Environmental Engineering Reference
In-Depth Information
Chapter 8 contains information about incidents
in NPP of Ukraine caused by failures (disopera-
tion or false operation) of I&C systems. For each
incident name, date and time of occurrence, detail
description, causes of incident and its category
according to international scale of INES (that
specifies evaluation of incident from the point of
influence to NPP safety) is specified. As additional
classification features for convenient data search
the following are specified: NPP name, number
of power unit and I&C system that caused failure.
In Chapter 9 a set of main terms and definitions
of SSTC NRS (according to national and interna-
tional regulatory documents), used during safety
assessment and analysis of the NPP I&C systems
and during development of regulatory documents,
is included. Its necessity is caused by that one
and the same terms can have different definition
in different regulatory documents of Ukraine and
international standards. For convenient search all
terms are divided into specific enlarged groups,
for example, terms related to NPPs, to their safety,
to quality assurance, to reliability etc.
Chapter 10 contains reports of research and
development activities related to NPP I&C systems
and performed by employees of SSTC NRS. In
the knowledge base title of report, author's name,
date of issue and text of report are contained.
Chapter 11 contains publications of employees
from SSTC NRS and other Ukrainian and foreign
authors classified in the following way:
In turn, each of them is divided into two sub-
categories:
•
I&C systems;
•
Issues not related to I&C systems.
For each publication a title, author, edition
(magazine, collected papers), in which the article
is published, year of publication, publishing house
and full text are specified.
Note that Chapters 1-7 are devoted to direct use
during expert review of NRS. At the same time,
other Chapters 8-11 are auxiliary and provide a
possibility to obtain additional information, that
can be required for experts during safety assess-
ment of the NPP I&C systems.
When it's necessary in future, a considered
list can be extended, and new chapters can be
additionally included into the knowledge base
according to specific organization's needs.
The described above knowledge base can be
the basis for creation of automated system for
support of expert activity (ASSEA). First steps for
development of knowledge base and ASSEA in
SSTC NRS was described in Klevtsov, 2007,a-c,
Klevtsov, 2008, a-b.
The purpose of such work is development of
software that will allow efficiently accumulat-
ing, systemizing, processing and quickly finding
required data contained in different information
sources for supporting NRS expert review of the
NPP I&C systems.
The knowledge base is a main component of
the ASSEA that allows experts to apply knowl-
edge bases and retrieve information required for
making decisions during expert review of the
NPP I&C systems.
It is supposed that the ASSEA will include the
following elements:
•
Safety and risk;
•
Reliability;
•
Related issues.
Each of these categories is divided into three
subcategories:
• General issues;
• NPP;
• Other branches.
• Subsystem of making-decision support;
• Knowledge base;
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