Switchyard Structures
ENGINEERED FOR STRENGTH. BUILT FOR LONG-TERM SERVICE.
Breadcrumb
High StrengthCorrosion ProtectionGlobal StandardsProject Delivery
Product Overview
Switchyard Structures form the backbone of AIS (Air Insulated Substation) yards. They are designed to support and interconnect high-voltage equipment, transmit mechanical loads to the foundation, and withstand extreme wind, seismic, and short-circuit forces. Item Specification Product Type Switchyard Structure Application AIS Substation / Switchyard Material Q235B / Q355B / ASTM A36 / A572 Structure Type Lattice / Tubular / Portal / Frame Surface Treatment Hot Dip Galvanized / Powder Coated Galvanizing Standard ISO 1461 / ASTM A123 Design Standard IEC 60826 / IEC 61936 / IEC 62305 / ASCE 10 / GB Wind Speed Up to 60m/s Seismic Intensity Up to 9 degree Service Life More than 30 years
DesignProject-specific engineering
MaterialQ235B / Q355B / Q420B
ProtectionHot-dip galvanized
StandardsIEC / ASTM / EN / GB
Key Features
Corrosion Protection
Engineered for Safety
Flexible Design
Long Service Life
TYPES OF SWITCHYARD STRUCTURES
1. Single-Bay Structure
2. Double-Bay Structure
3. Multi-Bay Structure
4. High Mast Structure
5. Portal Frame Structure
6. Extension Structure
TECHNICAL SPECIFICATIONS (EXAMPLE)
Voltage Level (kV) Structure Type Height Range (m) Span Range (m) Load Capacity (kN) Material Surface Treatment Design Standard
66 - 132 Single-Bay 6 - 15 5 - 12 10 - 40 Q235B / Q355B HDG (≥85μm) IEC 60826 / IEC 61936
110 - 220 Double-Bay 8 - 20 8 - 16 20 - 80 Q235B / Q355B HDG (≥85μm) IEC 60826 / IEC 61936
220 - 330 Multi-Bay 10 - 24 12 - 20 40 - 120 Q355B HDG (≥85μm) IEC 60826 / IEC 61936
500 - 800 High Mast / Portal 18 - 40 16 - 30 80 - 200 Q355B / Q420B HDG (≥85μm) IEC 60826 / IEC 61936
Note: Data above for reference only. Custom designs available according to project requirements.
PROJECT CASES
Representative structures for international power infrastructure projects.
Project reference 01
Project reference 02
Project reference 03
Project reference 04Manufacturing Process
Controlled production from certified raw material to export-ready delivery.
01Raw MaterialHigh-quality steel inspection.
02CuttingCNC cutting for precise dimensions.
03Drilling & PunchingAccurate drilling and punching.
04WeldingAutomatic welding ensures strong joints.
05GalvanizingHot dip galvanizing for corrosion protection.
06InspectionStrict quality inspection at each stage.
07Packing & DeliverySecure packing and timely shipment.
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