On-line maintenance

Maintenance of Nuclear Power Plants. General Provisions and Organisation

Figure 1 - French nuclear power plants in operation

Figure 2 - Operating diagram of a PWR nuclear power plant (closed circuit)

Figure 3 - Perspective view of a four-loop boiler

Figure 4 - Replacing a tank cover

Figure 5 - Transporting an alternator stator from Le Havre to Chinon (© EDF – Olivier Banon)

Figure 6 - Test loop for the study of stress corrosion of high-speed tubes (EDF Recherche et Développement Chatou)

Figure 7 - CETIC main hall with swimming pool, fuel handling machine and component mock-ups

Figure 8 - Intervention on a valve in a nuclear zone (© Areva, Ave Multimedia)

Figure 9 - Defining radiological zones on a site

Figure 10 - Trend in annual average individual doses

Figure 11 - Management of the service floor and polar bridge during a unit shutdown (© Christel Sasso/TOMA)

Figure 12 - Rondier on tour (© Aram de Valada)

Figure 13 - Fuel handling with the loading machine

Figure 14 - A COPAT (© Aram de Valada)

Figure 15 - Velaines national spare parts store (© EDF – G. Balloffet)

Figure 16 - Workshops at IRUP in Saint-Étienne

Figure 17 - Arrival of GVs built by Mitsubishi Heavy Industries and installed by ONET Technologies (© Onet Technologies)

Figure 18 - Quality control by the contractor (Entreprise Boccard © EDF – D. Queyrel)