Periodic inspection

Inspection of support structures, machines and rotor blades of wind turbines

All wind turbines must be inspected at regular intervals by an independent expert on the supporting structure, machinery and rotor blades. If you miss these deadlines, you run the risk of losing your planning permission or insurance cover. The inspection must be carried out every two years. According to the German Institute for Building Technology (DIBt), the inspection interval can be extended from two to four years if maintenance is carried out annually. In addition, the recurring protection test and the test in accordance with DGUV V3, formerly BGV A3, must be carried out every four years. With the aid of video endoscopy methods, metrological testing of the lightning protection system, chemical analysis of oils and greases, offline vibration measurement, thermography and protection testing, we underpin the quality.

Find out more about the rotor blade inspection of a wind turbine in our video

Scope of recurring inspections (WKP)

  • Basic inspection of tower, machines and rotor blades

  • Inspection for condition-based maintenance (ZOI) (in addition to the WKP, e.g. vibration measurement and gear oil analysis)

  • Tests after commissioning

  • Inspections before the end of the warranty period

  • Damage assessment of individual components (gearbox, rotor blades, transformer)

Nils Stendorf, Abteilungsleiter Technik der Inspektionsstelle Mechanik

Wind energy

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Combustion engines / CHP

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Components

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Fuel cells

Awarded and certified

Accredited as a certification body according to DIN EN ISO/IEC 17065, inspection body according to DIN EN ISO/IEC 17020 and as a testing laboratory according to DIN EN ISO/IEC 17025 by the German Accreditation Body (DAkkS). Formerly recommended by the Bundesverband der Energie- und Wasserwirtschaft e.V. (BDEW) and currently by FGW e.V. – Fördergesellschaft Windenergie und andere Erneuerbare Energien.