Environmental Engineering Reference
In-Depth Information
Chapter 12
Organization and Information
Support of Expert Reviews of
I&C Systems Modernization
at NPP of Ukraine
Alexander Klevtsov
State Scientiic and Technical Centre for Nuclear and Radiation Safety, Ukraine
Vladislav Inyushev
State Scientiic and Technical Centre for Nuclear and Radiation Safety, Ukraine
ABSTRACT
Safety assessment of Instrumentation and Control systems (I&C systems) of NPP is performed during
expert reviews of nuclear and radiation safety in the framework of the licensing process at all life cycle
stages of I&C systems. Life cycle stages of NPP I&C systems, which are determined by current guides,
rules, and standards of Ukraine, are considered in the chapter. A short overview of the main principles
of safety regulation of nuclear facilities, licensing, and expert review of nuclear and radiation safety is
presented. Speciic safety assessments of NPP I&C systems at diferent life cycle stages are analyzed (in
particular, a list of documents proving NPP I&C safety that should be submitted for expert review at
each stage is given). Such assessment is a labor-intensive process that requires processing considerable
amounts of a variety of information. Hence, it is reasonable to provide experts with information support
for assessing the safety of NPP I&C systems. The chapter gives suggestions and examples of practical
implementation of the automated system for support of expert activities and considers the knowledge
base for I&C systems.
INTRODUCTION
Life cycle of the NPP I&C systems consists
of several consecutive stages that cover develop-
ment of systems requirements, design, testing,
implementation in NPP, operation. Furthermore,
assessment of the NPP I&C systems is performed
at all life cycle stages in the framework of expert
review nuclear and radiation safety (NRS).
Safety assurance is one of the most important
tasks during the operation of nuclear power
plants. Instrumentation and control systems play
an important role and are involved in control of
a majority of technological processes at NPPs.
Search WWH ::
Custom Search