Download - Monopole vs Lattice Tower
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Monopole vs Lattice TowerMonopole vs Lattice Tower
AestheticAesthetic
•Slim shapeSlim shape
•Cross-arms straight or Cross-arms straight or « gullwing »« gullwing »
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Surface on groundSurface on ground
Urban areaUrban area
ParisParis
TaiwanTaiwan
Lattice tower: 30 to 100 m²Lattice tower: 30 to 100 m²
Tubular steel pole: 3 to 10 m²Tubular steel pole: 3 to 10 m²
For special conditions, the For special conditions, the monopoles are designed and monopoles are designed and optimized.optimized.
Bottom diameter Bottom diameter can be reduced can be reduced when using thick when using thick plates (thus heavy plates (thus heavy press brakes) and press brakes) and HYSS (high yield HYSS (high yield stress steel)stress steel)
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Surface on groundSurface on ground
Agricultural areaAgricultural area
Better conditions for farmers (ploughing, harvesting, etc….)Better conditions for farmers (ploughing, harvesting, etc….)
Less property payment (depending of square meters)Less property payment (depending of square meters)
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Less ROW (right of way)Less ROW (right of way)
•Reduced bottom diameterReduced bottom diameter
•Compact lines; post Compact lines; post insulatorsinsulators
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InstallationInstallation
Helicopter in remote access areasHelicopter in remote access areas
• Weight limited to Weight limited to 2.5 up to 5 tons per 2.5 up to 5 tons per sectionsection
Special designSpecial design
•Special centering Special centering and orientating and orientating system requiredsystem required
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Heavy weather conditionsHeavy weather conditions•Wind, tornadoes, typhoonsWind, tornadoes, typhoons
•AvalanchesAvalanches
•SeismesSeismes
•Tree falls on conductorsTree falls on conductors
•Advantages of tubular Advantages of tubular poles:poles:
•HYSS – flexibilityHYSS – flexibility
•Torsion behaviourTorsion behaviour
•Lattice towers: rigidityLattice towers: rigidity
•Low torsion abilityLow torsion abilityFrance wind storm France wind storm december 1999december 1999
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VandalismVandalism
•Terrorist-proof Terrorist-proof
•Lattice angles robberyLattice angles robbery
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Monopoles - LatticeMonopoles - Lattice
Pole S3 H4 Pylône H92