Substation Gantry
Product Overview
Substation Gantries (also known as Take-off or Dead-end structures) are heavy-duty steel portal frames designed to terminate overhead transmission lines at the substation entrance. They endure massive mechanical tension from conductors, shield wires, and heavy substation equipment under extreme climate conditions.
Technical Specifications
Fully compliant with international substation design codes (ASCE 113, IEC, ASTM, EN).
|
Item |
Standard Specification |
Buyer Options (Full Customization) |
|
Structure Type |
Lattice Structure / Tubular Portal Frame |
Custom A-Frame, H-Frame, or Pi-Frame |
|
Voltage Range |
10kV up to 500kV+ Substation Substructures |
Tailored to clearing distance requirements |
|
Material Equivalent |
Q355B / Q235B / Q420 High-Strength Steel |
ASTM A572 Gr. 50/65, EN10025 S355JR / S275 |
|
Design Loading |
Wind speed up to 200 km/h + Conductor Tension |
Custom calculated per local weather station data |
|
Connection Type |
High-Strength Bolted Flange / Splice Plates |
Grade 8.8 or 10.9 hot-dip galvanized bolts |
|
Surface Treatment |
Hot-Dip Galvanized (ISO 1461 / ASTM A123) |
85–120 μm (Duplex painting coating available) |
|
Design Service Life |
30+ Years |
Engineered for long-term critical infrastructure |
Manufacturing Process & Quality Assurance
Material Traceability: 100% Raw Steel Mill Test Certificates (MTC) according to EN 10204 3.1 provided for every production batch.
Precision Fabrication: CNC drilling, cutting, and automated welding processes. All welding lines strictly comply with AWS D1.1 / EN ISO 3834 standards with 100% Visual Testing (VT).
Non-Destructive Testing (NDT): Ultrasonic Testing (UT) or Magnetic Particle Testing (MT) applied to critical tension welds based on project specifications.
Trial Pre-Assembly: We perform 100% factory trial assembly for complex gantry joints before hot-dip galvanization to guarantee zero-error field installation on site.
Export Logistics & Marking System
Smart Component Marking: Every single angle bar, plate, and tube is stamped with a permanent, unique code matching the assembly drawings for rapid field sorting.
Sea-Worthy Bundle Packing: Steel components are securely bundled using heavy-duty straps and protected by wooden skids, burlap, or multi-layer wrap to eliminate zinc friction and sea-salt corrosion.
Container Space Optimization: Custom length and bundle configuration designed to fit 40ft HQ/OT (Open Top) containers, maximizing space utilization to lower your total landed cost.
Full Project Documentation Supplied
Dispatched with every shipment for seamless engineering sign-off and customs clearance:
Structural Load & Stress Calculation Reports (STAAD.Pro / PLS-POLE equivalent output)
Approved Shop/Fabrication & Assembly Drawings
Hot-Dip Galvanizing Inspection Reports
Material Test Certificates (MTC EN 10204 3.1)
Detailed Container Packing Lists (Itemized by bundle and mark numbers)
Procurement & Service Information
OEM / ODM Service: Fully Available (Tailored to local power utility specification sheets)
Engineering Support: Full structural and CAD detailing support available
Sample Policy: Material samples and joint mockup samples available upon request
Delivery Terms: FOB, CFR, CIF, DDP supported
FAQ
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