Environmental Engineering Reference
In-Depth Information
The methods elaborated and used by different
organizations are included in knowledge base:
Category III: Expert review comment is
aimed to improve document quality sub-
mitted for expert review (if inaccuracies of
formulations, contradictions, misprints etc.
are detected in a document substantiating
safety).
• IAEA methods;
• Methods of SSTC NRS;
• Methods of the regulatory authority of
Russia;
• Methods
of
European
regulatory
For convenience of data search and processing
a possibility to search by a random combination of
such classification features as NPP name, power
unit number, name of I&C systems, enterprise-
developer of I&C system, type of document which
substantiates safety, number of expert review
report and title of regulatory requirement, is
provided in this chapter.
On the basis of these data a statistic analysis
that allows detecting different adverse tendencies,
to which expert should pay special attention dur-
ing safety assessment in future, will be performed.
Purposes of this analysis are as follows:
authorities;
• Methods of the nuclear regulatory author-
ity of USA (US NRC);
• Methods of Institute of Safety Technologies
(Germany).
In Chapter 7 results of expert reviews of NRS
of the NPP I&C systems are contained. Data about
meeting of regulatory requirements in documents,
substantiating safety of the NPP I&C systems,
which passed expert evaluation, are included in
this chapter. Requirements of regulatory docu-
ments which was checked during expert reviews
of NPP I&C systems, and also assessment of
compliance to these requirements are included
to the knowledge base.
If a requirement is not sufficiently met in the
reviewed document, then one of the three catego-
ries of comments is specified:
1. Detection of most problematic requirements,
compliance with which is the worst specified
in documents substantiating safety;
2. Detection of the most problematic systems
from the point of compliance with regulatory
requirement of NRS;
3. Detection of designers that issue documents
of the lowest quality (i.e. with the largest
amount of expert comments on them);
4. Detection of systems and specified to them
requirements for which the most severe and
important comments during expert review
due to discrepancies significantly effecting
safety;
5. Possible detection of other adverse peculiari-
ties and tendencies that should be taken into
account during expert review of NRS.
Category I: Expert review comment is
aimed at elimination of probable danger
(if an actual failure to meet requirements
of NRS in modernized I&C systems is
detected);
Category II: Expert review comment is
aimed to obtain required proofs in safety
assurance (if it is detected that a require-
ment of NRS is performed in modernized
I&C systems, however its compliance is
not suiciently described in document sub-
stantiating safety);
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