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Title:
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Maintenance and periodic testing programme of the High Flux Reactor
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Author(s):
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Published by:
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Publication date:
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ECN
STST
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1996
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ECN report number:
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Document type:
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ECN-RX--96-007
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Other
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Number of pages:
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Full text:
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16
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Download PDF
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Abstract:
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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