10kV – 1000kV UHV Angle Steel Lattice Towers · Tubular Steel Poles · Substation Gantries · 100% Trial Assembly
Kingshark Energy exports extra-high-voltage (EHV) and ultra-high-voltage (UHV) transmission towers, tubular steel monopoles, and substation portal gantries manufactured in China’s major steel fabrication industrial hubs. We supply complete lattice steel towers from 10kV distribution to 1000kV UHV, designed to withstand catastrophic hurricane winds, heavy radial ice accretion, and seismic fault movements.
Our structural engineers utilize PLS-TOWER and BOCAD 3D computer-aided detailing. Every custom tower type undergoes a mandatory 100% full-scale trial pre-assembly test in horizontal or vertical jigs at the factory floor before hot-dip galvanizing, guaranteeing that bolt holes, gusset plates, and bracing diagonals match perfectly on site.
All structural steel components are hot-dip galvanized in massive molten zinc baths conforming to ASTM A123 and ISO 1461 (minimum 86µm to 120µm coating thickness), providing over 50 years of maintenance-free anti-corrosion life even in corrosive coastal marine environments.
Every product is drawing-verified and audited to IEEE / IEC international norms.
Self-supporting lattice steel structures manufactured from high-strength Q355, Q420, and Q460 structural steel. Optimized for steep mountainous terrain and long cross-country spans.
| Voltage Portfolio | 66kV, 110kV, 132kV, 230kV, 400kV, 500kV, 800kV |
| Tower Configurations | Suspension, Angle Tension, Terminal/Dead-End |
| Steel Grades | Q235B, Q355B, Q420B, Q460C (ASTM A572 Gr 50/60) |
| Galvanizing Quality | ASTM A123 / ISO 1461 (86 – 120 μm thickness) |
| Fasteners Included | Grade 6.8 / 8.8 Galvanized Bolts, Nuts, Spring Washers |
Compact footprint poles roll-formed from heavy structural steel plates with flanged or slip-joint splices. Ideal for constrained municipal road corridors and urban substation entries.
| Voltage Class | 10kV, 35kV, 66kV, 110kV, 138kV, 230kV |
| Height Range | 15 meters to 65 meters |
| Joint Connections | Slip-Joint (friction fit) or Flanged Bolted Joint |
| Arms & Crossarms | Tubular steel davit arms or curved aesthetic brackets |
| Design Codes | ASCE Manual 72, TIA-222, IEC 60652 |
Modular substation steel packages for supporting high-voltage overhead busbars, strain insulators, surge arresters, circuit breakers, and instrument transformers.
| Application | 33kV – 500kV AIS / Hybrid Outdoor Substations |
| Structure Types | Lattice Gantries, Tubular Pipe Gantries, Equipment Pedestals |
| Foundation Connections | Anchor Bolt Cages included with template plates |
| Earthquake Design | Seismic Zone 4 compliant (PGA up to 0.4g) |
| Standard Compliance | IEEE 605, AISC 360, ASTM A123 |
Comprehensive string assemblies matching tower conductor loads: composite silicone rubber or toughened glass disc insulators, armor rods, Stockbridge dampers, and corona rings.
| Insulator Types | Silicone Composite (HTV) or Toughened Glass Disc |
| Mechanical Failing Load | 70kN, 120kN, 160kN, 210kN, 300kN, 530kN |
| Hardware Material | Hot-Dip Galvanized Forged Steel (ASTM A153) |
| Corona Ring Design | Aluminum alloy tubular ring for voltages >= 220kV |
| Standards | IEC 61109, IEC 60383, IEC 61284 |
100% full-scale trial pre-assembly of prototype towers, tensile test of raw steel, zinc coating thickness measurement via magnetic gauge (> 86um), and bolt torque witness verification.
Components are marked with permanent steel stamp codes, bundled with heavy steel strapping, and packaged strictly matching foundation erection sequence to prevent site layout chaos.
Direct evaluation by Dean and lead power engineers. We respond in under 4 hours.
