Angular Steel Lattice Transmission Tower
High-voltage infrastructure engineered for 220kV-500kV transmission lines. Hot-dip galvanized structural steel with IEC 60652 compliance for tropical cyclone zones.
Our angular steel lattice towers are engineered for heavy ice loading and extreme wind zones (45m/s+ design wind speed). Constructed from Q345B high-strength structural steel with Q235B secondary members, these towers provide exceptional reliability for critical transmission infrastructure in tropical and subtropical environments.
Technical Specifications
| Member Type | Size Range | Grade | Yield Strength | Ultimate Tensile |
|---|---|---|---|---|
| Main Leg | L90×90×8 to L200×200×20 | Q345B | ≥345 MPa | ≥470 MPa |
| Diagonal Brace | L63×63×6 to L140×140×12 | Q345B | ≥345 MPa | ≥470 MPa |
| Horizontal Brace | L50×50×5 to L90×90×8 | Q235B | ≥235 MPa | ≥375 MPa |
| Redundant Member | L45×45×4 to L63×63×6 | Q235B | ≥235 MPa | ≥375 MPa |
Electrical clearance diagram showing conductor spacing and ground clearance standards per IEC 60826
| Condition | Transverse Load | Longitudinal Load | Vertical Load | Torsional Moment |
|---|---|---|---|---|
| Normal | 2.5 kN/m² | 1.5 kN/m² | 4.0 kN/m² | 15 kN·m |
| Broken Wire | 1.8 kN/m² | 3.2 kN/m² | 3.0 kN/m² | 25 kN·m |
| Emergency | 3.5 kN/m² | 2.8 kN/m² | 5.5 kN/m² | 40 kN·m |
| Parameter | Rating | Standard Reference |
|---|---|---|
| Corrosion Class | C4/C5 (High/Marine) | ISO 9223 |
| Temperature Range | -40°C to +50°C | IEC 60652 |
| Seismic Zone | Zone III & IV compatible | GB 50011 |
| Ice Loading | Up to 20mm radial thickness | GB/T 2694 |
Manufacturing & Quality Assurance
State-of-the-art production facilities with comprehensive quality control
Xytower operates a 1000-employee manufacturing complex with 23 years of operational excellence. As an approved supplier for China Southern Power Grid and State Grid projects, we maintain rigorous quality standards backed by ISO 9001:2015, ISO 14001:2015, and ISO 45001 certifications. Every tower undergoes 100% ultrasonic weld testing with third-party inspection by SGS/Bureau Veritas available upon request.
Proven Performance in Southeast Asia
Deployed across challenging tropical environments with validated cyclone resistance
East Coast Transmission Reinforcement
220kV double-circuit • 45m/s wind design • 2019
Typhoon resistance validated in Category 4 conditions. 47 towers deployed along 85km coastal corridor with zero structural failures.
Rural Electrification Project
Monopole & lattice mix • 110kV • 2021
Hybrid solution combining 32 lattice towers with monopole sections for challenging terrain access. Completed ahead of schedule.
PTT Group Industrial Feeder
500kV heavy-duty lattice • 2022
Heavy-loading design for petrochemical facility feed. 18 towers with specialized anti-corrosion coating for coastal industrial environment.
Customization & Accessories
Optional enhancements for safety, compliance, and site-specific requirements
Anti-Climbing Devices
Spiked collars and anti-climb barriers for security
Aviation Lighting Mounts
ICAO compliant obstruction light brackets
Grounding Points
Copper busbar integration for lightning protection
Climbing Safety Rails
Internal or external ladder with fall protection
Bird Guards
Insulator covers and anti-perching devices
Camouflage Painting
Custom colors for scenic area integration
Antenna Mounts
Communication equipment integration brackets
Nameplates
Stainless steel identification tags
Documentation Center
Technical resources for engineering evaluation and project planning