scholarly journals Experience of Separating Regulatory and Technical Requirements for Nuclear and Radiation Safety

2016 ◽  
pp. 3-12
Author(s):  
M. Yastrebenetsky ◽  
Yu. Rozen ◽  
I. Shevchenko ◽  
O. Dybach ◽  
O. Hryhorash
Keyword(s):  
Control Systems ◽  
Radiation Safety ◽  
Legal Framework ◽  
Functional Safety ◽  
Regulatory Requirements ◽  
Regulatory Documents ◽  
Technical Requirements ◽  
Nuclear And Radiation Safety ◽  
Standard Practices ◽  
And Control

Within the concept of improving the regulatory and legal framework of Ukraine on nuclear and radiation safety, the paper justifies the need for separation of proven and generally accepted safety principles formulated in the legal and regulatory documents as obligatory (“regulatory”) requirements and “technical” requirements established in the standards of the operating organizations and/or codes of standard practices, which explain in details regulatory requirements from the documents of higher level. The paper considers the results based on the development of first in Ukraine standards, regulations and rules on functional safety of instrumentation and control systems and their components, where the separation of regulatory and technical requirements is implemented.

scholarly journals Licensing of the Neutron Source in Ukraine: Challenges and Solutions

2019 ◽  
pp. 18-24
Author(s):  
O. Kukhotskyi ◽  
I. Bilodid ◽  
A. Shepitchak ◽  
S. Nemtsova
Keyword(s):  
Neutron Source ◽  
Radiation Safety ◽  
National Laboratory ◽  
Argonne National Laboratory ◽  
Nuclear Research ◽  
Legal Framework ◽  
Scientific Center ◽  
Fundamental Research ◽  
Nuclear And Radiation Safety ◽  
Operating Organization

A research nuclear facility, the Neutron Source Based on the Subcritical Assembly Driven by a Linear Electron Accelerator (Neutron Source), is under commissioning in the National Scientific Center “Kharkiv Institute of Physics and Technology” (NSC KIPT), Ukraine, as an international collaborative project of NSC KIPT and the Argonne National Laboratory (ANL), USA. The Neutron Source is intended to study subcritical systems and generate neutrons to be used in applied and fundamental research in physics, chemistry, biology, and medicine. The construction of a state-of-art nuclear research facility is a challenge for both the operating organization (NSC KIPT) and the regulatory authority (SNRIU). NSC KIPT faced the technical challenges caused by the unique design features of the facility. SNRIU faced the two major challenges: no regulations to govern nuclear and radiation safety; no experience in licensing such a type of facility. This paper discusses aspects related to the challenges and solutions in licensing of the Neutron Source, including development of the regulatory and legal framework on nuclear and radiation safety, review of the safety justification documents for the new nuclear subcritical facility and verification calculations.

Organization and Information Support of Expert Reviews of I&C Systems Modernization at NPP of Ukraine

2017 ◽  
pp. 1678-1707
Author(s):  
Alexander Klevtsov ◽  
Vladislav Inyushev
Keyword(s):  
Life Cycle ◽  
Radiation Safety ◽  
Automated System ◽  
Information Support ◽  
Practical Implementation ◽  
Nuclear Facilities ◽  
Expert Review ◽  
Life Cycle Stages ◽  
Nuclear And Radiation Safety ◽  
And Control

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. Specific safety assessments of NPP I&C systems at different 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.

Basic Provisions of NPP Safety Assurance in the Period of Extended Time of Russia NPP Units

2004 ◽  
Author(s):  
I. V. Kaliberda ◽  
L. P. Soloviev ◽  
P. G. Medvedev ◽  
V. P. Slutsker ◽  
R. Havel
Keyword(s):  
Service Life ◽  
Radiation Safety ◽  
Safety Analysis ◽  
Safety Regulation ◽  
Unit Operation ◽  
Extended Time ◽  
Safety Assurance ◽  
Regulatory Documents ◽  
Nuclear And Radiation Safety ◽  
Safety Rules

This paper presents an overview of Russian regulatory basis for extension of the service life of NPP units in Russia. The regulatory documents are being developed in the frames of Russian National IAEA Project. Russian regulatory approaches are in compliance with international practice, Russian principles of nuclear and radiation safety regulation conform the present Russian reality. The paper presents information about new Safety Rules and Guides. Problematic issues concerning improvement of Russian regulatory basis are presented and analyzed. Additional period of the NPP unit operation is defined by the period of operation of its critical equipment. If critical equipment has a very short additional period of operation, modernization and reconstruction of the equipment is required for extension of the NPP service life. Aspects of probabilistic safety analysis are discussed, taking into account effects of modernization. The paper also presents effective technical and administrative measures of ensuring safety during additional period of NPP units operation in Russia.

