500kV Substation Gantry Structure
High-strength portal frame structures for ultra-high voltage substations | Hot-dip galvanized Q460C steel
Technical Specifications
Comprehensive engineering parameters for 500kV substation portal frame structures. All specifications comply with international transmission line design standards.
| Parameter | Standard | Value/Options |
|---|---|---|
| Height Range | GB/T 2694 | 18m - 35m (59-115 ft) — customizable |
| Span Width | IEC 60826 | 12m - 28m (39-92 ft) |
| Main Pipe Diameter | GB/T 8162 | φ300mm - φ600mm (12-24 in) |
| Wall Thickness | GB/T 1591 | 6mm - 16mm (0.24-0.63 in) |
| Design Wind Speed | IEC 60826 | 45m/s (100mph) — customizable to 60m/s (134mph) |
| Seismic Intensity | GB 50011 / UBC | 8 degree (Chinese standard) / Zone 4 (UBC) |
| Connection Method | GB/T 1231 | High-strength bolts Grade 8.8/10.9 |
| Foundation Type | Site-specific | Concrete embedded or flange plate |
| Service Life | IEC 60826 | 50+ years with maintenance |
Engineering Advantages
Advanced manufacturing processes and design features that ensure superior performance in demanding substation environments.
Anti-Corrosion Excellence
Double-layer hot-dip galvanizing process, 25-year rust warranty for tropical climates. Proven performance in Myanmar coastal projects since 2021.
High-Strength Connections
CNC machined flange plates with error ≤0.5mm, ensuring precise bolt alignment during installation. Eliminates field-fit issues and accelerates assembly.
Seismic Resilience
Flexible joint design tested for 8-degree seismic zones. Validated in Southeast Asia earthquake-prone regions with proven performance record.
Modular Design
Bolted connections enable rapid on-site assembly reducing installation time by 40% versus welded alternatives. Minimizes field labor requirements.
Manufacturing Standards Compliance
Xytower operates under internationally recognized quality management systems and manufacturing standards, ensuring product consistency for global infrastructure projects.
Heritage
& Engineers
Projects Completed
Production Capacity
Project References
Verified installations across Southeast Asia, demonstrating Xytower's capability to deliver complex substation infrastructure in diverse environmental conditions.
Completed
Tenaga Nasional Berhad Substation Upgrade
35 units | 2022 | 500kV transmission infrastructure | Rapid deployment completed 3 weeks ahead of schedule
View Case Study
Successfully Operating
Yangon Region Power Grid Enhancement
18 units | 2021 | High-corrosion coastal environment | Enhanced duplex coating system deployed
View Case Study
Completed
Provincial Electricity Authority Rural Electrification
42 units | 2023 | Mixed terrain installation | Modular design enabled helicopter transport to remote sites
View Case StudyCustomization Options
Xytower provides engineering support to adapt standard designs to site-specific requirements, ensuring optimal performance in any operating environment.
Galvanizing Options
Ancillary Components
Foundation Adaptations
Design Load Variations
Request Detailed Engineering Proposal
Our technical team will provide load calculations, foundation drawings, and installation guidance within 24 hours. We support EPC contractors and utility planners with comprehensive project documentation.
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Access technical documentation, CAD samples, and certification documents for your engineering evaluation and procurement process.
All designs subject to site-specific structural analysis. Final specifications will be confirmed based on geotechnical survey data and local wind/snow load requirements. Contact our engineering team for project-specific consultation.