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3  INSPECTION AND ASSESSMENT ACTIVITIES AT NUCLEAR INSTALLATION
 

Supervisory activity of UJD on the safety of nuclear installations in compliance with Act No. 130/1998 Coll. and other regulations covers the assessment and inspection activities of UJD.

Assessment activity

The assessment activity of UJD in relation to nuclear installations is based on review of safety documentation for facilities constructed in nuclear energy industry. The scope of safety documentation required for assessment is defined in Act No. 130/1998 Coll. In 1998 several "new" nuclear installations belonged into this category of UJD activity. As examples EMO NPP in commissioning stage, the National repository of radioactive waste in Mochovce in the stage completion of construction and Facility with technology for radioactive waste treatment in Bohunice can be given. Also important were activities aiming at improving the safety of nuclear installations in operation (e.g. major safety upgrading of EBO V-1 NPP, or reconstruction of Interim spent fuel storage in Jaslovské Bohunice). Assessment activities of UJD were focusing on meeting general and specific requirements for nuclear safety in design, on assessment of commissioning programs, on assessment of the most important operational instructions, limits and conditions, etc.

In compliance with Act No. 130/1998 Coll. an important part of the assessment activity of UJD is represented by review of safety important modifications on nuclear installations. This related mainly to review of a number of design modifications, the realization of which is conditioned by approval from UJD.

In connection with the design modifications it was necessary to review also a number of individual programs of quality assurance (and their amendments), which UJD was approving by its relevant resolutions. The developers used these documents also in proceedings required according to the construction law and its implementation regulations.

Separate category of the assessment activities of UJD is assessment of the operational safety - mainly of nuclear power installations. In compliance with common international practice this activity is based on assessment of operational events, adhering to limits and conditions of safe operation and on assessment of safety indicators.


Inspection activity

Obr.
An internal directive regulates the inspection activity of UJD, part of which is also the annual inspections plan consisting of the following types of inspections: Mainly site inspectors carry out routine inspections . Site inspector at the nuclear installation checks the compliance with requirements and conditions of nuclear safety, especially the technical condition of nuclear installations, compliance with approved limits and conditions and selected operational instructions, and that is during the construction, operation and maintenance, as well as when decommissioning.

Special inspections focus on rather special areas (e.g. fire safety, or qualification and training of NPP personnel, etc.), especially on control of meeting the requirements of UJD according to §34 of Act No. 130/1998 Coll.

Team inspections are aimed at complex inspection of the nuclear installation and usually run in parallel in several professional areas. A typical team inspection is for example, checking the readiness of the equipment and control of compliance with the conditions imposed by UJD to the license for issuing an approval to start up the unit after the refueling. Team inspections, as a rule, concentrate on areas set based on a long-term assessment of performance of the license.

Reactive inspections are unplanned initiated by events at nuclear installations. The supervisory authority responds to situation in the license organization.

When the new Act No. 130/1998 Coll. came into effect new demands on the capacity of UJD inspectors came up, and that is in a form of their taking part in "construction tests" at classified safety important equipment, completed in their erection, as well as attending pressure strength tests on safety important mechanical equipment.

Obr.
Nuclear safety inspectors, most of them having long-term experience in commissioning and operation of nuclear installations, perform the inspection activity of UJD. Qualification of nuclear safety inspectors is maintained in compliance with the internal regulation of UJD, while most of them attended various forms of training organized in co-operation with the IAEA, or special training organized in co-operation with nuclear regulatory authorities in European countries, US, Canada and Japan.

From all inspections the nuclear safety inspectors prepare a protocol, which states the inspection findings and contains also measures imposed for removal of shortcomings.




INSPECTION AND ASSESSMENT ACTIVITIES AT NUCLEAR INSTALLATION:

3.1 JE EBO, V-1 NUCLEAR POWER PLANT
3.2 JE EBO, V-2 NUCLEAR POWER PLANT
3.3 JE EMO, MOCHOVCE NUCLEAR POWER PLANT
3.4 SE-VYZ, A-1 NUCLEAR POWER PLANT
3.5 SE-VYZ, TECHNOLOGY FOR TREATMENT AND CONDITIONING OF RADIOACTIVE WASTE
3.6 SE-VYZ, NATIONAL RADIOACTIVE WASTE REPOSITORY IN MOCHOVCE
3.7 SE-VYZ, INTERIM SPENT FUEL STORAGE
3.8 NUCLEAR INSTALLATIONS OPERATED BY VUJE TRNAVA
3.9 STATISTICAL DATA ON ASSESSMENT AND INSPECTION ACTIVITY OF UJD


 
 
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