A cold November morning, wind whipping across the field. A typical maintenance crew on a high-voltage pylon, 30 meters above the ground – in windy, wet conditions, and fully equipped. The equipment is heavy, the wet conditions dangerous. Every move has to be perfect. Because there's no room for error when maintaining high-voltage lines.
Such scenarios are part of everyday life for technical response teams in the energy supply industry. They demonstrate that high-voltage pylons are not just essential infrastructure – they are also demanding workplaces. In this article, we take a look at the different pylon types, the challenges of maintaining them, and a solution that offers technicians real safety.
Types of high-voltage pylons – variety for different networks
Numerous designs of high-voltage pylons are in use in Germany and Europe, depending on the terrain type, voltage level, and technical requirements. The most common include:
Danube mast
A classic feature of the river landscape: The Danube mast features two distinctive supporting masts with crossbeams. It is particularly suitable for large spans in open terrain.
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Range: Overhead lines, long-distance networks
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Overall height: 30–70 m
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Feature: Stable, symmetrical design for multiple circuits
barrel mast
More compact and space-saving – the barrel mast is often found in urban or difficult terrain situations.
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Range: Distribution networks, cities
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Overall height: approx. 25–40 m
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Feature: Slim silhouette, one-sided arrangement of the conductor cables
Portal construction
Typically found at substations or on railway lines, often in combination with transformer systems.
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Range: Stationary infrastructure, network transitions
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Construction: Two vertical supports with horizontal connection
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Feature: Good accessibility, clearly defined work zones
special shapes
Depending on the region and function, End masts, Truss masts, guyed masts or Overhead line portals in use. Each mast type has specific requirements regarding maintenance, statics, and accessibility.
👉 More on high-voltage infrastructure and grid operation, among other things at 50Hertz
Maintenance at height: risks & requirements
High-voltage pylons are maintenance-intensive structures – whether for insulator inspection, line measurement, or corrosion control. This regularly presents key challenges:
1. Working at height under extreme conditions
Wind, rain, ice, or heat – weather conditions make any maintenance work a risk. The height requires constant safety, and any carelessness can have serious consequences.
2. Climbing techniques requiring high effort
Traditionally, maintenance teams use climbing irons, rope safety devices, or permanently installed ladder structures. These are often difficult to access, not tamper-proof, and cause significant physical strain.
3. Access problems & vandalism protection
Especially in remote areas, access to masts must be secured against unauthorized access. Conventional systems often do not provide adequate protection.
HighStep Systems: Efficient and safe maintenance of all types of high-voltage pylons
HighStep Systems revolutionizes access to high-voltage pylons with a modular solution based on a permanently installed rail. Two system variants are available – depending on the application profile and safety requirements.
HighStep Easy: Ergonomic. Safe. Tamper-proof.
The HighStep Easy System replaces traditional crampons or simple ladders with a pedal-based climbing system that allows for intuitive ascent and descent, just like climbing stairs. The system demonstrates its strengths, particularly on high masts and in changeable weather conditions.
Benefits for high-voltage infrastructure:
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Reduced risk of falling: The user remains permanently connected to the climbing rail – the risk of missteps or slipping is significantly minimized.
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Less physical strain: The ergonomic movement protects muscles and joints – a crucial factor for regular maintenance work at height.
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Tamper-proof: Without the appropriate system module, the rail cannot be used – unauthorized access or vandalism is effectively prevented.
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Integrated work platform: The pedals can be used as a stable base – ideal for longer work on the mast head or during installations.
HighStep Lift: Convenient, time-saving and ideal for inspections
For regular inspections, documentation or transport of tools, the HighStep Lift offers an even more efficient solution: a battery-operated personnel lift that also moves along the climbing rail.
Advantages in everyday use:
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Significantly faster access: The lift reduces ascent and descent to just a few minutes – particularly relevant when there are many masts along a route.
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Increased safety and comfort: No active climbing required – the technician is protected throughout the ride and can concentrate on his work.
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Efficient use of resources: Less physical strain means less need for recovery and more operations per day – this improves the cost-effectiveness of maintenance.
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Remote control for material transport: The lift can also transport tools or spare parts without the need for an additional person.
Conclusion: Safety and efficiency as the new standard
Especially with exposed types of high-voltage pylons with difficult accessibility, changing weather conditions, and high security requirements, traditional access solutions reach their limits. The systems from HighStep Systems offer a well-thought-out, durable and economical alternative – developed for professionals who do not accept compromises.
👉 Contact us if you would like to significantly reduce the workload of your maintenance teams while simultaneously raising safety to a new level.
Frequently Asked Questions
What types of high-voltage pylons are there?
There are various mast types, such as the Danube mast (a slender design that widens from the bottom), the barrel mast (cylindrical), as well as portal structures and special shapes. Each type has different static and structural characteristics.
What are the challenges associated with maintenance?
Climbing work takes place in windy, hot, or icy conditions, requires heavy equipment, and poses a risk of falling. Furthermore, the masts must be protected from vandalism and unauthorized access.
How does the HighStep system facilitate maintenance?
With the HighStep Easy (pedal-operated) and HighStep Lift (electric passenger lift) modules, employees can ascend ergonomically and safely. The rail is vandal-proof and allows for continuous security, significantly reducing maintenance time.
