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ASTM A572 Grade 50 Double-Circuit 15m High-Voltage Transmission Steel Pole Seismic Resistant IEC 60826
Product Details:
| Place of Origin: | Jiangsu, China |
| Brand Name: | ECER Steel Pole |
| Certification: | ISO 9001:2015, ISO 14001, OHSAS 18001 |
| Model Number: | ESP-DC-15M-A572 |
| Document: | Company Profile-HX.pdf |
Payment & Shipping Terms:
| Minimum Order Quantity: | 2 Pieces |
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| Price: | USD 550-1200 / Piece |
| Packaging Details: | Nude with VCI (Volatile Corrosion Inhibitor) wrapping, steel-banded on ISPM 15 fumigated hardwood pallets |
| Delivery Time: | 15 working days |
| Payment Terms: | T/T,L/C at sight |
| Supply Ability: | 1500 Pieces per Month |
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Detail Information |
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| Material: | ASTM A572 Grade 50 | Height: | 15 Meters |
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| Shape: | Dodecagonal (12-sided) Tapered | Circuit Configuration: | Double-Circuit Vertical |
| Voltage Level: | 66kV-132kV | Surface Treatment: | Hot-Dip Galvanized Per ASTM A123 |
| Zinc Coating Thickness: | ≥100μm (min 700g/m²) | Wind Speed Rating: | 200 Km/h |
| Seismic Zone: | Zone IV (PGA 0.24g) | Top Diameter: | 250mm |
| Bottom Diameter: | 520mm | Wall Thickness: | 6-12mm |
| Base Plate: | 850x850x35mm With 12 Anchor Bolts | ||
| Highlight: | ASTM A572 Grade 50 steel pole,double-circuit high-voltage transmission pole,seismic resistant electric steel pole |
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Product Description
ASTM A572 Grade 50 Double-Circuit 15m Transmission Steel Pole
Product Overview
The ESP-DC-15M-A572 represents our flagship double-circuit transmission pole solution, fabricated from ASTM A572 Grade 50 high-strength low-alloy steel (345 MPa yield). Engineered for 66kV through 132kV transmission networks, this 15-meter dodecagonal pole features a seismic-resistant design per IEC 60826 and supports dual vertical circuit configurations with independent phase spacing.
Key Features
- ASTM A572 Grade 50 Steel: Premium HSLA steel with 345 MPa minimum yield strength, excellent weldability, and superior toughness at low temperatures (-20°C Charpy V-notch certified)
- Double-Circuit Configuration: Factory-engineered arm layout for two independent 3-phase circuits on a single pole structure, halving ROW requirements
- IEC 60826 Seismic Design: Analyzed using response spectrum method for Zone IV seismic loading (PGA 0.24g), with verified modal frequencies above lock-in thresholds
- Dodecagonal Cross-Section: Near-circular aerodynamic profile reduces wind drag coefficient by 15% compared to octagonal equivalents
- VCI Packaging: Volatile Corrosion Inhibitor wrapping protects machined surfaces during ocean freight and extended site storage
Technical Specifications
| Parameter | Value |
| Voltage Range | 66kV / 110kV / 132kV |
| Circuit Type | Double-Circuit Vertical (DCV) |
| Conductor Capacity | Up to ACSR Hawk (477 MCM) per phase |
| Foundation Type | Direct embedment or anchor bolt cage |
| Design Code | ASCE 48-11 / IEC 60826 |
| Service Life | 50+ years (design basis) |
Applications
Designed for high-voltage transmission corridors where right-of-way is constrained, urban transmission line upgrades, substation interconnections, and grid reinforcement projects. The double-circuit configuration is particularly cost-effective for parallel feeder routes serving growing load centers.
Engineering Support
Every ESP-DC order includes complimentary foundation design calculations, PLS-POLE structural analysis report, and site-specific wind/seismic loading verification. Our in-house transmission engineering team provides full project lifecycle support from conceptual design through commissioning.
