Tower components
and technical specifications
Components of an SBB tower
Discover more by clicking on the red dots
Move your finger over the image to discover the elements of the tower You can click on the circles to find out more.
Modular design for ERS transmission lines
Modularity is at the heart of the concept of SBB towers. Our goal is to allow a minimum of components to cover a maximum of needs. For example, you do not purchase towers for the 220 kV and additional towers for the 400 kV. You acquire equipment that can be recombined differently to be used for all voltages on your network.
Technical specifications
Our towers in numbers :
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Tower sections: 2.90m/10ft or 1.97m/6.5ft length in 6061-T6 aluminum alloy
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Tower height: up to 125 meters/400 ft.
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Self-supporting capacity: up to 15-30 meters (50-100ft) depending on the loads
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Winds: up to 270 km/h (168mph)
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Ice: up to 60 mm ice (2.3")
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Voltages: 69kV to 1,200kV
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Number of conductors per phase: 1 to 6
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Erection time: 30m / hour