High Voltage (HV) Transmission Towers are lattice steel structures carrying overhead conductors at voltages from 52kV (sub-transmission) to 300kV (extra-high voltage). These towers form the critical infrastructure for bulk power transfer across regional and national grids, with typical spans of 300-600m between structures.
| Parameter | 52-132kV | 230-300kV |
|---|---|---|
| Height Range | 20-40m | 30-55m |
| Base Width | 4-8m | 8-15m |
| Phase Spacing | 3-5m | 7-12m |
| Conductor Bundles | Single | Twin/Triple |
| Insulator Length | 1-1.8m | 2-3.5m |
| Typical Current | 600-1,200A | 1,500-3,000A |
| Right-of-Way Width | 30-50m | 50-80m |
| Type | Configuration | Voltage Range | Span |
|---|---|---|---|
| Tangent | Straight-line support | All voltages | 300-500m |
| Angle | 0°-90° line deviation | ≤230kV | 250-400m |
| Dead-End | Terminal/tension points | All voltages | N/A |
| Transposition | Phase rotation towers | ≥132kV | 5-10km int. |
Steel: ASTM A572 Gr. 50 (yield: 345 MPa)
Galvanization: Hot-dip zinc coating (85μm min.) per ISO 1461
Connections: M24-M36 high-strength bolts (ASTM A325)
Corrosion Control: Sacrificial anodes in coastal areas
| Voltage | Phase-to-Ground | Phase-to-Phase | Live-to-Tower |
|---|---|---|---|
| 66kV | 0.9m | 1.2m | 0.6m |
| 132kV | 1.3m | 1.8m | 0.9m |
| 230kV | 2.0m | 3.0m | 1.5m |
| 300kV | 2.7m | 4.0m | 2.1m |
| *Based on IEC 61936 / ANSI C2 standards* |
Product Details
| Soil Type | Foundation Type | Depth | Load Capacity |
|---|---|---|---|
| Rock | Rock anchors | 3-6m | 500 kN/leg |
| Firm Soil | Pad-footing | 2-4m | 300 kN/leg |
| Soft Soil | Pile group (4-8 piles) | 8-15m | 800 kN/tower |
| Permafrost | Thermosyphon protected | 4-6m | 200 kN/leg |
| Voltage | Typical Design | Regions |
|---|---|---|
| 66kV | Single-circuit delta | UK, Australia, India |
| 132kV | Double-circuit horizontal | Europe, Africa |
| 230kV | Double-circuit barrel | Americas, Middle East |
| 300kV | Triple-circuit delta | Brazil, Japan, Scandinavia |
Package Reference
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XH Tower Co., Ltd: Building Global Connectivity with Excellence
Established in 2007 and headquartered in Qingdao, Shandong Province, China XH TOWER Co., Ltd is a leading manufacturer specializing in high-quality telecommunication towers, transmission towers, and steel tower components. With over 17 years of industry expertise, we are committed to delivering innovative engineering solutions and superior products that meet global standards, empowering infrastructure development across the world.
