We recognise the importance of early inspection and preventative maintenance of wind turbines in order to minimise repairs and subsequent downtime, ensuring integrity and reliability.
With an increasing number of ageing assets, and the move from onshore to less accessible offshore wind installations, which are often located in harsh and challenging environments, inspection is an important means of identifying damage at an early stage or before it even occurs.
Conventional and advanced non-destructive testing (NDT) techniques are key tools in establishing the condition of structures including individual bolts, pins and welds. It determines bolt condition and circumferential weld integrity on tower sections and nacelle structural components.
Our experience in offshore engineering, deploying rope access specialist NDT technicians to work above open water enables Alpha to deliver NDT inspection of monopiles, jackets, ladders and transition pieces.
All NDT can be carried out via rope access with inspectors being accredited to SPRAT and IRATA standards.
The NDT services available from Alpha include:
- Close visual inspection
- Magnetic particle inspection (MPI)
- Liquid penetrant inspection (LPI)
- Ultrasonic inspection
- Eddy current inspection
- Phased Array Ultrasonics (PAUT)
We are currently researching how we can use PAUT to verify the spar cap material layer and the bonding integrity between the shear webs and spar caps of blades where the spar caps are made of GFRM (glass fibre reinforced materials) or CFRM (carbon fibre reinforced materials). Contact us to discuss further.
Alpha’s parent, Sparrows Group, is a DNV GL and ABS approved NDT service provider.
Statutory inspection ensures fixed and portable wind turbine apparatus is safe and in compliance with regulatory standards.
Wind turbines contain a mixture of equipment subject to statutory inspection and maintenance and our inspection team, qualified to perform thorough examinations of lifting and mechanical handling systems, assure clients of compliance to local legislation.
Our capability includes:
- Anchor point inspection and test
- Crane and hoist inspection including load testing
- Lift inspection
- Ladders and walkway certification
- Loose lifting gear inspection
- Written scheme of examination development
All reports of thorough examination are logged in our client portal, Connect, enabling full and instant on-line access to an asset’s certification and inspection history.
Our experience in the development of written schemes delivers an engineered solution which evaluates environmental conditions and loading and utilisation of equipment, providing the means to extend the interval between inspections. The consequence of which is reduced overall inspection cost.
The Sparrows Group, our parent organisation, is accredited to UKAS EN17020 as an inspection body for lifting equipment.