ORDER OF THE STATE INSPECTION OF NUCLEAR REGULATION OF UKRAINE

of November 25, 2019 No. 508

About modification of Requirements for nuclear and radiation safety to the information and managing systems important for safety of nuclear power plants

According to Articles 22, 24 Laws of Ukraine "About use of nuclear energy and radiation safety", for the purpose of enhancement of regulatory legal acts on regulation of nuclear and radiation safety of nuclear installations ORDER:

1. Approve Changes in the Requirements for nuclear and radiation safety to the information and managing systems important for safety of nuclear power plants approved by the order of the State inspection of nuclear regulation of Ukraine of July 22, 2015 No. 140, registered in the Ministry of Justice of Ukraine on August 06, 2015 for No. 954/27399, which are applied.

2. (Stolyarchuk B.) to provide to department on safety issues of nuclear installations submission of this order on state registration in the Ministry of Justice of Ukraine in accordance with the established procedure.

3. This order becomes effective from the date of its official publication.

4. I reserve control of execution of this order.

Approved by the Order of the State inspection of nuclear regulation of Ukraine of November 25, 2019 No. 508

Changes in Requirements for nuclear and radiation safety to the information and managing systems important for safety of nuclear power plants

1. In the Section I:

Items 1, 2 to state 1) in the following edition:

"1. These Requirements extend to the information and managing systems and elements important for safety of nuclear power plants, components (software and hardware complexes, technical means of automation) and the software of the specified systems, and also to processes of their development, assessment, confirmation of conformity and operation. Information and managing systems are divided into the managing security systems and control and management systems determined in General provisions of safety of the nuclear power plants approved by the order of the State committee of nuclear regulation of Ukraine of November 19, 2007 No. 162, registered in the Ministry of Justice of Ukraine on January 25, 2008 for No. 56/14747 (with changes) (further - General provisions of safety of nuclear power plants).

These Requirements extend also to technical means of automation as a part of the providing, protective, localizing security systems, technological systems of normal operation and processing equipment, the functions of automatic control (technical diagnosing, display, the alarm system, registration) performing in these systems or management (protection, restriction, regulation, blocking) connected with control and management of engineering procedures of nuclear power plant or support actions of operational personnel during periodic control of condition and/or characteristics of designs, systems, components of processing equipment, reveal violations of their working capacity, notify personnel on results of control and the revealed violations, except for service functions which are used only during repair of these systems or the equipment.

2. The terms used in these Requirements are used in such values:

the safe controlled condition of the power unit - condition of the power unit in case of which stabilization of any transition processes is reached the reactor is in subcritical condition, also limited exit of radioactivity is provided necessary heat removal;

verification - confirmation by the analysis and provision of objective proofs that the results received at each stage of development meet the purposes and the requirements which were set at the previous stages;

refusal - event which leads to violation of operability of system (component), that is to loss of capability to perform one or several required functions;

maintenance - recovery of capability of system (component) to perform all necessary functions which is performed directly on site operation by personnel of the information and managing systems with use, if necessary, operational and recovery reserve intended for this purpose tools and devices and operational documentation;

conclusion from work - the intended temporary termination of use of system (component) to destination with preserving possibility of accomplishment of necessary part of the main and/or additional functions of system (component) including which are specially provided for this mode;

violation type - violation manifestation form (for example, failure, false operation, break, short circuit, unauthenticity of entrance signal);

product - the unit of production of technological appointment which is made passed tests and is delivered or is delivered for autonomous application or for use as a part of other product;

limiting service conditions - violation of the operating conditions of operation considered by the project, probability of origin and which duration are insignificant;

additional function of system (component) - function which supplements the main functions of system (component) and promotes achievement of necessary consumer properties, qualities and/or reliability of their accomplishment;

the operational self-contained unit - separate component of system or its component for which the possibility of transportation, storage and application in the set conditions, without the need for placement in other operational self-contained unit is provided and provided;

element - component of information and managing system which is at the lowest level of disaggregation that is further disaggregation of which in specific case is impossible or inexpedient;

lifecycle - set of stages of creation, implementation and use of system (component) in the range of time which begins with the moment of development of the concept and determination of technical requirements and comes to an end in case of conclusion of system (component) from operation in connection with impossibility or inexpediency of further use to destination;

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