Health Aspects of Disaster Preparedness and Response Panel Session 1: Water-related Hazards

2006 ◽  
Vol 21 (S3) ◽  
pp. s79-s81 ◽  
Author(s):  
Keyword(s):  
Control Systems ◽  
Human Resource Development ◽  
Disaster Preparedness ◽  
Public Information ◽  
Legal Framework ◽  
Panel Session ◽  
Key Issues ◽  
The Common ◽  
Disaster Preparedness And Response ◽  
And Control

AbstractThis Panel Session consisted of three country reports (Bagladesh, Bhutan, and Myanmar) and the common issues identified during the Panel discussions relative to water-related hazards and events in the Southeast Asia Region. The primary event discussed regardless of the hazards encountered was flooding. The merits of the responses generated in Bangladesh before, during, and following the 2004 floods provide evidence of what can be accomplished in community and national levels of preparedness.Many key issues arose in the discussions: (1) command and control systems and SOPs; (2) ready resources; (3) public information and education and human resource development; (4) community-level preparedness; (5) accessibility to health care; (6) increased focus on disease prevention and control; (7) management of dead bodies; (8) need for a legal framework; (9) funding and the management of funds; and (10) relationships with themedia.

scholarly journals Implementation of Lessons Learnt from Severe Accidents for Instrumentation and Control Systems of Ukrainian NPPs

2016 ◽  
pp. 61-67
Author(s):  
M. Yastrebenetsky ◽  
A. Dybach ◽  
A. Klevtsov ◽  
Yu. Rozen ◽  
S. Trubchaninov
Keyword(s):  
Control Systems ◽  
Radiation Safety ◽  
Stress Tests ◽  
New Approach ◽  
Severe Accidents ◽  
Lessons Learnt ◽  
Safety Parameters ◽  
Main Factors ◽  
And Control ◽  
Display Systems

Lessons learnt from severe accidents at NPPs are one of the main factors defining NPP progress. The paper is devoted to the consideration of these lessons in respect to instrumentation and control systems (I&C) of Ukrainian NPPs. The accident at Three Mile Island NPP has shown a lack of available methods of information presentation to personnel. The main conclusions of this accident in Ukraine was the creation (with support of USA organizations) of safety parameters display systems (SPDS), which were implemented at 11 units with VVER-1000. The tasks resulting from Chornobyl NPP accident for I&C systems mainly included the development of a new approach to ensuring safety culture by NPP personnel and I&C designers, state review of nuclear and radiation safety for all I&C important to safety, development of regulatory documents with requirements for I&C safety. The main challenges after Fukushima NPP accident were to perform stress-tests of I&C hardware, tighten requirements for I&C resistance to environment impacts, develop new systems (e.g., post-accident monitoring systems).

scholarly journals Nuclear and Radiation Safety of the Centralized Spent Fuel Storage Facility in Ukraine

2017 ◽  
pp. 3-10
Author(s):  
O. Hryhorash ◽  
O. Dybach ◽  
S. Kondratiev ◽  
O. Horbachenko ◽  
A. Panchenko ◽  
...  
Keyword(s):  
Nuclear Fuel ◽  
Spent Nuclear Fuel ◽  
Radiation Safety ◽  
Storage Facility ◽  
Spent Fuel ◽  
Regulatory Documents ◽  
Thermal Regimes ◽  
Fuel Storage ◽  
Nuclear And Radiation Safety ◽  
Biological Protection

The paper presents the analysis of ensuring nuclear and radiation safety in the management of spent nuclear fuel at the Centralized SFSF and activities planned for Centralized SFSF lifecycle stages. There are results of comparing requirements of U.S. regulatory documents used by the HOLTEC Company to design Centralized SFSF equipment staff with relevant requirements of Ukrainian regulations, results based on analysis of the most important factors of Centralized SFSF safety (strength and reliability, nuclear safety, thermal regimes and biological protection) and verified expert calculations of the SSTC NRS. The paper includes issues to be considered in further implementation of Centralized SFSF project.

Organization and Information Support of Expert Reviews of I&C Systems Modernization at NPP of Ukraine

2014 ◽  
pp. 369-396
Author(s):  
Alexander Klevtsov ◽  
Vladislav Inyushev
Keyword(s):  
Life Cycle ◽  
Radiation Safety ◽  
Automated System ◽  
Information Support ◽  
Practical Implementation ◽  
Nuclear Facilities ◽  
Expert Review ◽  
Life Cycle Stages ◽  
Nuclear And Radiation Safety ◽  
And Control

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. Specific safety assessments of NPP I&C systems at different 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.

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