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RESOLUTION OF THE MINISTRY OF EMERGENCY SITUATIONS OF THE REPUBLIC OF BELARUS

of May 18, 2021 No. 39

About approval of regulations and rules on ensuring nuclear and radiation safety

Based on item 4 of article 21 of the Law of the Republic of Belarus of June 18, 2019 No. 198-Z "About radiation safety", the paragraph of the fourth of part three of article 6 of the Law of the Republic of Belarus of July 30, 2008 No. 426-Z "About use of atomic energy", subitem 7.4 of Item 7 of the Regulations on the Ministry of Emergency Situations of the Republic of Belarus approved by the Presidential decree of the Republic of Belarus of December 29, 2006 No. 756, the Ministry of Emergency Situations of the Republic of Belarus DECIDES:

1. Approve:

regulations and rules on ensuring nuclear and radiation safety of "The requirement to the managing systems important for safety of nuclear power plants" (are applied);

regulations and rules on ensuring nuclear and radiation safety of "The requirement to systems of emergency electric utility service of nuclear power plants" (are applied).

2. Recognize invalid:

paragraphs the fourth and fifth Item 1 of the resolution of the Ministry of Emergency Situations of the Republic of Belarus of May 11, 2010 No. 19 "About approval of regulations and rules on ensuring nuclear and radiation safety";

the resolution of the Ministry of Emergency Situations of the Republic of Belarus of June 30, 2010 No. 30 "About approval of regulations and rules on ensuring nuclear and radiation safety of "The requirement to the managing systems important for safety of nuclear power plants".

3. This resolution becomes effective after its official publication. 

Minister

V. I. Sinyavsky

It is approved

Committee for State Security of the Republic of Belarus

 

Ministry of Internal Affairs of the Republic of Belarus

 

Ministry of Health of the Republic of Belarus

 

Ministry of Natural Resources and Environmental Protection of the Republic of Belarus

 

 

Approved by the Resolution of the Ministry of Emergency Situations of the Republic of Belarus of May 18, 2021 No. 39

Regulations and rules on ensuring nuclear and radiation safety of "The requirement to the managing systems important for safety of nuclear power plants"

Chapter 1. General provisions

1. Regulations and rules on ensuring nuclear and radiation safety of "The requirement to the managing systems important for safety of nuclear power plants" (further - Rules) establish technical requirements to safe handling of sources of ionizing radiation and radiation objects regarding the managing systems important for safety (further - USVB) nuclear power plants (further - the NPP).

2. In these rules the following terms and their determinations are used:

automated management of the NPP - control exercised with participation of personnel through USVB;

automatic control - control exercised of USVB without participation of personnel;

hardware-software devices - programmable digital devices at which the software is inseparable (integral) part of the hardware (example of the hardware-software device the processor containing microcode is);

blocking - managing function which purpose is prevention or the termination of actions of personnel, USVB, or object of management;

implementation of protection (blocking) - the NPP and the set of transactions specified in operational documentation translating USVB provided by the project in condition in case of which protection (blocking) will be enacted in case of approach afterwards of conditions which according to the project of the NPP require its work;

verification - confirmation on the basis of submission of objective certificates of the fact that the result of activities at stage of lifecycle of managing system of the NPP important for safety, is received with observance of requirements imposed to this system at this stage of system lifecycle;

conclusion from work of protection (blocking) - the NPP and the set of transactions specified in operational documentation transferring USVB to condition in case of which protection (blocking) will not be enacted in case of approach afterwards of conditions which according to the project of the NPP require its work provided by the project;

lifecycle of USVB - set of stages of development which there passes USVB, for the period the existence, including the following stages: development of the specification, designing, production, testing, acceptance, installation, adjustment and operation;

protection - managing function which purpose is prevention of damage, refusals, destructions of the protected equipment or elements of managing systems, inadmissibility of use in operation of the defective equipment or elements of managing systems, non-admission of undesirable actions of personnel for management;

the measuring channel (the channel of control) - functionally allocated part of system performing the finished function from perception of the measured size before receipt of result of its measurements;

the person machine interface - set of the NPPs of technical measures for providing the operator of the NPP with necessary information and opportunities for control and management of systems and elements of the NPP provided in the project;

information function - the set of actions of USVB (functional group) directed to achievement of the particular purpose specified in the project documentation of the NPP (except for the operations performed for own needs of the specified systems (functional group), the NPP realizing submission of information to personnel on condition, characteristics (parameters) of systems, elements of the NPP or the NPP in general without direct management of object;

the channel (systems, functional group) - the part of system (functional group) performing function of system (functional group) in the amount established by the project of the NPP;

complex testing of USVB - testing of USVB, in the modes of its work provided in the project of the NPP for normal operation and in case of violations of normal operation of the NPP;

controlled safe condition of the NPP - the condition of the NPP supported during unrestricted time in case of which the main functions safety of the NPP are ensured;

unauthorized access - the access to the equipment (elements) of system of the NPP which is not permitted in accordance with the established procedure;

trial operation of USVB - operation of USVB on the NPP for the purpose of determination of the actual characteristics of USVB, confirmation of their compliance to requirements of the project documentation, assessment of readiness of personnel of the NPP for operation of USVB;

acceptance tests of USVB - the testing which are carried out after trial operation of USVB on the NPP for determination of compliance of parts of USVB to the engineering design (task), quality evaluations of trial operation;

programmable digital devices - the elements of managing systems using the software including hardware-software devices;

system of single time - exact synchronization of hours of all computing nodes entering the managing systems of the NPP important for safety;

special technical means for management of beyond design basis accidents - managing systems (elements) provided in the project of the NPP for management of beyond design basis accidents;

managing system - the system of the NPP exercising control of object (objects) on the set purposes, criteria and restrictions;

USVB - the managing system which is on influence on safety of the NPP important for safety;

managing function - the set of actions of USVB (functional group) directed to achievement of the particular purpose specified in the project documentation of the NPP realizing management of object (system or element of the NPP) on the set purposes, criteria and restrictions;

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