Onet Technologies develops its aerial inspection techniques
Our bid to inspect a KER* tarpaulin at the Saint-Alban power plant has been selected for an intervention in mid-January 2022. Our teams will be in charge of inspecting this sheeting using dye penetrant testing (separation of the elements of a raw metal by partial melting), ultrasound and ITV using drones.
This drone inspection will avoid the use of scaffolding, and will enable us to carry out interior and exterior visual checks to establish a complete inventory of the health of the tarpaulin, which is located in a controlled zone. The inspection report will indicate whether or not any renovation work needs to be carried out...
To be able to pilot this drone, our employees had to undergo training provided by the French Civil Aviation Authority (DGAC), pass a test and obtain overflight authorizations from the DGAC and the CNPE.
A team dedicated to non-destructive testing (NDT ) will also be in charge of dye penetrant testing of welds and thickness measurement using a magnetic float.
Our aerial inspection technique will also save time and reduce maintenance costs, and will eventually be used again for other tarpaulin inspections.
Beyond this one-off intervention, our development in aerial inspection techniques (ITV, photogrammetry, etc.) is well underway.
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*KER = nuclear island effluent control and discharge circuit (REP)