Wind - Electric Energy

Cables and wires for wind turbines


Wind energy is the fastest growing renewable energy sector in the world. On all continents, there is an increasing focus on energy generation based on wind power and therefore also on the construction of large-scale wind farms. They are expected to increasingly replace energy generation from fossil fuels and, like solar energy and photovoltaic systems, make a significant contribution to environmental protection and sustainability. Cables and lines for wind turbines must therefore be particularly robust and durable in order to withstand the extreme conditions and external influences.

What forces act on cables and lines in wind turbines?
Cables, glands and protective conduits in wind turbines must continuously and reliably withstand various mechanical forces and external influences. Downtimes or failures in wind turbines can only be avoided in the long term if all components match in quality and function.
Connection solutions in wind turbines must withstand torsion, traction and extreme climatic conditions such as temperature fluctuations and UV radiation. Therefore, long-lasting products are required that are specifically designed for optimal use in wind turbines. 

Which requirements have to be met by cables and lines for wind turbines?
Due to very different climatic conditions at locations such as Asia or Europe, as well as specific technical requirements, the demands on cables, glands, lines and connectors are extremely high in terms of temperature resistance, vibration resistance and torsional strength.
Cables and glands for wind turbines must accordingly be designed for a temperature range of -40 to +90°C and withstand torsion and UV radiation, often for many years onshore like offshore.


Temperature-resistant cables and cable glands for wind turbines

Cables and cable glands for wind turbines must be temperature-resistant in order to withstand a wide range of weather conditions. Depending on the location of the wind turbine, the connection components used must withstand a wide range of temperatures and also extreme temperature fluctuations. Therefore, the requirements regarding the temperature resistance of cables, cable glands and protective hoses are extremely high and specific at the same time. Many of the installed parts must maintain their reliable functionality in temperature ranges from -40 to +90°C for years and must not be damaged by external influences.

Torsion-resistant cables and wires for wind turbines

In wind turbines, there is strong torsional force acting on the power cables or control cables used: Torsional forces occur, for example, during loop installation, i.e. in the transition from the rotating cabin to the static tower area, when connecting generators and control units or when used in moving machine components. The mechanical and electrical functionality deteriorates, especially under long-term loads. Therefore, cables and lines for wind turbines must be torsion-resistant and robust.

Professional and high-quality connection solutions for wind energy from LAPP

At LAPP, we combine your requirements with years of expertise and the highest quality. This is how we succeed in offering you customised connection solutions that perfectly fit your needs. Take a look at our product catalogue or find out more about the services offered by our project business team.

Wind Park in Gaildorf


Whether wind turbines, photovoltaic systems or charging systems for electric vehicles - in the field of renewable energies, LAPP offers a broad product portfolio for reliable, high-quality and intelligent connection solutions. We present selected projects in which these solutions are successfully used.
From a height of 200 metres in Gaildorf, up to 160,000 cubic metres of water flow from the base of the wind turbine through plastic pipes into the nacelle. That is 4 metres more than the Glymur waterfall in Iceland - the second highest in Iceland.
Read more in our article on LAPPconnect.