1.5mm; contact surfaces fit well with no noticeable gaps. |
Primary Utility Applications
The High Tension Wire Tower is the core infrastructure for several critical energy sectors:
Ultra-High Voltage (UHV) Lines: Supporting 500kV to 1000kV corridors that transport electricity over 1,000 km with minimal transmission loss.
Inter-Regional Power Grids: Connecting national power plants to regional substations across varied terrains, including mountains and wetlands.
Industrial Feeders: Providing dedicated high-capacity power lines for heavy industrial complexes, mining sites, and smelting plants.
River and Highway Crossings: Engineered with reinforced tension sections to handle the extra mechanical stress of extra-long spans over 500 meters.
Types Of Towers
Suspension Towers
Used for straight-line sections of the power line.
Terminal Towers
Also known as "dead-end" towers, they are used at the ends of lines or where the line changes direction.
Tension Towers
Used to maintain tension on the conductors.
Transposition Towers
Used to change the relative positions of the phase conductors to reduce electrical interference.
Frequently Asked Questions (FAQ)
1. How do you ensure the towers handle heavy ice and wind loads?
Our engineering team uses specific meteorological data from your project site to calculate the required steel thickness and lattice density. We design the towers to resist specified wind pressures (up to 0.85kN/m²) and ice thicknesses of 10mm to 30mm to prevent structural fatigue during extreme winter conditions.
2. What is the logistical advantage of your lattice design?
The modular angle steel sections are designed to be nested, allowing for dense packing in standard shipping containers. This reduces ocean freight costs by nearly 30% compared to tubular poles and simplifies transport to remote sites where road access is restricted.
3. Can these towers be used for multiple circuits?
Yes. We can customize the cross-arm configuration to support double-circuit or quadruple-circuit lines on a single tower footprint. This allows utility companies to increase power capacity within existing right-of-way corridors, optimizing land use.
Our Factory
Hebei Yifeng Steel Structure Co., Ltd. operates a specialized facility for high-volume steel tower production for international power grids. Our factory features 12 automated CNC angle steel production lines that deliver a hole positioning accuracy of ±0.5mm, ensuring that every bolt aligns perfectly during field assembly. We provide full customization, allowing wholesale clients to specify steel grades, tower heights, and circuit configurations based on local wind speeds (up to 200km/h) and ice loading data. By sourcing raw steel directly and maintaining in-house galvanizing baths, we provide a stable supply chain and factory-direct pricing for large-scale energy tenders.
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