Tension Transmission Tower installations are vital for grid stability in challenging terrains where power lines must navigate sharp angles or significant elevation shifts. They are primarily deployed at the start and end of transmission lines as dead-end structures and at every major change in direction to anchor the conductor tension. Additionally, these towers are indispensable for long-span crossings over rivers, valleys, or highways, where the mechanical stress on the cables is significantly higher than on standard straight-line sections.
Product Features
Unlike suspension towers that support conductors along a straight path, tension transmission towers are heavily reinforced to withstand the immense mechanical stresses caused by the line's tension, acting as anchor points for sections of the transmission line.
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. |
Purpose And Location
Directional Changes
They are placed at turning points in the transmission line's path, where the angle of deviation is greater than a certain degree.
Line Terminations
They are also used at the end of a transmission line or to anchor it to a specific point, preventing excessive movement.
Long Spans
Tension towers are installed where long distances create high tensile forces in the conductors.
Structural Features
Reinforced Structure
These towers are more robust and heavily reinforced than standard suspension towers to handle the large mechanical loads and tension.
Insulator Configuration
They often use horizontal or V-shaped insulator strings to manage the increased mechanical stress.
Load Break
By breaking the continuous mechanical load path, tension towers help to isolate sections of the transmission line, which is vital for maintenance and protecting the line from progressive collapse in case of an accident.
Frequently Asked Questions (FAQ)
Q: How do we guarantee product quality?
A: Our products are manufactured in strict accordance with industry standards and come with quality inspection reports.
Q: What are your payment options?
A: We accept bank transfers, letters of credit, and some third-party payment platforms. Custom products generally require an advance payment.
Q: Do you provide after-sales service?
A: All our products come with after-sales service. Our professional after-sales service team provides one-on-one support and promptly resolves any issues encountered during use.
Our Factory
Hebei Yifeng Steel Structure Co., Ltd. operates a specialized production base equipped with 12 automated CNC angle steel processing lines that ensure a hole alignment accuracy within 0.5mm for perfect on-site assembly. As a direct manufacturer, we offer wholesale clients full customization of tower heights and load capacities, using high-tensile steel designed to resist wind speeds of up to 200km/h and heavy ice loading. Our integrated supply chain-from technical structural design to in-house hot-dip galvanizing-guarantees competitive factory-direct pricing and rapid production cycles for large-scale national utility projects.
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