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ECN publicatie:
Titel:
Maintenance and periodic testing programme of the High Flux Reactor
 
Auteur(s):
Boogaard, J.P.
 
Gepubliceerd door: Publicatie datum:
ECN STST 1996
 
ECN publicatienummer: Publicatie type:
ECN-RX--96-007 Overig
 
Aantal pagina's: Volledige tekst:
16  Niet beschikbaar.

Samenvatting:
The High Flux Reactor (HFR) located at Petten, some 50 km north-west ofAmsterdam belongs to the Institute of Advanced Materials of the Joint Research Centre (JRC) of the European Commission. The day-to-day operation and the maintenance of the plant are carried out under contract by the Netherlands Energy Research Foundation (ECN). The HFR is a 45 MW water cooled and moderated multi-purpose research reactor offering an extended number of irradiation positions and facilities. The HFR is normally operated following a pre-scheduled cycle programme consisting of 11 cycles of about 275 full power days per year. To ensure reliable and safe operation an extended preventive maintenance and periodic testing programme has been developed and put in charge. This programme has been based on the licensing requirements, the safety relevance of the systems involved, and the operational requirements and is a result of more than 33 years of maintenance experience. Following the draft IAEA Safety Series 35.G7 'Maintenance Periodic Testing and Inspections of Research Rectors' periodic testing is defined as the activities performed to fulfill the surveillance requirements specified in the operational limits and conditions and is intended to ensure compliance with them. The periodic testing programme of the HFR is being carried out by both operational group and maintenance group. Especially during the check-out procedure carried out prior to each reactor start-up the availability and correct functioning of all safety related systems are checked by the shift operators. On the other hand the calibrations, inspections and other special license requirements are carried out under responsibility of the technical service groups. After the vessel replacement in 1984 the already existing process of continuous upgrading and replacement of ageing components has been accelerated considerably with the objective to maintain the HFR as a modern up-to-date research and isotope production tool. 5 figs., 2 tabs., 6 refs.


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